Preparation, Physicochemical Properties and In Vitro Antimicrobial Acitvities of Oligochitosan Against Fusarium Moniliforme and Ralstonia Solanacearum

Các tác giả

Email tác giả liên hệ:

vinhccttbvtv@gmail.com

DOI:

https://doi.org/10.54644/jte.2025.1842

Từ khóa:

chitosan, oligochitosan, Fusarium moniliforme; Rastonia solanacearum; in vitro

Tóm tắt

Nghiên cứu này tập trung vào việc tổng hợp, và đánh giá đặc tính hóa lý cũng như khả năng kháng vi sinh vật in vitro của oligochitosan. Oligochitosan được sản xuất bằng cách hoà tan chitosan trong axit axetic 2% và oxy hóa bằng hydrogen peroxide 3% ở nhiệt độ 60°C trong 4 giờ, tạo ra sản phẩm có trọng lượng phân tử 7,92 kDa. Các đặc tính kháng khuẩn được thử nghiệm đối với tác nhân nấm Fusarium moniliforme và vi khuẩn Ralstonia solanacearum trong điều kiện in vitro. Kết quả cho thấy oligochitosan có hoạt tính kháng nấm phụ thuộc vào nồng độ, đạt tới 60,17% ức chế sự phát triển của nấm mycelium ở nồng độ 2000 ppm, cao hơn so với mức ức chế của chitosan. Tuy nhiên, cả chitosan và oligochitosan đều không có tác dụng kháng khuẩn đối với R. solanacearum. Các kết quả này chỉ ra rằng oligochitosan có tiềm năng là một tác nhân kháng nấm hiệu quả, mặc dù hoạt tính kháng khuẩn của nó vẫn còn hạn chế. Các kết quả này hỗ trợ việc ứng dụng oligochitosan trong kiểm soát dịch bệnh thực vật và các biện pháp kiểm soát sinh học.

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Tiểu sử của Tác giả

Huong Nguyen Dao Thanh, Branch of National Center for Technological Progress in Ho Chi Minh City (NaCenTech HCM), Vietnam

Huong Nguyen Dao Thanh holds a Master’s degree in Plant physiology from the Faculty of Biology and Biotechnology at the University of Science in Ho Chi Minh City, Vietnam, which she earned in 2020. Since 2019, Huong has worked as a researcher and technology deployment specialist at the National Center for Technological Progress- HCM Branch in Ho Chi Minh City, Vietnam. In this role, she conducted research on the application of microorganisms and herbal extracts in agriculture and aquaculture. Huong's research interests include plant wilt disease, biological pest control methods, chemical and organic fertilizers for soil, and aquaculture technologies for shrimp and fish farming. She has contributed to advances in these areas through her work at the National Center.

Email: ngdthanhhuong2312@gmail.com. ORCID:  https://orcid.org/0009-0001-9620-7772

Binh Le Thanh, Branch of National Center for Technological Progress in Ho Chi Minh City (NaCenTech HCM), Vietnam

Binh Le Thanh holds a Master's degree in Genetics from the Faculty of Biology and Biotechnology at the University of Science in Ho Chi Minh City, Vietnam, which he earned in 2007. Since 2008, Binh has worked as a researcher and technology deployment specialist at the National Center for Technological Progress - HCM Branch in Ho Chi Minh City, Vietnam. In this role, he has conducted research and development in the fields of applied biology and applied chemistry, with a focus on farming and aquaculture. Binh's research interests include plant wilt disease, biological pest and disease control methods (such as using Trichoderma), chemical and organic fertilizers, and technologies for shrimp and fish farming. He has made valuable contributions to advancing these areas through his work at the National Center.

Email: thanhbinhbio99@gmail.com. ORCID:  https://orcid.org/0000-0002-4611-1676.

Trinh Do Thi Mai, Branch of National Center for Technological Progress in Ho Chi Minh City (NaCenTech HCM), Vietnam

Trinh Do Thi Mai holds a Master’s degree in Biotechnology from Ho Chi Minh City University of Technology, Viet Nam, which she earned in 2020. Since 2020, She has worked as a researcher and technology deployment specialist at the National Center for Technological Progress- HCM Branch in Ho Chi Minh City, Vietnam. In this role, she conducted research and technology development in the field of agricultural biology. Trinh's research interests include plant wilt disease, biological pest control methods, chemical and organic fertilizers for soil, and aquaculture technologies for shrimp and fish farming. She has contributed to advances in these areas through her work at the National Center.

Email: dothimaitrinh24@gmail.com. ORCID:  https://orcid.org/0009-0000-5878-3835.

Vinh Nguyen Van, Insitute for Public Policy and Rural Development, Vietnam

Vinh Nguyen Van holds a Doctor’s degree in Crop science from the Faculty of Agronomy at Nong Lam University in Ho Chi Minh City, VietNam, which he earned in 2020. He was researcher in Branch of national center for technological progress in Ho Chi Minh city from 2004 – 2005, Head of Department in Agricultural Extension Center - Department of Agriculture and Rural Development of Ho Chi Minh City from 2006 – 2016, Head of Department in Department of Cultivation and Plant Protection - Department of Agriculture and Rural Development of Ho Chi Minh City from 2016 – 2022, Vice Director in Center for Plant, Animal and Aquatic Breeds - Department of Agriculture and Rural Development of Ho Chi Minh City from 2022 to 2024. From July, 2024 to now, he is lecturer in Farmer Training Center - Institute for Public Policy and Rural Development. He has experience in training, consulting, and building models for farmers on crop production according to VietGAP standards, international standards... crop production management, food safety management in production areas, and domestic plant quarantine management. Research and create new plant varieties; production process of plant varieties for transfer to farmers; Participated in teams to evaluate chain crop production, standards including VietGAP standards, growing area codes, packaging codes.

Email: vinhccttbvtv@gmail.com. ORCID:  https://orcid.org/0009-0008-5414-4591.

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Tải xuống

Đã Xuất bản

2025-11-28

Cách trích dẫn

[1]
H. . Nguyen Dao Thanh, B. Le Thanh, T. . Do Thi Mai, và V. . Nguyen Van, “Preparation, Physicochemical Properties and In Vitro Antimicrobial Acitvities of Oligochitosan Against Fusarium Moniliforme and Ralstonia Solanacearum”, JTE, vol 20, số p.h 04, tr 8–17, tháng 11 2025.

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