Lipid removal enhances separation of oat grain cell wall material from starch and protein

被引：62

作者：

Sibakov, J. ^{[1
]}

Myllymaki, O. ^{[1
]}

Holopainen, U. ^{[1
]}

Kaukovirta-Norja, A. ^{[1
]}

Hietaniemi, V. ^{[2
]}

Pihlava, J. M. ^{[2
]}

Poutanen, K. ^{[1
]}

Lehtinen, P. ^{[1
]}

机构：

[1] VTT, VTT Tech Res Ctr Finland, FI-02044 Espoo, Finland

[2] MTT Agrifood Res Finland, FI-31600 Jokioinen, Finland

来源：

JOURNAL OF CEREAL SCIENCE | 2011年 / 54卷 / 01期

基金：

芬兰科学院;

关键词：

Oats; Beta-glucan; Supercritical carbon dioxide extraction; Air classification; BETA-GLUCAN; BRAN; FRACTIONS; BARLEY;

D O I：

10.1016/j.jcs.2011.04.003

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Effects of lipid removal on the fine milling and air classification processing of oats were studied. Lipid removal by supercritical carbon dioxide (SC-CO2) extraction enabled concentration of the main components of oats starch, protein, lipids and cell walls - into specific fractions. Using defatted oats as raw material, the highest beta-glucan concentration of the cell wall-enriched fraction was 33.9% as compared to 17.1% without lipid removal. This was probably due to more efficient milling yielding smaller particles, and release of starchy material from cellular structures during milling of defatted oats, resulting in better classification. The removal of lipids also enabled separation of an oat protein concentrate with a protein concentration of 73.0% and a mass yield of 5.0%. A trial with 2310 kg of oat groats showed that the process based on defatting and dry fractionation was also industrially applicable. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：104 / 109

页数：6

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