轻工学报2026，Vol.41Issue(4)：44-56,13.DOI:10.12187/2026.04.004
板栗壳色素基活性包装膜的制备及其在草莓保鲜中的应用
Preparation of chestnut shell pigment-based active packaging films and their application in strawberry preservation
摘要
Abstract
[Objective]To investigate the effects of chestnut shell pigment(CSP)content on the physicochemical and functional properties of sodium alginate/carboxymethyl cellulose(SA/CMC)films and on their strawberry preservation performance.[Methods]Active packaging films were prepared via solution casting using CSP,SA,and CMC as the matrix.Their physicochemical properties,optical properties,antioxidant activity,and structure were characterized,and their preservation performance on strawberries was evaluated.[Results]The films loaded with different mass fractions of CSP exhibited significant differences in their physicochemical properties,optical properties,and antioxidant activity.CSP exhibited good compatibility with the film matrix,forming a compact three-dimensional network structure mainly through intermolecular hydrogen bonding and van der Waals forces,which in turn increased the film thickness,opacity,tensile strength,and water vapor transmission rate,and improved the CO2/O2 transmission ratio.Among them,the film containing 3%CSP(SA/CMC/CSP-3)exhibited the best overall performance,with a tensile strength of 32.79 MPa,an elongation at break of 31.40%,an oxygen transmission rate of 18.79×10-7 cm3/(m2·24 h·Pa),a carbon dioxide transmission rate of 1.51×10-5 cm3/(m2·24 h·Pa),and a CO2/O2 transmission ratio of 8.04∶1,making it more suitable for packaging fruits and vegetables with high respiration rates.In addition,the incorporation of CSP significantly enhanced the UV-blocking ability and antioxidant capacity of the films.The DPPH radical scavenging rates of SA/CMC/CSP-3 and SA/CMC/CSP-5 were 90.17%and 93.67%,respectively,and the ABTS+radical scavenging rates were 81.40%and 98.58%,respectively.Compared with strawberries packaged with the SA/CMC film,those packaged with SA/CMC/CSP-3 showed reductions in weight loss and decay rate of 2.0%and 17.0%,respectively,on the 7th day of storage.[Conclusion]The SA/CMC/CSP-3 film exhibited good physicochemical and optical properties and antioxidant activity,effectively delaying moisture loss and spoilage in strawberries and demonstrating a good preservation effect.关键词
板栗壳色素/海藻酸钠/活性包装膜/理化特性/功能特性/草莓保鲜Key words
chestnut shell pigment/sodium alginate/active packaging film/physicochemical property/functional property/strawberry preservation分类
轻工纺织引用本文复制引用
刘孟莹,薛佳琳,槐笠翔,肖雨婷,郭刚,崔亚杰,王浩燃,宋丽军..板栗壳色素基活性包装膜的制备及其在草莓保鲜中的应用[J].轻工学报,2026,41(4):44-56,13.基金项目
河北省重点研发计划项目(21326304D) （21326304D）
