Chemical and Microbial Dynamics during Composting of Herbal Pharmaceutical Industrial Waste

Zameer, Farhan and Meghashri, S. and Shubha Gopal, and Rao, B. Raghavendra (2010) Chemical and Microbial Dynamics during Composting of Herbal Pharmaceutical Industrial Waste. E-JOURNAL OF CHEMISTRY, 7 (1). pp. 143-148.

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A study was performed to analyze the dynamics of chemical, biochemical and microbial parameters during composting of herbal pharmaceutical waste. All the parameters were analyzed at three different intervals of composting (1(st), 15(th) and 60(th) days). Temperature of the compost pile was initially high (46.2 degrees C) and on 60(th) day it dropped to 33.3 degrees C. The pH of the sample was initially acidic (2.39) and with the progress of decomposition gradually changed to neutrality (7.55). Electrical conductivity (EC) value was high (3.8 mS) during last day of composting compared to other stages. The activity of degradative enzymes namely amylase, invertase and urease were initially high (4.1, 4.79 mg of glucose/g/h and 0.19 mg of ammonia/g/h respectively) while it decreased with composting. The beneficial microbial load was initially low and very high at the last stages of decomposition. The bioassay studies using compost extracts revealed that the 60(th) day old sample was not phytotoxic in nature.

Item Type: Article
Uncontrolled Keywords: Herbal pharmaceutical waste; Amylase; Invertase; Urease; Bioassay
Subjects: Agriculture Biological Sciences > Microbiology
University of Mysore > PG Campuses > Manasagangotri, Mysore > Agriculture Biological Sciences > Microbiology
Divisions: PG Campuses > Manasagangotri, Mysore > Microbiology
Depositing User: Users 7 not found.
Date Deposited: 02 Apr 2013 09:51
Last Modified: 16 May 2015 10:34

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