黑木耳多糖/壳聚糖可食性复合膜的制备及对鲜牛肉的保鲜效果  

Preparation of Auricularia auricular Polysaccharide/Chitosan Edible Composite Film and Its Preservative Effect on Fresh Beef

作　　者：秦丹丹 吴琼 白洋 曹慧馨 刘梦林 QIN Dandan;WU Qiong;BAI Yang;CAO Huixin;LIU Menglin(College of Food Science and Engineering,Changchun University,Changchun 130022,China)

机构地区：[1]长春大学食品科学与工程学院,吉林长春130022

出　　处：《食品科学》2021年第5期246-251,共6页Food Science

基　　金：吉林省科技发展计划项目(20190301066NY);吉林省教育厅计划项目(JJKH20200580KJ);长春大学科研培育项目(ZKQ201910);长春大学硕士研究生学术创新项目。

摘　　要：为了开发具有优良保鲜效果的可食性复合膜,以黑木耳多糖(Auricularia auricular polysaccharide,AAP)和壳聚糖(chitosan,CS)为原料,通过测定复合膜理化指标、结构和抗氧化性,并将不同材料真空包装的冷鲜牛肉于4℃条件下贮藏10 d进行保鲜实验,研究不同AAP添加量对AAP/CS可食性复合膜理化性质和冷鲜牛肉保鲜效果的影响。结果表明:AAP的添加可增加AAP/CS复合膜的厚度、密度、溶解度、溶胀度、抗拉强度和1,1-二苯基-2-三硝基苯肼自由基清除率,并降低复合膜的水蒸气透过率和透明度;通过分析复合膜的傅里叶变换红外光谱,初步推测复合膜液中AAP和CS之间发生了相互作用。与市售聚对苯二甲酸乙二酯/聚乙烯复合真空包装组及CS膜包装组相比,AAP/CS复合膜包装组牛肉感官得分和pH值更高,菌落总数和硫代巴比妥酸反应物值更低。因此,AAP/CS可食性复合膜有望在食品抑菌保鲜等方面发挥积极作用。Auricularia auricular polysaccharide(AAP)and chitosan(CS)were used as raw materials for preparing an edible composite film with good preservative effect.The impact of different AAP contents on the physicochemical properties,structure,antioxidation of AAP/CS composite films was studied as well as the influence on the preservative effect of AAP/CS composite films on fresh beef during 10 days of storage at 4℃.The results showed that the addition of AAP could increase the thickness,density,solubility,swelling degree,tensile strength and 1,1-diphenyl-2-picrylhydrazyl(DPPH)radical scavenging capacity,and reduce the water vapor transmission rate and transparency of the AAP/CS composite film.From the Fourier transform infrared spectrum of the AAP/CS composite film,it was tentatively deduced that there was an interaction between AAP and CS in the mixed solution.Compared to polyethylene terephthalate/polyethylene(PET/PE)vacuum packaging and CS film packaging,the sensory score and pH of AAP/CS packaged beef meat samples were increased,and the total number of colonies and thiobarbituric acid reactive substances(TBARS)value were decreased.Therefore,the AAP/CS edible composite film holds promise for food preservation.

关 键 词：黑木耳多糖 壳聚糖 可食性膜 鲜牛肉保鲜 

分 类 号：TS206.4[轻工技术与工程—食品科学]