Citation
Malmiri, Hoda Jafarizadeh and Osman, Azizah and Tan, Chin Ping and Abdul Rahman, Russly
(2011)
Development of an edible coating based on chitosan-glycerol to delay ‘Berangan’ banana (Musa sapientum cv. Berangan) ripening process.
International Food Research Journal, 18 (3).
pp. 989-997.
ISSN 1985-4668; ESSN: 2231-7546
Abstract
Response surface methodology (RSM) was used to optimize the concentrations of chitosan and glycerol for coating Berangan banana (Musa sapientum cv. Berangan). The effects of main edible coating components, chitosan (0.5-2.5%, w/w) and glycerol (0-2%, w/w) on weight loss, firmness, total colour difference, total soluble solids content (TSS) and titratable acidity (TA) of coated banana were studied during 10 days of storage at 26±2°C and 40-50% relative humidity. Results showed that the experimental data could
be adequately fitted into a second-order polynomial model with coefficient of determination (R2) ranging from
0.745 to 0.930 for all the variables studied. In general, the chitosan concentration appeared to be the most
significant (P< 0.1) factor influencing all variables except for TSS. The optimum concentration of chitosan
and glycerol were predicted to be 2.02% and 0.18%, respectively. Statistical assessment showed insignificant
difference between experimental and predicted values.
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