The method to convert hole plants composed by cellulose, hemicellulose and lignins uses ezimes and water to hydrolyse these material to soluble sugars, theses enzimes are true catalysers coming from mainly fungi and some bacteria. These enzimes are called cellulase and hemicellulase.
Many fungi has been isolated and are used by biotechnology companies to produce cellulases in large scale. One of the common uses of cellulases is to finish blue jeans with a soft "stoned washed" touch. Some fungi cellulase (the specific enzime for cellulose) come from Aspergillus niger, Trichoderma viride, Penicillium funiculosum, etc. they usually are a mixture of enzimes with different activities or rate of conversion of cellulose to fermentable sugars in a given time.The hemicellulases are produced as well by many of these strains for example Aspergillus niger. The hardest to degrade are the lignins, few fungi are able to do it soo, because lignins are toxic compouds to most of them. Many of these fungal enzimes has maximun activities on mild acid pH 4 to 7 and mild temperatures 20 - 50o C. Regards, Juan Woopex_oo1 wrote: -----Mensaje original----- De: womplex_oo1 [SMTP:[EMAIL PROTECTED] Enviado el: Jueves 29 de Agosto de 2002 12:48 PM Para: biofuel@yahoogroups.com Asunto: [biofuel] Cellulose - to - Sugar Preprocessing What energy efficient, eco-friendly methods exist to convert cellulose to sugar so that entire plants - leaves, stem, roots & all - can be fermented into ethanol? I've heard termites do this routinely... ------------------------ Yahoo! Groups Sponsor ---------------------~--> 4 DVDs Free +s&p Join Now http://us.click.yahoo.com/pt6YBB/NXiEAA/MVfIAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
