Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Simultaneous application of phytase and xylanase to broiler feeds based onwheat: in vitro measurements of phosphorus and pentose release from wheatsand wheat-based feeds
Autore:
Zyla, K; Gogol, D; Koreleski, J; Swiatkiewicz, S; Ledoux, DR;
Indirizzi:
Univ Agr, Dept Food Biotechnol, PL-31425 Krakow, Poland Univ Agr Krakow Poland PL-31425 Food Biotechnol, PL-31425 Krakow, Poland Inst Zootech, Res Farm Balice, Dept Anim Nutr Brzezie, PL-32080 Zabierzow,Poland Inst Zootech Zabierzow Poland PL-32080 rzezie, PL-32080 Zabierzow,Poland Univ Missouri, Anim Sci Res Ctr 112, Columbia, MO 65211 USA Univ MissouriColumbia MO USA 65211 i Res Ctr 112, Columbia, MO 65211 USA
Titolo Testata:
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
fascicolo: 13, volume: 79, anno: 1999,
pagine: 1832 - 1840
SICI:
0022-5142(199910)79:13<1832:SAOPAX>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
IN-VITRO; ENZYMATIC DEPHOSPHORYLATION; MICROBIAL PHYTASE; INTESTINAL VISCOSITY; DIETS; MEAL; AVAILABILITY; ENZYMES; POULTRY; SUPPLEMENTATION;
Keywords:
in vitro procedure; phytase; xylanase; protease; wheat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
37
Recensione:
Indirizzi per estratti:
Indirizzo: Zyla, K Univ Agr, Dept Food Biotechnol, 29 Listopada Ave 46, PL-31425 Krakow, Poland Univ Agr 29 Listopada Ave 46 Krakow Poland PL-31425 rakow, Poland
Citazione:
K. Zyla et al., "Simultaneous application of phytase and xylanase to broiler feeds based onwheat: in vitro measurements of phosphorus and pentose release from wheatsand wheat-based feeds", J SCI FOOD, 79(13), 1999, pp. 1832-1840

Abstract

An in vitro procedure that simulated digestion in growing broilers was tested to predict phosphorus availability and arabinoxylan hydrolysis in samples of nine wheat varieties and in a wheat-based diet. Amounts of dialysablephosphorus freed from wheat samples correlated with activities of endogenous phytase (R = 0.913; p < 0.0001), whereas amounts of pentoses released were correlated with viscosities of the digested samples (R = 0.899; p < 0.0001). Differences in phosphorus release resulting from graded levels of microbial phytase added to feeds that were either autoclaved or not autoclaved revealed a decreasing role of endogenous phytase in dephosphorylation as levels of microbial phytase supplementation grew. Amounts of pentoses released from feeds containing two different xylanase preparations reflected literature data on different in vivo efficacies of those preparations. Simultaneous addition of phytase and xylanase affected phosphorus release in a manner that depended upon the form of xylanase preparation used (liquid or powder), There was a positive influence of acid protease on both phytate and arabinoxylan hydrolysis in feeds supplemented with phytase. Effects observed by the in vitro procedures corresponded to in vivo phenomena described in the literature. (C) 1999 Society of Chemical Industry.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 09:23:15