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Titolo:
Two-phase model of the kinetics of growth of Rhizopus oligosporus in membrane culture
Autore:
Ikasari, L; Mitchell, DA;
Indirizzi:
Univ Fed Parana, Dept Engn Quim, BR-80035050 Curitiba, Parana, Brazil UnivFed Parana Curitiba Parana Brazil BR-80035050 BCtiba, Parana, Brazil
Titolo Testata:
BIOTECHNOLOGY AND BIOENGINEERING
fascicolo: 6, volume: 68, anno: 2000,
pagine: 619 - 627
SICI:
0006-3592(20000620)68:6<619:TMOTKO>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLID-STATE FERMENTATION; HEAT-TRANSFER; MATHEMATICAL-MODEL; MYCELIAL GROWTH; FUNGAL GROWTH;
Keywords:
membrane-filter culture; Rhizopus oligosporus; fungal growth kinetics; symmetric branching model; solid-state fermentation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Mitchell, DA Univ Fed Parana, Setor Ciencias Agr, Rua Funcionarios,1540,Juveve, BR-80035050 Curitiba, Parana, Brazil Univ Fed Parana Rua Funcionarios,1540,Juveve Curitiba Parana Brazil BR-80035050 BC
Citazione:
L. Ikasari e D.A. Mitchell, "Two-phase model of the kinetics of growth of Rhizopus oligosporus in membrane culture", BIOTECH BIO, 68(6), 2000, pp. 619-627

Abstract

An empirical model was developed to describe a growth profile occurring insolid-state fermentation (SSF), namely that consisting of an initial period of rapid acceleration followed by an extended period of deceleration. This kinetic profile is not adequately described by the logistic model. The empirical model is based on the concept of active and nonactive hyphal segments. Exponential and deceleration growth phases are modeled. The model parameters can be determined directly from the dry-weight profile and they depend on the growth medium present. The model suggests that, at the instant theculture enters the deceleration phase, there is a 71% to 86% decrease in the number of actively extending hyphal tips and that, during the deceleration phase, there is an exponential decay in the number of active hyphal segments, with a first-order decay constant of 0.042 to 0.072 h(-1). (C) 2000 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/07/20 alle ore 08:00:30