从葡萄酒厂废渣中提取齐墩果酸的工艺研究
葡萄酒厂废渣,,葡萄酒厂废渣；齐墩果酸；提取工艺,1实验材料与仪器,2制备OA的实验室方法,3从葡萄皮中提取OA的工业制备方法,4放大试验和产品质量检测
摘要: 目的： 探讨葡萄酒厂废渣中提取齐墩果酸的最佳工艺。方法： 醇提物经酸碱处理，用正交试验优选最佳工艺。结果： 最佳提取条件为：95%工业酒精提取2次(每次1.5 h)，酸化析晶调pH至1，5% NaOH洗杂质3次。所得产品纯度为95.67%，收率为0.71%。结论：用乙醇提取、酸碱处理可以高效提取葡萄酒厂废渣中的齐墩果酸。关键词: 葡萄酒厂废渣；齐墩果酸；提取工艺
Study on the extract of oleanolic acid from waster esidue of grape winery
TIAN Liting， MA Long， ZHANG Xuan， et al
(School of Public Health, Xinjiang Medical University, Urumqi 830054，China)
Abstract: Objective: It was studied to extract oleanolic acid from waste residue of grape winery. Methods: Ethanol (EtOH) extract was charged by acid and NaOH sol. Orthogonal design was used to optimize the better extract conditions. Result: The better extract conditions: First, waste residue was twice extracted by 95% EtOH. Second, add acid to pH1 to separate the crystal out. Third, the semifinished product was washed by 5%NaOH sol. three times. The obtained product′s purity is 95.67% and the rate of obtain is 0.71%. Conclusion: The better extract conditions can be get through the extracting of EtOH and the processing of acid and 5%NaOH sol. ......
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