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| 油茶籽油的水媒法罐组式逆流提取工艺优化及其品质分析 |
| Optimization of multi-stage countercurrent aqueous extraction process and quality analysis of oil-tea camellia seed oil |
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| DOI：10.12166/j.zgyz.1003-7969.2019.12.002 |
| 中文关键词: 油茶籽油 罐组式逆流提取 水媒法 表面活性剂 茶皂素 |
| 英文关键词:oil-tea camellia seed oil multi-stage countercurrent extraction aqueous extraction surfactant tea saponin |
| 基金项目:国家食品与工程一流学科建设项目（JUFSTR20180202） |
| Author Name | Affiliation | | ZHANG Shiqi1,YANG Ruijin1,WU Jing2, ZHANG Wenbin3, ZHAO Wei3, HUA Xiao3 | 1.School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
2.Jiangxi Green Fairyland Biotechnology Co., Ltd., Ruijin 342500, Jiangxi, China
3.State Key Laboratory of Food Science & Technology, Jiangnan University,
Wuxi 214122, Jiangsu, China) |
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| 中文摘要: |
| 在茶皂素辅助水媒法提取油茶籽油研究的基础上，通过正交试验优化了水媒法罐组式逆流提取油茶籽油的工艺条件。同时，对比了水媒法罐组式逆流提取工艺、土榨法、溶剂浸出法、乙醇水提法、超临界萃取法所得油茶籽油的质量指标。结果表明，水媒法罐组式逆流提取油茶籽油的最佳工艺条件为：纯水提取，提取温度50 ℃，pH 10，料液比1∶ 3，单次提取时间30 min。在最佳工艺条件下，提油率为88.25%，所得油茶籽油品质优良，富含多酚、角鲨烯等有益物质。水媒法罐组式逆流提取工艺安全环保，提取剂用量少，提取温度低，能够在保证油品质量的同时提高油茶籽油提取效率，在植物油提取工艺上具有应用和推广的潜力。 |
| 英文摘要: |
| Based on the study of tea saponin-assisted aqueous extraction processing, multi-stage countercurrent aqueous extraction conditions of oil-tea camellia seed oil were optimized by orthogonal experiment. The quality indexes of oil-tea camellia seed oils obtained by multi-stage countercurrent aqueous extracting process, traditional pressing method, solvent extraction, ethanol-assisted aqueous extraction and supercritical extraction were compared. The results showed that the optimal extraction conditions were obtained as follows: extracting with water, extraction temperature 50 ℃, pH 10, solid-liquid ratio 1∶ 3, single stage extraction time 30 min. Under these conditions, the oil extraction rate was 88.25% and the oil-tea camellia seed oil had good quality and it was rich in beneficial compounds such as polyphenols and squalene.The multi-stage countercurrent aqueous extraction process was safe and environment-friendly with small consumption of extraction agent and low temperature, and it could ensure the quality of oil and extraction efficiency. The process had the potential of application and promotion in the extraction of vegetable oil. |
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