Aplikasi Pelapis Bionanokomposit Berbasis Karagenan untuk Mempertahankan Mutu Buah Mangga Utuh

Mango is one of Indonesia export comodities which vulnerable to decay during transportation and storage. Coating is known as an effective method to overcome such shortcomings of mango during storage. The objective of this study is to examine the effect of carrageenan-based bionanocomposite coating application for maintaining quality of mango type Gedong gincu stored at 20 oC as well as characterize the mechanicaland water vapor barier properties of resulting film. Zinc oxide nanoparticles (ZnO NPs) (1 % w/w carrageenan) and beeswax (3 % v/v solution), as hydrophobic component, were incorporated into carrageenan polymer to produce bionanocomposite solution. The results showed the mechanical and water vapor barrier properties of carrageenan films were improved by the addition of beeswax and ZnO NPs. N1B1 (carrageenan + beeswax + ZnO NPs) emerged as the most effective coating formulation to delay the change of weightloss, firmness, CO2 production, total acidity as well as alteration in color parameters (L, a and b) of mangoduring storage. Carrageenan-based bionanocomposite coating was potential as alternative method to keepthe quality of mango during storage