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减压蒸馏分离柑桔皮精油中柠檬烯的研究 被引量:11
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作者 徐宁 谭兴和 +3 位作者 王锋 张喻 蔡文 黄薪安 《食品工业科技》 CAS CSCD 北大核心 2014年第2期222-225,共4页
采用减压蒸馏分离椪柑皮精油中柠檬烯,对分离得到的产物通过测定折光率、比旋光度和相对密度等进行了鉴定,同时运用气相色谱-质谱联用技术分析了产物的成分,实验还探讨了蒸馏时间、蒸馏温度对柠檬烯分离效果的影响,结果表明,在真空度为0... 采用减压蒸馏分离椪柑皮精油中柠檬烯,对分离得到的产物通过测定折光率、比旋光度和相对密度等进行了鉴定,同时运用气相色谱-质谱联用技术分析了产物的成分,实验还探讨了蒸馏时间、蒸馏温度对柠檬烯分离效果的影响,结果表明,在真空度为0.1MPa下,柠檬烯最佳分离条件为:蒸馏温度170℃、蒸馏时间10min,此条件下的脱萜率约为92.38%。 展开更多
关键词 柠檬烯 减压蒸馏 分离 脱萜率
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Effects of Different Decolorants on Retention Rate of Total Triterpenes in Fruit and Rattan Stems of Schisandra chinensis(Turcz.) Baill
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作者 刘俊霞 金银萍 +2 位作者 窦凤鸣 王玉帅 王英平 《Agricultural Science & Technology》 CAS 2015年第12期2600-2603,共4页
This study was to investigate the decoloration effects of activated clay, activated carbon, diatomite, Ca group bentonite, kaolin, activated aluminum oxide, magnesium oxide and attapulgite. Ultraviolet-visible spectro... This study was to investigate the decoloration effects of activated clay, activated carbon, diatomite, Ca group bentonite, kaolin, activated aluminum oxide, magnesium oxide and attapulgite. Ultraviolet-visible spectroscopywas adopted to de- tect the absorbanees of the extracts of Schisandra chinensis fruit and rattan stems, the contents of total triterpenoids in S. chinensis fruit and rattan stems were deter- mined, and the decoloration rate and the retention rate of total triterpenoids of S. chi- nensis fruit and rattan stems were calculated. The results indicated that, attapulgite exhibited the best decoloration effect on the extract of S. chinensis fruit, with a de- coloration rate up to 60.47%, activated carbon exhibited a better decoloration effect on the extract of S. chinensis rattan stems, with a decoloration rate up to 69.24%, and they had relatively higher retention rates of total triterpenoids. In the eight de- colorants, attapulgite showed the best decoloration effect on the extract of S. chi- nensis fruit, and activated carbon exhibited the best decoloration effect on the ex- tract of S. chinensisrattan stems. 展开更多
关键词 Schisandra chinensis (Turcz.) Baill Total triterpenoids DECELERATION At- tapulgite Activated carbon Retention rate
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