共查询到19条相似文献,搜索用时 78 毫秒
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母乳(人乳)是人类母亲用于哺喂婴儿的乳腺分泌液,它既是婴儿出生后能量和营养的来源,更是母体为新生婴儿提供的全方面延伸保护.母乳作为一种自然演化的产物,其成分复杂,构成物质种类繁多,包括支持婴儿物质代谢的营养物质和帮助婴儿功能发育的生物活性物质.这些母乳成分在含量、亚组分构成及化学和生物学状态等方面,能完美地吻合婴儿解剖... 相似文献
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近年来菊粉在肠道健康中的应用受到研究学者的广泛关注。菊粉作为优质益生元,能有效改善肠道微生态,提升肠道的生理功能、促进肠道对矿物质等营养物质的吸收和将有害残渣的排出。菊粉能对肠道的保健和慢性疾病的预防具有重要作用。本文综述了菊粉的性质、来源、营养价值及现状。从人体三大抵御疫病屏障和肠道微生态环境的角度阐述了肠道健康的重要性,主要探讨了菊粉如何增强胃肠功能、在肠道健康中的应用, 并对菊粉的未来发展前景进行了展望。 相似文献
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肠道微生物蛋白质的发酵与肠道健康的关系 总被引:1,自引:0,他引:1
人体内蛋白质发酵主要发生于结肠末端,会产生一些不利于健康的代谢产物如氨类、胺类、酚类化合物和硫化物等。一些重要的肠道疾病如大肠癌、溃疡性结肠炎的发生都集中于结肠末端,这与在该部位的蛋白质的高度发酵有关。流行病学研究表明,高肉类食物通常与大肠癌的发生呈正相关性,这是因为高肉食的摄入不仅增加了蛋白质在大肠中的含量,而且还增加了脂肪、荷尔蒙和杂环胺的摄入,这些物质对大肠癌的发生也起到促进的作用。然而,肠道健康和蛋白质的发酵之间的潜在关系还没有得到充分的研究,本文就蛋白质在肠道发酵所产生的一些潜在危害化合物及其在体内代谢循环的研究进行综述。 相似文献
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该文以鲜榨豆薯汁为植物乳杆菌FZU122 发酵基质,探究发酵时间(0、24、48、72 h)对豆薯汁基本理化指标、游离单糖、游离氨基酸、有机酸和挥发性成分的影响。结果表明:pH 值随发酵时间的延长显著下降。发酵48 h 后,豆薯汁中总还原糖浓度显著变化,葡萄糖和果糖为主要的单糖成分。总游离氨基酸的含量在发酵后出现波动,其中苦味氨基酸含量下降,甜味氨基酸含量上升。气相色谱-质谱联用技术检测发现,醇类物质为发酵豆薯汁的主要香气组分,原有的醛类物质发酵后未被检出。发酵后总有机酸含量升高,苹果酸和乳酸为豆薯中两种主要酸类物质。 相似文献
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苹果酸-乳酸发酵是优质红葡萄酒酿造中必不可少的工艺之一,经过苹果酸-乳酸发酵,不但能有效降低葡萄酒的酸度,而且活性成分的含量或种类也会增加,从而提高葡萄酒对人体健康的正面影响。本文综述了经苹果酸-乳酸发酵的葡萄酒中氨基酸、益生菌、有机酸、多酚类物质、高级醇和酯类的变化,并简要介绍其抗癌、抗氧化、抗心血管疾病及抗菌消炎的功效,另外,还发现了一些活性成分如维生素、矿物质等在苹果酸-乳酸发酵前后的变化情况罕有报道,可作为进一步的研究方向。本文以期为研究利用中国野生葡萄种质资源、酿造优质中国野生葡萄酒提供参考。 相似文献
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研究不同益生元对植物乳杆菌在不同培养条件下的促增殖作用。选用5株生理特性不同的植物乳杆菌为研究对象,利用Bioscreen检测它们的生长情况,进一步通过Baranyi模型拟合曲线,从而得到最大比生长速率和迟滞期。结果表明:在MRS培养基下,添加5种不同的益生元对植物乳杆菌无明显促增殖作用;在以益生元替代葡萄糖作为碳源的MRS培养基中,植物乳杆菌对不同的益生元具有选择偏好性,且具有菌株特异性;在模拟肠道体系下,与对照相比,益生元能明显促进所有植物乳杆菌的增长,其中低聚果糖与低聚半乳糖最优。实验结论显示,模拟肠道体系可以作为最精确和快速的益生元筛选体系。 相似文献
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Effects of Fermented Edible Seeds and Their Products on Human Health: Bioactive Components and Bioactivities 下载免费PDF全文
Ren‐You Gan Hua‐Bin Li Anil Gunaratne Zhong‐Quan Sui Harold Corke 《Comprehensive Reviews in Food Science and Food Safety》2017,16(3):489-531
There is a long history of using fermentation in food production. Edible seeds, such as certain beans and cereal grains, are important in the human diet and provide many health benefits. Various microbes, such as lactic acid bacteria, molds, and yeasts, considered as generally recognized as safe (GRAS) microbes, are commonly used to ferment edible seeds and their products. Fermentation can change bioactive components and produce new bioactivities. In order to highlight the importance of fermentation on bioactive components and bioactivities in edible seeds, this review, therefore, summarizes recent relevant studies and discusses fermentation procedures and influences of fermentation on their bioactive components and bioactivities. Overall, fermented edible seeds and their products contain enhanced bioactive components, especially γ‐aminobutyric acid and natural phenolics, and they possess versatile bioactivities, such as antioxidant and anti‐cancer effects, and, therefore, can be recommended as an important part of the human diet, or they can be developed into functional foods to help in the prevention of certain chronic diseases. 相似文献
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发酵乳的营养价值及保健作用 总被引:19,自引:2,他引:19
详细介绍了发酵乳的营养价值和保健功能,对乳酸菌发酵乳营养、生理功能及机理进行了阐述,对开发发酵乳和乳酸菌饮料作为保健食品具有重要意义。 相似文献
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L.B. Bullerman 《Journal of dairy science》1981,64(12):2439-2452
Mold growth on cheese and other fermented dairy products is a common and recurring problem. Potential mycotoxin contamination is serious since some molds can grow and produce mycotoxins at temperatures as low as ?2 to 10°C. Work can be divided into: 1) incidence, types, and mycotoxin-producing potential of molds in fermented dairy products, 2) experimental mycotoxin production on cheese under conditions of storage and aging of cheese, 3) natural occurrence of mycotoxins in commercial samples of cheese, and 4) potential toxicity of Penicillium roqueforti and its significance in blue veined cheeses.Molds most common on cheese and fermented dairy products are Penicillium species. Mycotoxins produced by these organisms are penicillic acid, patulin, ochratoxin A, and citrinin. Percentages of molds in cheese capable of producing some commonly studied mycotoxins ranged from 1.8% to 12.4%. Cheese is an excellent substrate for mold growth but a poor substrate for mycotoxin production. Several natural occurrences of mycotoxins in cheese include small and variable amounts of patulin, penicillic acid, sterigmatocystin (600 µg/kg), penitrem A, and mycophenolic acid. Penicillium roqueforti is capable of producing toxic alkaloids and other compounds. The significance of these substances for human health is unclear.The decision to trim or to discard moldy cheese can be aided by considering the risk versus benefit based on storage history (temperature), extent of mold growth, appearance of mold (color), and size of cheese. 相似文献
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发酵乳的营养与保健作用 总被引:4,自引:0,他引:4
发酵乳,它是以乳或乳制品为主要原料,通过接种乳酸菌发酵后而制成.这种乳制品除含有丰富的蛋白质、糖类、矿物质及各种维生素外,还由于乳酸菌的作用,使乳中不易被人体消化吸收的乳糖变为乳酸,起到抑制肠道中有害微生物的生长繁殖、增进人体消化吸收的作用. 相似文献
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