PRE-DESIGN OF BIODEGRADABLE FOAM INDUSTRY AS PACKAGING FOR GRAPE (VITIS VINIFERA L.) IN RETAIL SCALE: EFFECT OF CORN STARCH AND HUSK BIOFOAM WITH CHITOSAN ON ANTHOCYANINS AND GRAPES (VITIS VINIFERA L) DURING STORAGE AT DIFFERENT TEMPERATURES.

• Main Author: Rahmat Munandar, Fauzy
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/82948
• Institution: Institut Teknologi Bandung

Grape fruit (Vitis vinifera L) is a fruit originating from the Mediterranean region with a blackish-purple or greenish color in the form of an egg or round containing anthocyanins of 20-80 mg/100 grams with a lack of perishable fruit. This study aims to determine the storage temperature with the right biofoam to maintain anthocyanins and grape quality. This study was carried out by storage treatment for 12 days of storage on grapes with biofoam at 3 storage temperatures (room temperature (25±2oC), cold temperature (5±2oC), freezing temperature (-20±2oC)) which was carried out at 4 test points every 4 days. The parameters tested were quality parameters (Total Dissolved Acid, Weight Loss, Total Dissolved Solids, pH test, color test with CIRG (Color Index Red Grapes), hardness test, organoleptic test, and total phenolic content (anthocyanins). The results in the study showed that the cold temperature storage treatment showed a good trend in maintaining grape quality parameters such as total dissolved solids, titrable acid, fruit weight, fruit hardness, pH, color test and organoleptic test with phenolic levels of 104.4 ± 24.3a – 138.6 ± 29.6a mg GAE/g extract. In producing better research results, testing with the DPPH method or the FRAP Assay method is needed to quantify specific anthocyanins.