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Novel slowly digestible storage carbohydrate

A carbohydrate, slow technique used in the field of preparation of stored carbohydrates

Inactive Publication Date: 2010-01-20
NEDERLANDSE ORG VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK (TNO)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, none of these patent applications address the role of the amylopectin and alpha-limiting dextrin contents of these starches and their effect on digestibility

Method used

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  • Novel slowly digestible storage carbohydrate
  • Novel slowly digestible storage carbohydrate
  • Novel slowly digestible storage carbohydrate

Examples

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Embodiment 1

[0055] Production of modified starch

[0056] Maximally branched products were prepared from regular food grade potato starch and waxy potato starch by co-incubating with 400 U of branching enzyme activity per gram of starch at 68°C for 20 hours. The starch slurry is prepared by suspending the starch in 2 2H 2 O in demineralized water and heated in a water bath at 100°C for 20 minutes with stirring; the resulting starch solution was then autoclaved at 121°C for 20 minutes. Add the branching enzyme after cooling the substrate to the desired incubation temperature. After 20 hours, the reaction was stopped by heating the incubation mixture to 100°C. Subsequently, branched dextran was obtained by ethanol precipitation followed by drying. Ethanol was added to a final concentration of 90%, and the ethanol / starch suspension was mixed gently for 50 minutes. The modified starch is then filtered on filter paper. The material retained on the filter paper was washed with 100% ethano...

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Abstract

The present invention relates to slowly digestible storage carbohydrates (starch, glycogen) having a branching degree of at least 8.5% and a side chain composition comprising at least 10 % of DP 5-7. Said slowly digestible carbohydrates can be produced by treating the substrate (glycogen, starch) from a native source with a glycogen branching enzyme derived from Rhodothermus obamensis, Rhodothermus marinus, Deinococcus radiodurans or Deinococcus geothermalis.

Description

technical field [0001] The present invention relates to the preparation of slowly digestible storage carbohydrates, more particularly to the preparation of slowly digestible starch or glycogen using glycogen branching enzymes. Background technique [0002] As a polymer of glucose, starch is one of the main sources of energy in the human body. During digestion, glucose from the starch in the small intestine is transferred into the blood, causing blood glucose levels to rise. In response to this increase in glucose levels, the body produces greater amounts of insulin to store glucose as glycogen in the liver and muscles. [0003] The digestive properties of starches in the small intestine fall into three categories: rapidly digestible starches, slowly digestible starches, and nondigestible starches (resistant starches). Fast and slowly digestible starches are distinguished by the so-called glycemic response, ie the speed with which glucose is released into the blood. Resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/0522A23L1/30A23L1/29C12P19/04C08B35/00A23L33/00
CPCA23V2002/00D21H17/28D21H19/54A23L1/296A23L1/30C08B35/00D21H27/10A23L1/05223C08B37/0009A23L29/219A23L33/10A23L33/40A23V2200/328A23V2200/33A23V2250/5118
Inventor 马尔克·乔斯·埃利塞·科尔内利斯·凡德马雷拉多伊德·哈科博·宾纳玛辛迪·塞梅因彼得·利克尔·布瓦尔德彼得·桑得斯
Owner NEDERLANDSE ORG VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK (TNO)
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