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Study on preparation method of Zanthoxylum bungeanum seeds kernel oil with zero trans-fatty acids
Liu, Tong1,2; Yao, Shi-yong2; Yin, Zhong-Yi1; Zheng, Xu-Xu1,2; Shen, Yu1,3
2016-04-01
摘要The seed of Zanthoxylum bungeanum (Z. bungeanum) is a by-product of pepper production and rich in unsaturated fatty acid, cellulose, and protein. The seed oil obtained from traditional producing process by squeezing or extracting would be bad quality and could not be used as edible oil. In this paper, a new preparation method of Z. bungeanum seed kernel oil (ZSKO) was developed by comparing the advantages and disadvantages of alkali saponification-cold squeezing, alkali saponification-solvent extraction, and alkali saponification-supercritical fluid extraction with carbon dioxide (SFE-CO2). The results showed that the alkali saponification-cold squeezing could be the optimal preparation method of ZSKO, which contained the following steps: Z. bungeanum seed was pretreated by alkali saponification under the conditions of adding 10 %NaOH (w/w), solution temperature was 80 A degrees C, and saponification reaction time was 45 min, and pretreated seed was separated by filtering, water washing, and overnight drying at 50 A degrees C, then repeated squeezing was taken until no oil generated at 60 A degrees C with 15 % moisture content, and ZSKO was attained finally using centrifuge. The produced ZSKO contained more than 90 % unsaturated fatty acids and no trans-fatty acids and be testified as a good edible oil with low-value level of acid and peroxide. It was demonstrated that the alkali saponification-cold squeezing process could be scaled up and applied to industrialized production of ZSKO.
关键词Zanthoxylum bungeanum seed kernel oil (ZSKO) Alkali saponification Cold squeezing Polyunsaturated fatty acids (PUFAs) Trans-fatty acids
DOI10.1007/s11356-015-5052-z
发表期刊ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
卷号23期号:8页码:7132-7137
通讯作者Zheng, XX ; Shen, Y (reprint author), Chongqing Technol & Business Univ, Chongqing Key Lab Catalysis & Funct Organ Mol, Chongqing 400067, Peoples R China. ; Zheng, XX (reprint author), Chongqing Technol & Business Univ, Environm & Biol Engn Inst, Chongqing 400067, Peoples R China. ; Shen, Y (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China.
收录类别SCI
WOS记录号WOS:000374994600008
语种英语