Effect of Chitosan on biochemical and microbial quality of minimally processed mango (Mangifera indica L.) cubes during storage

Published

2018-03-10

DOI:

https://doi.org/10.5958/0974-0112.2018.00022.1

Keywords:

Edible coatings, mango cubes, microbial growth, biochemical changes.
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Authors

  • P.S. Gurjar Division of Post Harvest Management, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow 226101, Uttar Pradesh
  • N. Garg Division of Post Harvest Management, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow 226101, Uttar Pradesh
  • K.K. Yadav Division of Post Harvest Management, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow 226101, Uttar Pradesh
  • J. Lenka Division of Post Harvest Management, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow 226101, Uttar Pradesh
  • D.K. Shukla Division of Post Harvest Management, ICAR-Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow 226101, Uttar Pradesh

Abstract

Fresh-cut mango cubes of cv. Mallika coated with acidified chitosan solutions at concentrations of 1, 2 and 3% along with untreated cubes as control were placed into plastic trays, over-wrapped with cling film (10 μ thickness) and stored in refrigerator at 8±2°C for 8 days. Analytical determinations were made after 2, 4, 6 and 8 days. Chitosin coating, especially 2 and 3% was effective in inhibiting loss of weight, total carotenoids and total phenols content. Chitosin 3% coating was highly effective in inhibiting growth of bacteria and yeast/mould on the cubes. At the end of the storage minimum weight loss (2.46%) was obser ved in 3% chitosan treated cubes and higher weight loss (4.51%) found in control. Higher total phenols (41.79 mg TAE/100 g) were estimated in 2% chitosan treated samples while maximum total carotenoids content (5.35 mg/100 g) were observed with 3% chitosan treatment. Maximum total soluble solids (25.65°Brix) were observed in control. Minimum bacterial load (2.04 log CFU/g) and yeast/mould load (1.78 log CFU /g) was observed with 3% chitosan treatment while maximum bacterial load (3.02 log CFU/ g) and yeast/mould count (3.92 log CFU/g) was found in control. Overall results suggests that chitosan (3%) coating on the mango cubes effectively reduced weight loss, prevented biochemical changes and inhibited microbial growth.

How to Cite

Gurjar, P., Garg, N., Yadav, K., Lenka, J., & Shukla, D. (2018). Effect of Chitosan on biochemical and microbial quality of minimally processed mango (Mangifera indica L.) cubes during storage. Indian Journal of Horticulture, 75(01), 130–134. https://doi.org/10.5958/0974-0112.2018.00022.1

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