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Effect of extraction technique on chemical compositions and antioxidant activities of freeze-dried green pepper

文献类型： 外文期刊

作者： Zhang, Chaohua 1 ; Gu, Fenglin 2 ; Hu, Weicheng 6 ; Wu, Guiping 3 ; Chen, Weijun 1 ; Dong, Conghui 3 ; Niu, Zhiqiang 6 ;

作者机构： 1.Hainan Univ, Coll Food Sci & Engn, Haikou, Peoples R China

2.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya, Peoples R China

3.Chinese Acad Trop Agr Sci, Spice & Beverage Res Inst, Wanning, Peoples R China

4.Hainan Key Lab Biosafety Monitoring & Mol Breeding, Sanya, Peoples R China

5.Key Lab Proc Suitabil & Qual Control Special Trop, Wanning, Peoples R China

6.Huaiyin Normal Univ, Jiangsu Collaborat Innovat Ctr Reg Modern Agr & En, Huaian, Peoples R China

关键词： freeze-dried pepper; pepper oleoresin; ultrasonic-microwave extraction; antioxidant activity; extraction kinetics

期刊名称：FRONTIERS IN NUTRITION （ 影响因子：6.59； 五年影响因子：6.873 ）

ISSN： 2296-861X

年卷期： 2022 年 9 卷

页码：

收录情况： SCI

摘要： In this study, the yield, content of piperine, and antioxidant activity of pepper oleoresin obtained with the methods of maceration, ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE), and ultrasound-MAE (UMAE) were analyzed, and the microstructure of pepper residue was observed. For the yield and piperine content, the UMAE method had the best extraction capacity among the four methods. While, the oleoresin obtained with maceration had the highest total phenolic content, and the antioxidant activity of the oleoresin obtained by maceration was higher than that of the extracts acquired by UAE, MAE, and UMAE, and a high positive correlation was observed between the antioxidant activity and total phenolic content of the oleoresin obtained by these extraction methods. The ideal parameters for UMAE were an 80-mesh particle size and a 1 g/10 mL solid-liquid ratio. The kinetic parameters and models of the UMAE extraction process were also compared using first- and second-order models. The second-order kinetic equation with the lowest root mean square deviation and highest adjusted correlation coefficient proved to be more suitable for describing the extraction kinetics of pepper oleoresin. This study showed that UMAE is a fast, efficient, and cost-effective technique for the extraction of green pepper oleoresin.

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