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...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley Interscience
2010
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/11366/ http://psasir.upm.edu.my/id/eprint/11366/1/Potential%20of%20chitosan%20coating%20in%20delaying%20the%20postharvest%20anthracnose.pdf |
| _version_ | 1848841621403074560 |
|---|---|
| author | Ali, Asgar Tengku Muda Mohamed, Mahmud Sijam, Kamaruzaman Siddiqui, Yasmeen |
| author_facet | Ali, Asgar Tengku Muda Mohamed, Mahmud Sijam, Kamaruzaman Siddiqui, Yasmeen |
| author_sort | Ali, Asgar |
| building | UPM Institutional Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-15T07:46:09Z |
| format | Article |
| id | upm-11366 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:46:09Z |
| publishDate | 2010 |
| publisher | Wiley Interscience |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-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 |
| 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 |
| title | 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_short | 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 |
| url | http://psasir.upm.edu.my/id/eprint/11366/ http://psasir.upm.edu.my/id/eprint/11366/ http://psasir.upm.edu.my/id/eprint/11366/1/Potential%20of%20chitosan%20coating%20in%20delaying%20the%20postharvest%20anthracnose.pdf |