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Change in textural properties, starch digestibility, and aroma of nonfried instant noodles by substitution of konjac glucomannan

Authors
Park, Eun YoungKim, Hyo YeongShin, Hye-YoungJeon, Young-IlKim, Jae-MinKim, SemigaKim, Jong-Yea
Issue Date
7월-2019
Publisher
WILEY
Keywords
glucomannan; nonfried instant noodles; physicochemical properties
Citation
CEREAL CHEMISTRY, v.96, no.4, pp.784 - 791
Indexed
SCIE
SCOPUS
Journal Title
CEREAL CHEMISTRY
Volume
96
Number
4
Start Page
784
End Page
791
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/64251
DOI
10.1002/cche.10180
ISSN
0009-0352
Abstract
Background and objectives The physicochemical properties, starch digestibility, and aroma profile of nonfried instant noodles with various glucomannan contents (0%, 0.5%, 1%, and 2%) were investigated to evaluate the effects of glucomannan on overall quality. Findings The substitution of glucomannan did not induce significant changes in the cooking properties (such as cooking loss and rehydration) and microstructure of the nonfried instant noodles relative to those of the control. The springiness, gumminess, tensile strength, and adhesiveness of the cooked noodles were not significantly changed by the substitution of glucomannan, while the hardness of cooked noodles decreased from 2,726 to 1,850 g as the level of glucomannan increased. For in vitro starch digestive properties, the resistant starch content of noodles increased from 1.61% to 4.57% as the level of glucomannan increased. Electronic nose analysis revealed that the substitution of glucomannan altered the aroma profile of nonfried instant noodle compared with that of the control and commercial konjac noodles. Conclusions The substitution of glucomannan influenced texture (especially, hardness), aroma, and starch digestibility of nonfried instant noodles. Significance and novelty The substitution of glucomannan in nonfried instant noodles can be effective approach to improve the textural properties and health-promoting benefit of nonfried instant noodles.
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