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芦荟色酮的高速逆流色谱分离制备方法研究 被引量:15
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作者 潘霞 曹学丽 +1 位作者 董银卯 赵华 《色谱》 CAS CSCD 北大核心 2005年第1期96-99,共4页
芦荟色酮是在芦荟叶中特有的一类具有抗炎和抑制酪氨酸酶等作用的活性物质。以芦荟全叶为原料,经过一系列的预处理手段,从脱色剂活性炭中获得芦荟色酮粗提物,再经过溶剂分配和富集后采用高速逆流色谱(HSC CC)对其中的色酮成分进行分离... 芦荟色酮是在芦荟叶中特有的一类具有抗炎和抑制酪氨酸酶等作用的活性物质。以芦荟全叶为原料,经过一系列的预处理手段,从脱色剂活性炭中获得芦荟色酮粗提物,再经过溶剂分配和富集后采用高速逆流色谱(HSC CC)对其中的色酮成分进行分离纯化。研究结果表明,采用氯仿 甲醇 水(体积比为4∶3∶2)混合溶液和二氯甲烷 甲醇 水(体积比为5∶4∶2)混合溶液作为溶剂分离系统,经过两步HSCCC可以分离纯化出色谱纯度在95%以上的芦荟色酮单体。经过紫外检测、快原子轰击质谱及核磁共振等方法的结构分析鉴定,证实分离所得物质为肉桂酰基 C 葡萄糖甙芦荟色酮。 展开更多
关键词 高速逆流色谱 芦荟色酮 分离纯化
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Aloesin as a medical food ingredient for systemic oxidative stress of diabetes 被引量:9
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作者 Mesfin Yimam Lidia Brownell Qi Jia 《World Journal of Diabetes》 SCIE CAS 2015年第9期1097-1107,共11页
Diabetes is a chronic disease that requires a long term management where oxidative stress plays a pivotal role in disease progression and intensifying secondary complications. In spite of all the research on diabetes ... Diabetes is a chronic disease that requires a long term management where oxidative stress plays a pivotal role in disease progression and intensifying secondary complications. In spite of all the research on diabetes and recent advances in diabetes treatments, the reality is that there is no cure for diabetes and its devastating complications. While currently available anti-diabetic therapies are effective in reducing blood glucose level, they are not without associated side effects when they are used for a long term applications. As a result, physicians and patients are inclining more towards to a safer therapy with less serious side effects in the form of medicinal foods and botanical alternatives that are suitable for chronic usage. Aloesin, an Aloe chromone, has previously been formulated with an aloe polysaccharide to give a composition called Loesyn, where it showed significant impact in reducing glycosylated hemoglobin, fasting blood glucose, fructosamine and plasma insulin level in humans. Radical scavenging activities of chromones and polysaccharides from Aloe have also been reported. Here we rationalize the relevance of use of Aloesin alone or in a standardized blend with Aloe polysaccharides, as a potential medical food to manage systemic oxidative stress and/or high blood glucose of diabetes. 展开更多
关键词 aloesin aloe POLYSACCHARIDES DIABETES Oxidative stress MEDICINAL food aloe chromone
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芦荟色酮的研究概况 被引量:5
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作者 曹学丽 潘霞 +2 位作者 赵华 何聪芬 董银卯 《中草药》 CAS CSCD 北大核心 2004年第7期U003-U005,共3页
芦荟色酮是芦荟中重要的一类生物活性物质 ,近年来由于其抗炎、抗氧化及抑制酪氨酸激酶的活性受到了人们的广泛关注。相对于芦荟中的其他成分而言 ,关于芦荟色酮的研究 ,国内外开展还较少。现对芦荟色酮成分、药用价值。
关键词 芦荟色酮 生物活性 分离纯化
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