共查询到19条相似文献,搜索用时 125 毫秒
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紫薯功能及产品开发研究进展 总被引:2,自引:0,他引:2
从紫薯的抗氧化、抗突变、抗肿瘤功能和保肝作用、抗高血糖、抗菌及其他作用对其功能作用和开发应用的研究进展进行综述,并对紫薯未来发展方向作一展望. 相似文献
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功能因子是果蔬食品中重要的营养成分.果蔬功能因子的高值化开发是目前果蔬食品研究的热点和重点.本文对目前我国果蔬功能因子研究现状、存在的问题及未来发展方向进行了论述. 相似文献
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The distribution of N, Ca, K, Mg and P in Brussels sprout plants has been studied. The calcium content of sprout buttons was very low relative to that in the rest of the plant but, from the analysis of buttons from plants grown on calcareous soils, this low calcium content appeared to be a normal condition and no reason was found to connect low calcium content with ‘internal browning’. The mineral composition of sprout buttons varied much less from position to position on the plant than did the composition of the laminae and the petioles. Laminae of old leaves contained high percentages of Ca, K and Mg. The pattern of distribution of K in the laminae at different positions on the plant was not the same in the plants grown at two sites, and this might be explained by differences in potash status of the two soils. The manurial treatments had larger positional effects on the Ca and N contents of the sprout buttons and of the laminae than for the petioles. The supply of N, whether as fertiliser or farmyard manure, had a greater effect on the mineral composition of both sprout buttons and laminae than had applications of phosphatic or potassic fertilisers. 相似文献
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The mineral composition and microscopic changes in thoracic buttons of Chinese Yellow steer with age
Tips of sacral, lumbar and thoracic vertebrae were sampled from 67 Chinese Yellow steer carcasses to determine relationships of the mineral composition in tips of vertebrae to the ossification degree as well as the dental age. Thoracic buttons were taken from another 11 Chinese Yellow steer carcasses to study their microscopic changes with age. Percentages of ash, calcium and phosphorus in thoracic buttons, on a fresh weight basis, increased with increasing ossification degree (R(2)=0.9815, 0.9743, 0.9817, respectively) and dental age (R(2)=0.9496, 0.9455, 0.9209, respectively), but those in tips of lumbar and sacral vertebrae varied little (P>0.05). Based on the same levels of ash percent in thoracic buttons, a corresponding relationship between the ossification degree and the dental age was observed: thoracic buttons did not ossify when the dental age was under 24 months; and 10%, 30%, and 40% of thoracic buttons ossified at the dentition-based age of 36, 50, and 60 months. Observations by scanning electron microscopy indicated that cartilages of Chinese Yellow steer thoracic buttons began to ossify at approximately 24 months and ossified completely at 84 months. The present study could be useful to improve the accuracy of age estimation for Chinese Yellow steers in the Chinese beef grading system. 相似文献
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近年来中药多糖的生物活性备受关注,研究也越来越深入。在现代研究中,太子参多糖具有抗糖尿病、免疫调节、保护心肌等多种生物活性,是太子参发挥功效及保健养身功能的最重要的物质基础成分。太子参多糖相关研究是解决太子参药材质量控制难题的关键,现已成为太子参研究领域的热门。本文综述了太子参多糖的提取分离、结构组成、生理功效等方面的研究内容,以期为太子参多糖的研究、开发与利用提供参考。 相似文献
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乳杆菌属的益生菌保健功能及研究进展 总被引:3,自引:1,他引:2
益生菌是一种通过改善动物肠道微生物平衡从而对宿主施加有益影响作用的微生物,它们对宿主机体有着其他正常生理菌群无法比拟的生理作用。综述了益生菌的历史及种类、生理保健功能及作用机理、益生菌的应用与发展。 相似文献
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根据窗口宽度创建可自动折叠或展开的工具栏 总被引:1,自引:0,他引:1
结合开发实例,介绍了如何用Visual C 6.0创建能根据应用程序窗口宽度自动折叠或展开的工具栏.当窗口变窄时,自动折叠起来,即按照使用频度,依次将工具栏上的一组相关按钮折叠成下拉菜单.而当窗口变宽时,则按相反顺序展开.且能保持与对话栏占据同一行的位置,节省视窗空间. 相似文献