Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2021, Vol. 42 ›› Issue (4): 1120-1126.DOI: 10.3969/j.issn.1000-2561.2021.04.031

• Post-harvest Treatment & Quality Safety • Previous Articles     Next Articles

Extraction of Camellia Oil from Wuyi Shuixian Tea by Ethanol and Quality Analysis

YU Lizhi1,2(), LIU Qilin1, ZHANG Tingting1, FU Chunjin1   

  1. 1. College of Tea and Food Science, Wuyi University / Collaborative Innovation Center of Chinese Oolong Tea Industry, Wuyishan, Fujian 354300, China
    2. College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China
  • Received:2020-03-24 Revised:2020-06-02 Online:2021-04-25 Published:2021-04-25


The extraction of camellia oil of Wuyi Shuixian tea was carried out by aqueous ethanol. The effects of extraction temperature, ratio of material to liquid, concentration of ethanol and pH on the extraction rate were investigated by the single factor experiment. The orthogonal experiment design was used to optimize the extraction conditions. The results showed that the best extraction conditions were ethanol concentration 30% (V/V), material to liquid ratio 1∶7, pH 9, extraction temperature 60 ℃, under which the extraction rate of camellia oil was 93.61%. 18 kinds of fatty acids were detected in the extracted camellia oil from Wuyi Shuixian tea, mainly oleic acid (51.77%), linoleic acid (23.14%), ΣSFA∶ΣMUFA∶ΣPUFA = 1∶2.64∶1.27, and all physicochemical indexes measured meet the national standards. The results show that camellia oil from Wuyi Shuixian tea is a kind of plant edible oil with high nutritional value. The conclusion could provide theoretical basis for the extraction and quality evaluation of tea seed oil in Wuyishan tea production area.

Key words: Wuyi Shuixian tea seed, tea camellia seed oil, aqueous ethanol methodology, extraction, quality

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