Effect of Chitosan Coating on the Antioxidant Enzymes and Quality of ´Dashi Early Ripening´ Plums

Author

Zhao, Zhilei ; Gu, Yuhong ; Kun, Meng ; Li, Xiaoting

Author_Institution

Coll. of Quality & Tech. Supervision, Hebei Univ., Baoding, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

4

Abstract

In order to evaluate the effect of chitosan coating on the antioxidant enzymes and quality of ´Dashi Early Ripening´ plums (Prunus domestica L.) during storage at ambient temperature. The fruit were coated with chitosan solutions after harvest and stored at 25degC. The result showed that the decrease of firmness, soluble solids content and titratable acidity was slowed down by chitosan coating during the storage. The activity of SOD, CAT, PPO in the chitosan coating plum were higher than that in the control, but POD activity in the chitosan coating plum was lower than that in the control. Chitosan coating has the potential to maintain postharvest quality during storage at ambient temperature. The chitosan coating has more effective application in our study, which could not only be due to reducing the respiration rate and inhibiting the softing process, but also to increasing the activity of SOD, CAT, PPO in the fruit.

Keywords

biochemistry; biotechnology; coatings; enzymes; food preservation; food products; CAT; Dashi early ripening plums; POD activity; PPO; Prunus domestica L; SOD; antioxidant enzymes; chitosan coating; firmness; fruit; respiration rate; softing process; soluble solids content; storage; titratable acidity; Analysis of variance; Atmosphere; Biochemistry; Biological materials; Coatings; Contracts; Educational institutions; Solids; Temperature; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162688

Filename

5162688