Yuxi Langa,b, Ningxuan Gaoa, Zhihuan Zanga, Xianjun Menga, Yang Linc, Shufang Yangd, Yiyun Yangd, Zhufeng Jind, Bin Lia,*
a College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
b College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
c Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou 310014, China
d Zhejiang Lanmei Technology Co., Ltd., Zhuji 311800, China
*Corresponding author.
Abstract
Polyphenols are widely recognized as the effective antioxidants, which are divided into flavonoids, phenolic acids, stilbenes, lignans, tannins and so on. They could regulate internal functions and protect the body from diseases related to oxidative damage. Due to the fact that their antioxidant capacity is influenced by the structure, stability and bioavailability, the detection of their bioactivity should be considered comprehensively. Currently, the methods for measuring the antioxidant capacity of phenolic compounds are divided into chemical, cell-based and in vivo assays. The chemical assays include 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), ferric reducing /antioxidant power (FRAP), oxygen radical absorbance capacity (ORAC), peroxyl radical scavenging capacity (PSC), which are rapid identification method, but their reaction mechanism has a great gap with the internal body response. The cell-based assays are more consistent with biological reaction, but still do not take the bioavailability into consideration. The in vivo assays, which commonly utilized Caenorhabditis elegans or rats as models, are more representative, but these methods are more complex and spend longer. This review summarizes the antioxidant evaluation methods of phenolic compounds and discusses their advantages and limitations comparatively, which could help discriminate and select the appropriate assay in the actual operation, and facilitate the development of comprehensive approaches as well.
LANG Y X, GAO N X, ZANG Z H, et al. Classification and antioxidant assays of polyphenols: a review[J]. Journal of Future Foods, 2024, 4(3): 193-204. DOI:10.1016/j.jfutfo.2023.07.002.
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