Characterization and correlation of engineering properties with microstructure in peanuts:A microscopic to macroscopic analysis  

作　　者：Fei Xiang Zhenyuan Li Yichen Zheng Caixia Ding Benu Adhikari Xiaojie Ma Xuebing Xu Jinjin Zhu Bello Zaki Abubakar Aimin Shi Hui Hu Qiang Wang 

机构地区：[1]Institute of Food Science and Technology,Chinese Academy of Agricultural Sciences/Comprehensive Utilization Laboratory of Cereal and Oil Processing,Ministry of Agriculture and Rural Affairs,Beijing 100193,China [2]Wilmar(Shanghai)Biotechnology Research&Development Center Co.,Ltd.,Shanghai 200137,China [3]School of Science,RMIT University,Melbourne 3083,VIC,Australia [4]School of Food Science and Engineering,Nanjing University of Finance and Economics/Jiangsu Modern Food Circulation and Safety Collaborative Innovation Center,Nanjing 210023,China [5]College of Food Science and Pharmacy,Xinjiang Agricultural University,Urumqi 830052,China [6]Department of Agricultural Extension and Rural Development,Faculty of Agriculture,Usmanu Danfodiyo University,Sokoto 840101,Nigeria

出　　处：《Journal of Integrative Agriculture》2025年第1期339-352,共14页农业科学学报(英文版)

基　　金：supported by the National Key R&D Program of China(2021YFD2100400,2023YFE0104900);Xinjiang Agriculture Research System-Oil Crop Research System,China(XJARS-05);Taishan Industrial Experts Programme,China(tscx202306075);the Scientific and Technological Assistance Projects to Developing Countries,China(KY202201003);the Agricultural Science and Technology Innovation Program,Institute of Food Science and Technology,Chinese Academy of Agricultural Sciences(CAAS-ASTIP-2024-IFST);The authors are grateful for the financial support from the Arawana Charity Foundation,China.

摘　　要：Peanut varieties are diverse globally,with their characters and nutrition determining the product quality.However,the comparative analysis and statistical analysis of key quality indicators for peanut kernels across the world remains relatively limited,impeding the comprehensive evaluation of peanut quality and hindering the industry development on a global scale.This study aimed to compare and analyze the apparent morphology,microstructure,single-cell structure,engineering and mechanical properties,as well as major nutrient contents of peanut kernels from 10 different cultivars representing major peanut-producing countries.The surface and cross-section microstructure of the peanut kernels exhibited a dense“blocky”appearance with a distinct cellular structure.The lipid droplets were predominantly spherical with a regular distribution within the cells.The single-cell structure of the kernels from these 10 peanut cultivars demonstrated varying morphologies and dimensions,which exhibited correlations with their mechanical and engineering properties.Furthermore,the mass loss versus temperature profiles of the peanut kernels revealed five distinct stages,corresponding to moisture loss,volatile loss,protein denaturation,and the degradation of various biomacromolecules.Variations were also observed in the lipid,protein,and sucrose contents,texture,bulk density,true density,porosity,geometric mean diameter,and sphericity among the diferent peanut varieties.This study establishes relationships and correlations among microstructure,engineering properties,and nutritional composition of commonly grown peanut varieties in major peanut-processing countries.The findings provide valuable insights into peanut quality evaluation,empowering the peanut industry to enhance their processing and product development efforts.

关 键 词：peanut kernels apparent morphology MICROSTRUCTURE engineering properties mechanical properties 

分 类 号：S565.2[农业科学—作物学]