ABSTRACT
ABSTRACT: After receiving dipping treatment with composite chitosan/nano-SiOx (CTSS) for 30 s, Yanhong peach fruits were stored under the condition of 27°C (±1°C). The effect of chitosan/nano-SiOx on senescence of peaches were investigated. Results indicate that CTSS reduced the superoxide anion (O2−⋅) production rate and respiration rate. Compared to control peaches, chitosan/nano-SiOx treated peaches showed lower higher activities of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and ascorbate oxidase (AAO). Hence it can be concluded that chitosan/nano-SiOx has the significant potential to preserve valuable attributes and prolong the shelf life postharvest Yanhong peach fruits, presumably because of its antifungal property and inhibition of the ripening and senescence process of postharvest peaches.
