琯溪蜜柚未成熟果实果胶理化功能特性及其在酸乳饮料中的应用性能研究  

Physicochemical and functional properties of pectin from unripe Guanxi honey pomelo and its application in yogurt drinks

作　　者：巩雪梅 黄淑安 杨远帆[1,2,3] 李利君 胡阳[1,2,3] 何凡 倪辉[1,2,3,4] GONG Xuemei;HUANG Shu’an;YANG Yuanfan;LI Lijun;HU Yang;HE Fan;NI Hui(College of Ocean Food and Biological Engineering,Jimei University,Xiamen 361021;Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering,Xiamen 361021;Research Center of Food Biotechnology of Xiamen City,Xiamen 361021;Xiamen Ocean Vocational College,Xiamen 361100)

机构地区：[1]集美大学海洋食品与生物工程学院,厦门361021 [2]福建省食品微生物与酶工程重点实验室,厦门361021 [3]厦门市食品生物工程技术研究中心,厦门361021 [4]厦门海洋职业技术学院,厦门361100

出　　处：《中国食品添加剂》2025年第3期55-63,共9页China Food Additives

摘　　要：以大宗种植的柑橘类水果--琯溪蜜柚未成熟果实的果胶(PGP)为对象,以三种商品果胶为对照,分析比较未成熟琯溪蜜柚果实中提取的果胶理化性质及功能特性。结果表明,琯溪蜜柚未成熟果实的果胶干燥减重为5.96%、半乳糖醛酸含量为72.04%,符合国家标准;酯化度为69.54%,属于高酯果胶,且具有良好的黏度、持水性和乳化特性。PGP应用于酸乳饮料中时,在增加酸乳饮料黏度、稳定性和防止贮藏析水方面的性能明显优于三种商品果胶。综合比较黏度、稳定性和贮藏析水性等指标,PGP在酸乳饮料中的适宜添加量约为0.4%。综上,琯溪蜜柚未成熟果实中提取的果胶具有良好的应用性能,为琯溪蜜柚未成熟果实的综合利用及开拓果胶生产原料资源提供了重要参考。This study focused on pectin extraction from the unripe Guanxi honey pomelo( PGP) and with three commercial pectins serving as controls,the physicochemical properties and functional characteristics of the extracted pectin were analyzed and compared.The results showed that PGP met the national standard with a dried weight loss of 5.96% and galacturonic acid content of 72.04%.Its degree of esterification was found to be 69.54%,classifying it as high-ester pectin,which demonstrated excellent viscosity,water-holding capacity,and emulsifying properties.When PGP was applied to yogurt drinks,its performance in increasing the viscosity and stability of the drinks and preventing storage-related syneresis was significantly superior compared to the three commercial pectin products.Based on a comprehensive comparison of viscosity,stability,and storage syneresis,it was determined that the optimal addition amount of PGP in yogurt drinks was approximately 0.4%.In summary,the PGP exhibited good application performance,providing important reference for the comprehensive utilization of unripe Guanxi honey pomelo and the exploration of pectin production resources.

关 键 词：琯溪蜜柚 未成熟果实 果胶 稳定剂 酸乳饮料 

分 类 号：TS209[轻工技术与工程—食品科学]