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中国精品科技期刊2020
亚临界水提取枇杷叶中熊果酸的工艺优化[J]. 食品工业科技, 2013, (13): 189-192. DOI: 10.13386/j.issn1002-0306.2013.13.018
引用本文: 亚临界水提取枇杷叶中熊果酸的工艺优化[J]. 食品工业科技, 2013, (13): 189-192. DOI: 10.13386/j.issn1002-0306.2013.13.018
Study on optimization for the extraction of ursolic acid from loquat leaf[J]. Science and Technology of Food Industry, 2013, (13): 189-192. DOI: 10.13386/j.issn1002-0306.2013.13.018
Citation: Study on optimization for the extraction of ursolic acid from loquat leaf[J]. Science and Technology of Food Industry, 2013, (13): 189-192. DOI: 10.13386/j.issn1002-0306.2013.13.018

亚临界水提取枇杷叶中熊果酸的工艺优化

Study on optimization for the extraction of ursolic acid from loquat leaf

  • 摘要: 研究了亚临界水萃取过程中萃取温度、萃取时间、溶剂流速、系统压力等因素对枇杷叶中熊果酸提取率的影响,并对提取液进行HPLC分析确定熊果酸的含量。结果表明,最优工艺条件:提取温度200℃、时间75min、泵的频率50Hz、压力10MPa,提取率达到70.28%。与传统加热回流和超声辅助提取法进行比较,在不使用有机溶剂的前提下,不仅缩短了萃取时间,同时提高了熊果酸的提取率,证实了亚临界水萃取方法具有高效节能的优点,并为亚临界水萃取方法用于熊果酸的工业化生产奠定了基础。 

     

    Abstract: The subcritical water extraction method was used to extract ursolic acid from loquat leaf, and the extracted solution was analyzed by HPLC to identify the ingredients and contents.The influence of extraction time, temperature, flow rate and the system pressure on the extraction ratio were investigated.The results showed that the optimum conditions with the extraction ratio of 70.28% were 200℃, 75min, 50Hz and 10MPa. Compared to the alcohol recirculating extraction and ultrasonic extraction method, the SWE method could shorten the extraction time and improve the extraction ratio of ursolic acid without consumption of organic solvents, which proves the SWE technique to be an energy-efficient method and paves the way for its industrialization.

     

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