Food Preservation Science
Online ISSN : 2186-1277
Print ISSN : 1344-1213
ISSN-L : 1344-1213
Complexation of Vitamin E in Grains by Using Cyclomaltodextrin Glucanotransferase
Shoji MIWAKatsuhiko MIKUNIMakoto MIURAShoichi KOBAYASHIKoji TAKAHASHI
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2014 Volume 40 Issue 4 Pages 195-200

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Abstract

 Cyclomaltodextrin glucanotransferase (CGTase) has been efficiently applied to complexation of vitamin E in brown rice (Rice) and unpolished six-row barley (Barley). The results are shown as follows. ① Rice showed a higher vitamin E content than that of Barley, whereas the composition and contents of tocopherol and tocotrienol of Rice were similar to those of Barley. ② Production of cyclodextrin (CD) from Rice with CGTase showed a tendency to increase in cultivars having lower amylose content. ③ CD was produced from Rice and Barley with CGTase below 30% ethanol concentration. The composition of CD depended on the ethanol concentration of and raw material used. ④ The vitamin E-CD complex was produced below 30% of ethanol concentration by treating Rice and Barley with CGTase, and the content of vitamin E in the complex increased with increasing in ethanol concentration. ⑤ The complex exhibited a high water-solubility (about 90% or higher) below 30% ethanol concentration. ⑥ The complex produced in the presence of ethanol exhibited that the antioxidant capacity increased with increasing ethanol concentration to 30%.

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© 2014 Japan Association of Food Preservation Scientists
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