Carboxymethyl cellulose coating delays ripening of harvested mango fruits by regulating softening enzymes activities

Sajid Ali; Muhammad Akbar Anjum; Ahmad Sattar Khan; Aamir Nawaz; Shaghef Ejaz; Ghulam Khaliq; Shahid Iqbal; Sami Ullah; Rana Naveed Ur Rehman; Muhammad Moaaz Ali; Muhammad Shahzad Saleem

doi:10.1016/j.foodchem.2021.131804

Carboxymethyl cellulose coating delays ripening of harvested mango fruits by regulating softening enzymes activities

Food Chem. 2022 Jun 30:380:131804. doi: 10.1016/j.foodchem.2021.131804. Epub 2021 Dec 7.

Affiliations

¹ Department of Horticulture, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan 60800, Pakistan. Electronic address: sajidali@bzu.edu.pk.
² Department of Horticulture, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan 60800, Pakistan.
³ Institute of Horticultural Sciences, University of Agriculture, Faisalabad 38040, Pakistan.
⁴ Department of Horticulture, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Balochistan, Pakistan.
⁵ Laboratory of Fruit Tree Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China.
⁶ Department of Horiculture, MNS University of Agriculture, Multan, Pakistan.
⁷ College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China.

PMID: 34996636
DOI: 10.1016/j.foodchem.2021.131804

Abstract

The effect of carboxymethyl cellulose [(1%) CMC] was evaluated on mango fruits under storage at 20 ± 1 °C for 20 days. The CMC coating noticeably reduced weight loss and disease incidence. Application of CMC delayed climacteric peak of ethylene and respiration rate with significantly reduced relative ion leakage, malondialdehyde, superoxide anion and hydrogen peroxide content. The treated mangoes showed significantly lower L*, a*, b* and total carotenoids. The CMC treatment reduced the increase in cellulase, pectin methylesterase and polygalacturonase activity that delayed softening of mango fruits. In addition, activities of peroxidase, catalase, ascorbate peroxidase and superoxide dismutase were substantially higher in CMC-treated mango fruits. The treated fruits showed significantly lower soluble solids and higher titratable acidity which thereby reduced the ripening index of mangoes. In conclusion, CMC treatment could be considered a potential pre-storage treatment to delay postharvest ripening and to conserve the eating quality of ambient stored mango fruits.

Keywords: Carboxymethyl cellulose; Mango; Pectin methylesterase; Polygalacturonase; Softening.

MeSH terms

Antioxidants
Ascorbate Peroxidases
Carboxymethylcellulose Sodium
Fruit
Mangifera*

Substances

Antioxidants
Ascorbate Peroxidases
Carboxymethylcellulose Sodium