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FOOD SCIENCE
2013,34
(14)
6-11
脂质基质中植物甾醇氧化物的纯化
作 者：
姜绍通;潘影;庞敏;潘丽军;操丽丽
单 位：
合肥工业大学生物与食品工程学院;合肥工业大学生物与食品工程学院,合肥工业大学农产品加工研究院,安徽省农产品精深加工重点实验室
关键词：
脂质基质;植物甾醇;皂化;响应曲面法;纯化
摘 要：
以脂质基质中植物甾醇高温氧化产物为原料,采用皂化工艺对植物甾醇氧化物进行纯化。在单因素试验基础上,以植物甾醇的质量浓度为指标,采用响应曲面法优化皂化工艺的条件,建立并分析各因素与指标的数学模型。结果表明:皂化的最佳工艺条件为KOH-乙醇溶液浓度3.22mol/L、KOH-乙醇溶液用量40.04mL/g、皂化温度69.07℃、皂化时间2.02h,在此条件下植物甾醇质量浓度达到0.1455mg/mL。
译 名：
Optimization of Saponification Conditions for Purification of Phytosterol Oxidation Products from Lipid Matrix
作 者：
JIANG Shao-tong,PAN Ying,PANG Min,PAN Li-jun,CAO Li-li(Key Laboratory for Agriculture Processing of Anhui Province,Institute of Food Science and Engineering,School of Biotechnology and Food Engineering,Hefei University of Technology,Hefei 230009,China)
关键词：
lipid matrix;phytosterols;saponification;response surface methodology;purification
摘 要：
Lipid matrix was saponified for the purification of phytosterol oxidation products from it.Response surface methodology was applied to optimize four process conditions based on phytosterol concentration.A mathematical model was developed indicating the effect of the studied variables on phytosterol concentration.Results showed that the optimal saponification parameters were addition of 40.04 mL/g of 3.22 mol/L KOH ethanol solution,69.07 ℃ and 2.02 h.The final product obtained under the optimized conditions contained 0.1455 mg/mL phytosterols.
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