食品工业科技2024，Vol.45Issue(13)：9-16,8.DOI:10.13386/j.issn1002-0306.2023090280
亚硫酸钠-壳聚糖微粒对明胶膜结构和性能的影响
Effect of Chitosan Particles Loaded with Sodium Sulfite on the Structure and Properties of Gelatin Films
摘要
Abstract
The study aimed to investigate the influence of chitosan particles loaded with sodium sulfate on the structure and properties of the gelatin films by using gelatin as the film-forming matrix and adding chitosan particles loaded with sodium sulfate to prepare composite gelatin films.The thickness,hydration properties,barrier properties,mechanical properties,optical properties,thermal stability and oxidation resistance of the gelatin films were measured,and its structure was characterized.The results showed that the addition of chitosan particles loaded with sodium sulfate significantly decreased the thickness(P＜0.05),significantly increased the swelling rate(P＜0.05),decreased the dissolution rate from 79.41％to 18.21％,increased the tensile strength from 79.10 MPa to 128.96 MPa,increased the opacity from 3.75 to 6.77,improved the thermal stability,and increased the DPPH radical scavenging capacity from 14.41％to 65.05％of the gelatin films.However,there were no significant changes in the water vapor permeability and elongation at break of the gelatin films.In addition,there was a high compatibility between chitosan particles loaded with sodium sulfate and gelatin molecules,and the addition of chitosan particles loaded with sodium sulfate changed the structure of gelatin films.In conclusion,the incorporation of chitosan particles loaded with sodium sulfate can change the structure of gelatin films to some extent and improve the properties of gelatin films.This study provides theoretical guidance and data reference for the preparation and application of antioxidant composite gelatin films.关键词
明胶/壳聚糖/亚硫酸钠/微粒/复合明胶膜Key words
gelatin/chitosan/sodium sulfite/particles/composite gelatin films分类
轻工纺织引用本文复制引用
黄燃,鲍士宝..亚硫酸钠-壳聚糖微粒对明胶膜结构和性能的影响[J].食品工业科技,2024,45(13):9-16,8.基金项目
烹饪科学四川省高等学校重点实验室开放基金项目(PRKX2020Z20). （PRKX2020Z20）
