Enzymatic cross-linking of alkali extracted arabinoxylans: gel rheological and structural characteristics.

Enzymatic cross-linking of alkali extracted arabinoxylans: gel rheological and structural characteristics.
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DOI:
10.3390/ijms12095853
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发表时间:
2011
影响因子:
5.6
通讯作者:
Rascón-Chu A
Rascón-Chu A
中科院分区:
生物学2区
文献类型:
--
作者:
Berlanga-Reyes CM;Carvajal-Millan E;Lizardi-Mendoza J;Islas-Rubio AR;Rascón-Chu A

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Ferulated arabinoxylans were alkali-extracted from wheat bran at different incubation times (0.0, 0.5, 1.0, 1.5 and 2.0 h). Wheat bran ferulated arabinoxylans (WBAX) arabinose-to-xylose ratio, ferulic acid content, intrinsic viscosity and viscosimetric molecular weight values decreased as the incubation time of extraction increased. WBAX enzymatic cross-linking capability was affected by incubation time while an increase in WBAX concentration from 5 to 6% (w/v) favored gelation. The WBAX gels formed presented a macroporous structure with mesh size ranging from 40 to 119 nm and hardness values varying from 1.7 to 5 N.
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