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Serge Hiligsmann
Serge Hiligsmann
Belgium
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Research Article
Impact of Different Plant Secondary Metabolites Addition: Saponin, Tannic Acid, Salicin and Aloin on Glucose Anaerobic Co-Digestion
Author(s): Ngoma PH, Hiligsmann S, Zola ES, Ongena M and Thonart P Ngoma PH, Hiligsmann S, Zola ES, Ongena M and Thonart P
Vegetal waste and some wastewater of agro-food industries contain plant secondary metabolites (PSMs). It was showed in nutritional researches that these substances such as saponins and tannins reduced the methane production in the rumen. To our knowledge no study was done in the waste treatment domain to evaluate the inhibitory effect of the principal glycosidic metabolites from the wastewater or vegetal waste on their own methaneproducing anaerobic digestion. Therefore in this paper BMP tests were carried out at 30°C with four commercial PSMs (CPSMs) in mixture with glucose monohydrate (Gl) used as control sample. These CPSMs were saponin from Quilaja saponaria Molina Pract (Sap), tannic acid (Tan), salicin (Sal) and aloin from Curacao Aloe (Alo) representing respectively saponins, tannins, alcoholic glycosides and anthraquinones sources. Acidogenesis and acetogenesis were recorded for .. View More»
DOI: 10.4172/2167-7972.1000113