明胶-葡萄皮红色素基可食性油墨的制备及应用  

Preparation and application of gelatin-rape skin red pigment based edible inks

作　　者：刘维维 马良[1,2] 张宇昊[1,2] 王洪霞[1,2] LIU Weiwei;MA Liang;ZHANG Yuhao;WANG Hongxia(College of Food Science,Southwest University,Chongqing 400715,China;Key Laboratory of Luminescence Analysis and Molecular Sensing,Southwest University,Ministry of Education,Chongqing 400715,China)

机构地区：[1]西南大学食品科学学院,重庆400715 [2]西南大学,发光分析和分子传感教育部重点实验室,重庆400715

出　　处：《食品与发酵工业》2022年第18期121-127,共7页Food and Fermentation Industries

基　　金：重庆市自然科学基金面上项目(cstc2020jcyj-msxmX0995);中央高校基本科研业务费专项基金(SWU119069);国家自然科学基金面上项目(31671881,31972102)。

摘　　要：该研究以明胶为连接料、天然提取物(葡萄皮红色素)仅为色素,通过高速球磨制备了一系列可食性油墨。利用红外光谱、粒度仪、差示扫描量热仪、流变仪等手段探究可食性油墨的理化性质,并进行机理解析和印刷潜力分析。结果表明,明胶、葡萄皮红色素之间的作用主要依靠氢键,从而形成稳定的可食性油墨结构;适当增加葡萄皮红色素浓度可有效改善油墨的色彩、分散性和热稳定性;流变学研究表明,该可食性油墨为假塑性流体且具有剪切稀化现象,油墨具有优良的触变性(恢复率88.7%);通过对比油墨的丝网印刷效果,发现该可食性油墨适合丝网印刷,可以替代部分传统油墨直接印刷在包材上,在食品装饰中具有一定的潜力。该研究对可食性油墨在食品包装领域和食品印刷领域的应用具有一定的参考作用。With the improvement of people′s living standards,environmentally friendly,safe edible inks gradually attract people′s attention.A series of edible inks were prepared by high-speed ball milling with gelatin as a binder and natural extract(grape skin red pigment)as a pigment.In this study,the physicochemical properties of edible ink were studied by means of infrared spectroscopy,particle size analyzer,differential scanning calorimeter and rheometer,for analyzing mechanism and printing potential.The results showed that the interaction between gelatin and grape skin red pigment mainly depended on hydrogen bond,thus forming stable edible ink structure.The increase of grape skin red pigment content could effectively improve color,dispersion and thermal stability of inks.The results of rheological performance showed that edible inks were pseudoplastic fluids and had shear thinning properties with excellent thixotropy(recovery rate 88.7%).After practical application,it was found that the edible ink was suitable for screen printing,and it could partially replace the traditional ink to directly print on packaging materials.Therefore,it had a certain potential in food decoration.This study has a certain reference value for the application of edible ink in the field of food packaging and food printing.

关 键 词：明胶 葡萄皮红色素 可食性油墨 流变学 丝网印刷 

分 类 号：TS10[轻工技术与工程—纺织工程] TQ638[轻工技术与工程—纺织科学与工程]