During ripening, TSS increased due to the degradation of polysaccharides present in the fruit. In this study, there was no significant difference between values of coated and uncoated mangoes and reference values. However uncoated fruit showed a maximum value of 14.8% TSS after eight days of storage. Initially, fruit are rich in ascorbic acid but its level usually decreases during maturation. After eight days of storage, ascorbic acid in uncoated fruit fell significantly (5.84 mg/100 mL) compared to coated fruit (23–26 mg/100 mL) (Table 3). Slowing maturation caused by the coating of chitosan, thus reduced degradation of ascorbic acid.
An overall comparison between chitosan treatments showed that there was no significant difference between chitosan concentrations of 1% and 1.5%. Application of chitosan exhibited a beneficial effect on the contents of TA, TSS, pH and ascorbic acid. This could be due to low respiration of coated fruit. The presence of the enzyme system did not influence chemical composition changes in the fruit.
During ripening, TSS increased due to the degradation of polysaccharides present in the fruit. In this study, there was no significant difference between values of coated and uncoated mangoes and reference values. However uncoated fruit showed a maximum value of 14.8% TSS after eight days of storage. Initially, fruit are rich in ascorbic acid but its level usually decreases during maturation. After eight days of storage, ascorbic acid in uncoated fruit fell significantly (5.84 mg/100 mL) compared to coated fruit (23–26 mg/100 mL) (Table 3). Slowing maturation caused by the coating of chitosan, thus reduced degradation of ascorbic acid.An overall comparison between chitosan treatments showed that there was no significant difference between chitosan concentrations of 1% and 1.5%. Application of chitosan exhibited a beneficial effect on the contents of TA, TSS, pH and ascorbic acid. This could be due to low respiration of coated fruit. The presence of the enzyme system did not influence chemical composition changes in the fruit.
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