Nghiên cứu bảo quản táo cắt tươi bằng màng bao ăn được alginate có bổ sung cao chiết rong nâu Sargassum polycystum

Abstract

The objective of this study was to evaluate the effect of alginate edible coating supplemented with glycerol and brown seaweed extract Sargassum polycystum (A-G-S film) on fresh-cut apples. The result obtained with the formula film A-G-S is the concentration of alginate/ water 1.0%, glycerol 20%, and additional extract 2.0%. The A-G-S film on the surface of fresh-cut apples has the same antioxidant capacity as A-G-As film, using ascorbic acid as an antioxidant. These fresh-cut apples are recommended to be stored at 5±2oC for 12 days with a commercial acceptance ratio (CAR) of 59.57%. The values of WL, TSS/TA, TPC are respectively 16.51±0.52%, 30.80, and 0.63±0.02 mg/g. The film has an average thickness of 7.04 µm, uniform surface, certain ductility, and water vapor transmittance rate (WVTR) of the film 5.31x10-4 g/mm2.