Effect of chitosan coating on postharvest quality of guava (Psidium guajava L.) Cv. Lucknow49
Author(s):
V Premalakshmi, J Rajangam, J Prem Joshua, T Arumugam and C Sankar
Abstract:
An experiment was conducted to study the effect of chitosan coating on the physical-chemical characteristics of guava cv. Lucknow 49 fruits stored at room temperature (28± 2 °c & 60 ± 10% RH) cumulative physiological loss in weight (CPLW) increased gradually in all the treatments with advancement of storage period.per cent increase in weight loss was recorded significantly low in 1.0% and 1.5% chitosan chitosan treated fruits were pre harvest spray with 2 per cent at MG stage. Postharvest treatment of chitosan at 1.5 per cent on fruits at colour turning stage recorded minimum PLW (%) than 1.0 per cent chitosan coating. The highest fruit weight loss was recorded in fruits which were not coated with chitosan irrespective of fruits being pre harvest sprayed with Ca(NO3)2 at 1.0 and 2.0 per cent. Pre harvest spray with calcium nitrate (1 & 2%) and postharvest treatment of chitosan (1 & 1.5%) at mature green stage recorded maximum fruit firmness than at color turning stage. Significant differences were observed for the total sugar (%) and Total soluble solids (° Brix) in chitosan coating of fruits at MG and CT stage fruits from pre harvest spray at 1.0 and 2.0 per cent.
How to cite this article:
V Premalakshmi, J Rajangam, J Prem Joshua, T Arumugam, C Sankar. Effect of chitosan coating on postharvest quality of guava (Psidium guajava L.) Cv. Lucknow49. Pharma Innovation 2022;11(5):1229-1234.