Effect of chitosan-based edible coating on antioxidants, antioxidant enzyme system, and postharvest fruit quality of strawberries (Fragaria x aranassa Duch.)

Chitosan/Cellulose Nanofibril Nanocomposite and Its Effect on Quality of Coated Strawberries

“…Moisture loss can possibly trigger damage to the plasma membrane and the cell wall of the fruit, promoting a decrease in the concentrations of this pigment. In a study conducted by Wang and Gao [42], in which strawberries were treated with di erent chitosan concentrations, higher concentrations of anthocyanin were observed in all treatments compared to the control. One of the hypotheses to explain this phenomenon was described by El Ghaouth et al [43], who proposed that the chitosan lm plays the role of a barrier, reducing water loss, modifying the endogenous CO 2 , O 2 , and ethylene, and delaying ripening and senescence.…”

“…Wang and Gao [42], working with chitosan coating, detected a positive e ect on the antioxidant potential of the treated strawberries. By the DPPH method, antioxidant activity reduction was observed in uncoated strawberries already on the 4th day of storage.…”

“…us, di erent reports about the concentration of these compounds can be seen in the literature. Strawberries stored at temperatures above 0°C tend to increase the concentration of antioxidant compounds, as well as the concentration of total anthocyanins [42], whereas their degradation can be associated with oxidative processes that may occur due to stress caused by the loss of water over time. Moisture loss can possibly trigger damage to the plasma membrane and the cell wall of the fruit, promoting a decrease in the concentrations of this pigment.…”

Textural Properties and Enzyme Activity of Mango (Mangifera indica L.) Fruit Coated with Chitosan during Storage

“…Chitosan has good physical or mechanical properties and selective permeability to carbon dioxide and oxygen gasses. Chitosan has been used as an ideal coating for maintaining quality and delaying ripening of many fruits, including longan fruits (Shi et al, 2013), strawberry (Wang and Gao, 2013;Gol et al, 2013) and table grapes . The effect of chitosan coating has been studied on mango fruit (Jitareerat et al, 2007;Abbasi et al, 2009;Wongmetha and Ke, 2012), however the potential of chitosan in reducing the degradation process and increasing the antioxidant defense system has not been clearly elucidated in mango fruit.…”

Effect of Sulphur Dioxide Pads on Enhancement of Shelf Life of Strawberry (Fragaria ananassa) under Ambient Condition

“…And there was not significant effect of SO 2 pads to maintain lowest content of anthocyanin in strawberries during storage period (Table 4) (Holcroft and Kader, 1999;Cordenunsi, 2003;Wang and Gao, 2013). The study inferred that, SO 2 pads did not show positive effect on sensory characters such as colour, taste, texture, flavour and absence of defects in strawberry fruits under ambient condition of storage.…”