期刊文献+
共找到230篇文章
< 1 2 12 >
每页显示 20 50 100
Chickpea(Cicer arietinum Linn.)starch:Extraction,composition,structure,properties,modifications and food applications
1
作者 Sevenur Sarıkaya Batuhan Inanlar +2 位作者 Heba G.R.Younis Guohua Zhao Fayin Ye 《Grain & Oil Science and Technology》 2025年第2期118-136,共19页
Chickpea(Cicer arietinum Linn.)is a widely cultivated edible legume worldwide.Starch is the major carbohydrate in chickpea seeds and amounts up to 50%of the dry matter.Compared with other legume starches and cereal st... Chickpea(Cicer arietinum Linn.)is a widely cultivated edible legume worldwide.Starch is the major carbohydrate in chickpea seeds and amounts up to 50%of the dry matter.Compared with other legume starches and cereal starches,there is a lack of systematic review on chickpea starch.Herein,this review summarized the extraction,composition,structure,properties,modification and food uses of chickpea starch.Literatures showed that chickpea starch exhibited unique molecular structures and functional properties differed from other starches from legumes,cereal and tubers.Moreover,chickpea starch has been found to have remarkable resistance to digestion.The chickpea resistant starch showed prebiotic effect and potential health benefits.To date,chickpea starch has been modified by physical,chemical,biological and dual modification methods to change its functional properties such as swelling power,solubility,thermal,pasting,gel textural properties,and digestibility,which are essential to widen its applications.In food sectors,chickpea starch could be used as fillings,thickeners,gelling agents or a source of resistant starch in various formulated foods.In the end,suggestions on how to deeply understand and exploit chickpea starch are proposed. 展开更多
关键词 Chickpea starch Physicochemical properties Treatment Food application
在线阅读 下载PDF
Total Phenolic and Flavonoid Contents of Cymbocarpum widemannii and Their Antioxidant, Antimicrobial, DNA Damaging Activities
2
作者 Mehmet Fidan Behcet Inal +2 位作者 Mesut Sırrı Bülent Hallaç Ulutas Mehmet Sefa 《Phyton-International Journal of Experimental Botany》 2025年第3期781-791,共11页
The use of conventional herbal medicines is a rapidly expanding phenomenon in developed nations. For instance, 30%–50% of all drug use in China is attributed to traditional herbal preparations. Current study evaluate... The use of conventional herbal medicines is a rapidly expanding phenomenon in developed nations. For instance, 30%–50% of all drug use in China is attributed to traditional herbal preparations. Current study evaluated the antioxidant (DPPH, FRAP), total phenolic and flavonoid content, antibacterial activity, and DNA damage protective potential of aqueous and methanolic extracts obtained from the aerial parts and roots of Cymbocarpum wiedemannii Boiss., an endemic plant in Turkey. In antioxidant analyses, the methanolic extract of the aerial parts showed the highest %DPPH (73.38) and IC50 (3.46 mg/mL) values. The FRAP analysis revealed the highest iron-reducing capacity in the methanolic extract of the aerial parts (108.10 ± 0.11 mg FeSO4/mL). The aqueous extract of the aerial parts exhibited the highest total phenolic content (1.69 ± 0.02 mg gallic acid/mL), while the methanolic extract of the aerial parts had the highest total flavonoid content (13.53 ± 0.09 mg rutin/mL). Antibacterial activity tests showed no significant effect at a concentration of 1 mg/mL for the samples. DNA protective effects were tested on pBR322 plasmid DNA, demonstrating that both aerial and root extracts could protect DNA from Fenton reaction-induced damage. In conclusion, C. wiedemannii exhibits potential bioactive properties, particularly in terms of its antioxidant and DNA protective effects. 展开更多
关键词 ANTIOXIDANT ANTIMICROBIAL DNA damage C.wiedemannii
暂未订购
Phenolic compounds of green tea: Health benefits and technological application in food 被引量:10
3
作者 Jose Manuel Lorenzo Paulo Eduardo Sichetti Munekata 《Asian Pacific Journal of Tropical Biomedicine》 CAS 2016年第8期709-719,共11页
Green tea has been an important beverage for humans since ancient times, widely consumed and considered to have health benefits by traditional medicine in Asian countries. Green tea phenolic compounds are predominatel... Green tea has been an important beverage for humans since ancient times, widely consumed and considered to have health benefits by traditional medicine in Asian countries. Green tea phenolic compounds are predominately composed of catechin derivatives, although other compounds such as flavonols and phenolic acids are also present in lower proportion. The bioactivity exerted by these compounds has been associated with reduced risk of severe illnesses such as cancer, cardiovascular and neurodegenerative diseases. Particularly, epigallocatechin gallate has been implicated in alteration mechanisms with protective effect in these diseases as indicated by several studies about the effect of green tea consumption and mechanistic explanation through in vitro and in vivo experiments. The biological activity of green tea phenolic compounds also promotes a protective effect by antioxidant mechanisms in biological and food systems, preventing the oxidative damage by acting over either precursors or reactive species. Extraction of phenolic compounds influences the antioxidant activity and promotes adequate separation from green tea leaves to enhance the yield and/or antioxidant activity. Application of green tea phenolic compounds is of great interest because the antioxidant status of the products is enhanced and provides the product with additional antioxidant activity or reduces the undesirable changes of oxidative reactions while processing or storing food.In this scenario, meat and meat products are greatly influenced by oxidative deterioration and microbial spoilage, leading to reduced shelf life. Green tea extracts rich in phenolic compounds have been applied to increase shelf life with comparable effect to synthetic compounds, commonly used by food industry. Green tea has great importance in general health in technological application, however more studies are necessary to elucidate the impact in pathways related to other diseases and food applications. 展开更多
关键词 Phenolic profile HEALTHY Neurodegenerative diseases Extraction of polyphenols Antioxidant mechanism Food stability
在线阅读 下载PDF
Significance of Biogenic Amines in Foods and Their Reduction Methods 被引量:2
4
作者 Songul Sahin Ercan Huseyin Bozkurt Cigdem Soysal 《Journal of Food Science and Engineering》 2013年第8期395-410,共16页
The term "biogenic amines" defines decarboxylation products such as histamine, putrescine, serotonin, tyramine, phenylethylamine, tryptamine and also aliphatic polyamines. They can be detected in both raw and proces... The term "biogenic amines" defines decarboxylation products such as histamine, putrescine, serotonin, tyramine, phenylethylamine, tryptamine and also aliphatic polyamines. They can be detected in both raw and processed foods. In the recent years, there is a great interest in biogenic amines as they are associated with quality, safety and freshness of some foods, particularly fermented foods. The presence of biogenic amines in foods can also be used as an indicator of hygienic quality. Biogenic amines also cause health hazards due to their toxic effects especially in sensitive individuals. It is therefore important to control and reduce the biogenic amines. The reduction can be brought about by the use of high pressure, irradiation, packaging, additives, starter cultures and by reduction of decarboxylase activity and temperature. This review summarizes the significance, function, occurrence and formation of biogenic amines in different foods and their reduction by different methods. 展开更多
关键词 Biogenic amines REDUCTION quality index health effects
在线阅读 下载PDF
Analysis of the Fatty Acids and Phenolic Compounds in a Cereal-Based Fermented Food (Tarhana) 被引量:1
5
作者 Maribel Ovando-Martinez Orhan Daglioglu +1 位作者 Umit Gecgel Senay Simsek 《Food and Nutrition Sciences》 2014年第13期1177-1184,共8页
Tarhana is a Turkish home-made fermented food product. The mixture of wheat flour, yoghurt, yeast, cooked vegetables, salt, and spices is fermented for 1 - 7 days. Tarhana is sun dried and ground for preparation of in... Tarhana is a Turkish home-made fermented food product. The mixture of wheat flour, yoghurt, yeast, cooked vegetables, salt, and spices is fermented for 1 - 7 days. Tarhana is sun dried and ground for preparation of instant Tarhana powder. Color, phenolic compounds and fatty acid composition were determined for home-made Tarhana, collected from 4 cities in the Thrace Region of Turkey. Color and phenolic content were significantly different (P < 0.05). These differences were due to the variation of ingredients used at different locations. The major unsaturated fatty acids were oleic (C18:1, 16.41% - 57.69%), and linoleic acids (C18:2, 9.74% - 56.31%). Palmitic (C16:0, 16.90% - 37.66%) and stearic acids (C18:0, 0.65% - 11.34%) were the main saturated fatty acids. This study suggested that Tarhana soup is a good source of unsaturated fatty acids. Antioxidant properties of phenolic compounds and their effect on peroxidation of lipids in Tarhana should be tested in future studies. 展开更多
关键词 TARHANA PHENOLIC COMPOUNDS FATTY ACID Composition
暂未订购
Opportunities and Challenges of Plant Bioactive Compounds for Food and Agricultural-Related Areas 被引量:1
6
作者 Maicon S.N.dos Santos João H.C.Wancura +2 位作者 Carolina E.D.Oro Rogério M.Dallago Marcus V.Tres 《Phyton-International Journal of Experimental Botany》 SCIE 2022年第6期1105-1127,共23页
The growing development of biological products highlights the social and environmental responsibility that several industrial companies are facing in recent years.In this context,the advancement of bioprocessing as an... The growing development of biological products highlights the social and environmental responsibility that several industrial companies are facing in recent years.In this context,the advancement of bioprocessing as an alternative for exploring the potential of ecologically based products,especially in biofuels,food,and agro-industrial business,exposes the rational efficiency of the application of renewable sources in different industrial segments.Industries strongly associated with food production concentrate large amounts of wastes rich in bioactive compounds.A range of highly effective technologies has been highly explored to recover large concentrations of prominent compounds present in these materials.The advances in this scenario assurance value addition to these by-products,in addition to highlighting their various technological applications,considering the biorefinery and ecologically based production concepts.Accordingly,this review article described a detailed and systematic approach to the importance of using bioactive compounds and exploring the main sources of these elements.Also,some recent and innovative research that has achieved encouraging results was highlighted.Furthermore,the study included the main extraction technologies that have been investigated as a strategy of prospecting the application of bioactive compounds and optimizing the processes for obtaining natural compounds from plant sources.Finally,future outlooks were presented to contribute to the innovative opportunities and applicability of highly promising technologies and manipulations of bioactive compounds from a range of perspectives. 展开更多
关键词 Biological security renewable biological resources sustainable production
在线阅读 下载PDF
Bio-control of Some Food-Borne Pathogenic Bacteria by Bacteriophage 被引量:1
7
作者 S. Kalkan E. UEnal Z. Erginkaya 《Journal of Food Science and Engineering》 2011年第4期237-244,共8页
In recent years, researchers tended to bring new alternative to biological protective systems used in conservation of food and production of safe food. Use of bacteriophage against to pathogen bacteria in food was the... In recent years, researchers tended to bring new alternative to biological protective systems used in conservation of food and production of safe food. Use of bacteriophage against to pathogen bacteria in food was the most hopeful system in these methods about bio-control. Controls of bacteriophage for each pathogen species and subspecies and determination of phage-host originality are important because efficient bio-control was achieved. Researches concentrated on some food-borne pathogen bacteria such as E. coli O157:H7, Campylobacter, Salmonella and Listeria. In a consequence of these studies made as in vitro and in vivo, first commercial production of phage which will be used in foods was made in Netherlands. Also, it has been informed that use of phage is cost-efficient alternative as compared with other preservatives. This review, discussed application of bacteriophages as bio-control agents in food and advantages and disadvantages about uses of bacteriophages by taking into account antimicrobial characteristics of them. 展开更多
关键词 BACTERIOPHAGE food-born pathogenic bacteria BIO-CONTROL ANTIMICROBIAL FOOD review.
在线阅读 下载PDF
Use of ultrasound in food preservation 被引量:2
8
作者 Songül Sahin Ercan Cigdem Soysal 《Natural Science》 2013年第8期5-13,共9页
Ultrasound is versatile and innovative technology due to its wide range of application and increase in knowledge and research studies. It is used in food industry for many purposes including analysis methods and food ... Ultrasound is versatile and innovative technology due to its wide range of application and increase in knowledge and research studies. It is used in food industry for many purposes including analysis methods and food processings such as freezing, cutting, drying, tempering, homogenization, degassing, antifoaming, filtration and extraction. Ultrasound can be used as a promoter or alternative to food processing. There may be numereous advantages of using ultrasound for food processing such as effective mixing, increased mass transfer, reduced energy, reduced temperature and increased production rate. Due to the elimination of microorganisms and enzymes without destroying nutrients of foods, ultrasound can be used as an alternative method to thermal treatments in the food preservation. Additionally, low power ultrasound is thought to be an attractive nonthermal method due to overcome problems which occur during heat treatments such as physical and chemical changes, nutritional loss and change in organoleptic properties. This review summarizes mechanism, operation and latest potential applications of ultrasound in the food preservation. 展开更多
关键词 ULTRASOUND THERMOSONICATION Manosonication Food Preservation
暂未订购
Exploration of Higher Vocational Food Specialty of Inorganic and Analytical Chemistry Teaching Reform under the Background of Information Technology
9
作者 JIAO Jianxia 《International English Education Research》 2016年第7期42-43,共2页
Inorganic and analytical chemistry is an important professional basic courses in higher vocational of food specialty. With the extensive application of Intemet technology, we analyzed the problems which appeared in "... Inorganic and analytical chemistry is an important professional basic courses in higher vocational of food specialty. With the extensive application of Intemet technology, we analyzed the problems which appeared in "Inorganic and Analytical Chemistry" and described some reform measures on the course in this paper. 展开更多
关键词 higher vocational education food professionals inorganic and analytical chemistry
在线阅读 下载PDF
Dietary L-proline supplementation ameliorates autism-like behaviors and modulates gut microbiota in the valproic acid-induced mouse model of autism spectrum disorder
10
作者 Jingjing Fang Ruixuan Geng +2 位作者 Seong-Gook Kang Kunlun Huang Tao Tong 《Food Science and Human Wellness》 SCIE CAS CSCD 2024年第5期2889-2905,共17页
The effective intervention strategy for autism spectrum disorder(ASD)are currently limited.Herein,we attempted to evaluate the potential of L-proline(Pro),a multifunctional amino acid,in ameliorating autismlike behavi... The effective intervention strategy for autism spectrum disorder(ASD)are currently limited.Herein,we attempted to evaluate the potential of L-proline(Pro),a multifunctional amino acid,in ameliorating autismlike behaviors and clarify the molecular mechanisms involved by using the typical valproic acid(VPA)-induced mouse model of ASD.Pro significantly attenuates repetitive behaviors and social dysfunction in ASD mice.The correlation analysis revealed that the beneficial effects of Pro on autism-like behaviors are related to the modulation of gut microbiota structure and composition.The histological analysis revealed that Pro could reverse the decrease of Nissl-positive cells in the prefrontal cortex(PFC)induced by VPA exposure.RNA sequencing demonstrated that Pro can also alter the PFC transcriptomic profile distinguished by the regulation of genes involved in Parkinson disease,neuroactive ligand-receptor interaction,oxidative phosphorylation,and mitogen activated protein kinase signaling pathway.Overall,dietary Pro supplementation may be a promising intervention strategy for ASD. 展开更多
关键词 L-PROLINE Autism spectrum disorder Gut microbiota Prefrontal cortex Behavior
在线阅读 下载PDF
Effect of Ozone Treatment on Microbiological Properties of Stored Wheat
11
作者 Hussein Al-Sahho Hakan Kuleaşan 《Food and Nutrition Sciences》 CAS 2024年第2期140-150,共11页
In this study, ozone gas was applied to samples of durum wheat stored in four experimental groups (durum wheat without any treatment for comparison, durum wheat treated with ozone, purified durum wheat, and purified d... In this study, ozone gas was applied to samples of durum wheat stored in four experimental groups (durum wheat without any treatment for comparison, durum wheat treated with ozone, purified durum wheat, and purified durum wheat treated with ozone). Two groups were treated with ozone gas at 3 ppm concentration for 1 hour. Groups were then placed in air-tight glass jars and stored for 6 months at variable temperatures between 24.7°C to 34.8°C. Microbiological (total count bacteria, yeast/molds and coliform) and physical properties (moisture, color and ash) evaluated. Ozone application statistically caused a significant reduction in the numbers of bacteria, yeast, molds and coliforms. Ozone application, washing process and storage temperature are the major factors affecting the microbial counts. No significant differences were determined in moisture and ash contents of samples after ozone treatment. The color measurement results showed that color values of wheat samples were affected by ozone treatment, storage and washing. 展开更多
关键词 Wheat Storage Ozone Application Wheat Impurities Microbial Enumeration
在线阅读 下载PDF
Evaluation of the Potential of Araucaria angustifolia Seeds as Source of Oligosaccharides, Resistant Starch and Growth of Probiotic Bacteria
12
作者 Rossana Catie Bueno de Godoy Celia Lúcia de Luces Fortes Ferreira +3 位作者 Jaqueline Moura Nadolny Haíssa Roberta Cardarelli Fernanda Pereira Santos Magali Leonel 《Food and Nutrition Sciences》 CAS 2024年第10期921-940,共20页
“Pinhão”, the seed of Araucaria angustifolia, is an important food, being part of the eating habits of Indigenous communities. In this study, we evaluated the oligosaccharide content, resistant starch and the g... “Pinhão”, the seed of Araucaria angustifolia, is an important food, being part of the eating habits of Indigenous communities. In this study, we evaluated the oligosaccharide content, resistant starch and the growth of probiotic bacteria. GF4 (1-fructofuranosylnystose) was the main fructo-oligosaccharides found, in higher contents compared to other food sources. Maltooligosaccharides (MOS) represented the main part of the oligosaccharides profile of Brazilian pine seeds. In descending order of importance was maltoheptaose (G7), maltohexose (G6) and maltotriose (G3). The starches from the variety Sanct josephi presented the highest amount of resistant starch that could stimulate probiotic strains, mainly B. breve and L. plantarum, and may have a prebiotic effect, potentially promoting health benefits. This study advances the understanding of the chemical composition of the main portion of the “pinhão” enhancing awareness of its potential as a healthy food source, contributing to different uses and indirectly with the species preservation. 展开更多
关键词 Maltooligosaccharides FRUCTOOLIGOSACCHARIDES Resistant Starch B. breve L. plantarum
暂未订购
Effect of Light Emitting Diodes (LEDs) on Growth, Mineral Composition, and Nutritional Value of Wheat & Lentil Sprouts
13
作者 Abdul Momin Amana Khatoon +10 位作者 Wajahat Khan Dilsat Bozdoğan Konuşkan Muhammad Mudasar Aslam Muhammad Jamil Shafiq Ur Rehman Baber Ali Alevcan Kaplan Sana Wahab Muhammad Nauman Khan Sezai Ercisli Mohammad Khalid Al-Sadoon 《Phyton-International Journal of Experimental Botany》 SCIE 2024年第6期1117-1128,共12页
Sprouts are ready-to-eat and are recognized worldwide as functional components of the human diet.Recent advances in innovative agricultural techniques could enable an increase in the production of healthy food.The use... Sprouts are ready-to-eat and are recognized worldwide as functional components of the human diet.Recent advances in innovative agricultural techniques could enable an increase in the production of healthy food.The use of light-emitting diode(LED)in indoor agricultural production could alter the biological feedback loop,increasing the functional benefits of plant foods such as wheat and lentil sprouts and promoting the bioavailability of nutrients.The effects of white(W),red(R),and blue(B)light were investigated on the growth parameters and nutritional value of wheat and lentil sprouts.In the laboratory,seeds were sown under three different LED treat-ments:white,red,and blue light,while normal incandescent light served as a control.Percentage seed germina-tion improved by 18.34%and 12.67%for wheat and 18.34%and 12.67%for lentil sprouts under LED treatments R and B,respectively.An increase in total soluble protein and sugar by 33.4%and 9.23%in wheat and by 31.5%and 5.87%in lentils was observed under the R LED treatment.Vitamin C concentrations in wheat and lentils were significantly increased by R LED compared to all other treatments.Other parameters,including potassium and sodium concentrations,were significantly increased under red and blue light compared to the control;white light,on the other hand,significantly decreased all these parameters.According to the experimental data,red and blue LED light could be beneficial in the production of functional wheat and lentil sprouts with high nutrient concentrations. 展开更多
关键词 Growth parameters LED nutritional value SPROUTS total soluble proteins
在线阅读 下载PDF
Magnetic extraction for rapid assessment of low-level Escherichia coli and Salmonella contamination in complex food matrices
14
作者 Saad Asadullah Sharief Oznur Caliskan-Aydogan Evangelyn Alocilja 《Food Quality and Safety》 2025年第2期209-223,共15页
Foodborne illnesses cause numerous hospitalizations worldwide,making rapid detection of causative pathogens critical for outbreak prevention.Enrichment of pathogens is often required to increase the minimum bacterial ... Foodborne illnesses cause numerous hospitalizations worldwide,making rapid detection of causative pathogens critical for outbreak prevention.Enrichment of pathogens is often required to increase the minimum bacterial count before detection.Traditional magnetic nanoparticle(MNP)-based extraction methods are limited by the costs associated with recognition ligands and cold storage requirements.This study presents the use of glycan-coated magnetic nanoparticles(gMNPs),synthesized via a simple one-pot method,for the rapid concentration and extraction of Escherichia coli and Salmonella enterica serovar Enteritidis.The effciency was measured using the concentration factor(CF),which was used to compare the viability of cells cultured with gMNPs with that of the controls.High CF values were achieved in large volumes,with values of 5.2±1.0 for E.coli and 3±1.3 for S.Enteritidis.Transmission electron microscopy and confocal laser microscopy confrmed gMNPs binding to bacterial cells in buffer solution and food matrices.The gMNPs effectively extracted cells in varied pH environments,indicating their potential for use in different foods.S.Enteritidis and E.coli were successfully extracted from melons,cucumber,raw chicken,and lettuce samples despite the presence of natural microbiota.Among the S.Enteritidis-inoculated food samples,the highest CF was observed in melons(5.57±2.26),followed by cucumbers(2.94±2.02),chicken(2.24±1.05),and lettuce(1.75±0.56).Real-time quantitative polymerase chain reaction(qPCR)confrmed the magnetic extraction,with the gMNP-qPCR system enabling rapid assessment of low pathogen contamination in complex food matrices.The quantifcation cycle(Cq)ratio,inversely related to the DNA concentration,corroborated the CF results,with the lowest ratio in melons(0.85±0.03),followed by cucumber(0.89±0.07),chicken(0.98±0.01),and lettuce(0.97±0.009).The entire extraction and qPCR detection process can be completed in less than 4 h. 展开更多
关键词 Magnetic nanoparticles(MNPs) glycan-coated Salmonella Enteritidis Escherichia coli foodborne outbreaks
原文传递
Phytochemical and nutritional properties of sumac(Rhus coriaria):a potential ingredient for developing functional foods
15
作者 Oscar Zannou Kouame F.Oussou +12 位作者 Ifagbémi B.Chabi Fadel Alamou Nour M.H.Awad Yann E.Miassi FifamèC.V.Loké Adam Abdoulaye Hojjat Pashazadeh Ali Ali Redha YénoukounmèE.Kpoclou Gamze Guclu Ilkay Koca Serkan Selli Salam A.Ibrahim 《Journal of Future Foods》 2025年第1期21-35,共15页
Sumac(Rhus coriaria)is a flowering plant that is widely consumed for its promoting health benefits and used in food preparations as a spice in the Mediterranean region.It is a high shrub or small tree with imparipinna... Sumac(Rhus coriaria)is a flowering plant that is widely consumed for its promoting health benefits and used in food preparations as a spice in the Mediterranean region.It is a high shrub or small tree with imparipinnate leaves,villus and red fruits with one-seeded drupe,and small greenish-white flowers.The nutraceutical and pharmaceutical potential of sumac makes it a remarkable functional food.In this review,the phytochemical and nutritional properties of sumac as an under valorized functional food have been discussed.Flavonoids,anthocyanins,phenolic acids,and organic acids have been reported as dominant phytochemicals in sumac,which are well known for their pharmacological properties that attract many consumers to commonly choose sumac in their diet as well as food preparations.The remarkable volatile compounds present in sumac give it a unique aroma that increases its acceptance by consumers and potential use in the food industry.Sumac has been evaluated for a broad range of nutritional and pharmacological activities such as antioxidant,antinociceptive,anti-inflammatory,anti-diabetic,hepatoprotective,cardioprotective,anticancer,anti-infertility,and neuroprotective potential.This review has also briefly outlined the safety concerns concerning the use of sumac in terms of toxicology and interactions. 展开更多
关键词 Sumac(Rhus coriaria) Functional food NUTRACEUTICAL Bioactive compounds
在线阅读 下载PDF
Purification of Antimicrobial Peptide from Antarctic Krill (Euphausia superba) and its Function Mechanism 被引量:10
16
作者 ZHAO Ling YIN Bangzhong +1 位作者 LIU Qi CAO Rong 《Journal of Ocean University of China》 SCIE CAS 2013年第3期484-490,共7页
The preliminary purification and antimicrobial mechanism of antimicrobial peptide from Antarctic Krill were studied in this paper. The results showed that the molecular weight range of antimicrobial polypeptide (CMC... The preliminary purification and antimicrobial mechanism of antimicrobial peptide from Antarctic Krill were studied in this paper. The results showed that the molecular weight range of antimicrobial polypeptide (CMCC-1) obtained by cation exchange chromatography was between 245-709D as detected by molecular sieve chromatography, and the minimum inhibition concentration (MIC) of CMCC-1 against Staphylococcus aureus was 5.0mgmL^-1. The antimicrobial mechanism of CMCC-1 was studied with S. aureus as indicator bacterium. Compared with control group, the results of the experimental group in which S. aureus was treated with CMCC-1 were as follows: l) CMCC-1 could inhibit cell division at logarithmic phase. 2) The protein and reducing sugar con- tent, and the conductivity of culture medium increased, and the activity of alkaline phosphatase and [3-galactosidase could be detected in the culture medium. 3) Observation under scanning electron microscope revealed that somatic morphology became irregular, and then somatic surface became coarse. The cell became much smaller, and most somatic ceils gathered. The boundary between cells became dim and finally fused as a whole. 4) Observation under transmission electron microscope showed that the surface of S. aureus became rough and the reproducing ability was restrained. The cell wall became thin and the cytoplasm shrunk. Substances inside cell leaked out, which caused cells death. 5) SDS-PAGE analysis showed that some bands disappeared, and the residual bands became vague. 6) The genomic DNA electrophoresis results showed that the genomic DNA bands ofS. aureus were not degraded but the brightness significantly reduced. Thus, it is supposed that CMCC-1 could destroy the cell wall and membrane of S. aureu, increase the cell membrane permeability and the leaking-out of intracellular substances, and thus cause the death ofS. aureu. 展开更多
关键词 Antarctic Krill antimicrobial peptide PURIFICATION antimicrobial mechanism
暂未订购
High Pressure Treatment Changes Spoilage Characteristics and Shelf Life of Pacific Oysters(Crassostrea gigas)During Refrigerated Storage 被引量:4
17
作者 CAO Rong ZHAO Ling LIU Qi 《Journal of Ocean University of China》 SCIE CAS CSCD 2017年第2期351-355,共5页
The effects of high pressure(HP) treatment on spoilage characteristic and shelf life extension of Pacific oysters(Crassostrea gigas) during refrigerated storage were studied.Results showed that HP treatment of 275 MPa... The effects of high pressure(HP) treatment on spoilage characteristic and shelf life extension of Pacific oysters(Crassostrea gigas) during refrigerated storage were studied.Results showed that HP treatment of 275 MPa for 3 min or 300 MPa for 2 min could achieve 100% full release of oyster adductor muscle,pressures higher than 350 MPa caused excessive release as the shells of oysters were broken,thus use of higher pressures should be cautious in oyster processing industry because of its adverse impact on the appearance of shells.HP treatment(300 MPa,2 min) was proper for the shucking of Pacific oyster(Crassostrea gigas) in China.This treatment caused no organoleptic disadvantage.Moreover,HP treatment resulted in obvious differences in biochemical spoilage indicators(p H,TVB-N and TBARS) changes and volatile compounds profile determined by electronic nose during storage.HP treatment(300 MPa,2 min) also led to a reduction of aerobic bacterial count(APC) by 1.27 log cycles.Furthermore,the APC values of oysters treated by HP were always lower than those of the control samples during storage.Based on the organoleptic,biochemical and microbiological indicators,shelf life of 6-8 d for control and 12 d for HP-treated oysters could be expected.HP treatment showed great potential in oyster processing and preservation. 展开更多
关键词 high pressure processing OYSTER SPOILAGE E-NOSE SHELF life
在线阅读 下载PDF
Application of Lactic Acid Bacteria(LAB) in Freshness Keeping of Tilapia Fillets as Sashimi 被引量:5
18
作者 CAO Rong LIU Qi +2 位作者 CHEN Shengjun YANG Xianqing LI Laihao 《Journal of Ocean University of China》 SCIE CAS 2015年第4期675-680,共6页
Aquatic products are extremely perishable food commodities. Developing methods to keep the freshness of fish represents a major task of the fishery processing industry. Application of Lactic Acid Bacteria(LAB) as food... Aquatic products are extremely perishable food commodities. Developing methods to keep the freshness of fish represents a major task of the fishery processing industry. Application of Lactic Acid Bacteria(LAB) as food preservative is a novel approach. In the present study, the possibility of using lactic acid bacteria in freshness keeping of tilapia fillets as sashimi was examined. Fish fillets were dipped in Lactobacillus plantarum 1.19(obtained from China General Microbiological Culture Collection Center) suspension as LAB-treated group. Changes in K-value, APC, sensory properties and microbial flora were analyzed. Results showed that LAB treatment slowed the increase of K-value and APC in the earlier storage, and caused a smooth decrease in sensory score. Gram-negative bacteria dominated during refrigerated storage, with Pseudomonas and Aeromonas being relatively abundant. Lactobacillus plantarum 1.19 had no obvious inhibitory effect against these Gram-negatives. However, Lactobacillus plantarum 1.19 changed the composition of Gram-positive bacteria. No Micrococcus were detected and the proportion of Staphylococcus decreased in the spoiled LAB-treated samples. The period that tilapia fillets could be used as sashimi material extended from 24 h to 48 h after LAB treatment. The potential of using LAB in sashimi processing was confirmed. 展开更多
关键词 lactic acid bacteria tilapia fillets SASHIMI FRESHNESS microbial flora
在线阅读 下载PDF
Effects of a Potential Autochthonous Probiotic Bacillus subtilis 2-1 on the Growth and Intestinal Microbiota of Juvenile Sea Cucumber,Apostichopus japonicus Selenka 被引量:3
19
作者 ZHAO Yancui YUAN Lei +3 位作者 WAN Junli SUN Hushan WANG Yiyan ZHANG Qin 《Journal of Ocean University of China》 SCIE CAS CSCD 2018年第2期363-370,共8页
The effects of Bacillus subtilis 2-1 from the intestine of healthy sea cucumber on the growth, digestive enzyme activities and intestinal microbiota of juvenile sea cucumber(Apostichopus japonicus) were determined in ... The effects of Bacillus subtilis 2-1 from the intestine of healthy sea cucumber on the growth, digestive enzyme activities and intestinal microbiota of juvenile sea cucumber(Apostichopus japonicus) were determined in the present study. Sea cucumber was fed with Sargassum thunbergii powder supplemented with B. subtilis 2-1 at different concentrations varying among 0(control), 10~5, 10~7, and 10~9 CFU g^(-1) for 8 weeks. Results showed that the growth performance and intestinal amylase and trypsin activities were significantly increased by dietary B. subtilis 2-1 at 10~9 CFU g^(-1)(P < 0.05). However, dietary B. subtilis 2-1 had no significant influence on the lipase activity in sea cucumber(P > 0.05). The polymerase chain reaction denaturing gradient gel electrophoresis and 16S rRNA gene sequencing analysis indicated that dietary B. subtilis 2-1 at 105 and 107 CFU g^(-1) inhibited most of the Proteobacteria including those in genus Vibrio. Dietary B. subtilis 2-1 at 10~9 CFU g^(-1) not only decreased the abundance and species of genus Vibrio, but also increased the intensity of genera Psychrobacter and Bacillus. A specific dosage of dietary B. subtilis 2-1 could increase the growth and modulate the intestinal microbiota of sea cucumber; thus it might be a novel probiotic for keeping the health of sea cucumber. 展开更多
关键词 Apostichopus JAPONICUS probiotic Bacillus GROWTH DIGESTIVE enzyme intestinal microbiota
在线阅读 下载PDF
Comparative Study on Antineoplastic Activity of Polysaccharide from Four Kinds of Sea Cucumber 被引量:3
20
作者 ZHAO Ling LIU Qi +1 位作者 YANG Xianqing CAO Rong 《Journal of Ocean University of China》 SCIE CAS CSCD 2018年第6期1473-1478,共6页
The antineoplastic activity of polysaccharide was investigated in Stichopus chlorontus, Isostichopus badionotus, Stichopus horrens and Holothuria lessoni massin. Crude polysaccharide was prepared with enzyme hydrolyza... The antineoplastic activity of polysaccharide was investigated in Stichopus chlorontus, Isostichopus badionotus, Stichopus horrens and Holothuria lessoni massin. Crude polysaccharide was prepared with enzyme hydrolyzation method and purified by anion exchange chromatography using DEAE-sepharose fast flow column. The effect of polysaccharide on cells apoptosis of SiHa and U87 was examined with cell counting kit-8 colorimetry method. Western blotting was used to analyze related proteins of cellular apoptosis including p53 and Bcl-2. Results showed that there were two main components in each sea cucumber polysaccharide, which could be eluted down by 1.0 mol/LNaCl solution. The four types of polysaccharide in the second component were named as SC-2, IB-2, HLM-2 and SH-2, respectively. They were used for comparing the antineoplastic activity. Results showed that SC-2, IB-2, HLM-2 and SH-2 could promote apoptosis of U87 and SiHa cells. SH-2 and HLM-2 were selected for the subsequent experiment to explore the additional effect of U87 and SiHa cells, The protein expressions of Bcl-2 and p53 decreased considerably with the increase of polysaccharide concentration in U87 cells. In SiHa cells, protein expressions of Bcl-2 and high dosage group of p53 decreased significantly, whereas no obvious decrease was observed in other groups. The polysaccharides are more effective in promoting apoptosis of U87 and SiHa cells from S. horrens and H. lessoni massin than from the rest species. 展开更多
关键词 SEA CUCUMBER POLYSACCHARIDE ANTINEOPLASTIC activity
在线阅读 下载PDF
上一页 1 2 12 下一页 到第
使用帮助 返回顶部