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Trends of Laboratory-Detected Heavy Metals in Children: Solutions for Heavy Metal Contamination in Infant Food Products
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作者 Maidah Khan 《Food and Nutrition Sciences》 2023年第9期791-811,共21页
In 2019, an investigation by the U.S. House of Representatives revealed major infant food conglomerates had products with high levels of arsenic, lead, cadmium, and mercury, posing concerns for infants’ vulnerability... In 2019, an investigation by the U.S. House of Representatives revealed major infant food conglomerates had products with high levels of arsenic, lead, cadmium, and mercury, posing concerns for infants’ vulnerability to the neurotoxic effects of these metals. Trends of laboratory-detected heavy metals were analyzed in children aged zero to five from 1999-2020, providing insights on heavy metal contamination in infant food products. Utilizing National Health and Nutrition Examination Survey (NHANES) data, mean heavy metal levels in children were calculated, considering gender, race, and income-to-poverty ratio as proxies for assessing associations with increasing heavy metal rates in infant food. Findings indicated an overall decrease in mean concentrations over time, though remaining elevated. Black children exhibited higher lead levels than the overall average, while the Asian subgroup displayed higher levels of total blood mercury and cadmium levels. Lack of internal standards in regulatory bodies, particularly the FDA, exacerbates the issue, with no legally enforceable guidelines or strict maximum levels for heavy metals in infant foods. Urgent FDA interventions are needed, addressing contamination at the sources of raw materials, implementing transparent and extensive product testing, and comprehensive manufacturer labeling to inform consumers about elevated heavy metal levels in infant products. 展开更多
关键词 infant Nutrition infant food Products Laboratory-Detected Heavy Metals Environmental Contaminants Consumer Safety
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Gas chromatography-electrostatic field Orbitrap high resolution mass spectrometry for screening 70 organic pollutants in infant cereal-based supplementary foods
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作者 Da Mao Qiang Li +6 位作者 Sufang Fan Tongtong Ding Yunxia Huang Yali Zhang Zhijuan Meng Jianhui Huang Yan Zhang 《Food Science and Human Wellness》 2025年第10期4173-4187,共15页
This study established a method using gas chromatography-electrostatic field Orbitrap high-resolution mass spectrometry(Orbitrap GC-MS)for the simultaneous determination of 70 organic pollutants across 4 categories:or... This study established a method using gas chromatography-electrostatic field Orbitrap high-resolution mass spectrometry(Orbitrap GC-MS)for the simultaneous determination of 70 organic pollutants across 4 categories:organochlorine pesticides(OCPs),polycyclic aromatic hydrocarbons(PAHs),polychlorinated biphenyls(PCBs),and phthalates(PAEs)in infant cereal-based supplementary foods.Techniques integrating cryogenic centrifugation and lipid and protein adsorbent(LPAS)purification were employed.The precise mass numbers of target compounds were determined by Orbitrap GC-MS in full-scan mode(Full MS),which effectively minimized matrix interferences in these foods.Method validation on rice flour samples demonstrated that the 70 compounds exhibited excellent linearity within their respective mass concentration ranges,with correlation coefficients all exceeding 0.995.The detection limits for this method ranged 0.10–1.00μg/kg,while the quantification limits varied 0.3–3.0μg/kg,meeting the established detection requirements.The average spike recovery of the 70 compounds at 3 spiked levels(5,20,and 100μg/kg)ranged 75.3%–119.3%,with relative standard deviations ranging 1.8%–10.8%.Both inter-day and intra-day precision demonstrated relative standard deviation values below 15%.This method was applied to analyze 100 samples of commercial infant cereal-based supplementary food,revealing the presence of PAEs and PAHs in 12.0%of the samples.Notably,no OCPs or PCBs were detected.The detected concentrations of benzo[a]pyrene(Ba P)and dibutyl phthalate(DBP)were(4.2±0.1)and(1.8±0.3)μg/kg,respectively.This method is straightforward,highly sensitive,and suitable for the rapid screening and confirmation of 70 organic pollutants in infant cereal-based supplementary foods. 展开更多
关键词 Gas chromatography-electrostatic field Orbitrap high-resolution mass spectrometry Cryogenic centrifugation and lipid and protein adsorbent purification Organic pollutants infant cereal-based supplementary foods
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Are Family Table Foods Appropriate for Infants? Comparing the Nutritional Quality of Homemade Meals Adapted from the Family’s Table Foods and Those Specially Prepared for Infants
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作者 Pérola Ribeiro Dirce Maria Sigulem Tania Beninga Morais 《Food and Nutrition Sciences》 2014年第13期1247-1254,共8页
The Brazilian Ministry of Health recommends that by 8 months of age, children should eat the same types of foods consumed by the other members of the family. Thus, this study sought to evaluate whether the nutritional... The Brazilian Ministry of Health recommends that by 8 months of age, children should eat the same types of foods consumed by the other members of the family. Thus, this study sought to evaluate whether the nutritional composition of meals specially prepared (SM) for children aged 7 to 18 months in low-income families was superior to that of meals adapted (AM) from the family’s table foods. Protein, fat, carbohydrate, energy, dietary fiber, iron, sodium and sodium chloride values, were determined by chemical analyses and compared to dietetic guidelines. The infants’ hemoglobin levels were also investigated. In total, sixty samples of the infants’ lunch meal (51 AM and 9 SM) were taken for during a home visit. The values of protein, fat, carbohydrate, dietary fiber and energy of the AM were significantly lower, while the sodium and sodium chloride values were significantly higher, compared to those of the SM. The AM also contained significantly more water. No differences were seen with regard to iron values. Sodium chloride amounted for most of the sodium content. Neither the SM nor AM was adequate in terms of iron and sodium. All SM were adequate for protein and fat, whereas AM showed significantly more samples with inadequate energy levels. SM fell within the Acceptable Macronutrient Distribution Range, while AM fell below the lower value for fat and slightly above the upper value for carbohydrate. The prevalence of anemia was 60% in the study population (36/60). In conclusion, meals adapted from the family’s table foods showed a lower nutrient density and a less balanced macronutrient range when compared to meals specially prepared for infants. The main nutritional shortcomings, for both AM and SM, were the extremely low content of iron and the high content of sodium. 展开更多
关键词 infant food infant Nutrition food Composition food Analysis
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Occurrence and characterization of toxigenic Bacillus cereus in food and infant feces 被引量:1
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作者 Sameer Rushdi Organji Hussein Hasan Abulreesh +2 位作者 Khaled Elbanna Gamal Ebrahim Haridy Osman Manal Khider 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2015年第7期510-514,共5页
Objective: To investigate the true incidence of Bacillus cereus(B. cereus) in food and children diarrhea cases. Methods: A total of 110 samples of various dairy products such as raw milk, long life pasteurized milk, y... Objective: To investigate the true incidence of Bacillus cereus(B. cereus) in food and children diarrhea cases. Methods: A total of 110 samples of various dairy products such as raw milk, long life pasteurized milk, yoghurt and infant powdered milk formulas, raw rice, and feces were examined for the presence of B. cereus by selective plating on mannitol-egg-yolk-polymyxin agar. Confirmation of B. cereus was carried out by biochemical tests and PCR. Identification of non-B. cereus isolates was carried out by 16 S r DNA sequencing. Antimicrobial susceptibility was done by disk diffusion method.Results: Overall 35 samples(31.8%, n = 110) yielded Bacillus-like growth. Of which 19 samples(54.28%) were positive for B. cereus. All isolates were positive for enterotoxin production. No psychrotolerant B. cereus strains were detected in all samples. All B. cereus isolates were resistant to penicillin G, but susceptible to vancomycin, erythromycin and clindamycin. Conclusions: The results of this study confirm the importance of including B. cereus in disease control and prevention programs, as well as in routine clinical and food quality control laboratories in both Saudi Arabia and Egypt. 展开更多
关键词 BACILLUS cereus BACILLUS LICHENIFORMIS Diarrhea ENTEROTOXIN food infant milk formula
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Effects of Nutrient Fortified Complementary Food Supplements on Anemia of Infants and Young Children in Poor Rural of Gansu 被引量:5
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作者 YU-YING WANG CHUN-MING CHEN +2 位作者 FU-ZHEN WANG MEI JIA KE-AN WANG 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2009年第3期194-200,共7页
Objective To assess the effectiveness of complementary food supplements with protein and multi-micronutrients on hemoglobin and anemia in infants and young children. Methods In 5 poor counties of Gansu, 984 children a... Objective To assess the effectiveness of complementary food supplements with protein and multi-micronutrients on hemoglobin and anemia in infants and young children. Methods In 5 poor counties of Gansu, 984 children aged 6-12 months were enrolled and divided into two groups. In addition to the usual home-made complementary food, all the children were fed one sachet of either Formula Ⅰ or Formula Ⅱ supplements each day. Protein and micronutrients were provided in Formula Ⅰ, while the same energy intake was secured in Formula Ⅱ as in Formula Ⅰ. A massive dose of vitamin A was supplemented to all the children every 6 months. Hemoglobin test was done at the same time. Results Prevalence of anemia was about 35% in both Formula Ⅰ and Formula Ⅱ group at baseline, and there were no differences in hemoglobin concentration between the two groups, During the 6-month and 12-month supplementation, hemoglobin of children in Formula Ⅰ group was higher than that in Formula Ⅱ group (P〈0.05), and hemoglobin increase in Formula Ⅰ group was significantly higher than that in Formula Ⅱ group (P〈0.001). After 6- and 12-mouth supplementation, the prevalence of anemia in Formula Ⅰ group dropped to 19.1% and 8.2% respectively, and it was 28.0% and 12.4% in Formula 2 group. The prevalence of anemia in Formula Ⅰ group was significantly lower than that in Formula Ⅱ group (P〈0.05). After adjusting age and hemoglobin level at baseline, the hemoglobin increase at age of 24 months in formula 1 group was higher (10.7 g/L vs 7.9 g/L, P〈0.0001). Conclusion Micronutrient fortified complementary food supplements, with large-dose vitamin A, is effective for children aged 6-12 months in terms of iron deficiency prevention. 展开更多
关键词 food fortification Complementary food supplements infants and young children HEMOGLOBIN Iron deficiency anemia
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Characteristics of Microencapsulated Nutritional Oil for Infant Formula Food
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作者 HAN Lulu LAI Ying LI Xiaodong 《Journal of Northeast Agricultural University(English Edition)》 CAS 2009年第3期41-45,共5页
Nutritional oil for infant formula food was microencapsulated by the spray drying method with coating materials including maltodextrin (MD), soy protein isolate (SPI), and emulsifier (soy lecithin). Vegetable oi... Nutritional oil for infant formula food was microencapsulated by the spray drying method with coating materials including maltodextrin (MD), soy protein isolate (SPI), and emulsifier (soy lecithin). Vegetable oil blend was prepared by mixing coconut oil, safflower oil and soybean oil at a ratio to achieve a fatty acid profile comparable to human milk fat (HMF). The fatty acid composition of the product was determined by capillary gas chromatograph. As a result, the composition was as close as possible to that of HMF, it could be used for infant fomular food to make up some deficiencies of milk powder in nutrition and functional properties. Furthermore, the glass transition temperature (Tg) of the wall material was determined by DSC and its Tg was 66.42℃. It provided a theoretical basis for the storage of the product at the normal temperature. 展开更多
关键词 MICROENCAPSULATION nutritional oil CHARACTERISTIC human milk fat infant formula food
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Comparison between <i>E. coli</i>O157:H7 and <i>Bifidobacterium</i>spp. Activity in Almond Pudding Infant Supplemental Food
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作者 Rashin Sedighi Mehrdad Tajkarimi Salam A. Ibrahim 《Food and Nutrition Sciences》 2011年第9期909-915,共7页
Almond pudding is a common traditional Iranian complementary food for infants after starting solid foods. Escherichia coli O157:H7 is one of the leading pathogenic microorganisms that cause serious foodborne disease i... Almond pudding is a common traditional Iranian complementary food for infants after starting solid foods. Escherichia coli O157:H7 is one of the leading pathogenic microorganisms that cause serious foodborne disease in different populations including infants. The large intestine of breast-fed infants is colonized predominantly by bifidobacteria, which have a protective effect against acute diarrhea. The study objective of this research was to screen the survival characteristics of E. coli O157:H7 as well as four strains of Bifidobacterium subspecies (spp.) in almond pudding. The bacterial strains were studied after three and six hours of incubation at 37℃ in-vitro. Luria-Bertani (LB) broth was used as a basic medium for both Bifidobacterium spp. and E. coli experiments in anaerobic and aerobic conditions, respectively. The viability of Bifidobacterium spp. increased from 2.46 ± 0.2 to 6.57 ±1.3 log10 CFU/ml in low inoculum and from 4.53 ± 0.7 to 7.2 ± 0.4 in high inoculum experiments in 6 hours. However, the growth of E. coli O157:H7 from 3.12 ± 0.2 to 4.99 ± 0.1 log10 CFU/ml was significantly (P < 0.05) lower compared to Bifidobacterium spp. The results illus- trate impaired growth of E. coli O157:H7 and enhanced growth of Bifidobacterium spp. in almond pudding. The finding demonstrated that almond pudding in infant’s diet may indirectly enhance the protection against survival and growth of E. coli O157:H7 by increasing the Bifidobacterium spp. populations in infant’s gastrointestinal system. 展开更多
关键词 Escherichia COLI O157:H7 BIFIDOBACTERIUM spp. infant Complementary food
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Food additives and contaminants in infant foods: a critical review of their health risk, trends and recent developments
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作者 Swati Soni Anvil Jennifer W. +2 位作者 Christine Kurian Prapti Chakraborty Kuppusamy Alagesan Paari 《Food Production, Processing and Nutrition》 2024年第1期455-477,共23页
The infant food market has expanded rapidly over the past two decades.However,the industry faces significant chal-lenges,including concerns over the health effects of infant food additives and issues with food safety.... The infant food market has expanded rapidly over the past two decades.However,the industry faces significant chal-lenges,including concerns over the health effects of infant food additives and issues with food safety.However,new evidences suggest that certain food additives,such as those used to preserve and transport infant formula to keep it fresh for longer,should be avoided.Science into the effects of additives on human behavior makes up a sizable sector of the additives market.Problems such as hypernatremic dehydration,malnutrition,and obesity in infants are directly linked to faulty formula production.The Food and Drug Administration(FDA)has established the toxicity types and chemical tests necessary for evaluating the safety of food additives and GRAS(Generally Recognized as Safe)compounds.These tests are crucial in understanding the food safety aspects of food additives.The health effects of different types of food additives on infants are discussed in this context.The article gives an outline of various national and global agencies that provides recommendations and standards to gauge the quality of baby food.The immunological responses,allergic reaction pathways and other related health hazards among the infants and young children caused by the food additive are discussed in this article. 展开更多
关键词 Health risk infant formula food food additives Immunological responses Child health
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电热蒸发-微火焰原子吸收光谱法测定婴幼儿谷类辅助食品中镉含量
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作者 杨兵 李雪 +1 位作者 陈丝 邓助林 《粮食与油脂》 北大核心 2026年第2期148-154,共7页
建立一种通过电热蒸发-微火焰原子吸收光谱法快速测定婴幼儿谷类辅助食品中镉(Cd)含量的方法。以镉的吸光度为指标,通过单因素试验优化检测条件,并进行方法学验证。结果表明:样品最佳热解条件为干燥温度400℃、干燥时间50 s、热解温度65... 建立一种通过电热蒸发-微火焰原子吸收光谱法快速测定婴幼儿谷类辅助食品中镉(Cd)含量的方法。以镉的吸光度为指标,通过单因素试验优化检测条件,并进行方法学验证。结果表明:样品最佳热解条件为干燥温度400℃、干燥时间50 s、热解温度650℃、热解时间40 s;样品最佳检测条件为催化炉温度750℃、检测氢气流量300 m L/min、检测空气流量200 m L/min、进样量100 mg。在优化条件下测定婴幼儿谷类辅助食品中镉含量的检出限为0.002 9 mg/kg,定量限为0.009 7 mg/kg,加标回收率为94.0%~102.7%,样品测定结果与石墨炉原子吸收光谱法测定结果之间无显著差异,分析时间小于4 min。建立的方法无需样品前处理、操作简便、分析时间短、绿色环保,适合婴幼儿谷类辅助食品中镉含量的快速检测。 展开更多
关键词 电热蒸发 微火焰原子吸收光谱法 婴幼儿谷类辅助食品
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高效液相色谱法测定婴幼儿配方食品和乳品中维生素B_(2)的含量
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作者 郭荣烁 《中国奶牛》 2026年第1期53-58,共6页
本文主要以婴幼儿配方乳粉为研究对象,对测定奶粉中维生素B_(2)的标准方法GB5009.85-2016的前处理过夜酶解未规定具体的酶解时间进行测试研究。对前处理的不同酶解时间进行比对验证,并采用t检验法进行评价以确定该标准方法的最佳酶解时... 本文主要以婴幼儿配方乳粉为研究对象,对测定奶粉中维生素B_(2)的标准方法GB5009.85-2016的前处理过夜酶解未规定具体的酶解时间进行测试研究。对前处理的不同酶解时间进行比对验证,并采用t检验法进行评价以确定该标准方法的最佳酶解时间。同时在标准方法基础上进行改进,主要减少过夜酶解步骤,并采用不同样品基质对标准方法与改进方法进行比对验证,结果改进后方法与标准方法未存在显著性差异,均可对奶粉中维生素B_(2)进行有效测定。改进后方法验证结果回收率在95%~110%之间,精密度RSD小于10%,经参加测量审核,|Z|值为0.5,表明改进方法正确度高,精密度好,同时减少过夜酶解时间和混合酶的使用成本,可大大提升检测工作效率。 展开更多
关键词 婴幼儿食品 高效液相色谱法 酶解 维生素B_(2)
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婴幼儿辅食米粉和手指食物的质构特性研究
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作者 唐艳斌 王丽娟 +1 位作者 岳淑琴 黄建 《中国食物与营养》 2026年第1期27-32,共6页
目的:比较国内外几种市售婴幼儿米粉和手指食物的质构特性。方法:通过采用质构仪中TPA模式、剪切模式和流变仪,分析对比国内外几种市售婴幼儿辅食米粉和手指食物的质构特性。结果:市售的6种婴幼儿米粉的硬度、黏附性和剪切黏度分别是1.0... 目的:比较国内外几种市售婴幼儿米粉和手指食物的质构特性。方法:通过采用质构仪中TPA模式、剪切模式和流变仪,分析对比国内外几种市售婴幼儿辅食米粉和手指食物的质构特性。结果:市售的6种婴幼儿米粉的硬度、黏附性和剪切黏度分别是1.0~2.0 N、80~150 N和1700.00~7800.00 mPa·s之间,其中国产市售样品1的硬度和黏附性最强,国内样品3剪切黏度最强;国外婴幼儿手指食物(饼干和米饼)的剪切硬度分别是15~43 N和13~25 N,市售国外饼干样品5和米饼样品5剪切硬度最大。结论:市售婴幼儿米粉的TPA曲线变化基本一致,呈现糊状质构特性;质构量化分析结果表明,市售国内婴幼儿米粉的硬度、黏聚性和剪切黏度略高于国外;市售婴幼儿手指食物(饼干和米饼)的质构特征较为相似,其国外样品的剪切硬度均略高于国内样品。本研究可为我国婴幼儿辅食食品质构相关标准和法规的制定,以及指导婴幼儿合理分阶喂养提供一定的科学依据。 展开更多
关键词 婴幼儿 米粉 手指食物 质构特性 TPA特性 流变特性
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乳粉包装材料中19种有机磷酸酯检测分析及风险评价
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作者 申艳毅 彭喜洋 +1 位作者 王昕 徐尚 《食品安全质量检测学报》 2026年第2期27-33,共7页
目的 研究乳粉包装材料中19种有机磷酸酯(organophosphate esters, OPEs)的迁移特征与合规风险,并开展针对性食品安全风险评价。方法 选取12款典型乳粉包装材料[罐装、袋装及生产用聚乙烯(polyethylene, PE)袋],采用液相色谱-串联质谱法... 目的 研究乳粉包装材料中19种有机磷酸酯(organophosphate esters, OPEs)的迁移特征与合规风险,并开展针对性食品安全风险评价。方法 选取12款典型乳粉包装材料[罐装、袋装及生产用聚乙烯(polyethylene, PE)袋],采用液相色谱-串联质谱法(liquid chromatography-tandem mass spectrometry, LC-MS/MS)测定19种目标OPEs迁移量,结合危害分析与暴露水平开展针对性风险评估。结果 12款材料中7款检出OPEs,共识别出三正丁基磷酸酯(tri-n-butyl phosphate, TnBP)、磷酸三苯酯(triphenyl phosphate, TPhP)及三(2,4-二叔丁基苯基)磷酸酯[tris(2,4-di-tert-butylphenyl) phosphate, AO168O] 3种目标化合物。其中AO168O检出率最高(41.67%),最大迁移量为0.02970 mg/kg。合规性评价表明, TnBP符合GB 9685—2016《食品安全国家标准食品接触材料及制品用添加剂使用标准》限量要求, TPhP与AO168O暂无相关法规明确授权使用。风险评估结果显示,常规人群暴露风险系数为0.088%~1.650%,婴幼儿为0.789%~14.850%,整体风险处于可接受水平。结论 本研究明确了乳粉包装材料中OPEs的迁移现状与风险水平,为乳粉生产及包装企业建立OPEs全链条风险排查与溯源机制、重点管控AO168O迁移风险提供了数据参考。 展开更多
关键词 乳粉包装材料 有机磷酸酯 危害评估 婴幼儿 食品安全风险
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离子色谱法与酶比色法在婴幼儿配方乳粉胆碱检测中的对比研究
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作者 高星 赵丹 +5 位作者 张浩 屠锦娣 杨维静 梁斌 张莉 候国峰 《中国乳业》 2026年第2期74-80,共7页
[目的]对比评估离子色谱法与酶比色法在婴幼儿配方乳粉胆碱检测中的应用,选择一种更适用于企业质量控制的检测方法。[方法]通过对比标准曲线、检出限、精密度、准确度、不确定度评定及检测成本等指标,对离子色谱法和酶比色法进行分析。... [目的]对比评估离子色谱法与酶比色法在婴幼儿配方乳粉胆碱检测中的应用,选择一种更适用于企业质量控制的检测方法。[方法]通过对比标准曲线、检出限、精密度、准确度、不确定度评定及检测成本等指标,对离子色谱法和酶比色法进行分析。[结果]离子色谱法和酶比色法在各自的浓度范围内均表现出良好的线性关系,相关系数(R^(2))分别为0.9997和0.9991;离子色谱法的检出限和定量限分别为0.7 mg/100 g和2.1 mg/100 g,酶比色法的检出限和定量限分别为0.9 mg/100 g和2.7 mg/100 g;离子色谱法和酶比色法的回收率范围分别为90.7%~102.7%和86.0%~100.6%(加标量在3 mg/100 g~150 mg/100 g时);离子色谱法的精密度(0.61%~3.83%)优于酶比色法(1.30%~5.85%);离子色谱法和酶比色法的扩展不确定度分别为4.02%和4.04%。[结论]离子色谱法在灵敏度、精密度和检测成本方面均优于酶比色法,更适用于婴幼儿配方乳粉中胆碱的定性和定量分析,建议作为企业检测的首选方法。 展开更多
关键词 食品检验 胆碱 离子色谱法 酶比色法 婴幼儿配方乳粉
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Occurrence of Fungi and Mycotoxins in Some Commercial Baby Foods in North Africa 被引量:1
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作者 Kofi Edirisah Aidoo Shadlia Matug Mohamed +2 位作者 Alan Alexander Candlish Richard Frank Tester Ali Mohamed Elgerbi 《Food and Nutrition Sciences》 2011年第7期751-758,共8页
Aflatoxins, are one of over 200 known mycotoxins produced by filamentous fungi. They are toxic, carcinogenic, and mutagenic and may be present in many raw and processed food commodities including cereals and milk used... Aflatoxins, are one of over 200 known mycotoxins produced by filamentous fungi. They are toxic, carcinogenic, and mutagenic and may be present in many raw and processed food commodities including cereals and milk used as ingredients in infant food products. Consumption of these commodities may pose a potential risk to the health of infants. The mycoflora of 84 samples of baby food commercially available in North Africa was determined. The feeds were screened for mycotoxins using thin layer chromatography (TLC) and further analyses were carried for the total aflatoxins by high performance liquid chromatography (HPLC) using a Kobra cell to derivatise the aflatoxins (B1, G1, B2 and G2). Twenty-four fungal isolates were recovered from the samples consisting of 5 Aspergillus. spp, 13 Penicillum. spp, 5 Mucor. spp and an unidentified species Of these, 45.8% of the isolates were found to be mycotoxigenic however only 2.4% of the samples contained aflatoxins (19 to 70 μg·kg–1) and the remaining contained undetectable levels of the toxin. Storage at elevated relative humidity for 7 days showed a slight increase in the fungal counts but the toxin levels were unaffected. The results show the importance of periodic testing regime of ingredients used infant food formula for the presence of fungal contamination. 展开更多
关键词 Mycotoxins AFLATOXINS HPLC infant food NORTH AFRICA
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Consumer confidence and consumers’ preferences for infant formulas in China 被引量:3
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作者 LI Sai-wei ZHU Chen +1 位作者 CHEN Qi-hui LIU Yu-mei 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2019年第8期1793-1803,共11页
A series of safety incidents related to domestically-produced infant formulas(DIFs) almost destroyed Chinese consumer confidence in domestic dairy products. Understanding consumer confidence and its effect on consumpt... A series of safety incidents related to domestically-produced infant formulas(DIFs) almost destroyed Chinese consumer confidence in domestic dairy products. Understanding consumer confidence and its effect on consumption behavior is important to restore consumer confidence and enhance the competitiveness of domestic dairy industry. This article first measures Chinese consumer confidence in DIFs safety using a two-dimension scale(optimism and pessimism) and then investigates its effect on consumers’ preferences for DIFs through a choice experiment. Involving 450 consumers residing in Beijing, Tianjin and Shijiazhuang, the experiment elicited information on their preferences for DIFs with six attributes(organic raw milk, farm-to-table traceability, region of origin, quality certification, animal welfare, and price). Our analysis yields four findings. First, Chinese consumers still lack confidence in DIFs safety. Second, quality certification is the most preferred product characteristic, followed by organic raw milk and farm-to-table traceability. Third, serving as a signal of high quality, price exerts a positive impact on choices of DIFs for pessimistic consumers. Finally, consumer preferences for farm-to-table traceability and region of origin are significantly influenced by consumer confidence. 展开更多
关键词 consumer CONFIDENCE food safety infant formula choice experiment WILLINGNESS to PAY China
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Availability, Accessibility and Contribution of Infant Flours to the Diet of Children Aged 6-59 Months in Benin
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作者 Flora T. F. Laleye Nadia Fanou-Fogny +5 位作者 Yann E. Madode Flora J. Chadare Marius S. Kanhounnon Bernadette H. Boyiako Mourichide M. Achamou Djidjodo J. Hounhouigan 《Agricultural Sciences》 2023年第12期1766-1787,共22页
This study assesses the nutritional composition as well as the availability and affordability of infant flour found on the market and in the households of Benin. To do that assessment, a two-step cross-sectional surve... This study assesses the nutritional composition as well as the availability and affordability of infant flour found on the market and in the households of Benin. To do that assessment, a two-step cross-sectional survey based on food ethnography methods was used. A total of 61 marketplaces were visited in seven towns and rural districts as part of the availability and affordability survey, while 400 children (aged 6 to 59 months) were surveyed to track the uses of infant flours at the household level. The results obtained reveal that pre-manufactured infant flour is sold more in urban areas (Cotonou, Porto-Novo and Parakou) than in rural ones. The average infant flours price did not vary (p = 0.985) in any given year (regardless of abundance or lean periods) nor does it vary (p = 0.133) from one point of sale to another (drugstore or supermarkets). However, the average price is found to be expensive considering the purchasing power of the households surveyed. On the other hand, the amount of ingredients used in the production of the flour types found on the market complies with the recommendations of the Codex Alimentarius, unlike the homemade ones. Pre-manufactured infant flour is found to be outside of the economic reach of most households (92%) who rely heavily on the homemade ones to feed their children. In light of the above, public authorities should help improve geographic access and pricing affordability to quality infant flour for low-income households in urban and remote areas. Moreover, awareness should be raised among mothers relative to the importance of complementary feeding through education on good nutrition practices. 展开更多
关键词 infant Flour Complementary Feeding Nutritional Composition CHILDREN food Ethnography
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婴幼儿食品克罗诺杆菌污染情况及对小鼠血液指标的影响
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作者 杭婧 宋呈文 +2 位作者 王萍 卜文程 刘艳 《食品安全质量检测学报》 2025年第22期34-40,共7页
目的了解淮安市售共374批婴幼儿食品中克罗诺杆菌携带情况、耐药现状及对小鼠血液指标的影响。方法随机抽取淮安市7个县区的婴幼儿食品共374批,根据GB4789.40—2024《食品安全国家标准食品微生物学检验克罗诺杆菌检验》的克罗诺杆菌计数... 目的了解淮安市售共374批婴幼儿食品中克罗诺杆菌携带情况、耐药现状及对小鼠血液指标的影响。方法随机抽取淮安市7个县区的婴幼儿食品共374批,根据GB4789.40—2024《食品安全国家标准食品微生物学检验克罗诺杆菌检验》的克罗诺杆菌计数(第二法)进行检测,用全自动鉴定药敏分析仪进行药敏试验。选取小鼠为动物实验对象,观察其血液指标的变化。结果374批婴幼儿食品中克罗诺杆菌共检出10批次,检出率达2.67%,定量检测结果为9.3~>110 MPN/100 g(mL)。在21种药物敏感性试验中,克罗诺杆菌对头孢唑林(cefazolin,CEFA)、氯霉素(chloramphenicol,CHL)敏感率分别为80.00%、90.00%,其余敏感率为100.00%。克罗诺杆菌感染对小鼠的血液指标有显著的性别差异,在感染后,雄性小鼠表现出白细胞数量明显增加的特征,而雌性小鼠则呈现白细胞减少的趋势。此外,两性对感染剂量的敏感性也有所不同:雌性小鼠对中等剂量感染的抵抗力较弱,而雄性小鼠则对低剂量感染表现出更为强烈的免疫激活。结论淮安市市售婴幼儿食品存在克罗诺杆菌污染,对一代头孢抗生素敏感性低于三四代头孢,CHL不应作为临床首选用药。本研究从动物层面反馈出阪崎肠杆菌的危害性,对小鼠血常规指标的影响提示该菌感染后可能存在性别特异性免疫,需在人类防控中关注性别差异,也有助于制定应对策略,减少病菌传播。 展开更多
关键词 婴幼儿食品 克罗诺杆菌 药物敏感性 血液指标
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微波消解-ICP-OES法定量分析婴幼儿辅助食品中的锌
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作者 李玉红 孟小华 +1 位作者 马佳 魏永生 《当代化工》 2025年第6期1509-1512,共4页
以质量分数68%HNO_(3)+30%H_(2)O_(2)混合溶液为消解溶剂,采用微波消解-全谱直读电感耦合等离子体发射光谱(ICP-OES)定量测定婴幼儿助食品中的锌质量分数。结果表明:ICP-OES定量分析线性范围可达2个数量级以上宽;锌在0.01~50μg·mL... 以质量分数68%HNO_(3)+30%H_(2)O_(2)混合溶液为消解溶剂,采用微波消解-全谱直读电感耦合等离子体发射光谱(ICP-OES)定量测定婴幼儿助食品中的锌质量分数。结果表明:ICP-OES定量分析线性范围可达2个数量级以上宽;锌在0.01~50μg·mL^(-1)呈现良好的线性关系(R^(2)=0.9998),检出限、定量限分别为0.0167、0.0556 mg·kg^(-1)。样品测定相对标准偏差为1.83%~3.62%,加标回收率为88.9%~105.7%。对市售4种婴幼儿辅助食品的锌质量分数进行了检测,检测值与标签值均接近。 展开更多
关键词 微波消解 电感耦合等离子体发射光谱法 婴幼儿辅助食品
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含乳特殊医学用途婴儿配方食品中碘成分分析标准物质的研制与评估
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作者 李清清 刘珺瑶 严静 《乳业科学与技术》 2025年第3期49-54,共6页
针对特殊医学用途婴儿配方食品中碘含量测定需求,研制一种碘成分分析基质标准物质。以特殊医学用途婴儿配方乳粉(乳蛋白部分水解配方)为基质,采用包埋碘化钾为添加物,经乳清蛋白粉初级稀释后,采用干法逐级放大混合稀释制备技术,建立了... 针对特殊医学用途婴儿配方食品中碘含量测定需求,研制一种碘成分分析基质标准物质。以特殊医学用途婴儿配方乳粉(乳蛋白部分水解配方)为基质,采用包埋碘化钾为添加物,经乳清蛋白粉初级稀释后,采用干法逐级放大混合稀释制备技术,建立了稳定的标准物质制备体系。采用碱液提取-电感耦合等离子体-质谱法对标准物质的均匀性和稳定性进行检测,并采用多实验室定值的方法对标准物质的特性值赋值。结果表明,该标准物质具有良好的均匀性和稳定性,碘含量特性值为(67.8±4.6)μg/100 g(k=2)。该标准物质可用于特殊医学用途婴儿配方食品中碘含量测定方法的验证、实验室质量控制及仪器校准,为特殊医学用途婴儿配方食品中碘的准确测定提供可靠的技术支撑。 展开更多
关键词 标准物质 特殊医学用途婴儿配方食品 均匀性 稳定性
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婴幼儿辅食中55种传统和新型全氟和多氟烷基化合物的广谱检测方法:基于液相色谱-高分辨质谱 被引量:1
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作者 梁梓薇 冯超 +3 位作者 尤嘉雯 钱紫欣 乐孙阳 卢大胜 《环境与职业医学》 北大核心 2025年第2期211-217,223,共8页
[背景]全氟和多氟烷基化合物(PFASs)是一类对机体有潜在健康危害的持久性有机污染物。婴幼儿由于排毒及免疫系统尚未完善,对食品安全具有更高的要求。因此,建立婴幼儿辅食中PFASs及其新型替代物的广谱检测和鉴定方法具有重要意义。[目的... [背景]全氟和多氟烷基化合物(PFASs)是一类对机体有潜在健康危害的持久性有机污染物。婴幼儿由于排毒及免疫系统尚未完善,对食品安全具有更高的要求。因此,建立婴幼儿辅食中PFASs及其新型替代物的广谱检测和鉴定方法具有重要意义。[目的]建立基于液相色谱-高分辨质谱技术检测植物和动物源性婴幼儿辅食果泥中55种PFASs的分析方法。[方法]研究使用Oasis WAX(200 mg,6 CC)固相萃取柱对样品进行富集净化,使用0%、1%、1.5%、2%甲酸水溶液调整乙腈提取液pH,比较上样pH对目标化合物回收率的影响以及比较淋洗过程中是否采用2 mL甲醇淋洗对目标物回收率的影响,选取最适预处理条件;比较Agilent Poroshell 120 EC-C_(18)、Thermo InfinityLab Poroshell 120 Aq-C_(18)、Acquity Waters BEH-C_(18)三种色谱柱以及流动相的改变对目标物的保留时间、峰型和响应的影响;从选择性、线性范围、检出限和精密度等方面对所建立方法进行验证;将所建立的方法应用于49件婴幼儿辅食果泥样品。[结果]经1.5%甲酸水调整上样pH,并在淋洗步骤中用2 mL甲醇溶液淋洗进行净化,可以得到较好的回收率。目标物用Agilent Poroshell 120 EC-C_(18)色谱柱,在含5 mmol·L^(-1)甲酸铵的甲醇水(甲醇/水:2/98,体积比)为作为流动相A,甲醇为流动相B的流动相体系下进行梯度洗脱,15 min内实现良好分离并能获得最好的色谱峰型。55种目标物在标准曲线范围内线性关系良好,相关系数R2均大于0.99。方法检出限为0.02~0.05μg·L^(-1)。在植物源性和动物源性果泥中,基质加标回收率范围分别为60%~112%和57%~119%,相对标准偏差(RSD)≤30%。在49件婴幼儿辅食果泥样品中共检测出9种传统的PFASs以及5种新型PFASs。[结论]本方法实现了55种传统和新型PFASs的广谱检测,具有覆盖范围广、准确度好、灵敏度高等优点,为分析食品基质中传统和新型PFASs的污染特征提供了技术支持。 展开更多
关键词 全氟和多氟烷基化合物 婴幼儿 辅食 高分辨质谱 固相萃取
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