Abstract
Kinetic data describing the decomposition of the outer sheath of kudzu vines (undergoing a solid fermentation process in a glass beaker of soil) have been analyzed to determine the two constants, K(m)/S(o) and V/S(o), where S(o) is the initial substrate concentration, K(m) the Michaelis constant, and V the maximum product rate. The kinetic data are expressed by a simple time-varying desheathing index, obtained from the number of spatula scrapings required to reach the desired hard cellulosic fibers (vascular bundles) of the plant. A simple relationship between the desheathing index, D.I. and the dimensionless product concentration, P/S(o), is proposed to relate the D.I. data and enzyme kinetic concentration data. Thus, the Michaelis-Menten enzyme kinetic parameters can be estimated from easily obtained physical (non-chemical data; the D.I.(t) measurements). This low energy process for processing vines into valuable fibers is similar to the traditional microbial method for recovering flax fibers for linen cloth, by retting of the flax plant vines, except there is no unbound liquid water present in the soil medium.
Published Version
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