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A multiscale three-zone reactive mixing model for engineering a scale separation in enzymatic hydrolysis of cellulose.

Abstract：

:This multiscale three-zone reactive mixing model provides a theoretical framework for engineering a scale separation in batch enzymatic hydrolysis of cellulose to strategize significant leaps in glucose yields. Formulated using the Liapunov-Schmidt method of the classical bifurcation theory, our model explores the multiscale spatiotemporal dynamics between the fundamental processes of macromixing (convection) and micromixing (diffusion) of the enzymes (Endoglucanase, Exoglucanase, β-glucasidase) and reducing sugars, adsorption and desorption of enzymes on the solid cellulosic substrates, and the product-inhibited liquid and solid phase enzymatic reactions that depolymerize microcrystalline cellulose (Avicel). The model is validated for a range of substrate loadings (2-5%) using our experimental results for the two asymptotic cases of no mixing and continuous mixing, as well as for the macro/micro scale-separated optimal mixing strategy that increases the glucose yield by up to 26% by macromixing completely for an initial period followed by micromixing for the remaining duration of the hydrolysis.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Chakraborty S,Raju S,Pal RK

doi

10.1016/j.biortech.2014.09.088

subject

Has Abstract

pub_date

2014-12-01 00:00:00

pages

140-147

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(14)01347-9

journal_volume

173

pub_type

杂志文章

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