Abstract：
:The fungi Botryodiplodia theobromae and Rhizopus oryzae produce extracellular amylase when grown on a liquid medium containing 2% (WN) soluble starch or cassava starch residue(CSR) (as starch equivalent), a waste generated after extraction of starch from cassava, as the sole carbon source. Using CSR as the sole carbon source, the highest amylase activity of 3.25 and 3.8 units (mg, glucose released x ml(-1) x h(-1)) were obtained in shake flask cultures during the late stationary phase of growth of B. theobromae and R. oryzae, respectively. These values were slightly lower than the values obtained using soluble starch as the carbon source. Maximum enzyme synthesis in CSR incorporated medium occurred at the growth temperature of 30 degrees C and pH 6.0. Presence of inorganic NH4+ salts like ammonium acetate and ammonium nitrate in culture medium yielded more amylase than the other nitrogen sources. Amylase(s) production in the controlled environment of a Table-Top glass Jar Fermenter (2-L capacity) was 4.8 and 5.1 units for B. theobromae and R. oryzae, respectively using CSR as the carbon substrate. It is concluded that CSR, a cheap agricultural waste obtained after starch extraction from cassava could replace soluble starch as carbon substrate for commercial production of fungal amylase(s).
journal_name
J Environ Bioljournal_title
Journal of environmental biologyauthors
Ray RCsubject
Has Abstractpub_date
2004-10-01 00:00:00pages
489-95issue
4eissn
0254-8704issn
2394-0379journal_volume
25pub_type
杂志文章abstract：:The present study was carried out to investigate the effect of colour pigments used for painting the decorative articles like idols, on the freshwater bivalve, Lamellidens marginalis. The effects of subchronic exposure were studied by the changes in the biochemical constituents like total protein, glycogen and lactic ...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-03-01 00:00:00
abstract：:Pesticides, spinosad, imidacloprid and neem oil are widely used both in residential and agricultural environments because of its broad spectrum insecticidal activity and effectiveness. The present study was undertaken to estimate genotoxicity of formulations of some pesticides in mice. Three pesticides of diverse grou...
journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:Local environment (temperature and relative humidity) affects reproductive biology in Pyrostegia venusta (Bignoniaceae) growing at Agra and Mysore. At Agra, the species flowers profusely during December to March, but fails to bear fruits. At Mysore, on the other hand it flowers during November to February and produces...
journal_title：Journal of environmental biology
pub_type： 杂志文章
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更新日期：2009-03-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
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更新日期：2005-04-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2007-04-01 00:00:00
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journal_title：Journal of environmental biology
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更新日期：2006-01-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-05-01 00:00:00
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journal_title：Journal of environmental biology
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更新日期：2016-09-01 00:00:00
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journal_title：Journal of environmental biology
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更新日期：2012-04-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-05-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-11-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2011-05-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2009-09-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-04-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2016-09-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2012-05-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2003-07-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2001-10-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-06-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2008-07-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2009-07-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2010-07-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2006-10-01 00:00:00
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journal_title：Journal of environmental biology
pub_type： 杂志文章
doi：
更新日期：2013-05-01 00:00:00
