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Titolo:
Characterisation of starch from inner and peripheral parts of normal and waxy barley kernels
Autore:
Andersson, L; Fredriksson, H; Bergh, MO; Andersson, R; Aman, P;
Indirizzi:
Swedish Univ Agr Sci, Dept Food Sci, SE-75007 Uppsala, Sweden Swedish UnivAgr Sci Uppsala Sweden SE-75007 i, SE-75007 Uppsala, Sweden
Titolo Testata:
JOURNAL OF CEREAL SCIENCE
fascicolo: 2, volume: 30, anno: 1999,
pagine: 165 - 171
SICI:
0733-5210(199909)30:2<165:COSFIA>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANION-EXCHANGE CHROMATOGRAPHY; AMYLOPECTIN UNIT CHAINS; LIPID CONTENTS; AMYLOSE; GELATINIZATION; FRACTIONS; GRANULE;
Keywords:
amylose; barley endosperm; starch composition; waxy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Andersson, L Swedish Univ Agr Sci, Dept Food Sci, POB 7051, SE-75007 Uppsala, Sweden Swedish Univ Agr Sci POB 7051 Uppsala Sweden SE-75007 Sweden
Citazione:
L. Andersson et al., "Characterisation of starch from inner and peripheral parts of normal and waxy barley kernels", J CEREAL SC, 30(2), 1999, pp. 165-171

Abstract

A previous microscopical examination of barley kernels indicated an unevendistribution of amylose in the waxy cultivar SW7142-92, where the subaleurone layer was strongly stained by iodine. To explain these results, starch was isolated from fractions of inner and peripheral parts of kernels of thewaxy cultivar and a cultivar with normal starch. Analyses of amylose content showed a higher concentration of amylose in starch from the outer part of the waxy barley kernel, where the amylose, determined by a colorimetric method, made up 8.6% of the starch compared with 5.9% in the middle and 2.2%in the innermost part of the waxy kernel. This difference in amylose distribution was not observed in the normal starch kernel. The results were confirmed by gel permeation chromatography. No differences in amylopectin chainlength distribution were detected by size exclusion HPLC and HPAEC-PAD of amylopectins from different parts of the barley kernels. (C) 1999 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 11:14:12