Alcohol oxidase, a flavoprotein from several Basidiomycetes species. Crystallization by fractional precipitation with polyethylene glycol

Production of alcohol oxidase by several Basidiomycetes

An Amber MPH-Cerelose medium was devised on which the unidentified basidiomycete B 191039 produced high titers of alcohol oxidase in shake cultures. Another, fully synthetic medium was developed on which the production was nearly as good, but very slow. No cofactors were required to produce this flavine adenine dinucleotide-containing enzyme. The B 191039 organism underwent frequent mutations. The mutant forms were morphologically distinct from the parent strain and elaborated little or no alcohol oxidase. Several other basidiomycetes were shown to produce alcohol oxidase in submerged culture.

Exclusion of protein from high polymer media. I. Derivation of probability distribution for the number of fiber centers within any sphere of radius r

Ogston's (1958) fiber model based on Poisson's distribution function gives the average number of fibers making contact and no contact inside a sphere of radius r. The probability of penetration of spherical particles within a fibrous network was derived from the moment generating function [Formula: see text] A is the number of particles that intrude into a sphere of radious r. alpha(mu) is the probability that a particle, whose center is mu units away from the origin, intrudes into a sphere of radius r. A has a Poisson distribution with a mean value E(A) = 4pinualpha(mu)mu(2)dmu. The theoretical derivation of the distribution function of A gives Ogston's fiber model.