Effects of Phragmites australis (Cav.) Steud. root extracts on the storage quality of Valencia oranges

Synthetic agrochemicals have been losing their acceptability by the consumers throughout the earth, because of the scientific confirmation of their negative effects on ecosystem and human health. However, both the production and postharvest storability of fresh horticultural products relies on the use of agrochemicals, especially for controlling the pathogenic decay. Numerous studies have reported success for several different plant derived products in preserving the storability of fruits. Therefore, present research was conducted to study the effects of Phragmites australis (Cav.) Steud. root extracts on the storage quality of Valencia oranges. Three different concentrations of P. australis root extracts (1%, 5% and 10%), and control treatment were tested in present study. Results of present study are novel for the preservative effects of P. australis root extracts. It was found that all concentrations of P. australis root extracts were effective in preventing weight loss, but the higher efficacy was noted from the median dose (5%). Similarly, P. australis root extracts (5%) provided the highest efficacy in maintaining fruit firmness. All doses of P. australis root extracts have been found to prevent decay incidence, protect fruit quality, delay the reduction in titratable acidity, increase ascorbic acid content, and reduce the respiration rate of the Valencia oranges.

Keywords:

plant extracts, postharvest storability, respiration rate visual quality, weight loss,

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