EFFECT OF GAMMA-RAY IRRADIATION TECHNOLOGY (CO-60) COMBINED WITH HOT WATER TREATMENT ON PHYSICAL PROPERTIES AND SHELF LIFE OF GEDONG GINCU MANGO (MANGIFERA INDICA L.)

• Main Author: Qoulan Tsaqila, Nisrina
• Format: Final Project
• Language: Indonesia
• Subjects: Teknologi
• Online Access: https://digilib.itb.ac.id/gdl/view/67854
• Institution: Institut Teknologi Bandung

Gedong gincu mango is one kind of superior export commodities within Indonesian total production reach 3,9 million tons annually. Nevertheless, high percentage loss of gedong gincu mango commonly occured as a result of quality reduction during export chain. Irradiation technology combined with hot water treatment is a solution that can be done to decrease or even overcome these problems by maintain the quality of the fruit. Both of thus treatments done separately in common. This paper is an overview of research that aim to determine the best treatment variations consist gamma-ray irradiations using Cobalt 60 (dose of 0,25; 0,50; 0,75 kGy), temperature of hot water treatment (45, 50, 55?), and duration of hot water treatment (3; 6,5; 10 minutes) in maintaining the fruit quality and shelf-life during storage based on the physical properties of gedong gincu mango involves weight loss percentage, fruit firmness/hardness level, chromaticity, color organoleptic, appearance organoleptic, odor organoleptic, texture organoleptic, and taste organoleptic. The research design was constructed based on Response Surface Methodology (RSM) Box-Behnken Design (BBD) using Minitab 21 ® program to determine the optimum condition through optimization process towards physical properties of gedong gincu mango. The result of this research shows that Full Quadratic is the optimum model based on ANOVA analysis. By this study, the best treatment variations in maintaining gedong gincu mango quality that aggregated through optimization process are gamma ray irradiations with dose of 0,5 kGy combined with hot water treatment using 50? temperature for 6,5 minutes. This variation was able to maintain gedong gincu mango quality for 18 days in room temperature storage. Therefore, the combination of gamma-ray irradiation and hot water treatment is desired as an alternative in post-harvest handling to maintain gedong gincu mango quality and diminish the fruit loss percentage as a result.