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| Comparison of different extraction methods of phenolic compounds in extra virgin olive oil |
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| DOI：10.12166/j.zgyz.1003-7969/2020.01.022 |
| KeyWord:extra virgin olive oil phenolic compound liquid-liquid extraction solid-phase extraction liquid-liquid microextraction |
| FundProject:省部共建国家重点实验室自主设计课题（ZZ1809）；浙江省农业科学院B类学科建设项目；浙江检验检疫局重点科研计划项目（2017-ZKZ-02）；浙江省农业科学院国际合作项目 |
| Author Name | Affiliation | | LI Xue
ZHANG Yu
WANG Junhong ZHU Zuoyi
LI Li
ZHANG Guoxiang GUAN Rongfa AYTON Jamie
LI Wen
WANG Wei
LIU Jun | 1.Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
2.Key Laboratory of Information Traceability for Agricultural Products, Ministry of Agriculture, Hangzhou 310021, China
3.International Joint Laboratory for Quality and Nutrition of Woody Oils, Hangzhou 310021, China
4.Hangzhou Entry Exit Inspection and Quarantine Bureau, Hangzhou 310012, China
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| Abstract: |
| The phenolic compounds in extra virgin olive oil were extracted by liquid-liquid extraction (LLE), solid-phase extraction (SPE) and liquid-liquid microextraction (LLME), respectively. The composition of phenolic compounds was investigated by ultra performance liquid chromatography coupled with high resolution mass spectrometry (UPLC-HRMS),and the total content of phenols (TCP) was determined by Folin-Ciocalteus colorimetric method to compare the extraction officiency of the three methods. The results showed that a total of 40 phenolic compounds were detected from the extra virgin olive oil by the three methods, among which 33 phenolic compounds were extracted by LLE, 20 phenolic compounds were extracted by SPE, and 15 phenolic compounds were extracted by LLME. The type of phenolic compounds extracted by LLE was significantly higher than that by the other two methods. The TCP extracted by LLE was 2.9 and 3.7 times of that by SPE and LLME, respectively. The extraction efficiency of phenolic compounds by LLE was significantly superior to that by SPE and LLME. However, considering the experimental processes of the three methods, LLME had the advantages of simple operation, small workload, short analytic time, low amount of organic solvent, little environmental pollution and low cost, so LLME had potential for further optimization to extract the phenolic compound from extra virgin olive oil. |
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