Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad de Costa Rica
2007
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| _version_ | 1876464160036880384 |
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| author | Shristi Kumar |
| author_facet | Shristi Kumar |
| contents | Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags Shristi Kumar A.A.M. Hatha K.S. Christi Biología Mangrove soil biodegradation plastic pollution hydrolytic enzymes microbial degradation The diversity and load of heterotrophic bacteria and fungi associated with the mangrove soil from Suva, Fiji Islands, was determined by using the plate count method. The ability of the bacterial isolates to produce various hydrolytic enzymes such as amylase, gelatinase and lipase were determined using the plate assay. The heterotrophic bacterial load was considerably higher than the fungal load. There was a predominance of the gram positive genus, Bacillus. Other genera encountered included Staphylococcus, Micrococcus, Listeria and Vibrio. Their effectiveness on the degradation of commercial polythene carry bags made of high density polyethylene (HDPE) and low density polyethylene (LDPE) was studied over a period of eight weeks in the laboratory. Biodegradation was measured in terms of mean weight loss, which was nearly 5 % after a period of eight weeks. There was a significant increase in the bacterial load of the soil attached to class 2 (HDPE) polythene. After eight weeks of submergence in mangrove soil, soil attached to class 1 and class 3 polythene mostly had Bacillus (Staphylococcus predominated in class 2 polythene). While most of the isolates were capable of producing hydrolytic enzymes such as amylase and gelatinase, lipolytic activity was low. Class 2 HDPE suffered the greatest biodegradation. Rev. Biol. Trop. 55 (3-4): 777-786. Epub 2007 December, 28. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44912352004 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3-4 Vol.55 |
| format | Artículo científico |
| id | redalyc_44912352004 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Universidad de Costa Rica |
| spellingShingle | Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags Shristi Kumar Biología Mangrove soil biodegradation plastic pollution hydrolytic enzymes microbial degradation Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags Shristi Kumar A.A.M. Hatha K.S. Christi Biología Mangrove soil biodegradation plastic pollution hydrolytic enzymes microbial degradation The diversity and load of heterotrophic bacteria and fungi associated with the mangrove soil from Suva, Fiji Islands, was determined by using the plate count method. The ability of the bacterial isolates to produce various hydrolytic enzymes such as amylase, gelatinase and lipase were determined using the plate assay. The heterotrophic bacterial load was considerably higher than the fungal load. There was a predominance of the gram positive genus, Bacillus. Other genera encountered included Staphylococcus, Micrococcus, Listeria and Vibrio. Their effectiveness on the degradation of commercial polythene carry bags made of high density polyethylene (HDPE) and low density polyethylene (LDPE) was studied over a period of eight weeks in the laboratory. Biodegradation was measured in terms of mean weight loss, which was nearly 5 % after a period of eight weeks. There was a significant increase in the bacterial load of the soil attached to class 2 (HDPE) polythene. After eight weeks of submergence in mangrove soil, soil attached to class 1 and class 3 polythene mostly had Bacillus (Staphylococcus predominated in class 2 polythene). While most of the isolates were capable of producing hydrolytic enzymes such as amylase and gelatinase, lipolytic activity was low. Class 2 HDPE suffered the greatest biodegradation. Rev. Biol. Trop. 55 (3-4): 777-786. Epub 2007 December, 28. 2007 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44912352004 en http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.3-4 Vol.55 |
| title | Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags |
| topic | Biología Mangrove soil biodegradation plastic pollution hydrolytic enzymes microbial degradation |
| url | https://www.redalyc.org/articulo.oa?id=44912352004 |