食品与发酵工业2024，Vol.50Issue(9)：132-138,7.DOI:10.13995/j.cnki.11-1802/ts.035582
不同硫酸浓度水解制备纤维素纳米晶及其稳定Pickering乳液研究
Preparation of cellulose nanocrystals by hydrolysis with different sulfuric acid concentrations and their stabilized Pickering emulsions
摘要
Abstract
Cellulose nanocrystals(CNCs)were extracted from pineapple peel cellulose by traditional sulfuric acid hydrolysis method.The effects of sulfuric acid solution concentration(58％,61％,and 64％,mass fraction)on particle size,morphology,potential,ther-mal stability,and stable Pickering emulsion properties of the prepared CNCs(CNCs-58％,CNCs-61％,and CNCs-64％)were investiga-ted.Results showed that with the increase of sulfuric acid solution concentration,the diameter and length of CNCs decreased gradually with increased uniformity,and the absolute potential increased gradually(-33.5 mV,-43.6 mV,and-45.7 mV),but the thermal stabil-ity decreased.Compared with CNCs-58％,CNCs-61％and CNCs-64％showed better stable Pickering emulsion properties,showing a smaller droplet size,better storage stability,and a relatively larger absolute value of potential.However,at low CNCs concentration(0.2％,mass fraction),the degree of water evolution of CNCs-64％stabilized emulsion was relatively high,which was related to the morphology of CNCs.With the increase in CNCs concentration,the water evolution degree of emulsion decreased significantly.This study provides a reference for the preparation of CNCs from fruit and vegetable peel cellulose hydrolyzed by sulfuric acid and its application in Pickering emulsions.关键词
菠萝皮渣/硫酸/纤维素纳米晶/Pickering乳液Key words
pineapple peel/sulfuric acid/cellulose nanocrystals/Pickering emulsion引用本文复制引用
王雨西,高焕秋,代笛菲,胡菽翰,罗钰湲,黄越,张宇昊,余永,戴宏杰..不同硫酸浓度水解制备纤维素纳米晶及其稳定Pickering乳液研究[J].食品与发酵工业,2024,50(9):132-138,7.基金项目
国家自然科学基金项目(31901683) （31901683）
西南大学大学生创新创业训练计划项目(S202210635018,X202210635076) （S202210635018,X202210635076）
中央高校基本科研业务费专项资金资助(SWU-KT22046) （SWU-KT22046）
