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The Effect of Nano Materials On Edible Coating and Films’ Improvement
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Abstract: The aim of this study was to improve edible coating and films as have a high potential to carry active ingredients such as nano materials on quality of fruit and vegetables. the substances used in this experiment were ,Chitosan-Thyamol /(TPP)Tripolyphosphate(B) ,Gelatin- Coconut Fiber/titanium dioxide(TiO2)(C),Chitosan-Methyl Cellulose / Silica(SiO2)(D),Gelatin–Chitosan/ (Ag / ZnO) (E),Gelatin- Anthocyanin / kafirin (F) comperd with edible coating non nano materials(A) .The effect of edible coating on quality attributes of fruits including apples , red grapes, tomatoes and Sweet green pepper were studied during storage at (0-2°C) and relative humidity 90-95% for apple and red grapes, at (8°C) and relative humidity 90-95% for tomatoes and Sweet green pepper.Rheological properties of edible solution and suspensions were studied . Also mechanical properties , partical size distribution , zeta potentioal emulsion ,X-R diffraction(XRD) films and scanning electron microscopy films were measured .The results observed that best samples were edible coating with nano suspensions (E) followed by samples (F, B, C and D ) as compared with non nano coating (A) samples. Different analysis was was determined on coated fruit and vegetables such as weight loss,total soluble solids,firmness, total acidity, ascorbic acid and microbiological test . Samples coated with (E) reduced the weight loss and microbial count . On the other hand observed that the nano coating apples, red grapes , tomatoes and sweet green pepper were kept with high quality compared to non nano coating . Apples , red grapes, tomatoes and Sweet green pepper fruits dipped in solution of (E) reduced weight loss percentage and maintiend fruit quality for 63 days and 56 days of storage for apples and red grapes respectively and for 42 days and 35 days of storage for tomatoes and sweet green pepper respectively .
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| Publication year |
2018
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| Pages |
20-41
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| Author(s) from ARC |
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| Publication Type |
Journal
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