Chitosan is a bioactive polymer produced from shrimp and crab shells, etc. According to VASEP (Vietnam Association of Seafood Exporters and Producers), the production of raw shrimp cultured in Vietnam was about 800,000 tons in 2018. Therefore, the shrimp processing industry has generated about 320,000 tons of wastes, including heads and shells. If wastes are not utilized and managed in proper ways, it can lead to serious environmental problems. In our study, shrimp shells were used to produce chitosan and further obtained oligochitosan for application in food preservation. The cobalt-60 radiation technology has been used to segment chitosan into oligochitosan. The radiation dose applied to chitosan solution was in the range of 25 ÷ 50 kGy and in the range of 66 ÷ 166 kGy for chitosan flakes. The results showed that the chitosan solution had higher segmental efficiency compared to that of chitosan flakes. The antibacterial activities of oligosaccharide chitosan segmented from chitosan flakes were higher than those of oligosaccharide chitosan segmented from chitosan solution. The highest antibacterial activities were observed in the oligochitosan segmented from chitosan flakes at the radiation dose of 66 kGy for all tested bacteria: E. coli O157:H7, Salmonella typhimurium, Listeria monocytogenes, Staphylococcus aureus, Bacillus subtilis. In addition, oligochitosan segmented from chitosan flakes at the radiation dose of 66 kGy had higher antibacterial activities on bacteria gram (-) than bacteria gram (+). The strongest antibacterial activities on L. monocytogenes and B. subtilis at the concentration of 0.3125%.
| Published in |
World Journal of Food Science and Technology (Volume 4, Issue 2)
This article belongs to the Special Issue Marine Bio-Polymer: Bio-Activity, Extraction and Application |
| DOI | 10.11648/j.wjfst.20200402.14 |
| Page(s) | 40-45 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2020. Published by Science Publishing Group |
Radiation, Chitosan, Oligochitosan, Antibacterial, Bacteria Gram (-), Bacteria Gram (+)
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APA Style
Vu Ngoc Boi, Nguyen Thi My Trang, Dang Xuan Cuong, Vu Thi Hoan, Le Hai. (2020). Oligosaccharide Chitosan: Viscosity, Molecular Weight, Antibacterial Activity, and Impact of γ Radiation. World Journal of Food Science and Technology, 4(2), 40-45. https://doi.org/10.11648/j.wjfst.20200402.14
ACS Style
Vu Ngoc Boi; Nguyen Thi My Trang; Dang Xuan Cuong; Vu Thi Hoan; Le Hai. Oligosaccharide Chitosan: Viscosity, Molecular Weight, Antibacterial Activity, and Impact of γ Radiation. World J. Food Sci. Technol. 2020, 4(2), 40-45. doi: 10.11648/j.wjfst.20200402.14
AMA Style
Vu Ngoc Boi, Nguyen Thi My Trang, Dang Xuan Cuong, Vu Thi Hoan, Le Hai. Oligosaccharide Chitosan: Viscosity, Molecular Weight, Antibacterial Activity, and Impact of γ Radiation. World J Food Sci Technol. 2020;4(2):40-45. doi: 10.11648/j.wjfst.20200402.14
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Download@article{10.11648/j.wjfst.20200402.14,
author = {Vu Ngoc Boi and Nguyen Thi My Trang and Dang Xuan Cuong and Vu Thi Hoan and Le Hai},
title = {Oligosaccharide Chitosan: Viscosity, Molecular Weight, Antibacterial Activity, and Impact of γ Radiation},
journal = {World Journal of Food Science and Technology},
volume = {4},
number = {2},
pages = {40-45},
doi = {10.11648/j.wjfst.20200402.14},
url = {https://doi.org/10.11648/j.wjfst.20200402.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.wjfst.20200402.14},
abstract = {Chitosan is a bioactive polymer produced from shrimp and crab shells, etc. According to VASEP (Vietnam Association of Seafood Exporters and Producers), the production of raw shrimp cultured in Vietnam was about 800,000 tons in 2018. Therefore, the shrimp processing industry has generated about 320,000 tons of wastes, including heads and shells. If wastes are not utilized and managed in proper ways, it can lead to serious environmental problems. In our study, shrimp shells were used to produce chitosan and further obtained oligochitosan for application in food preservation. The cobalt-60 radiation technology has been used to segment chitosan into oligochitosan. The radiation dose applied to chitosan solution was in the range of 25 ÷ 50 kGy and in the range of 66 ÷ 166 kGy for chitosan flakes. The results showed that the chitosan solution had higher segmental efficiency compared to that of chitosan flakes. The antibacterial activities of oligosaccharide chitosan segmented from chitosan flakes were higher than those of oligosaccharide chitosan segmented from chitosan solution. The highest antibacterial activities were observed in the oligochitosan segmented from chitosan flakes at the radiation dose of 66 kGy for all tested bacteria: E. coli O157:H7, Salmonella typhimurium, Listeria monocytogenes, Staphylococcus aureus, Bacillus subtilis. In addition, oligochitosan segmented from chitosan flakes at the radiation dose of 66 kGy had higher antibacterial activities on bacteria gram (-) than bacteria gram (+). The strongest antibacterial activities on L. monocytogenes and B. subtilis at the concentration of 0.3125%.},
year = {2020}
}
TY - JOUR T1 - Oligosaccharide Chitosan: Viscosity, Molecular Weight, Antibacterial Activity, and Impact of γ Radiation AU - Vu Ngoc Boi AU - Nguyen Thi My Trang AU - Dang Xuan Cuong AU - Vu Thi Hoan AU - Le Hai Y1 - 2020/04/29 PY - 2020 N1 - https://doi.org/10.11648/j.wjfst.20200402.14 DO - 10.11648/j.wjfst.20200402.14 T2 - World Journal of Food Science and Technology JF - World Journal of Food Science and Technology JO - World Journal of Food Science and Technology SP - 40 EP - 45 PB - Science Publishing Group SN - 2637-6024 UR - https://doi.org/10.11648/j.wjfst.20200402.14 AB - Chitosan is a bioactive polymer produced from shrimp and crab shells, etc. According to VASEP (Vietnam Association of Seafood Exporters and Producers), the production of raw shrimp cultured in Vietnam was about 800,000 tons in 2018. Therefore, the shrimp processing industry has generated about 320,000 tons of wastes, including heads and shells. If wastes are not utilized and managed in proper ways, it can lead to serious environmental problems. In our study, shrimp shells were used to produce chitosan and further obtained oligochitosan for application in food preservation. The cobalt-60 radiation technology has been used to segment chitosan into oligochitosan. The radiation dose applied to chitosan solution was in the range of 25 ÷ 50 kGy and in the range of 66 ÷ 166 kGy for chitosan flakes. The results showed that the chitosan solution had higher segmental efficiency compared to that of chitosan flakes. The antibacterial activities of oligosaccharide chitosan segmented from chitosan flakes were higher than those of oligosaccharide chitosan segmented from chitosan solution. The highest antibacterial activities were observed in the oligochitosan segmented from chitosan flakes at the radiation dose of 66 kGy for all tested bacteria: E. coli O157:H7, Salmonella typhimurium, Listeria monocytogenes, Staphylococcus aureus, Bacillus subtilis. In addition, oligochitosan segmented from chitosan flakes at the radiation dose of 66 kGy had higher antibacterial activities on bacteria gram (-) than bacteria gram (+). The strongest antibacterial activities on L. monocytogenes and B. subtilis at the concentration of 0.3125%. VL - 4 IS - 2 ER -
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