可食性紫胶包装膜成膜特性及应用研究

›› 2003, Vol. 23 ›› Issue (2): 60-64,7.

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STUDY ON FORMING PROPERTY OF EDIBLE LAC FILM AND APPLICATIONS THEREOF

TANG Li ying¹, LIU Yue ming², ZHAO Hong¹, CHEN Jun¹, CAI Jing¹

1. Research Institute of Resources Insect, CAF, Kunming 650216, China;2. Modern Agriculture Engineering College, Kunming University of Science and Technology, Kunming 650224, China

Received:2002-08-21 Revised:1900-01-01 Online:2003-06-30 Published:2003-06-30

Abstract

Abstract: Forming property of edible lac film which was made from lac and starch in soda solution was studied. Results showed that film obtained by different proportions of Chinese lac and No.4 lac has little effect on fold resis tance, solvent swell, water vapor permeability, tensile strength and elongation.With the increase of lac dosage, solvent swell and water vapor permeability decreased first followed by insignificant change, while tensile strength increased.With the increase of glycerin dosage, solvent swell and tensile strength decreased, but elongation increased.Dosage of epoxy chloreopropane could contribute to the properties of the film a certain effect.Edible film which was obtained by drying at 65℃ pocessed the best properties.Compared with the films that did not contain lac, tensile strength and water resistance were increased remarkably.The treatment of mango coated by this film could lower browning rate obviously and restrain the respiration of mango.During storage, the loss rates of V_C, total acid and water of coated mango were lower than the control samples.

Key words: starch, lac, edible film

CLC Number:

S789
TS206

TANG Li ying;LIU Yue ming;ZHAO Hong;CHEN Jun;CAI Jing. STUDY ON FORMING PROPERTY OF EDIBLE LAC FILM AND APPLICATIONS THEREOF[J]. , 2003, 23(2): 60-64,7.

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STUDY ON FORMING PROPERTY OF EDIBLE LAC FILM AND APPLICATIONS THEREOF

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