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Studies on rye starch properties and modification. Pt. 1. Composition and properties of rye starch granules

Abstract

Rye is considered as a potential raw material for starch industry. Starting from a survey of technical procedures of isolating starches from rye-flour and -grits investigations will be reported, which were performed on pilot plant- and laboratory-isolated rye starches. The present paper deals with its granule appearance and composition. A distribution of granule size between small granules ({<=} 10 {mu}m - 15%) and large granules ({>=} 11 ... {<=} 40 {mu}m = 85%) is typical for the totality of the starches. Differing distributions depend on the conditions of isolation: The entity of starch containing samples resulted from the latoratory procedures under investigation. Large-granule starch preparations were isolated in the pilot plant: The centrifuge-overflow contains the small-granule fraction which is high in impurities. Granule crystallinity amounts to 16%. The crystalline component - like in wheat and triticale starches - consists predominantly of A-polymorph - with up to 9% of the B-type. The isotherms of water exchange are of the cereal type. The contents of minor constituents largely relate to the small granule fraction which assembles the majority of crude protein, pentosans and lipids, which are difficult to remove. Lipid components in all fractions influence the results of linear chain-iodine interactions and  More>>
Authors:
Schierbaum, F; Radosta, S; Richter, M; Kettlitz, B; [1]  Gernat, C [2] 
  1. Zentralinstitut fuer Ernaehrung, Potsdam (Germany)
  2. Zentralinstitut fuer Molekularbiologie, Berlin (Germany)
Publication Date:
Sep 01, 1991
Product Type:
Journal Article
Reference Number:
DE-91-010133; EDB-91-151025
Resource Relation:
Journal Name: Starch/Staerke; (Germany); Journal Volume: 43:9
Subject:
09 BIOMASS FUELS; RYE; STARCH; AUTOLYSIS; CHEMICAL COMPOSITION; CHEMICAL PROPERTIES; HISTORICAL ASPECTS; PHYSICAL PROPERTIES; PILOT PLANTS; SCANNING ELECTRON MICROSCOPY; CARBOHYDRATES; CEREALS; CHEMICAL REACTIONS; DECOMPOSITION; ELECTRON MICROSCOPY; FUNCTIONAL MODELS; GRAMINEAE; LILIOPSIDA; MAGNOLIOPHYTA; MICROSCOPY; ORGANIC COMPOUNDS; PLANTS; POLYSACCHARIDES; REAGENTS; SACCHARIDES; 099000* - Biomass Fuels- Products & By-Products- (1990-)
OSTI ID:
5208720
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0038-9056; CODEN: STARD
Submitting Site:
DE
Size:
Pages: 331-339
Announcement Date:

Citation Formats

Schierbaum, F, Radosta, S, Richter, M, Kettlitz, B, and Gernat, C. Studies on rye starch properties and modification. Pt. 1. Composition and properties of rye starch granules. Germany: N. p., 1991. Web. doi:10.1002/star.19910430902.
Schierbaum, F, Radosta, S, Richter, M, Kettlitz, B, & Gernat, C. Studies on rye starch properties and modification. Pt. 1. Composition and properties of rye starch granules. Germany. doi:10.1002/star.19910430902.
Schierbaum, F, Radosta, S, Richter, M, Kettlitz, B, and Gernat, C. 1991. "Studies on rye starch properties and modification. Pt. 1. Composition and properties of rye starch granules." Germany. doi:10.1002/star.19910430902. https://www.osti.gov/servlets/purl/10.1002/star.19910430902.
@misc{etde_5208720,
title = {Studies on rye starch properties and modification. Pt. 1. Composition and properties of rye starch granules}
author = {Schierbaum, F, Radosta, S, Richter, M, Kettlitz, B, and Gernat, C}
abstractNote = {Rye is considered as a potential raw material for starch industry. Starting from a survey of technical procedures of isolating starches from rye-flour and -grits investigations will be reported, which were performed on pilot plant- and laboratory-isolated rye starches. The present paper deals with its granule appearance and composition. A distribution of granule size between small granules ({<=} 10 {mu}m - 15%) and large granules ({>=} 11 ... {<=} 40 {mu}m = 85%) is typical for the totality of the starches. Differing distributions depend on the conditions of isolation: The entity of starch containing samples resulted from the latoratory procedures under investigation. Large-granule starch preparations were isolated in the pilot plant: The centrifuge-overflow contains the small-granule fraction which is high in impurities. Granule crystallinity amounts to 16%. The crystalline component - like in wheat and triticale starches - consists predominantly of A-polymorph - with up to 9% of the B-type. The isotherms of water exchange are of the cereal type. The contents of minor constituents largely relate to the small granule fraction which assembles the majority of crude protein, pentosans and lipids, which are difficult to remove. Lipid components in all fractions influence the results of linear chain-iodine interactions and they must be removed to proceed from apparent to absolute polysaccharide indices. The absolute amylose contents amount to {approx equal} 25% for large granule samples and to 20-21% for small granule samples. The average chain-length of iodine binding helical regions was determined with 220-240 AGU. (orig.).}
doi = {10.1002/star.19910430902}
journal = {Starch/Staerke; (Germany)}
volume = {43:9}
journal type = {AC}
place = {Germany}
year = {1991}
month = {Sep}
}