GC Determination of α-Linolenate in Nuts

doi:10.7506/spkx1002-6630-200924080

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (24): 359-361.doi: 10.7506/spkx1002-6630-200924080

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GC Determination of α-Linolenate in Nuts

YUE Qiao-yun，ZHANG Jing，LIU Gong-yuan，ZHANG Peng-jie，YANG Fang，LI Rong，ZHENG Lei-qing

Zhongshan Entry-Exit Inspection and Quarantine Bureau, Zhongshan 528403, China

Received:2008-12-31 Revised:2009-07-06 Online:2009-12-15 Published:2010-12-29
Contact: YUE Qiao-yun， E-mail:yueqy@zs.gdciq.gov.cn,qy_yue@yahoo.com.cn

Abstract

Abstract:

α-Linolenate was extracted with n-hexane from nuts, and methylified with 2 mol/L KOH-methnoal solution. Then content of α-methyl linolenate, which could be translated to the content of α-linolenate, was quantified with gas chromatography using HP-Wax column (30 m×0.25 mm, 0.5 μm). The retention time for α-methyl linolenate was 6.325 min. This method was appicable in a linear range of 0.02－10.00 mg/ml with the correlation coefficient at 0.99924 and the average recovery for α - linolenate at 95.4%－ 102.3%.

Key words: &alpha, -linolenate, &alpha, -methyl linolenate, nuts, gas chromatography

CLC Number:

TS207.3

YUE Qiao-yun，ZHANG Jing，LIU Gong-yuan，ZHANG Peng-jie，YANG Fang，LI Rong，ZHENG Lei-qing. GC Determination of α-Linolenate in Nuts[J]. FOOD SCIENCE, 2009, 30(24): 359-361.

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GC Determination of α-Linolenate in Nuts

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