Work

Protein composition and nutritional evaluation of three Polygonatum Mill species: A comparative analysis

Year: 2025

Type: article

Abstract: Polygonatum Mill. (Asparagaceae) is an edible crop with great potential for development in China. This study focused on the analysis of protein components from Polygonatum kingianum Coll. et Hemsl (DHJ), P. cyrtonema Hua (DHHJ), and P. sibiricum Red (HJ). DHJ exhibited the lowest protein content (83.2 mg/g), the highest essential AA rate (23.6 %), the highest degree of protein hydrolysis (13.5 %), and the highest PDCAAS (0.57). DHHJ had the highest protein contents (189.8 mg/g), the lowest rate of essential AA (21.6 %), the lowest degree of protein hydrolysis (10.8 %), and the lowest PDCAAS (0.42). The first limiting AA was found to be Lys for DHHJ and Lys/Leu for DHJ and HJ. 96 carbohydrate, 61 amino acid, and 83 energy metabolism-related differential proteins were identified. Protein A0A5P1F9I9 and Q5EER7 were highly related to the digestive and nutritional properties. This study could provide an essential reference for better utilizing the Polygonatum protein component. • The AA profiles, DH and PDCAAS of DHHJ, DHJ, and HJ PC were evaluated. • The differential protein between groups was identified in comparative analysis. • The correlation coefficients between differential proteins and properties were clarified. • A0A5P1F9I9 and Q5EER7 could be a crucial reason for the different properties.

Source: Food Chemistry X

DOI: 10.1016/j.fochx.2025.102390

Authors: Chenxing Liu, Yan Cao, Yuqi Zhao, Shengmin Lu, Qile Xia

Institutions: ZheJiang Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, South China Agricultural University

Language: English

Topic: Food and Agricultural Sciences

Subfield: Food Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Zero hunger

Open Access status: gold

Estimated APC paid: $2,330