The peroxidase/H2O2 system as a free radical-generating agent for gelling maize bran arabinoxylans: rheological and structural properties.
The peroxidase/H2O2 system as a free radical-generating agent for gelling maize bran arabinoxylans: rheological and structural properties.
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DOI:
10.3390/molecules16108410
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发表时间:
2011-10-10
期刊:
影响因子:
--
通讯作者:
Micard V
中科院分区:
文献类型:
--
作者:
Martínez-López AL;Carvajal-Millan E;Lizardi-Mendoza J;López-Franco YL;Rascón-Chu A;Salas-Muñoz E;Barron C;Micard V
The oxidative gelation of maize bran arabinoxylans (MBAX) using a peroxidase/H2O2 system as a free radical-generating agent was investigated. The peroxidase/H2O2 system led to the formation of dimers and trimer of ferulic acid as covalent cross-link structures in the MBAX network. MBAX gels at 4% (w/v) presented a storage modulus of 180 Pa. The structural parameters of MBAX gels were calculated from swelling experiments. MBAX gels presented a molecular weight between two cross-links (Mc), a cross-linking density (ρc) and a mesh size (ζ) of 49 × 103 g/mol, 30 × 10−6 mol/cm3 and 193 nm, respectively.
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