Barley with reduced ssii activity and starch containing...

Details Barley with reduced ssii activity and starch containing... Barley with reduced ssii activity and starch containing...

A - Human Necessities

01

H

A01H 5/00 (2006.01) A01H 5/10 (2006.01) C08B 30/00 (2006.01) C08B 30/04 (2006.01) C08L 3/02 (2006.01) C12N 9/10 (2006.01) C12N 15/29 (2006.01) C12N 15/82 (2006.01)

Patent

CA 2428259

Barley with reduced SSII activity has a starch structure with reduced amylopectin content and a consequent high relative amylose content. Additionally the grain has can have a relatively high .beta. glucan content. The structure of the starch may also be altered in a number of ways which can be characterised by having a low gelatinsation temperature but with reduced swelling. The viscosity of gelatinised starch of the starch is also reduced. There is a chain length distribution of the amylopectin content and a low crystallinity of the starch. The starch is also characterised by having high levels of lipid associated starch exhibiting very high levels of V form starch crystallinity. The dietary fibre content of the starch is high. This has desirable dietary and food processing characteristics.

Orge possédant une activité enzymatique SSII limitée et une structure d'amidon dont la teneur en amylopectine est limitée et, par conséquent, la teneur en amylose élevée. Le grain peut, de plus, posséder une teneur en .beta.-glucane relativement élevée. La structure de l'amidon peut également être modifiée de plusieurs façons pouvant être caractérisées par une température de gélification basse, mais par un gonflement limité. La viscosité de l'amidon gélifié est également réduite. La teneur en amylopectine est distribuée sur une longueur de chaîne et l'amidon est peu cristallin. Cet amidon est également caractérisé par des niveaux lipidiques élevés associés à des niveaux très élevés de cristaux en forme de V. La teneur en fibres diététiques de cet amidon est importante. Il possède des caractéristiques diététiques et des propriétés de conditionnement alimentaire avantageuses.

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