Effect of Glycine Betaine Treatment on Toona sinensis Roem Sprout Quality During Postharvest

Abstract:

The effect of different concentration of glycine betaine （GB） treatment on the quality in Toona sinensis（A. Ju ss. Raen，Hongyou） during cold storage was investigated. The results indicated that GB treated groups kept the quality of Toona sinensis buds at a good level as compared to the control group. The concentration of 8 mmol/L and 16 mmol/L effectively retained the commercial value，reduced the weight loss and decay rate，and maintained the content of chlorophyll，Vc and total flavones. Moreover，GB treatment reduced the respiration rate and inhibited the activities of polyphenol oxidase （PPO）. These results suggested that GB treatment may maintain the good quality and extend the storage time of cold-stored Toona sinensis roem sprout and the optimum concentration for the Toona sinensis roem sprout preservation is 8 mmol/L.