Lactate inhibits hydrolysis of polysaccharide-rich particulate organic waste
Resource
Bioresource Technology 99 (7): 2476-2482
Journal
Bioresource Technology
Journal Volume
99
Journal Issue
7
Pages
2476-2482
Date Issued
2008
Date
2008
Author(s)
Abstract
This work reveals that, at pH 5-9, a lactate level of up to 30 g l-1 retarded hydrolysis rates in polysaccharide-rich potato samples. Lactate substantially limited carbohydrate hydrolysis and enhanced the hydrolysis of proteins. Statistical analysis identified the significance of numerous process factors in substrate hydrolysis. At fixed pH, dissociated lactate affected hydrolysis rates more strongly than its molecular counterpart. At a fixed lactate level, an alkaline environment favors carbohydrate hydrolysis; the effect of pH is secondary. Significant effects of lactate on substrate hydrolysis may be evident in fermenting organic substrates with high carbohydrate content. © 2007 Elsevier Ltd. All rights reserved.
Subjects
Acid toxicity; Anaerobic digestion; Fermentation; Hydrolysis; Partial least squares
Other Subjects
Anaerobic digestion; Fermentation; Hydrolysis; pH effects; Statistical methods; Acid toxicity; Partial least squares; Polysaccharides; lactic acid; organic matter; polysaccharide; Anaerobic digestion; Fermentation; Hydrolysis; pH effects; Polysaccharides; Statistical methods; anaerobiosis; ester; fermentation; hydrolysis; inhibition; pH; polysaccharide; potato; solid waste; statistical analysis; toxicity; article; carbohydrate analysis; dissociation; particulate matter; pH; potato; priority journal; protein hydrolysis; Hydrolysis; Lactates; Organic Chemicals; Polysaccharides; Solanum tuberosum
Type
journal article
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