Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatum
This study presents the structural characteristics and the antifungal efficiency of the oligochitosan-Zn2+ complexes. Oligochitosan with the average molecular weight of ~5 kDa was effectively prepared by gamma-ray irradiation degradation of chitosan in a solution containing H2O2. The oligochitosan-Z...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2019/8357381 |
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| author | Dang Van Phu Bui Duy Du Le Nghiem Anh Tuan Le Thanh Hung Hoang Dac Hiet Nguyen Quoc Hien |
| author_facet | Dang Van Phu Bui Duy Du Le Nghiem Anh Tuan Le Thanh Hung Hoang Dac Hiet Nguyen Quoc Hien |
| author_sort | Dang Van Phu |
| collection | DOAJ |
| description | This study presents the structural characteristics and the antifungal efficiency of the oligochitosan-Zn2+ complexes. Oligochitosan with the average molecular weight of ~5 kDa was effectively prepared by gamma-ray irradiation degradation of chitosan in a solution containing H2O2. The oligochitosan-Zn2+ complexes with the different molar ratios of -NH2/Zn2+ were prepared by mixing Zn(NO3)2 into oligochitosan solution. The resultant complexes were characterized by FTIR, XRD, UV-Vis, and ICP-AES. The obtained results demonstrated that Zn2+ ions were stably bound with oligochitosan molecules through interacting with -OH and -NH2 groups. The in vitro antifungal effect of oligochitosan-Zn2+ complexes was assessed against Colletotrichum truncatum, a fungus species causing anthracnose on crops. The antifungal activity was significantly improved as the increase of Zn2+ content in the complexes. Particularly, the antifungal efficiency of the complexes reached to 75–100% compared to that of about 12% for oligochitosan. Thus, the addition of Zn2+ into oligochitosan strengthens its performance towards antifungal property and bring forward a new approach for progressing biobased materials for controlling plant diseases. |
| format | Article |
| id | doaj-art-55ad0025a8104f2db373f57499a76cfe |
| institution | OA Journals |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-55ad0025a8104f2db373f57499a76cfe2025-08-20T02:04:57ZengWileyInternational Journal of Polymer Science1687-94221687-94302019-01-01201910.1155/2019/83573818357381Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatumDang Van Phu0Bui Duy Du1Le Nghiem Anh Tuan2Le Thanh Hung3Hoang Dac Hiet4Nguyen Quoc Hien5Research and Development Center for Radiation Technology, VINATOM, 202A, Street 11, Linh Xuan, Thu Duc, Ho Chi Minh City 700000, VietnamGraduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, VietnamGraduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, VietnamResearch and Development Center for Hi-Tech Agriculture, Management Board of Agricultural High Technology Park of Ho Chi Minh City, Cu Chi, Ho Chi Minh City 700000, VietnamResearch and Development Center for Hi-Tech Agriculture, Management Board of Agricultural High Technology Park of Ho Chi Minh City, Cu Chi, Ho Chi Minh City 700000, VietnamResearch and Development Center for Radiation Technology, VINATOM, 202A, Street 11, Linh Xuan, Thu Duc, Ho Chi Minh City 700000, VietnamThis study presents the structural characteristics and the antifungal efficiency of the oligochitosan-Zn2+ complexes. Oligochitosan with the average molecular weight of ~5 kDa was effectively prepared by gamma-ray irradiation degradation of chitosan in a solution containing H2O2. The oligochitosan-Zn2+ complexes with the different molar ratios of -NH2/Zn2+ were prepared by mixing Zn(NO3)2 into oligochitosan solution. The resultant complexes were characterized by FTIR, XRD, UV-Vis, and ICP-AES. The obtained results demonstrated that Zn2+ ions were stably bound with oligochitosan molecules through interacting with -OH and -NH2 groups. The in vitro antifungal effect of oligochitosan-Zn2+ complexes was assessed against Colletotrichum truncatum, a fungus species causing anthracnose on crops. The antifungal activity was significantly improved as the increase of Zn2+ content in the complexes. Particularly, the antifungal efficiency of the complexes reached to 75–100% compared to that of about 12% for oligochitosan. Thus, the addition of Zn2+ into oligochitosan strengthens its performance towards antifungal property and bring forward a new approach for progressing biobased materials for controlling plant diseases.http://dx.doi.org/10.1155/2019/8357381 |
| spellingShingle | Dang Van Phu Bui Duy Du Le Nghiem Anh Tuan Le Thanh Hung Hoang Dac Hiet Nguyen Quoc Hien Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatum International Journal of Polymer Science |
| title | Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatum |
| title_full | Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatum |
| title_fullStr | Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatum |
| title_full_unstemmed | Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatum |
| title_short | Preparation and Antifungal Activity Investigation of Oligochitosan-Zn2+ on Colletotrichum truncatum |
| title_sort | preparation and antifungal activity investigation of oligochitosan zn2 on colletotrichum truncatum |
| url | http://dx.doi.org/10.1155/2019/8357381 |
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