Extraction of Podocarpus nagi nut oil and analysis of their physicochemical properties

Authors

LU Lulu, School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
YANG Chongwen, School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China
LI Chengyong, School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China; Coastal Ecology Engineering Technology Research Center, Zhanjiang, Guangdong 524088, China
SUN Shengli, School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, Guangdong 524088, China; Coastal Ecology Engineering Technology Research Center, Zhanjiang, Guangdong 524088, China
YAN Xiemin, Coastal Ecology Engineering Technology Research Center, Zhanjiang, Guangdong 524088, China
SU Tiantian, Coastal Ecology Engineering Technology Research Center, Zhanjiang, Guangdong 524088, China
FENG Yanting, Coastal Ecology Engineering Technology Research Center, Zhanjiang, Guangdong 524088, China

Abstract

In order to further develop the resources of Podocarpus Nagi, the technology of ultrasonic assisted soxhlet extraction for the extraction of Podocarpus nagi was optimized by single factor and response surface tests. The physicochemical properties and fatty acid composition were analyzed. The results showed that the optimum extraction conditions were as follows: the extraction temperature 75 ℃, the solid-liquid ratio 140 （g/mL）, the extraction time 150 min and extraction solvent n-hexane. Under this condition, the yield of bamboo nut oil was 29.32%. The analysis via GC-MS method showed that nine kinds of fatty acids were detected in the bamboo nut oil, including 95.81% unsaturated fatty acids and 76.27% polyunsaturated fatty acids, which were significantly higher than monounsaturated fatty acids (19.54% ),of which linoleic acid content was the highest and was rich in oleic acid, eicosadienoic acid and eicosatrienoic acid.

Publication Date

5-28-2018

First Page

142

Last Page

147

DOI

10.13652/j.issn.1003-5788.2018.05.030

Recommended Citation

Lulu, LU; Chongwen, YANG; Chengyong, LI; Shengli, SUN; Xiemin, YAN; Tiantian, SU; and Yanting, FENG (2018) "Extraction of Podocarpus nagi nut oil and analysis of their physicochemical properties," Food and Machinery: Vol. 34: Iss. 5, Article 30.
DOI: 10.13652/j.issn.1003-5788.2018.05.030
Available at: https://www.ifoodmm.cn/journal/vol34/iss5/30

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