共查询到18条相似文献,搜索用时 78 毫秒
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油茶籽粕中茶皂素的提取工艺研究 总被引:2,自引:2,他引:2
茶皂素是一种天然非离子表面活性剂,在日化、医药、食品、建材和农药等行业有广泛的应用。以油茶籽粕为原料,乙醇为浸提液,分别研究了料液比、温度、原料粒度、乙醇浓度、pH值、提取时间对茶皂素得率的影响。在单因素试验的基础上,经响应面分析法确定茶皂素提取的最佳工艺,即:料液比1:20、温度81℃、粒度80目、乙醇浓度63%、pH=11、提取时间4 h,茶皂素得率为20.54%,与理论预测值21.12%相比仅差0.58%。由结果可知,该方法简单可行,得率高。 相似文献
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油茶饼粕茶皂素与多糖综合提取工艺 总被引:1,自引:0,他引:1
以油茶脱脂饼粕为原料,对其茶皂素和多糖的综合提取工艺进行研究。采用有机溶剂浸提法先提取茶皂素,再提取多糖,并分别采用单因素试验和正交试验探讨其最佳工艺条件。结果表明,提取油茶饼粕皂素的最佳工艺条件为乙醇浓度80%、料液比1:9(g/mL)、提取时间4 h、提取温度90℃,在此条件下茶皂素提取率为8.98%;提取油茶饼粕多糖的最佳工艺条件为提取温度70℃、料液比1:30(g/mL)、提取时间4 h,在此条件下多糖提取率为5.88%。 相似文献
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为提高油茶粕经济价值,充分利用油茶粕资源,以油茶粕为原料,采用热水连续多级逆流提取油茶粕中的茶皂素,优化了单级提取和连续多级逆流提取工艺参数.结果表明:单级提取的优化条件为提取时间85 min,提取温度80℃,料液比1:16 g/mL,油茶粕提取粒度60~100目.在单级提取基础上,确定连续多级逆流提取的优化提取级数为... 相似文献
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Shiv Shankhar Kaundun Satoru Matsumoto 《Journal of the science of food and agriculture》2011,91(14):2660-2663
BACKGROUND: Tea is the most consumed beverage worldwide after water. Yet very little is known about the genetics of tea in comparison with other crop species. Here we have taken advantage of the polymorphic nature of microsatellite DNA to investigate the mode of chloroplast inheritance in tea, Camellia sinensis (L.) O. Kuntze. This is important for the correct interpretation of phylogeny and introgression data as well as assessing the suitability of chloroplast transformation as a means for transgene containment in tea. RESULTS: The study was based on six Japanese tea cultivars, namely Aj2, CK23, Hatsumomiji, Nka05, Yamanoibuki and Kanayamidori used to generate four informative families. The parental pairs in the crosses differed at a single chlroroplast locus with respect to an imperfect microsatellite repeat of 16 nucleotide bases. In agreement with earlier cytological studies, all 61 progeny displayed a cpDNA profile that was consistent with the maternal inheritance of chloroplasts in tea. CONCLUSIONS: The data generated here provide the first molecular evidence of the plastid inheritance in tea. However, we suggest that additional families and polymorphic markers be screened for increasing the confidence in the observed maternal inheritance of chloroplasts in this important crop species. Copyright © 2011 Society of Chemical Industry 相似文献
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