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Sugars metabolism and ethanol production by different yeast strains from coffee...
Mussatto, Solange I.; Machado, Ercília M. S.; Carneiro, Lívia M.; Teixeira, J. A.Significant amounts of wastes are generated by the coffee industry, among of which, coffee silverskin (CS) and spent coffee grounds (SCG) are the most abundantly generated during the beans roasting and instant coffee preparation, respectively. This study evaluated the sugars metabolism and production of ethanol by three different yeast strains (Saccharomyces cerevisiae, Pichia stipitis and Kluyveromyces fragili...
Technological trends, global market, and challenges of bio-ethanol production
Mussatto, Solange I.; Dragone, Giuliano; Guimarães, Pedro M. R.; Silva, João Paulo A.; Carneiro, Lívia M.; Roberto, Inês Conceição; Vicente, A. A.Ethanol use as a fuel additive or directly as a fuel source has grown in popularity due to governmental regulations and in some cases economic incentives based on environmental concerns as well as a desire to reduce oil dependency. As a consequence, several countries are interested in developing their internal market for use of this biofuel. Currently, almost all bio-ethanol is produced from grain or sugarcane....
A study on chemical constituents and sugars extraction from spent coffee grounds
Mussatto, Solange I.; Carneiro, Lívia M.; Silva, João Paulo A.; Roberto, Inês Conceição; Teixeira, J. A.Spent coffee grounds (SCG), the residual materials obtained during the processing of raw coffee powder to prepare instant coffee, are the main coffee industry residues. In the present work, this material was chemically characterized and subsequently submitted to a dilute acid hydrolysis aiming to recover the hemicellulose sugars. Reactions were performed according to experimental designs to verify the effects o...
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