Abstract
Classically enzymatic hydrolysis of starch is conducted in batch reactor in a two-step process including liquefaction and saccharification. This paper presents some ideas to simplify this process and decrease its cost. Because today, either saccharifying enzymes able to attack native starch or strong liquefying catalysts leading to sufficient low-molecular weight hydrolysates may be easily found on the market, one can imagine to develop a one-step process just involving a unique species of enzymes. The process can also be improved by operating in a continuous way and reusing enzymes. Among the various reactors, the continuous recycle membrane reactor, briefly CRMR, seems to be the most attractive since it allows to perform hydrolysis while separating at the same time syrups from enzymes and non-hydrolyzed starch. (Resume d'auteur)
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