Degradation of chlorophyll in model preparations
Degradation of chlorophyll in model preparations
复制标题
模型制剂中叶绿素的降解
DOI：
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发表时间：
1998
影响因子：
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通讯作者：
R. Berger
中科院分区：
文献类型：
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作者：
G. Buech;R. Berger
当叶绿素在椰子油和半合成的三酰甘油Miglyol中避光储存时，样品比与向日葵籽油的混合物更稳定。暴露于光的叶绿素（3.000勒克斯）在向日葵油中更稳定。共提取的植物成分明显降低了椰子油模型中叶绿素的稳定性。添加α-生育酚至630 mg kg-1可改善叶绿素粗品和与椰子油混合的光照混合物的耐贮性。卵磷脂（600 mg kg-1）的协同活性与它们的磷脂酰胆碱含量相关，并且产生具有24天（3.000 lux 40°C）的半衰期的椰子油/叶绿素混合物，相比之下，未补充叶绿素/椰子油混合物的半衰期<20小时。
When chlorophyll was dark-stored in coconut butter and the semisynthetic triacylglycerol Miglyol the samples were more stable than the mixture with sunflower oil. Light exposed chlorophyll (3.000 lux) was more stable in sunflower oil. Co-extracted plant constituents apparently decreased the stability of chlorophyll in the coconut butter model. An addition of α-tocopherol up to levels of 630 mg kg -1 improved the storability of crude chlorophyll preparations and of light exposed mixtures with coconut butter. The synergistic activity of lecithins (600 mg kg -1 ) correlated with their contents of phosphatidyl choline and yielded coconut butter/chlorophyll mixtures with a half life time of 24 days (3.000 lux 40°C) as compared to <20 hours for the non-supplemented chlorophyll/ coconut butter mixture.