Research Progress on Composition, Extraction and Physiological Activity of Pea Polyphenols

Pea polyphenols are secondary metabolites widely existing in peas, mainly including flavonoids (populin, kaempferol, quercetin), phenolic acids (p-coumaric acid, erucic acid, ferulic acid) and tannins (catechins). The content, species and distribution of pea polyphenols depend on pea varieties, but they are affected by environment and inducing factors in the process of their growth. The extraction method of pea polyphenols has gradually changed from inefficient solvent extraction to microwave extraction technology with high efficiency and high extraction rate. The research on its physiological activity has gradually developed to the molecular and cellular level, and its application scope has gradually expanded to meat products, aquatic products, flour products and other industries. In order to further understand the chemical properties and potential utilization value of pea polyphenols, this paper expounds in detail the distribution of pea polyphenols, the factors affecting the types and content of pea polyphenols, the separation and extraction, physiological activity and its application in food industry, in order to provide a theoretical basis for the development and research of pea polyphenols.