香芹酚/明胶/聚乙烯醇纤维膜的制备及其抗氧化性能  

Fabrication and antioxidant properties of carvacrol/gelatin/polyvinyl alcohol fibrous membranes

作　　者：刘毅 李柏良 高宝善 施学浅 胡君 舒祖菊[1] LIU Yi;LI Boliang;GAO Baoshan;SHI Xueqian;HU Jun;SHU Zuju(Textile Engineering and Academy of Art,Anhui Agricultural University,Hefei 230036,Anhui,China;Anhui Qige Packaging Materials Co.,Ltd.,Huainan 232221,Anhui,China)

机构地区：[1]安徽农业大学轻纺工程与艺术学院,安徽合肥230036 [2]安徽启格包装材料有限公司,安徽淮南232221

出　　处：《精细化工》2023年第9期1910-1918,共9页Fine Chemicals

基　　金：安徽省自然科学基金面上项目(2008085MC84);安徽农业大学大学生创新创业训练计划项目(X202210364581);企业委托项目(KJ2021124)。

摘　　要：为了实现香芹酚(CAR)的缓释,减缓食品的氧化变质进程,以明胶(GEL)和聚乙烯醇(PVA)为基材,CAR为抗氧化剂,采用静电纺丝法制备了CAR/GEL/PVA纤维膜。通过SEM、FTIR、XRD对纤维膜进行了表征,测定了纤维膜的抗氧化活性、缓释性能和橄榄油的过氧化值,并考察了CAR添加量(以纺丝溶液中GEL的质量为基准)对纤维膜结构和性能的影响。结果表明,随着CAR添加量的增加,纺丝溶液的黏度增加,电导率下降,制备的纤维膜形貌由直径较小且分布均匀转变为直径较大且分布不均匀,从而影响纤维膜的力学性能、抗氧化性能和缓释效果。Ritger-peppas和Weibull模型能较好地拟合缓释过程,其相关系数接近于1,释放规律遵循Fickian扩散机制,且当CAR添加量为5%时,纤维膜的缓释效果最佳。高CAR添加量的CAR/GEL/PVA纤维膜能在油脂类食物中缓慢释放,具有较强的抗氧化活性。在48 h时,CAR添加量为20%的纤维膜的2,2-联苯基-1-苦基肼基自由基清除率为82.4%,比未添加CAR的纤维膜提升50.4%,可以有效降低橄榄油的过氧化值。In order to achieve the sustained-release of carvacrol(CAR)and slow down the oxidative deterioration process in food,CAR/GEL/PVA fibrous membranes were prepared from gelatin(GEL),polyvinyl alcohol(PVA)and CAR via electrospinning,and characterized by SEM,FTIR and XRD.The antioxidant activity,slow-release performance and peroxide value of olive oil were analyzed,while the effect of CAR addition amount(based on the mass of GEL in spinning solution)on the structure and properties of the fibrous membranes was further investigated.The results showed that with the increase of CAR addition amount,the viscosity of the spinning solution increased and the electrical conductivity decreased,while the morphology of the prepared fibrous membrane changed from a smaller size with uniform distribution to a larger one with uneven distribution,thus affecting the mechanical properties,antioxidant activities and slow-release performance of the fibrous membranes.Ritger-peppas and Weibull models could fit the slow-release process well with a correlation coefficient close to 1,while the release followed Fickian diffusion mechanism.When 5%CAR was added,CAR/GEL/PVA fibrous membrane exhibited the best slow-release effect.At 48 h,The 2,2-biphenyl-1-picrylhydrazyl radical scavenging rate of the fibrous membrane with 20%CAR addition was 82.4%,50.4%higher than that without CAR addition,and effectively reduced the peroxide value of olive oil.

关 键 词：香芹酚 静电纺丝 缓释性能 抗氧化活性 功能材料 

分 类 号：TB484[一般工业技术—包装工程] TS206.4[轻工技术与工程—食品科学]