The effect of extrusion screw-speed on the water extractability and molecular weight distribution of arabinoxylans from defatted rice bran

被引：22

作者：

Fadel, Abdulmannan ^{[1
,2
]}

Plunkett, Andrew ^{[1
]}

Ashworth, Jason ^{[2
]}

Mahmoud, Ayman M. ^{[3
,4
]}

Ranneh, Yazan ^{[5
]}

El Mohtadi, Mohamed ^{[2
]}

Li, Weili ^{[6
]}

机构：

[1] Manchester Metropolitan Univ, Sch Hlth Psychol & Social Care, Dept Food & Nutr, Righton Bldg,Cavendish St, Manchester M15 6BH, Lancs, England

[2] Manchester Metropolitan Univ, Fac Sci & Engn, Sch Healthcare Sci, Manchester M1 5GD, Lancs, England

[3] Charite Univ Med Berlin, CCR, Dept Endocrinol Diabet & Nutr, Berlin, Germany

[4] Beni Suef Univ, Fac Sci, Dept Zool, Div Physiol, Salah Salim St, Bani Suwayf 62514, Egypt

[5] Univ Putra Malaysia, Fac Med & Hlth Sci, Dept Nutr & Dietet, Serdang, Malaysia

[6] Univ Chester, Inst Food Sci & Innovat, Chester CH1 4BJ, Cheshire, England

来源：

JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE | 2018年 / 55卷 / 03期

关键词：

Rice bran; Dietary fibre; Water soluble arabinoxylans; Extrusion technology; PHYSICAL-PROPERTIES; WHEAT BRAN; CEREAL; PENTOSANS; BARLEY; FLOUR; FIBER; POLYSACCHARIDES; ANTIOXIDANT; COOKING;

D O I：

10.1007/s13197-017-3010-0

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Arabinoxylans (AXs) are major dietary fibre in cereals. Recently, AXs have attracted a great deal of attention because of their biological activities. These activities have been suggested to be related to the content of low molecular weight (Mw) AXs, in particular those with Mw below 32 kDa. Rice bran is a rich source of AXs. However, water extraction of AXs is difficult and often gives low yield. Extrusion processing has been used to increase the solubility of cereal dietary fibre. The aim of this research was to study the effect of extrusion screw-speeds (80 and 160) rpm on the extraction yield and Mw of water extractable AXs from rice bran. It was found that the extraction of AXs increased significantly with an increase in screw speed and was accompanied by a significant decrease in the Mw of AXs from extruded rice bran. The percentage of very low molecular weight AXs (0.79-1.58 kDa) significantly increased with increasing screw speed.

引用

页码：1201 / 1206

页数：6

共 25 条

[1] NUTRITIVE ACTIVITY OF SOLUBLE RICE BRAN ARABINOXYLANS IN BROILER DIETS [J].