| Processing affects the physicochemical properties of beta-glucan in oat bran cereal. | |
| | |
MedLine Citation:
|
PMID: 20527967 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The tendency of mixed linkage oat beta-glucan to form viscous solutions is generally assumed to be related to its ability to lower serum cholesterol levels in humans. However, the association has not been clearly demonstrated. To conduct a clinical trial showing the relationship between LDL-cholesterol levels and viscosity, a series of extruded oat bran cereals were prepared in which the beta-glucan had a range of molecular weights and modified solubility. An extraction protocol using physiological enzymes at 37 degrees C was used to estimate the effect that the cereals would have on gut viscosity. By reducing the molecular weight from 1,930,000 to 251,000 g/mol, the apparent viscosity in the physiological extract dropped from 2900 to 131 mPa.s (at 30 s(-1)). Microscopic examination showed that as the extrusion conditions were made more severe, to cause depolymerization, the integrity of the cell walls was lost and beta-glucan dispersed throughout the cereal. Differences in the hardness and density of the extruded cereals were also evident as the molecular weight was reduced. |
| | |
Authors:
|
Susan M Tosh; Yolanda Brummer; S Shea Miller; Alejandra Regand; Cheryl Defelice; Ruedi Duss; Thomas M S Wolever; Peter J Wood |
Related Documents
:
|
22063867 - Marinating as a technology to shift sensory thresholds in ready-to-eat entire male pork... 22470197 - Maturation of digestive function is retarded and plasma antioxidant capacity lowered in... 22006487 - The effect of vegetarian diet on selected essential nutrients in children. 22471457 - Suppressive effects of moringa oleifera lam pod against mouse colon carcinogenesis indu... 22063867 - Marinating as a technology to shift sensory thresholds in ready-to-eat entire male pork... 447467 - Vitamin e deficiency and the retina: photoreceptor and pigment epithelial changes. |
Publication Detail:
|
Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of agricultural and food chemistry Volume: 58 ISSN: 1520-5118 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2010 Jul |
Date Detail:
|
Created Date: 2010-07-07 Completed Date: 2010-10-21 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
|
Languages: eng Pagination: 7723-30 Citation Subset: IM |
Affiliation:
|
Guelph Food Research Centre, Agriculture and Agri-Food Canada, 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada. toshs@agr.gc.ca |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Avena sativa
/
chemistry* Food Handling / methods* Physicochemical Phenomena Plant Extracts / chemistry* Solubility beta-Glucans / chemistry* |
| Chemical | |
Reg. No./Substance:
|
0/Plant Extracts; 0/beta-Glucans |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Release of Bound Procyanidins from Cranberry Pomace by Alkaline Hydrolysis.
Next Document: Severe acute respiratory syndrome coronavirus papain-like novel protease inhibitors: design, synthes...