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1.
酚类物质已被证实具有降低冠心病、糖尿病、癌症和其他慢性疾病患病率的功能,近年来,如何将其作为生物活性物质应用到在食品和药品领域受到广泛关注。然而酚类物质的低水溶性、低稳定性、被动扩散方式以及在胃肠道环境中的损失限制了其在人体内的生物利用度。目前解除这些限制的最佳方法就是基于食品运载体封装技术对酚类物质进行包埋,这种方法已被证实可有效提高活性成分的稳定性和生物利用度。本文介绍了酚类物质的功能性质和评价其生物利用度的常见方法,对现有的运载体系及其在提高酚类物质生物利用度方面的应用现状进行综述,最后针对目前研究中存在的问题对未来酚类物质运载体系的研究方向提出合理建议。  相似文献   

2.
姜黄素具有抗氧化、抗肿瘤、降血脂和预防老年痴呆等多种生理功能,还可以用作天然着色剂、食品防腐剂、抗氧化剂等;然而水溶性差、不稳定、代谢速度快、生物利用率低等缺陷限制了其在食品领域中的应用.利用食品运载体系,以天然生物分子为材料制备姜黄素的传递载体可以解决上述问题.本文介绍了姜黄素的结构特征和理化性质,以及限制其利用的主...  相似文献   

3.
维生素E是具有抗氧化活性等多种生理活性功能的脂溶性维生素,但是脂溶性限制了其在水溶性体系为主流的食品体系中的应用,并降低了其生物利用度。利用脂质体、纳米颗粒、乳液、微胶囊和环糊精包合物等食品运载体系可以改变维生素E的溶解性。选用恰当的运载体系,并对体系原材料筛选并加以适当修饰或改性能够有效提高维生素E的稳定性和生物利用率。本文概述了不同食品级运载体系对维生素E的包埋方法、负载特性和产品功能方面的研究和应用进展,为开发性能优良的运载体系,提高维生素E的稳定性和生物利用率提供有益的指导。  相似文献   

4.
叶黄素属于类胡萝卜素,具有多种生物活性功能,可以避免视网膜色素上皮细胞受蓝光损伤、预防心脑血管疾病、抗肿瘤等;此外,叶黄素还是天然的食品着色剂和抗氧化剂。但是叶黄素存在水溶性和化学稳定性较差、生物利用率低等缺陷,这限制了其在食品领域中的应用。利用食品运载体系可以解决上述问题。本文分析了限制叶黄素应用的原因,对现有食品运载体系包埋叶黄素的研究现状进行综述,以期为叶黄素的进一步研究与应用提供参考。  相似文献   

5.
叶黄素属于类胡萝卜素,具有多种生物活性功能,可以避免视网膜色素上皮细胞受蓝光损伤、预防心脑血管疾病、抗肿瘤等;此外,叶黄素还是天然的食品着色剂和抗氧化剂。但是叶黄素存在水溶性和化学稳定性较差、生物利用率低等缺陷,这限制了其在食品领域中的应用。利用食品运载体系可以解决上述问题。本文分析了限制叶黄素应用的原因,对现有食品运载体系包埋叶黄素的研究现状进行综述,以期为叶黄素的进一步研究与应用提供参考。  相似文献   

6.
葡萄酒酚类物质研究进展   总被引:1,自引:0,他引:1  
酚类物质作为葡萄酒的“骨架成分”,在葡萄酒中起着重要作用,不仅影响葡萄酒的颜色、滋味和口味等,还具有抗氧化作用。概述了葡萄酒中主要的酚类物质及其作用研究进展。  相似文献   

7.
油菜籽酚类物质研究进展   总被引:1,自引:0,他引:1  
油菜籽酚类物质作为一种新型的天然抗氧化剂,是油菜籽中一类重要的活性物质,在油菜籽仁和种皮中含量丰富。本文综述了油菜籽酚类物质的组成及性质、生物活性、制备方法及分析,并对油菜籽酚类物质在医药、功能性食品、化妆品等领域的应用前景作了概述。  相似文献   

8.
苹果酒中含有多种酚类物质,主要是酚酸类和类黄酮类化合物,酚酸类包括绿原酸、原儿茶酸和p-香豆酸等,类黄酮类主要是黄烷-3-醇类,包括儿茶素、表儿茶素等.这些成分对苹果酒的风味、颜色和质量起着重要作用.综述了苹果酒中的酚类化合物及其作用机理,并简要介绍了酚类物质的测定方法.  相似文献   

9.
果蔬原料中含有丰富的酚类化合物,它具有抗癌、抗氧化、抗菌、抗病毒等生物活性。近年来,酚类物质的生物利用逐渐被人们关注,包括酚类物质在体内消化和被肠道微生物的降解情况,以及加工方式对酚类物质体外消化和体外肠道发酵的影响,但结论缺乏系统性。本文围绕果蔬中酚类物质在消化吸收和果蔬加工过程中的变化,综述影响果蔬中酚类物质生物利用的主要因素,以期为调控果蔬制品中酚类物质生物利用提供理论依据。  相似文献   

10.
葡萄酒酚类物质的研究进展   总被引:7,自引:3,他引:4  
葡萄酒中含有多种酚类成分,这些成分在葡萄酒中起着重要的作用,首先,影响葡萄酒的口感,使葡萄酒具有苦味和收敛性,尤其是红酒;第二,影响葡萄酒的颜色;第三,起到防腐的作用,延长酒的寿命;第四,在葡萄酒中起抗氧化作用.文中介绍了葡萄酒中主要的多酚类化合物及作用.  相似文献   

11.
天然酚类化合物因其对人体健康具有众多益处,近年来在食品、营养学和医药等领域得到了广泛的关注.然而,酚类化合物较差的溶解性、稳定性和生物利用度等严重地限制了其应用.如何有效地保护和运载这些酚类化合物并保持其生物活性成为研究的热点问题.静电纺丝是一种易于操作且成本低廉的纳米级纤维制备技术,所制备的纳米纤维可作为纳米载体对生...  相似文献   

12.
类胡萝卜素主要存在于深色的水果蔬菜中,具有抗炎和抗氧化等生物活性功能,可以增强人体免疫系统,帮助抵御各种病毒,包括SARS-CoV2和其它病毒。类胡萝卜素也是天然的抗氧化剂和着色剂,在保护人体健康和工业发展方面起着重要的作用。然而,类胡萝卜素稳定性差和生物利用度低等缺陷使其不能充分发挥生物活性,这限制了类胡萝卜素在食品领域的应用。针对这些问题,可以利用食品级包封材料对类胡萝卜素进行包封处理来解决。本文简述类胡萝卜素的代谢过程和影响其生物利用度的因素,重点介绍包封类胡萝卜素递送系统的研究现状,旨在为类胡萝卜素在食品中的应用提供参考。  相似文献   

13.
    
Vitamin A is an essential micronutrient whose deficiency is still a major health concern in many regions of the world. It plays an essential role in human growth and development, immunity, and vision, but may also help prevent several other chronic diseases. The total amount of vitamin A in the human diet often falls below the recommended dietary allowance of approximately 900–1000 μ $ umu $ g/day for a healthy adult. Moreover, a significant proportion of vitamin A may be degraded during food processing, storage, and distribution, thereby reducing its bioactivity. Finally, the vitamin A in some foods has a relatively low bioavailability, which further reduces its efficacy. The World Health Organization has recommended fortification of foods and beverages as a safe and cost-effective means of addressing vitamin A deficiency. However, there are several factors that must be overcome before effective fortified foods can be developed, including the low solubility, chemical stability, and bioavailability of this oil-soluble vitamin. Consequently, strategies are required to evenly disperse the vitamin throughout food matrices, to inhibit its chemical degradation, to avoid any adverse interactions with any other food components, to ensure the food is palatable, and to increase its bioavailability. In this review article, we discuss the chemical, physical, and nutritional attributes of vitamin A, its main dietary sources, the factors contributing to its current deficiency, and various strategies to address these deficiencies, including diet diversification, biofortification, and food fortification.  相似文献   

14.
Phenolic compounds in foods originate from one of the main classes of secondary metabolites in plants. They are essential for the growth and reproduction of plants, and are produced as a response for defending injured plants against pathogens. In recent years, there is a growing interest in phenolic compounds and their presumed role in the prevention of various degenerative diseases, such as cancer and cardiovascular diseases. The importance of antioxidant activities of phenolic compounds and their possible usage in processed foods as a natural antioxidant have reached a new high in recent years. The absorption and bioavailability of phenolics in humans are also controversial. Data on these aspects of phenolics are scarce and merely highlight the need for extensive investigations of the handling of phenolics by the gastrointestinal tract and their subsequent absorption and metabolism. In this article, absorption, metabolism, and the bioavailability of pheniolic compounds are reviewed.  相似文献   

15.
乳液输送体系包埋海洋源脂溶性活性物质研究进展   总被引:1,自引:0,他引:1  
海洋源脂溶性活性物质表现出许多潜在的有益生物学功能,如增强机体免疫力、缓解疲劳、抗氧化、改善生长发育等,然而其水溶性差、易降解、在胃肠道中损失率高等劣势降低了它们生物利用度.乳液输送体系可作为海洋源脂溶性活性物质递送载体,可以有效改善其物理化学不稳定性,提高生物利用度.文章介绍了运载海洋源脂溶性活性物质的乳液体系类型及...  相似文献   

16.
17.
由于代谢形态变化以及其与食品大分子相互作用等因素的影响,酚类化合物的体内外生理活常常表现不一致。酚类化合物与脂质、蛋白质和碳水化合物等食品大分子的相互作用是造成这一现象的主要原因。本文综述了酚类化合物与食品大分子之间的相互作用及食品大分子对酚类化合物生物利用度和生理活性的影响,以期为深入探讨酚类化合物的体内代谢机制提供借鉴。   相似文献   

18.
    
Adequate intake of live probiotics is beneficial to human health and wellbeing because they can help treat or prevent a variety of health conditions. However, the viability of probiotics is reduced by the harsh environments they experience during passage through the human gastrointestinal tract (GIT). Consequently, the oral delivery of viable probiotics is a significant challenge. Probiotic encapsulation provides a potential solution to this problem. However, the production methods used to create conventional encapsulation technologies often damage probiotics. Moreover, the delivery systems produced often do not have the required physicochemical attributes or robustness for food applications. Single-cell encapsulation is based on forming a protective coating around a single probiotic cell. These coatings may be biofilms or biopolymer layers designed to protect the probiotic from the harsh gastrointestinal environment, enhance their colonization, and introduce additional beneficial functions. This article reviews the factors affecting the oral delivery of probiotics, analyses the shortcomings of existing encapsulation technologies, and highlights the potential advantages of single-cell encapsulation. It also reviews the various approaches available for single-cell encapsulation of probiotics, including their implementation and the characteristics of the delivery systems they produce. In addition, the mechanisms by which single-cell encapsulation can improve the oral bioavailability and health benefits of probiotics are described. Moreover, the benefits, limitations, and safety issues of probiotic single-cell encapsulation technology for applications in food and beverages are analyzed. Finally, future directions and potential challenges to the widespread adoption of single-cell encapsulation of probiotics are highlighted.  相似文献   

19.
β-胡萝卜素具有多种对人体有益的生理活性,但其物理化学不稳定性、低水溶性,这些都会导致β-胡萝卜素低的生物利用率,从而极大地限制了β-胡萝卜素在食品工业中的应用。近年来,为了改善β-胡萝卜素的物化不稳定性、低水溶性及低的生物利用率,越来越多利用不同包埋技术构建的食品级运载体系来负载β-胡萝卜素。载β-胡萝卜素食品级运载体的研究与开发能够更加广泛地提高β-胡萝卜素的应用。本文综述了近年来不同包埋形式的食品级运载体系对β-胡萝卜素的负载特性和所存在的相关问题,为开发性能优良的食品级运载体系和提高β-胡萝卜素的稳定性、生物利用率提供一定理论的参考。   相似文献   

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