Effect of Degree of Acetylation on Gelation of Konjac Glucomannan
β Scribed by Gao, Shanjun; Nishinari, Katsuyoshi
- Book ID
- 118013639
- Publisher
- American Chemical Society
- Year
- 2004
- Tongue
- English
- Weight
- 431 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1525-7797
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## Abstract Fractions of konjac glucomannan (KGM) with various viscosityβaverage molecular weights (__M__~v~) ranging from 4.00 Γ 10^5^ to 2.50 Γ 10^6^ were prepared by hydrolysis degradation in hydrochloride acid/ethanol. Effect of __M__~v~ of KGM on the critical gelation temperature (__T__~gel~)
The deacetylation and gelation of konjac glucomannan (KGM) following alkali addition was investigated by Fourier transform infrared, while the rheological properties of KGM with different molecular weights were studied by dynamic viscoelastic measurements in shear mode and penetration force tests. I