Effects of pulsed electric field-assisted treatment on the extraction, antioxidant activity and structure of naringin
文献类型： 外文期刊
作者： Niu, Debao 1 ; Ren, Er -Fang 4 ; Li, Jian 1 ; Zeng, Xin-An 1 ; Li, Si -Lun 1 ;
作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510641, Peoples R China
2.Guangxi Univ, Coll Light Ind & Food Engn, Nanning 530004, Peoples R China
3.Overseas Expertise Intro Ctr Discipline Innovat F, Guangzhou, Peoples R China
4.Guangxi Subtrop Crops Res Inst, Nanning 530001, Peoples R China
关键词： Naringin; Pulsed electric field; Extraction; Antioxidant activity; Structure
期刊名称：SEPARATION AND PURIFICATION TECHNOLOGY （ 影响因子：5.774； 五年影响因子：5.257 ）
ISSN： 1383-5866
年卷期： 2021 年 265 卷
页码：
收录情况： SCI
摘要： Naringin is a bioactive compound that exists abundantly in the by-product of citrus fruits processing. The effects of various pulsed electric field (PEF) treatments (2?10 kV/cm, 10?50 pulses) on the extraction yield of naringin from the white capsule of pomelo peel were investigated. Results showed that PEF treatment could significantly enhance the extraction yield of naringin, in particular at the electric field intensity of 4 kV/cm and pulses of 30, the extraction yield was increased by 20% compared with non-PEF treatment. Moreover, the antioxidant activity of naringin was assessed by the assay of DPPH radical scavenging rate (RSA). Results showed that different PEF treatments had diverse effects on RSA values, which may be attributed to the changes in the structure of naringin under PEF treatments. This was confirmed by the results from scanning electron microscope, Fourier transform infrared spectroscopy, and nuclear magnetic resonance spectroscopy, showing that PEF treatment changed the conformation of naringin without its degradation. These findings suggested that PEF treatment of appropriate intensity was a promising method to enhance the extraction of naringin from the white capsule of pomelo peel, and provided a basis for modifying the physicochemical properties of naringin in the future.
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