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Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya

The in vitro and in vivo fungicidal activity of chitosan was studied against Colletotrichum gloeosporioides, the causal agent of anthracnose in papaya fruits. Chitosan at 1.5% and 2.0% concentrations showed a fungistatic effect with 90–100% inhibition (significant at P ≤ 0.05) of the fungal mycelial...

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Main Authors: Ali, Asgar, Tengku Muda Mohamed, Mahmud, Sijam, Kamaruzaman, Siddiqui, Yasmeen
Format: Article
Language:English
Published: Wiley Interscience 2010
Online Access:http://psasir.upm.edu.my/id/eprint/11366/1/Potential%20of%20chitosan%20coating%20in%20delaying%20the%20postharvest%20anthracnose.pdf
http://psasir.upm.edu.my/id/eprint/11366/
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spelling my.upm.eprints.113662016-03-09T04:29:22Z http://psasir.upm.edu.my/id/eprint/11366/ Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya Ali, Asgar Tengku Muda Mohamed, Mahmud Sijam, Kamaruzaman Siddiqui, Yasmeen The in vitro and in vivo fungicidal activity of chitosan was studied against Colletotrichum gloeosporioides, the causal agent of anthracnose in papaya fruits. Chitosan at 1.5% and 2.0% concentrations showed a fungistatic effect with 90–100% inhibition (significant at P ≤ 0.05) of the fungal mycelial growth. Changes in the conidial morphology were also observed with the higher chitosan concentrations after 7-h incubation. In vivo studies showed that 1.5% and 2.0% chitosan coatings on papaya not only controlled the fruit decay but also delayed the onset of disease symptoms by 3–4 weeks during 5 weeks storage at 12 ± 1°C and slowed down the subsequent disease development. However, when leaving the fruits to ripen at ambient temperature (28 ± 2°C), 2.0% chitosan was less effective than 1.5% in controlling the disease development. Chitosan coatings also delayed the ripening process by maintaining the firmness levels, soluble solids concentration and titratable acidity values during and after storage. Wiley Interscience 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/11366/1/Potential%20of%20chitosan%20coating%20in%20delaying%20the%20postharvest%20anthracnose.pdf Ali, Asgar and Tengku Muda Mohamed, Mahmud and Sijam, Kamaruzaman and Siddiqui, Yasmeen (2010) Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya. International Journal of Food Science and Technology, 45 (10). pp. 2134-2140. ISSN 1365-2621 10.1111/j.1365-2621.2010.02389.x
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description The in vitro and in vivo fungicidal activity of chitosan was studied against Colletotrichum gloeosporioides, the causal agent of anthracnose in papaya fruits. Chitosan at 1.5% and 2.0% concentrations showed a fungistatic effect with 90–100% inhibition (significant at P ≤ 0.05) of the fungal mycelial growth. Changes in the conidial morphology were also observed with the higher chitosan concentrations after 7-h incubation. In vivo studies showed that 1.5% and 2.0% chitosan coatings on papaya not only controlled the fruit decay but also delayed the onset of disease symptoms by 3–4 weeks during 5 weeks storage at 12 ± 1°C and slowed down the subsequent disease development. However, when leaving the fruits to ripen at ambient temperature (28 ± 2°C), 2.0% chitosan was less effective than 1.5% in controlling the disease development. Chitosan coatings also delayed the ripening process by maintaining the firmness levels, soluble solids concentration and titratable acidity values during and after storage.
format Article
author Ali, Asgar
Tengku Muda Mohamed, Mahmud
Sijam, Kamaruzaman
Siddiqui, Yasmeen
spellingShingle Ali, Asgar
Tengku Muda Mohamed, Mahmud
Sijam, Kamaruzaman
Siddiqui, Yasmeen
Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya
author_facet Ali, Asgar
Tengku Muda Mohamed, Mahmud
Sijam, Kamaruzaman
Siddiqui, Yasmeen
author_sort Ali, Asgar
title Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya
title_short Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya
title_full Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya
title_fullStr Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya
title_full_unstemmed Potential of chitosan coating in delaying the postharvest anthracnose (Colletotrichum gloeosporioides Penz.) of Eksotika II papaya
title_sort potential of chitosan coating in delaying the postharvest anthracnose (colletotrichum gloeosporioides penz.) of eksotika ii papaya
publisher Wiley Interscience
publishDate 2010
url http://psasir.upm.edu.my/id/eprint/11366/1/Potential%20of%20chitosan%20coating%20in%20delaying%20the%20postharvest%20anthracnose.pdf
http://psasir.upm.edu.my/id/eprint/11366/
_version_ 1643824807332020224
score 13.211869

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