Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coating

Freshwater crab shells (Somanniathelphusa dugasti) are abundant in inland areas and rich in chitosan, which can be extracted and utilized. This study investigated the characteristics of chitosan from freshwater crab shells (FC-chitosan) and its impact on extending the shelf life of Nam Dok Mai mango...

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Main Authors: Hataitip Nimitkeatkai, Waraporn Apiwatanapiwat, Phornphimon Janchai, Jiraporn Meelaksana, Pilanee Vaithanomsat, Chairat Techavuthiporn, Amnat Jarerat
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Journal of Agriculture and Food Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666154324004782
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author Hataitip Nimitkeatkai
Waraporn Apiwatanapiwat
Phornphimon Janchai
Jiraporn Meelaksana
Pilanee Vaithanomsat
Chairat Techavuthiporn
Amnat Jarerat
author_facet Hataitip Nimitkeatkai
Waraporn Apiwatanapiwat
Phornphimon Janchai
Jiraporn Meelaksana
Pilanee Vaithanomsat
Chairat Techavuthiporn
Amnat Jarerat
author_sort Hataitip Nimitkeatkai
collection DOAJ
description Freshwater crab shells (Somanniathelphusa dugasti) are abundant in inland areas and rich in chitosan, which can be extracted and utilized. This study investigated the characteristics of chitosan from freshwater crab shells (FC-chitosan) and its impact on extending the shelf life of Nam Dok Mai mangoes (Mangifera indica L.). The FC-chitosan had a high degree of deacetylation (99.15 %), thereby enhancing solubility and reactivity for a uniform coating, and a low ash content (0.75 %), minimizing the interference effects on mechanical strength and transparency, both of which could contribute to its potential use as a well-adhering coating material. The FC-chitosan film exhibited superior properties as a coating film, with relatively higher transparency (25.09 % T/mm), tensile strength (21.57 MPa), and elongation (76.09 %) compared to commercially available marine crab chitosan. Mango fruits coated with 2.0 % (w/v) FC-chitosan demonstrated appropriate postharvest quality, with lower weight loss and maintained peel color, fruit firmness, titratable acidity, and ascorbic acid during storage at room temperature (30 ± 5 °C) for up to 11 days. The results suggest that FC-chitosan is effective as a coating material for delaying ripening and extending the shelf life of mangoes. The novelty of using chitosan derived from freshwater crab shells lies in its unique properties and its sustainable use of underutilized byproducts.
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spelling doaj-art-079ffcdb96464709b5dab74808a79c912025-08-20T01:56:42ZengElsevierJournal of Agriculture and Food Research2666-15432024-12-011810144110.1016/j.jafr.2024.101441Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coatingHataitip Nimitkeatkai0Waraporn Apiwatanapiwat1Phornphimon Janchai2Jiraporn Meelaksana3Pilanee Vaithanomsat4Chairat Techavuthiporn5Amnat Jarerat6School of Agriculture and Natural Resources, University of Phayao, Muang, Phayao, 56000, ThailandKasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Bangkok, 10900, ThailandKasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Bangkok, 10900, ThailandKasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Bangkok, 10900, ThailandKasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Bangkok, 10900, ThailandSchool of Industrial Education and Technology, King Mongkut's Institute of Technology Ladkrabang, Ladkrabang, Bangkok, 10520, ThailandFood Technology Program, Mahidol University, Kanchanaburi Campus, Saiyok, Kanchanaburi, 71150, Thailand; Corresponding author.Freshwater crab shells (Somanniathelphusa dugasti) are abundant in inland areas and rich in chitosan, which can be extracted and utilized. This study investigated the characteristics of chitosan from freshwater crab shells (FC-chitosan) and its impact on extending the shelf life of Nam Dok Mai mangoes (Mangifera indica L.). The FC-chitosan had a high degree of deacetylation (99.15 %), thereby enhancing solubility and reactivity for a uniform coating, and a low ash content (0.75 %), minimizing the interference effects on mechanical strength and transparency, both of which could contribute to its potential use as a well-adhering coating material. The FC-chitosan film exhibited superior properties as a coating film, with relatively higher transparency (25.09 % T/mm), tensile strength (21.57 MPa), and elongation (76.09 %) compared to commercially available marine crab chitosan. Mango fruits coated with 2.0 % (w/v) FC-chitosan demonstrated appropriate postharvest quality, with lower weight loss and maintained peel color, fruit firmness, titratable acidity, and ascorbic acid during storage at room temperature (30 ± 5 °C) for up to 11 days. The results suggest that FC-chitosan is effective as a coating material for delaying ripening and extending the shelf life of mangoes. The novelty of using chitosan derived from freshwater crab shells lies in its unique properties and its sustainable use of underutilized byproducts.http://www.sciencedirect.com/science/article/pii/S2666154324004782CoatingFilm castingFreshwater crab chitosanMango fruitShelf life
spellingShingle Hataitip Nimitkeatkai
Waraporn Apiwatanapiwat
Phornphimon Janchai
Jiraporn Meelaksana
Pilanee Vaithanomsat
Chairat Techavuthiporn
Amnat Jarerat
Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coating
Journal of Agriculture and Food Research
Coating
Film casting
Freshwater crab chitosan
Mango fruit
Shelf life
title Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coating
title_full Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coating
title_fullStr Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coating
title_full_unstemmed Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coating
title_short Valorization of freshwater crab shell residues to chitosan for postharvest quality of mango (Mangifera indica L.) by fruit coating
title_sort valorization of freshwater crab shell residues to chitosan for postharvest quality of mango mangifera indica l by fruit coating
topic Coating
Film casting
Freshwater crab chitosan
Mango fruit
Shelf life
url http://www.sciencedirect.com/science/article/pii/S2666154324004782
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