Extraction of Fenugreek (Trigonella foenum-graceum L.) Seed Oil Using Subcritical Butane: Characterization and Process Optimization.
In this study, the subcritical butane extraction process of fenugreek seed oil was optimized using response surface methodology with a Box-Behnken design. The optimum conditions for extracted oil from fenugreek seed was as follows: extraction temperature of 43.24 °C , extraction time of 32.80 min, and particle size of 0.26 mm. No significant differences were found between the experimental and predicted values. The physical and chemical properties of the oil showed that the oil could be used as edible oil. Fatty acid composition of oils obtained by subcritical butane under the optimum conditions and by accelerated solvent extraction showed negligible difference. The oils were rich in linoleic acid (42.71%-42.80%), linolenic acid (26.03%-26.15%), and oleic acid (14.24%-14.40%). The results revealed that the proposed method was feasible, and this essay shows the way to exploit fenugreek seeds by subcritical butane extraction under the scope of edible oils.
School of Physics and Engineering, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan Province, China. gulingbiao@foxmail.com.
Ling-Biao
LB
Gu
School of Physics and Engineering, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan Province, China. liuxiaoning@gs.zzu.edu.cn.
Xiao-Ning
XN
Liu
College of Food Science and Technology, Henan University of Technology, 100 Lianhua Road, Zhengzhou 450001, Henan Province, China. liuhuamin5108@163.com.
Hua-Min
HM
Liu
School of Physics and Engineering, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan Province, China. phl@zzu.edu.cn.
Hui-Li
HL
Pang
School of Physics and Engineering, Zhengzhou University, 100 Science Avenue, Zhengzhou 450001, Henan Province, China. qinguangyong@zzu.edu.cn.
Guang-Yong
GY
Qin
D002073:Butanes / Q000737:chemistry*; D002152:Calorimetry, Differential Scanning; D005227:Fatty Acids / Q000737:chemistry; D059625:Liquid-Liquid Extraction / Q000379:methods; D064209:Phytochemicals / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D013818:Thermogravimetry; D029910:Trigonella / Q000737:chemistry*
D002073:Butanes; D005227:Fatty Acids; D064209:Phytochemicals; D010936:Plant Extracts; D010938:Plant Oils; C046888:butane
fatty acid; fenugreek seed oil; response surface methodology; subcritical butane extraction