Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags

Kumar, Shristi; Hatha, A. A. M.; Christi, K. S.

dc.creator	Kumar, Shristi
dc.creator	Hatha, A. A. M.
dc.creator	Christi, K. S.
dc.date	2007-05-07
dc.date.accessioned	2016-05-03T15:24:54Z
dc.date.available	2016-05-03T15:24:54Z
dc.identifier	http://revistas.ucr.ac.cr/index.php/rbt/article/view/5954
dc.identifier	10.15517/rbt.v55i3-4.5954
dc.identifier.uri	https://hdl.handle.net/10669/25536
dc.description	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.	en-US
dc.format	application/pdf
dc.language	eng
dc.publisher	Universidad de Costa Rica	en-US
dc.rights	Copyright (c) 2014 International Journal of Tropical Biology and Conservation	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 55 (3-4) September-December 2007	en-US
dc.source	Revista de Biología Tropical/International Journal of Tropical Biology and Conservation; Vol. 55 (3-4) September-December 2007	es-ES
dc.source	Revista Biología Tropical; Vol. 55 (3-4) September-December 2007	pt-PT
dc.source	2215-2075
dc.source	0034-7744
dc.source	10.15517/rbt.v55i3-4
dc.title	Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags	en-US
dc.title	Diversity and effectiveness of tropical mangrove soil microflora on the degradation of polythene carry bags	es-ES
dc.type	artículo original
dc.coverage	CRC	en-US

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