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Biokemistri
Nigerian Society for Experimental Biology
ISSN: 0795-8080
Vol. 18, No. 2, 2006, pp. 105-109
Bioline Code: bk06016
Full paper language: English
Document type: Research Article
Document available free of charge

Biokemistri, Vol. 18, No. 2, 2006, pp. 105-109

 en Preliminary Studies On Ethanol Production From Garcinia Kola check for this species in other resources (Bitter Kola) Pod: Effect Of Sacharification And Different Treatments On Ethanol Yield
Akin-Osanaiye, Bukola C.; Nzelibe, Humphrey C. & Agbaji, Abel S.

Abstract

A study on yeast fermentation of bitter kola pod( agricultural waste) was carried out using dried active bakers' yeast ( Saccharomyces cerevisiae check for this species in other resources )and brewer's yeast ( Saccharomyces carlsbergensis check for this species in other resources ) Effects of saccharification using Aspergillus niger check for this species in other resources and different treatments on the waste as they relate to the optimization of the ethanol production were investigated. The reducing sugar in the waste was increased after 24-48 hours of sacharification using Aspergillus niger, fresh bitter kola waste recorded 4.4 - 8.0g/100g of the waste, while the partially fermented bitter kola waste gave the value in the range of 5.6 - 6.8g/100g. Baker's yeast gave a higher ethanol yield than Brewer's yeast. Different treatments of bitter kola pod revealed that addition of nutrient supplement enhanced the ethanol yield; however, 48 hours of saccharification significantly improved the ethanol yield at p ≤ 0.05.

Keywords
bitter kola waste, Baker's and Brewer's yeast, saccharification, Aspergillus niger, treatments

 
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