共查询到20条相似文献,搜索用时 93 毫秒
1.
大豆异黄酮抗癌作用研究进展 总被引:10,自引:0,他引:10
大豆异黄酮是豆科植物的主要成分 ,近年来研究显示具有抗癌防癌作用。本文就大豆异黄酮的抗癌作用、研究抗癌作用的方法、抗癌机制以及毒理学研究等几个方面对大豆异黄酮目前抗癌方面研究作一综述。多数研究结果表明大豆异黄酮具有一定的抗癌作用 ,开发及研制相关食品及药物具有广阔前景. 相似文献
2.
大豆异黄酮是以大豆为原料提取制成的植物雌激素。大量研究表明,大豆异黄酮在防癌抗癌、防治心血管疾病、预防骨质疏松症、治疗妇女更年期综合症等方面有重要作用;但是在其稳定性的研究上,而国内还几乎为空白.因此,综述了大豆异黄酮组分稳定性以及该研究在异黄酮制备中的重大意义。 相似文献
3.
4.
5.
6.
雌马酚是大豆异黄酮在人体肠道中的最终代谢产物。众多研究表明大豆异黄酮具有广泛的保健价值,在预防心血管疾病、乳腺癌和前列腺癌等方面均发挥重要作用。大豆异黄酮的生物活性在某种程度上归因于雌马酚,并且雌马酚具有较其前体更高的生物学效用。大豆异黄酮在特定的肠道菌作用下降解产生雌马酚,但并非每个人体内都可代谢产生雌马酚。总结了雌马酚在人体中的生理活性,并且综合论述了化学合成制备混合型雌马酚的方法,以及生物合成雌马酚过程中,动物及人体内可降解大豆异黄酮的肠道菌筛选情况。 相似文献
7.
大豆中非营养因子的生理功能 总被引:2,自引:0,他引:2
大豆是一种非常优良的植物蛋白和油料资源 ,能提供丰富的蛋白质和脂肪及多种维生素、矿物质。除此之外 ,大豆中还含有一些非营养成分 ,它们也具有一些独特的生理功能。分述如下 :1 大豆异黄酮大豆异黄酮存在于大豆籽粒中 ,由于其对人体保健具有重要作用 ,近年来引起了科学界的广泛关注。 1998年世界环球科技期刊《科学新闻》以大豆异黄酮的标志为封面 ,重点介绍了大豆异黄酮产品的功能。大豆异黄酮的抗癌研究已成为世界热门焦点 ,具有极其重要的生理功能 :1 1 类似女性雌激素作用以及抗激素作用女性由于雌激素的减少而容易患肥胖症和骨质… 相似文献
8.
9.
10.
11.
12.
13.
豆腐乳中的功能性成分 总被引:4,自引:0,他引:4
腐乳是中国传统发酵豆制品,具有营养价值高,风味好等特点。主要就腐乳的营养价值、腐乳中的生理活性物质(大豆多肽、超氧化物歧化酶、大豆异黄铜、大豆低聚糖等)的保健功能及研究现状、现行腐乳生产中存在的问题、新技术在腐乳生产中的应用及其前景作概述。 相似文献
14.
骨质疏松是老年人和绝经妇女的常见病和多发病。近年来许多研究发现多种动物、植物体内的提取物(乳源活性肽、大豆异黄酮、白藜芦醇和海洋鱼寡肽等)可以起到防止骨丢失的功效,为此对近期生物提取物的研究进展进行了综述。 相似文献
15.
16.
Acetic acid treatment improves the physical, chemical, and physiological properties of soybeans. This study investigated the changes in isoflavone and carbohydrate profiles in four soybean cultivars subjected to different acetic acid treatment durations. The sum of total isoflavone content of the pickled soybeans and the pickling solution was increased by 30–93% after acetic acid treatment for 30 days. In the comparison to four isoflavone groups of the untreated soybean, malonyl glucosides were decreased by 17–41%, whereas glucosides were increased by 54–160% in the pickled soybeans. In particular, aglucones were found in the pickled soybeans, but not in the untreated soybeans. Following acetic acid treatment, the total carbohydrate content in the pickled soybeans was 50–65% less than that of untreated soybeans. In particular, oligosaccharides and sucrose in the pickled soybeans decreased significantly (> 50%) within the first 24 h. This study provides important information on the changes in isoflavone and certain carbohydrates profiles during soybean pickling, and may be useful to produce functional soybean-based foods containing more bioactive compounds. 相似文献
17.
18.
采用高效液相色谱法对黑龙江省不同产地、不同品种大豆中大豆异黄酮含量进行测定,利用不同品种和产地大豆中大豆异黄酮单体含量的不同对大豆异黄酮溯源特征指标进行筛选。结果表明:同一产地不同品种之间大豆异黄酮单体含量总体差异显著(p<0.05),不同产地不同品种之间大豆异黄酮单体含量总体没有显著差异(p>0.05)。因此,可以利用不同品种大豆中大豆异黄酮单体含量作为对大豆异黄酮溯源特征指标实现品种溯源。 相似文献
19.
ABSTRACT: The antioxidant properties of 80% ethanolic extracts from soybean obtained with lactic acid fermentation using ABTS•+ [2,2'-azinobis (3-ethylbenzothiazoline-6-sulphonicacid) diammonium salt] free radical decolorization assay and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging assay were measured, and the relationship between the observed antioxidant properties and the compositional changes in the isoflavone isomers was evaluated. Fermentation of soybean with 4 bacterial strains producing β-glucosidase for 48 h at 37°C— Lactobacillus plantarum KFRI 00144, Lactobacillus delbrueckii subsp. latisKFRI01181, Bifidobacteriathermophilum KFRI00748, and Bifidobacteria breve K-101—resulted in a significant increas (P < 0.05) in the antioxidant capacity expressed as Trolox equivalent antioxidant capacity (TEAC) (mM) and % scavenging activity. The significant bioconversion (P < 0.001) of the isoflavone glucosides (daidzin + genistin) into their responding bioactive aglycones (daidzein + genistein) during soy fermentation was observed. There was a good linear correlation between the concentration of isoflavone aglycones and the scavenging activity of ABTS ( R = 0.9045) assay, and DPPH ( R = 0.8299) assay in each extract. Among each extract, B. thermophilum KFRI 00748 showed a particularly high antioxidant activity (19.8 mM TEAC) and increased by 4.1 times compared with that of the control (4.8 mM TEAC), which fermented without strains. These results indicated that fermented soybean could be regarded as a potent antioxidant and radical scavenging dietary source due to their remarkable content of bioactive isoflavones. 相似文献