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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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Contribution of Plant Breeding Efforts to the Safety of the Cereal-based Food Chain
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作者 Zoltán Bedo Mariann Rakszegi +1 位作者 László Láng Peter Shewry 《食品科学》 EI CAS CSCD 北大核心 2006年第11期618-620,共3页
关键词 In Contribution of Plant Breeding Efforts to the Safety of the cereal-based food Chain
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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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Nutritional Evaluation of Complementary Food Formulations from Maize, Soybean and Peanut Fortified with <i>Moringa oleifera</i>Leaf Powder 被引量:5
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作者 Dooshima Shiriki Michael A. Igyor Dick I. Gernah 《Food and Nutrition Sciences》 2015年第5期494-500,共7页
Nutritional evaluation of complementary food formulations from maize, soybean and peanut fortified with Moringa oleifera leaf powder was carried out. Maize, soybean and peanut were blended in a ratio of 60:30:10 to pr... Nutritional evaluation of complementary food formulations from maize, soybean and peanut fortified with Moringa oleifera leaf powder was carried out. Maize, soybean and peanut were blended in a ratio of 60:30:10 to produce a complementary food, which was then fortified. While the unfortified food product (sample A) served as control, the other three formulations were fortified with 5%, 10% and 15% Moringa leaf powder to give three samples (B, C and D respectively) of fortified food. Nutritional composition determination and feeding trials were then carried out, using two weeks old male albino rats to determine the performance of the food formulations. While the crude protein, crude fibre, and ash contents of the diets increased significantly (p with fortification, with values ranging from 16.04% to 17.59%, 2.25% to 4.42% and 1.40% to 2.50% respectively, crude fat and carbohydrate decreased significantly (p < 0.05), with concomitant decrease in energy, with values ranging from 23.48% to 20.80%, 49.32% to 47.63% and 472.76% to 448.08 kcal/100g respectively in samples A to D. PER values significantly (p < 0.05) improved up to 10% substitution, from 1.77 in unfortified (sample A) to 1.90 in 10% fortified (sample C), but declined at 15% substitution (sample D) to 1.69. Similarly, NPR values increased from 0.71 to 0.76 and 0.68. However, all the PER values including that of Nestle Cerelac (2.04) were lower than, though within the same range, with the value of 2.10 recommended by the Protein Advisory Group (PAG) for complementary foods. Sample C (10% Moringa flour blend) gave the best performance after rat feeding trials. 展开更多
关键词 FORTIFICATION complementary food Nutritional Evaluation Substitution Moringa LEAF POWDER food Formulations
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Assessment of Chemical, Rheological and Sensory Properties of Fermented Maize-Cardaba Banana Complementary Food
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作者 Helen Nwakego Ayo-Omogie Regina Ogunsakin 《Food and Nutrition Sciences》 2013年第8期844-850,共7页
Traditional processing of fermented maize (“ogi”), a popular weaning food in the West African sub-region, results in considerable nutrient losses. Several attempts at improving its nutritional and sensory properties... Traditional processing of fermented maize (“ogi”), a popular weaning food in the West African sub-region, results in considerable nutrient losses. Several attempts at improving its nutritional and sensory properties have focused on fortification with plant and animal products. Banana flour, rich in micronutrients and vitamins, could increase the micronutrient and vitamin contents of ogi. This study aimed at evaluating the physicochemical properties and sensory attributes of ogi as influenced by banana flour supplementation. Fermented maize flour was substituted with ripe Cardaba banana flour at levels of 10% -?50% and the flour mixes subjected to chemical, rheological and sensory evaluation. Crude protein decreased from 1.59% to 1.43% as banana flour substitution increased, while ash, total sugar (3.64% to 4.97%), carbohydrate and acidity increased. However, diastatic activity, crude fibre and fat were not significantly (p ≤ 0.05) affected. Results of functional properties revealed the following: 86.49 -?83.63 g/ml, 0.41 -?0.44 g/cm3, 6.44 -?7.46 g/ml, 3.30 -?4.50 g/ml, and 10.40 - 10.80 g/ml for water absorption capacity, bulk density, gel consistency, syneresis and swelling capacity, respectively. Significant (p ≤ 0.05) variations were observed in the pasting viscosities of the flours. The 50:50 maize-banana flour mix was the most preferred in terms of aroma, taste, colour and general acceptability. The addition of Cardaba banana flour to ogi may enhance its micronutrient content as evidenced by increased ash content, sensory, functional and pasting properties, thereby making it a potential substitute for complementary feeding of infants. 展开更多
关键词 Cardaba BANANA complementary food FERMENTED Maize MICRONUTRIENTS Ogi RHEOLOGICAL SENSORY Substitution
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Retention of <i>β</i>-Carotene in Cream-Fleshed Sweetpotato-Based Complementary Food Stored in Different Containers under Simulated Tropical Temperature and Humidity
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作者 Francis Kweku Amagloh Louise Brough +3 位作者 Janet L. Weber Anthony N. Mutukumira Allan Hardacre Jane Coad 《Food and Nutrition Sciences》 2013年第9期23-28,共6页
The stability of β-carotene in cream-fleshed sweetpotato-based complementary food stored in three different containers under simulated tropical temperature of 32°C and 85% relative humidity in an environmental c... The stability of β-carotene in cream-fleshed sweetpotato-based complementary food stored in three different containers under simulated tropical temperature of 32°C and 85% relative humidity in an environmental chamber for 24 weeks was investigated. The formulation stored in a metallised polyester film in a refrigerator (approximately 3.0°C and 95% relative humidity) retained about 81% of β-carotene at 24 weeks, with no significant change in the moisture content. The formulation stored in either a metallised polyester film or a translucent polypropylene container placed in the environmental chamber retained approximately half of the β-carotene at 24 weeks, with a slight increase in moisture content. However, the formulation held in a transparent low-density polyethylene bag had the lowest β-carotene retention (37%) and the highest moisture content at week 24. Within the limits of this study, it has been demonstrated that β-carotene in cream-fleshed sweetpotato-based complementary food was well retained when moisture uptake was minimised. 展开更多
关键词 Β-CAROTENE complementary food Storage SWEETPOTATO
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Sensory Evaluation and Proximate Composition of Homemade Complementary Food (HCF), Made Using Milk Combinations of Plant and Animal Origin
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作者 Nkereuwem Sunday Etukudoh Essiet Akanimo Gordon +3 位作者 Ejinaka Reginald Obiora Oluwo Fredrick Obeta M. Uchejeso Ocheola Oki Ene Joyce 《Food and Nutrition Sciences》 2021年第4期343-351,共9页
Sensory analysis tools are the classic means for guaranteeing sensory quality, assessing acceptability, and recognizing faults in food products. Powerful sensory analysis techniques, w<span style="font-family:... Sensory analysis tools are the classic means for guaranteeing sensory quality, assessing acceptability, and recognizing faults in food products. Powerful sensory analysis techniques, w<span style="font-family:Verdana;">ere</span><span style="font-family:;" "=""><span style="font-family:Verdana;"> applied to evaluate Homemade Complementary Food (HCF) using milk combination of plant and animal origin. An experimental but descriptive method of research was used with Mubi as the study area.</span><b> </b><span style="font-family:Verdana;">Milk from animal,</span></span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">(cow and goat) as well as milk from plant origin (soya beans milk,) was used. Milk from animal source was pasteurized using Vat pasteurization process (FDA, 2015) while quality soya beans milk was used to prepare milk of plant origin. Blended banana was also used as part of the home made complementary food alongside milk on a 50:50 ratio. A 15 member trained panel made up of mothers with children under the age of 5</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">years and currently breast feeding were the respondents, a sensory evaluation sheet based on the 9-point hedonic scale was used for scoring. Proximate analysis of sample w</span><span style="font-family:Verdana;">as</span><span style="font-family:Verdana;"> done using standard methods, AOAC</span><span style="font-family:;" "=""> </span><span style="font-family:;" "=""><span style="font-family:Verdana;">(2000). Data was analyzed statistically using means and standard deviation.</span><b> </b><span style="font-family:Verdana;">Results showed that sample B4 (a combination of cow, goat, and soya beans milk + blended banana slurry) had the best sensory attributes of appearance (8.00 ±1.32), taste (7.44 ± 1.01) and overall acceptability (8.00 ± 1.22),</span></span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">while sample B5 (goat milk + blended banana slurry) had the best sensory attributes of colour (8.00 ± 0.71) and aroma (7.78 ± 0.83). The proximate composition showed that the home made complementary food contained protein above (10.97 ± 0.00) from complementary food, this is far above the recommended 6.2</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">g/day, required for children 23 months and below assuming the child has an average breast milk intake daily, and fat (2.76 ± 0.00) from complementary foods, was within the recommendation range, required for children age between 9</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">-</span><span style="font-family:;" "=""> </span><span style="font-family:Verdana;">11 months, also assuming the child is on average breast milk intake daily. These results can be of significant benefits in research, and in food processing industries, globally. Further research in other regions is needed to compare the obtained results in terms of its variance.</span> 展开更多
关键词 SENSORY complementary food MILK ACCEPTABILITY
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Complementary Food Situation in Sierra Leone: Nutritional Problems and Possible Strategies—A Review
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作者 Philip John Kanu 《Food and Nutrition Sciences》 CAS 2024年第2期113-128,共16页
Low nutrient density and bulkiness of complementary foods, early introduction of solid foods, and unhygienic practices during weaning stage of a child predispose infants to malnutrition, growth retardation, infection ... Low nutrient density and bulkiness of complementary foods, early introduction of solid foods, and unhygienic practices during weaning stage of a child predispose infants to malnutrition, growth retardation, infection and high mortality. In most West African countries, especially in Sierra Leone, the use of a variety of home-made complementary foods prepared from locally grown foodstuffs during the weaning process is popular, with products traditionally known as pap (mesh rice water) fofo from cassava, ogi, gari, akamu and couscous. Sierra Leone is one of the countries in West Africa that has been reported to have a challenging situation with regards to complementary foods, and little effort has so far been done to improve the situation. Despite these challenges, very little work has been directed towards the development of complementary foods using local foodstuffs as practiced in some other African countries. This situation has serious impact on the lives of infants in Sierra Leone, thus increasing the rate of mortality in the country. Complementary food situation in Sierra Leone was reviewed in terms of the past and present practices as well as the types of complementary foods used in Sierra Leone. Thus, the objective of this review was to discuss the complementary food situation in Sierra Leone: Nutritional problems and possible strategies. Formulation of high nutritive value home-made complementary foods in the country was recommended using traditional food processing techniques such as fermentation and germination, since these methods are simple, and could easily be employed at household and community levels without the use of sophisticated machinery. Nonetheless, it was recently reported that a product from the orange-flesh sweet potato could address the issue of complementary food in the country as it is easy to prepare, and the products are easily available in the rural area and even urban settings. Other recommendations made include: community nutrition education, the development of weaning recipe book, reduction in the workload of the suckling mother, promotion of breastfeeding and increased maternity leave period, which were suggested to be the most immediate possible strategies for the problems highlighted. 展开更多
关键词 complementary food PAP MALNUTRITION Growth Retardation
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Nutrient Composition of Cereal (Maize), Legume (Soybean) and Fruit (Banana) as a Complementary Food for Older Infants and Their Sensory Assessment
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作者 Chike Timothy Ezeokeke Anita Blessing Onuoha 《Journal of Food Science and Engineering》 2016年第3期139-148,共10页
Four complementary foods were prepared from local foodstuffs which are maize (Zea mays), soyabean (Glycine max) and banana (Musa acuminate colla). Four complementary samples were produced from the proportion of ... Four complementary foods were prepared from local foodstuffs which are maize (Zea mays), soyabean (Glycine max) and banana (Musa acuminate colla). Four complementary samples were produced from the proportion of maize/soyabean/banana composite flours as 60%: 30%: 10% (B), 60%: 25%: 15% (C), 60%: 20%: 20% (D), 50%: 30%: 20% (E) and Nestle Cerelac was the control sample (A). The formulated diets were subjected to nutritional analysis-along with a commonly used proprietary infant cereal (Nestle Cerelac) as control. Standard chemical methods were used to determine the proximate nutrient composition, some micronutrients and anti-nutritional factors. The samples produced have increased nutrients of fibre that enhances digestibility (2.07%-3.11%), protein and ash contents. The supplementation of up to 20% soybean flour and banana flour recorded the best results in terms of proximate and mineral compositions and compared favourably with the control sample, in terms of sensory evaluation using hedonic method, sample A was most accepted but did not differ significantly from sample D. Therefore, nutritious and acceptable complementary food can be produced from fermented maize, soybean and banana flours. Results of molar ratios of some minerals and anti-nutritional factors in the compounded diets suggest that the anti-nutrients will not pose any serious problem in the usage of the complementary diets. The cost of producing the formulated diets is about N50-N100 (50 cents) per gram cheaper than cerelac. The study has therefore, revealed that with proper selection of local foodstuff, it is possible to prepare nutritious complementary diets that would be acceptable, readily available, affordable and nutritionally adequate. 展开更多
关键词 complementary food blends maize and soybean.
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婴幼儿口腔发育特点及辅食质构分阶策略分析
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作者 陈勇 朱敬业 +4 位作者 韩军花 戴志勇 陈建设 李梦怡 任国谱 《食品科学》 北大核心 2026年第1期317-326,共10页
辅食作为婴幼儿早期感官体验的重要媒介,其质构特性与婴幼儿咀嚼吞咽能力发育、食物接受度及长期饮食习惯密切相关。尽管当前市场提供了种类繁多的婴幼儿辅食产品,但针对辅食的质构特性,目前尚缺乏统一的分阶标准体系,这限制了对不同辅... 辅食作为婴幼儿早期感官体验的重要媒介,其质构特性与婴幼儿咀嚼吞咽能力发育、食物接受度及长期饮食习惯密切相关。尽管当前市场提供了种类繁多的婴幼儿辅食产品,但针对辅食的质构特性,目前尚缺乏统一的分阶标准体系,这限制了对不同辅食产品在质构适应性及吞咽安全性方面的科学评估,难以充分满足婴幼儿在不同生长发育阶段对食物质构的特定需求。国际吞咽障碍食物标准行动委员会(International Dysphagia Diet Standardization Initiative,IDDSI)通过统一的8级质构分级框架,结合硬度、黏度、颗粒度等指标,对不同的食品质构进行标准化分类,为婴幼儿辅食的科学分阶提供可能。鉴于此,本文通过综述不同月龄婴幼儿口腔发育与生理特征,总结婴幼儿辅食研究现状,并结合IDDSI质构框架,以期为婴幼儿辅食产品质构设计与口腔发育适配性提升提供科学依据,也为未来辅食产品的质构标准化分阶提供参考。 展开更多
关键词 食品口腔加工 婴幼儿辅食 口腔生理特征 饮食行为 分阶喂养 吞咽安全
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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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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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粮食作物种植收入保险对完全成本保险的影响效应研究 被引量:2
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作者 刘汉成 吴传清 《农村经济》 北大核心 2025年第4期51-60,共10页
当前我国粮食作物保险正处于由直接物化成本保险向完全成本保险与种植收入保险转变的关键时期,从长远看,种植收入保险终将成为粮食作物保险的主流。因此,现阶段研究粮食作物种植收入保险对完全成本保险的影响效应意义重大。以三大主粮为... 当前我国粮食作物保险正处于由直接物化成本保险向完全成本保险与种植收入保险转变的关键时期,从长远看,种植收入保险终将成为粮食作物保险的主流。因此,现阶段研究粮食作物种植收入保险对完全成本保险的影响效应意义重大。以三大主粮为例,基于2018-2022年江苏、湖北、辽宁三省的产粮大县入户调查数据,探究粮食作物种植收入保险对完全成本保险的影响效应。研究发现:首先,从总体上看,种植收入保险对完全成本保险影响以互补效应为主;其次,因品种、规模及区域不同,种植收入保险对完全成本保险的影响效应存在明显差异;最后,进一步分析表明,种植收入保险推进程度是决定种植收入保险对完全成本保险影响效应的重要因素,推进程度低的互补效应占主导,推进程度高的替代效应占主导。基于研究结论,未来须进一步优化粮食作物保险顶层设计,细化种植收入保险推进策略,强化保险扶持与其他财政支农工具有效衔接与协同配合,推动粮食作物保险高质量发展。 展开更多
关键词 粮食作物 种植收入保险 完全成本保险 替代效应 互补效应
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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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武汉市青山区3岁以下婴幼儿母乳喂养和食物消费现状 被引量:1
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作者 孙静钗 赵惠 +3 位作者 周小琦 吴晓旻 马红飞 石梦蝶 《医学动物防制》 2025年第5期467-470,475,共5页
目的了解3岁以下婴幼儿母乳喂养现状和各类食物消费情况,为制定全市婴幼儿喂养干预及营养指导策略提供参考。方法采用分层抽样的方法,2022年7月—2023年3月从武汉市青山区选择236名3岁以下婴幼儿进行问卷调查,调查母乳喂养状况、辅食添... 目的了解3岁以下婴幼儿母乳喂养现状和各类食物消费情况,为制定全市婴幼儿喂养干预及营养指导策略提供参考。方法采用分层抽样的方法,2022年7月—2023年3月从武汉市青山区选择236名3岁以下婴幼儿进行问卷调查,调查母乳喂养状况、辅食添加情况、各类食品消费情况等,并通过用回归分析探究母乳喂养的营养影响因素、采用χ^(2)检验比较不同月龄婴幼儿各类食物食用情况。结果4个月内母乳喂养比例(84.32%)明显高于6个月母乳喂养比例(59.32%);6~<12月龄为断乳高峰期,1岁以内婴幼儿断母乳者占85.78%。被调查者学历水平、家庭人均年收入与婴幼儿是否吃过母乳(F=2.242,P=0.092)、是否喂过初乳(F=1.897,P=0.153)无明显线性关系;6月龄以上婴幼儿对蔬菜及其制品(χ^(2)=5.234,P=0.155)、水果及其制品(χ^(2)=3.849,P=0.278)、营养补充剂/辅食营养包(χ^(2)=7.496,P=0.058)的消费情况差异无统计学意义,对乳类、饮料、坚果、谷类及其制品、豆类及其制品、婴幼儿辅食食品、肉类、蛋类、水产品及其制品的消费情况差异有统计学意义(χ^(2)=57.141、73.627、39.190、59.553、49.348、72.077、25.240、34.730、77.179,P<0.001)。结论青山区婴幼儿喂养状况整体较好,却存在纯母乳喂养有待提高、辅食结构不合理等问题。 展开更多
关键词 婴幼儿 母乳喂养 辅食添加 食物消费 现状
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基于辅食喂养核心信息的婴幼儿辅食仿真模型设计与评价
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作者 孟娜 龚诗苗 +2 位作者 黄艺文 吴琼 张延峰 《卫生研究》 北大核心 2025年第4期621-625,共5页
目的设计并评价涵盖辅食喂养核心信息的婴幼儿辅食仿真模型。方法依据国内外婴幼儿辅食喂养指南及最新研究成果,结合婴幼儿口腔发育特点和辅食物性,设计并制作婴幼儿辅食仿真模型。采用方便抽样法,选取北京市社区卫生服务中心中具有婴... 目的设计并评价涵盖辅食喂养核心信息的婴幼儿辅食仿真模型。方法依据国内外婴幼儿辅食喂养指南及最新研究成果,结合婴幼儿口腔发育特点和辅食物性,设计并制作婴幼儿辅食仿真模型。采用方便抽样法,选取北京市社区卫生服务中心中具有婴幼儿喂养指导经验的350名儿童保健工作者,通过幻灯和视频讲解辅食模型的设计和使用,并展示真实辅食模型,然后发放电子问卷收集他们对辅食模型的评价。结果在有用性、可接受性、互动性、使用意愿、总体评价等方面,约90%的调查对象认为好。在329名愿意使用辅食模型的调查对象中,近90%认为其能提升培训效果和喂养指导效率。约80%指出辅食模型能增强家长喂养信心与技能,提升指导互动性、趣味性,并直观展示辅食质地与种类。结论基于辅食喂养核心信息设计和制作的婴幼儿辅食仿真模型得到社区儿童保健工作者良好的评价,可作为婴幼儿喂养指导与教学的高效辅助工具。 展开更多
关键词 婴幼儿 辅食仿真模型 辅食喂养
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12~18月龄幼儿辅食添加和胃肠道健康的关联研究
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作者 李文佳 朱海燕 +4 位作者 梁思雨 刘兰 王瑞琛 訾天琪 李洁 《中国健康教育》 北大核心 2025年第1期69-74,共6页
目的了解12~18月龄幼儿辅食添加和胃肠道健康现状及两者之间的关联,为指导幼儿辅食添加和改善幼儿胃肠道健康工作提供理论依据。方法于2022年3—12月期间,在北京市随机招募260名12~18月龄幼儿及其照护者进行问卷调查。采用χ2检验和二元... 目的了解12~18月龄幼儿辅食添加和胃肠道健康现状及两者之间的关联,为指导幼儿辅食添加和改善幼儿胃肠道健康工作提供理论依据。方法于2022年3—12月期间,在北京市随机招募260名12~18月龄幼儿及其照护者进行问卷调查。采用χ2检验和二元Logistic回归分析幼儿辅食添加和胃肠道健康之间的关联。结果260名幼儿中,有179(68.9%)名幼儿为适龄辅食添加。辅食添加种类中,谷类根茎类和富含维生素A的蔬果添加人数最多,分别为99.6%(259/260)、98.8%(257/260),豆类和坚果占比最低24.6%(64/260)。胃肠道问题中发生人数最高的是便秘33.8%(88/260)。二元Logistic回归结果显示:辅食中添加奶制品幼儿在过去1周内发生便秘、胀气和腹胀的概率比辅食中不添加奶制品幼儿更高,OR值分别为0.519(95%CI:0.286~0.941)、0.480(95%CI:0.250~0.922)和0.349(95%CI:0.156~0.780);辅食中添加其他水果和蔬菜幼儿在过去1周内发生腹泻的概率比辅食中不添加其他水果和蔬菜幼儿更高,OR值为2.202(95%CI:0.813~5.961)。结论辅食添加过早和过晚的问题仍然存在,胃肠道问题在幼儿中的发生率约占1/3,辅食添加和胃肠道问题发生之间存在一定的关联。 展开更多
关键词 幼儿 辅食 胃肠道
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婴幼儿辅食加工过程中的营养安全与潜在污染物控制研究
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作者 郜铜飞 何扩 张秀媛 《食品安全导刊》 2025年第34期10-12,共3页
婴幼儿辅食是婴幼儿喂养从纯母乳过渡到成人食品阶段的关键组成部分,其营养安全及污染物控制对婴幼儿健康成长具有直接影响。目前,辅食加工造成的营养素流失问题和辅食加工过程中的污染物问题成为了行业及消费者关注的热点。文章综述婴... 婴幼儿辅食是婴幼儿喂养从纯母乳过渡到成人食品阶段的关键组成部分,其营养安全及污染物控制对婴幼儿健康成长具有直接影响。目前,辅食加工造成的营养素流失问题和辅食加工过程中的污染物问题成为了行业及消费者关注的热点。文章综述婴幼儿辅食在生产全过程中影响婴幼儿辅食食品安全、营养安全的关键因素,及其潜在的污染物来源,并开展危险性评估,提出辅食加工过程中食品安全及营养安全的系统控制措施,以期为提高婴幼儿辅食质量安全提供技术参考。 展开更多
关键词 婴幼儿辅食 加工工艺 营养安全 潜在污染物 质量控制
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多元化健康教育模式在婴儿辅食添加中的应用研究
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作者 曾柳清 梁小敏 朱建英 《中国社区医师》 2025年第27期139-141,共3页
目的:观察多元化健康教育模式在婴儿辅食添加指导中的应用效果。方法:选取2023年7月—2024年3月于东莞市妇幼保健院接受儿童保健的婴幼儿200例作为观察对象,采用随机数字表法分为对照组与试验组,各100例。对照组开展常规婴儿辅食添加指... 目的:观察多元化健康教育模式在婴儿辅食添加指导中的应用效果。方法:选取2023年7月—2024年3月于东莞市妇幼保健院接受儿童保健的婴幼儿200例作为观察对象,采用随机数字表法分为对照组与试验组,各100例。对照组开展常规婴儿辅食添加指导,试验组开展多元化健康教育模式。对比干预效果。结果:添加辅食第1、3、6个月时,两组身高、体质量增加(P<0.05),且试验组婴儿生长发育情况较对照组更优(P<0.001)。试验组肥胖、营养不良、贫血发生率低于对照组(P<0.05)。干预后,两组家属对辅食添加时间、辅食添加方法、辅食添加种类、辅食喂食方法的掌握度评分升高(P<0.05),且试验组高于对照组(P<0.001)。结论:多元化健康教育模式在婴儿辅食添加指导中的应用效果较好,有助于提高家属辅食喂养知识掌握程度,改善婴幼儿营养状况,促进其正常生长发育。 展开更多
关键词 多元化健康教育 婴儿 辅食添加 营养状况 生长发育
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新生儿辅食中潜在过敏原的食品安全标准研究 被引量:1
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作者 万涟红 《食品安全导刊》 2025年第10期183-186,共4页
新生儿辅食中的过敏原风险是食品安全领域的核心挑战。本研究系统分析了新生儿辅食中常见过敏原的分布特征及其健康影响机制,并提出了基于酶联免疫吸附试验(Enzyme Linked Immunosorbent Assay,ELISA)检测技术与区块链智能溯源的技术保... 新生儿辅食中的过敏原风险是食品安全领域的核心挑战。本研究系统分析了新生儿辅食中常见过敏原的分布特征及其健康影响机制,并提出了基于酶联免疫吸附试验(Enzyme Linked Immunosorbent Assay,ELISA)检测技术与区块链智能溯源的技术保障体系。两者的协同有利于形成“检测-追溯-优化”闭环,可解决传统管理中的检测滞后、追溯低效与跨境合规难题。本研究可为完善婴幼儿辅食过敏原标准体系提供技术框架与实施路径。 展开更多
关键词 新生儿辅食 过敏原 酶联免疫吸附试验 区块链溯源 食品安全
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