Bioengineering and Application of Novel Glucose Polymers

Development of reduced-fat mayonnaise using 4αGTase-modified rice starch and xanthan gum

“…In particular, the use of carbohydrate enzymes for starch modification is gaining research interest because carbohydrate enzymes can be employed to produce glucose polymers with controlled molecular size and structures by changing the type of enzyme, substrate and the reaction conditions. Thus, this approach can be used to manufacture novel glucose polymers with applicable value [5][6][7]. Previous research revealed that a thermostable 4-␣-glucanotransferase (also called amylomaltase or d-enzyme) can modify starch polymers and produce thermoreversible starch gels 0141-8130/$ -see front matter © 2009 Elsevier B.V. All rights reserved.…”

Gel texture and chain structure of amylomaltase-modified starches compared to gelatin

“…Both AM and BE have recently been highlighted as important in producing starches with new functionalities, which are expected to find specific applications in the food industry (Fujii et al, 2003).…”

Starch phosphorylase: Role in starch metabolism and biotechnological applications

“…Amylose is currently not available as an industrial raw material, since its separation from amylopectin in starch is difficult and has a low yield. As the molecular size of amylose can be controlled by Glc-1-P/primer molar ratio, the SP is a potentially good system for its manufacturing (Fujii et al, 2003;van der Vlist et al, 2008). Moreover, since SP can synthesize only amylose, the desired characteristic ratio of amylose to amylopectin for industrial starch can be maneuvered.…”

“…The -glucan phosphorylases, in general, and SP, in particular, can be used for the enzymatic production of Glc-1-P, to synthesize amylose and a variety of novel glucans, for designing starch, and development of transgenic varieties with modified starches (Fujii et al, 2003(Fujii et al, , 2007Kossmann and Frohberg, 2004;Morell and Myers, 2005;Kuriki, 2006a, 2007;d'Hulst et al, 2007;van der Vlist et al, 2008). Here, SP has an advantage over other enzymes, as starch is inexpensive and enzymatic reaction with SP is more economical indicating its industrial potential.…”