Journal of Food, Agriculture and Environment

Chemical composition of biotechnology byproducts produced in Iowa: Selected organic and inorganic forms

Author(s):

M. Ali Tabatabai

Recieved Date: 2009-01-12, Accepted Date: 2009-04-07

Abstract:

This work was carried out to assess the chemical composition, organic and inorganic, including sugars, protein and low-molecular-weight organic acids, of 11 diverse biotechnology byproducts by using extractions, ion chromatography and GC/MS. Results showed that the pH values ranged from 0 to 8.2, solid contents from 25 to 706 g kg^-1, organic C from 132 to 568 g kg^-1 and total N from 14 to 107 g kg^-1. The byproducts contained significant concentrations of P and S. Other chemical constituents were protein (0.15-21 g kg^-1), total sugars (0.41-91 g kg^-1), aliphatic acids (0.01 to 1198 g kg^-1) and aromatic acids (0.03 to 35 g kg^-1). The results suggest that application of biotechnology byproducts on agricultural land may alter some of the chemical and biochemical processes in soils, but with proper management any negative impacts can be alleviated.

Keywords:

Soil constituents, plant nutrients, soil chemistry, organic acids

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Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 2
Category: Environment
Pages: 793-798

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