Analysis and Identification of Volatile Profiles in Qinghai Flaxseed Oil by SPME-GC-MS

HAN Yuze; WANG Xingrui; LI Yingxia; WANG Shuzhen; CHEN Yunyun; WANG Jinying

doi:10.13386/j.issn1002-0306.2021010089

Volume 42 Issue 20

Oct. 2021

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Science and Technology of Food Industry > 2021 > 42(20): 255-260. > DOI: 10.13386/j.issn1002-0306.2021010089

HAN Yuze, WANG Xingrui, LI Yingxia, et al. Analysis and Identification of Volatile Profiles in Qinghai Flaxseed Oil by SPME-GC-MS[J]. Science and Technology of Food Industry, 2021, 42(20): 255−260. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021010089.

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Analysis and Identification of Volatile Profiles in Qinghai Flaxseed Oil by SPME-GC-MS

1.
College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
2.
State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China

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Received Date: January 14, 2021
Available Online: August 15, 2021

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Abstract

Abstract

Flaxseed oil was prepared from 40 kinds of flaxseed of different region in Qinghai by soxhlet extraction. And the volatile profiles were analyzed by headspace sampling combined with GC-MS method. In order to obtain the best solid phase microextraction conditions and GC-MS condition, the stirring rate, extraction temperature, equilibrium time, extraction time, desorption time and heating program were optimized. The results indicated that when using DVB/CAR/PDMS fiber, the optimum extraction conditions of the volatile compounds were: 20 min equilibrium time, 40 min adsorption time at 80 ℃ , stirring intensity of 400 r/min, and 5 min desorption time. Under this extraction condition, a total of 58 volatile components of 40 kinds of flaxseeds oil in Qinghai could be detected, including 12 aldehydes, 8 acids, 9 alcohols, 2 ketones, 5 esters, 13 hydrocarbon compounds, 3 heterocycles and 6 other types, which achieved a good chromatographic separation. According to cluster analysis, aldehydes were the main volatile components that distinguished flaxseed oil samples, which would provide a theoretical basis for the quality identification and development of flaxseed oil.
- flaxseeds oil,
- volatile components,
- headspace solid phase microextraction,
- GC-MS

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References

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