Title :
Research on preparation of blend packaging films and its application in strawberry preservation
Author :
Zhang, Yun ; Wang, Liqiang ; Lu, Lixin
Author_Institution :
Dept. of Packaging Eng., Jiangnan Univ., Wuxi, China
Abstract :
In this paper, pullulan, gelatin and chitosan were used as film-forming materials. Through the orthogonal experiment, oxygen transmission rate and water vapor transmission rate of the composite film of nine ratios were measured, and the best ratio of these three components was obtained. In 100mL 1% acetic acid solution, the best formula of the composite membrane is pullulan 2.5g, gelatin 1.5g and chitosan 1.25g. Finally, the composite coating liquid of the best ratio was compared with the one-component coating liquid, by measuring the decay index, rot rate, weightlessness rate and storage period of strawberries to reveal the effect of the composite coating fluid. The results show that the effect of preservation of composite membrane is better than that of the corresponding one-component membrane and PE.
Keywords :
food preservation; food products; packaging; acetic acid solution; blend packaging film; chitosan; decay index; film-forming material; gelatin; one-component coating liquid; oxygen transmission rate; pullulan; rot rate; storage period; strawberry preservation; water vapor transmission rate; weightlessness rate; Coatings; Compounds; Films; Indexes; Packaging; Pipelines; Plastics; chitosan; edible films; fresh; gelatin; pullulan; strawberry;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5965991
