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Titolo:
Iso-oligosaccharide production by multiple forms of transferase enzymes from Aspergillus foetidus
Autore:
Wang, XD; Rakshit, SK;
Indirizzi:
Asian Inst Technol, Bioproc Technol Program, Klong Luang 12120, Pathumthani, Thailand Asian Inst Technol Klong Luang Pathumthani Thailand 12120 thani, Thailand
Titolo Testata:
PROCESS BIOCHEMISTRY
fascicolo: 8, volume: 35, anno: 2000,
pagine: 771 - 775
SICI:
1359-5113(200003)35:8<771:IPBMFO>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
FRUCTO-OLIGOSACCHARIDES; GLUCOSYLTRANSFERASE; FRUCTOSYLTRANSFERASE; AUREOBASIDIUM; PURIFICATION; SUCROSE; PANOSE;
Keywords:
Aspergillus foetidus; iso-oligosaccharides synthesis; transferase enzyme;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Rakshit, SK Asian Inst Technol, Bioproc Technol Program, GPO 4, Klong Luang 12120, Pathumthani, Thailand Asian Inst Technol GPO 4 Klong Luang Pathumthani Thailand 12120
Citazione:
X.D. Wang e S.K. Rakshit, "Iso-oligosaccharide production by multiple forms of transferase enzymes from Aspergillus foetidus", PROCESS BIO, 35(8), 2000, pp. 771-775

Abstract

Four fractions having transferase enzyme activity were obtained from the broth of Aspergillus foetidus by ammonium sulphate precipitation and DEAE-cellulose chromatography. The optimum temperature was 60 degrees C and pH stability in the range 4-6 for fractions. The pH optima, heat sensitivity and kinetic parameters for the four fractions were however not the same. All four enzyme fractions could not utilise lactose and cellobiose to synthesise iso-oligosaccharide and showed different transferase activity on maltose and sucrose for synthesis of iso-oligosaccharides. HPLC iso-oligosaccharide product analysis of these transferase enzymes revealed that the four forms of enzymes are distinct, producing oligosaccharides like panose, kestose andnystose or acting as hydrolytic enzymes depending on the conditions. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/03/20 alle ore 10:41:59