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Titolo:
Air classification of barley flours
Autore:
Andersson, AAM; 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:
CEREAL CHEMISTRY
fascicolo: 4, volume: 77, anno: 2000,
pagine: 463 - 467
SICI:
0009-0352(200007/08)77:4<463:ACOBF>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
GLUCAN-ENRICHED FRACTIONS; CHEMICAL-COMPOSITION; MILLING STREAM; PROTEIN-GLUCAN; WAXY; SAMPLES; OATS; MICROSTRUCTURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Andersson, AAM Swedish Univ Agr Sci, Dept Food Sci, POB 7051, SE-75007 Uppsala, Sweden Swedish Univ Agr Sci POB 7051 Uppsala Sweden SE-75007 eden
Citazione:
A.A.M. Andersson et al., "Air classification of barley flours", CEREAL CHEM, 77(4), 2000, pp. 463-467

Abstract

Flour samples from seven different barleys, including covered and naked barleys and barleys with normal, waxy, and high-amylose starches, as well, asthe high-fiber barley Prowashonupana, were impact-milled and air-classified in a pilot unit. Six fractions (F1-F5 and C5) with increasing particle size were obtained from each barley All fractions were analyzed for ash, protein, starch, dietary fiber, and total and unextractable beta-glucan. Ash was enriched in C5; covered barleys (4.3-5.7% of dry matter) had a higher ashcontent than naked barleys (2.1-3.2%). Starch was enriched in F4 for normal and waxy barleys (72-79%) and in F3 for high-amylose barleys (72-75%). Protein was enriched in F1 (14-26%) for the different barleys. beta-glucan was enriched in F5 and C5 (7-23%), Prowashonupana had the highest value. The extractability of beta-glucan decreased with increasing particle size, probably because of lower amounts of endogenous beta-glucanase and poorer availability of the substrate in larger particles.

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Documento generato il 06/04/20 alle ore 07:47:54