响应面法优化复合涂膜对刮皮生姜的护色工艺  

Optimization of Composite Coating Film for Optimal Color Protection Process of Scraped Ginger by Response Surface Methodology

作　　者：佟沫儒 李培培 张伟 俞浩[5] 吴德玲 TONG Moru;LI Peipei;ZHANG Wei;YU Hao;WU Deling(College of Pharmacy,Anhui University of Chinese Medicine,Hefei 230012,China;Anhui Province Key Laboratory of Traditional Chinese Medicine Decoction Pieces of New Manufacturing Technology,Hefei 230012,China;Anhui University of Traditional Chinese Medicine,Traditional Chinese Medicine Concoction Heritage Base of the State Administration of Traditional Chinese Medicine,Hefei 230012,China;Anhui Collaborative Innovation Centre for Quality Enhancement of Taoist Chinese Materia Medica,Hefei 230012,China;Bozhou University,Bozhou 236800,China)

机构地区：[1]安徽中医药大学药学院,安徽合肥230012 [2]中药饮片制造新技术安徽省重点实验室,安徽合肥230012 [3]安徽中医药大学国家中医药管理局中药炮制传承基地,安徽合肥230012 [4]安徽道地中药材品质提升协同创新中心,安徽合肥230012 [5]亳州学院,安徽亳州236800

出　　处：《食品工业科技》2023年第24期175-182,共8页Science and Technology of Food Industry

基　　金：潜山市医药健康产业发展技术研究中心项目(RH2200000046)。

摘　　要：目的:通过研究壳聚糖、海藻酸钠、卡拉胶三种涂膜剂对刮皮生姜护色效果的影响,筛选刮皮生姜的最佳复合护色涂膜组合抑制刮皮生姜在加工过程发生褐变。方法:以刮皮生姜为原料,褐变度、失重率、总酚含量在15 d内的变化值为指标,在单因素实验基础上,选取壳聚糖、海藻酸钠、卡拉胶三种护色剂为自变量,褐变度为响应值,采用Box-Behnken中心组合实验和响应面分析法,研究自变量交互作用对刮皮生姜褐变的影响,确定抑制刮皮生姜褐变的最佳复合护色涂膜工艺。结果:复合涂膜剂的最佳配方为:壳聚糖为1.399%、海藻酸钠为1.783%、卡拉胶为1.311%,在该护色条件下刮皮生姜储藏15 d的褐变度为0.232,与响应面预测值(0.230)接近;测得姜辣素含量为1.62%,总黄酮含量1.83%,总酚含量53.88μg/g,失重率0.89%,DPPH自由基清除能力为442.21μg Trolox/g,均与对照组有显著性差异(P<0.05)。结论:壳聚糖、海藻酸钠、卡拉胶三种涂膜剂组合制备的复合涂膜护色效果较好,不仅在一定程度上可以抑制生姜发生褐变及失水,同时也保留了刮皮生姜在储藏期间的营养品质。Objective:The effect of three coating agents,namely chitosan,sodium alginate,and carrageenan,on the color protection and preservation of peeled ginger was investigated to screen the best combination of color protection coating for scraped ginger to inhibit the browning of scraped ginger during processing.Methods:Based on a single-factor test,three color protectors,namely chitosan,sodium alginate,and carrageenan,were selected as independent variables and the browning degree was used as the response value,and the Box-Behnken central combination experiment and response surface analysis were used to investigate the effects of the interaction of independent variables on the browning of scraped ginger.The optimum composite color protection coating process for the inhibition of browning of peeled ginger was determined.Results:The optimum formulation of the composite coating agent was 1.399% chitosan,1.783% sodium alginate and 1.311%carrageenan.The browning of scraped ginger stored for 15 days under this color protection condition was 0.232,which was close to the response surface prediction(2.230).The measured curcumin content was 1.62%,total flavonoid content was 1.83%,total phenolic content 53.88μg/g,weight loss 0.89% and DPPH free radical scavenging capacity 442.21μg Trolox/g,all had significantly different compared with the control(P<0.05).Conclusion:The combination of three coating agents,chitosan,sodium alginate and carrageenan,produced a composite coating film with good color protection,which not only inhibits browning and water loss in ginger to a certain extent,but also preserves the nutritional quality of scraped ginger during storage.

关 键 词：刮皮生姜 褐变 涂膜护色 壳聚糖 海藻酸钠 卡拉胶 配方优化 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]