4. Conclusions
Compared to controls, the coated treatments significantly
decreased decay, alleviated postharvest deterioration, reduced
respiratory intensity and enhanced antioxidant enzymes activities.
The results showed that the activities of POD and SOD in fruits
treated with CGC coating were higher than those in other samples.
Chitosan–glucose complex significantly alleviated the declines of
total soluble solids, ascorbic acid and titratable acidity, when compared
with other treatments. In addition, CGC also effectively
maintained hardness, springiness, cohesiveness, and chewiness
of fruits. Meanwhile CGC had a beneficial effect on sensory
quality of grapes. These results indicated that chitosan–glucose
complex was really a useful strategy for table grapes preservation.