Cycloisomaltooligosaccharides from starch and their production and control mechanisms

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450133
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Applied biochemistry
• Research Institution: National Agriculture and Food Research Organization
• Principal Investigator: FUNANE Kazumi 国立研究開発法人農業・食品産業技術総合研究機構, 食品研究部門 食品生物機能開発研究領域, 主席研究員 (90353953)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 環状イソマルトオリゴ糖 / 環状イソマルトオリゴ糖グルカノトランスフェラーゼ / 澱粉 / デキストラン

Outline of Final Research Achievements

Cyclioisomaltooligosaccharide (CI)-producing bacteria, Paenibacillus sp. 598K produces CIs from starch with its two enzymes of cycloisomaltooligosaccharide glucanotransferase and dextranglucanase. The strain 598K release these two extracellular enzymes into the medium to produce CIs, intakes CIs, and then brakes them down with the intracellular dextranase, and finally use them as a source of nutrition. Another CI-producing bacterial strain Bacillus circulans T-3040 does not have dextranase to digest CIs. The strain T-3040 might not be able to utilize CIs, but it may be suitable for commercial CI-producing bacterial strain.

Free Research Field

酵素科学、微生物学