Molecules 2011, 16(10), 8410-8418; doi:10.3390/molecules16108410
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The Peroxidase/H2O2 System as a Free Radical-Generating Agent for Gelling Maize Bran Arabinoxylans: Rheological and Structural Properties

Ana L. Martínez-López 1 , Elizabeth Carvajal-Millan 1,* email, Jaime Lizardi-Mendoza 1 , Yolanda L. López-Franco 1 , Agustín Rascón-Chu 2 , Erika Salas-Muñoz 3 , Cécile Barron 4  and Valérie Micard 4
1 CTAOA, Laboratory of Biopolymers, Research Center for Food and Development, CIAD, AC., Hermosillo, Sonora 83000, Mexico 2 CTAOV, Research Center for Food and Development, CIAD, AC., Hermosillo, Sonora 83000, Mexico 3 Chemistry Faculty, Autonomous University of Chihuahua, Chihuahua 31125, Mexico 4 U.M.R. Ingénierie des Agropolymères et des Technologies Emergentes. SupAgro / INRA, 2 Pl Viala Montpellier 34060 cedex 01, France
* Author to whom correspondence should be addressed.
Received: 18 August 2011; in revised form: 22 September 2011 / Accepted: 22 September 2011 / Published: 10 October 2011
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Abstract: 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 (x) of 49 × 103 g/mol, 30 × 10−6 mol/cm3 and 193 nm, respectively.
Keywords: arabinoxylan gels; free radicals; oxidative cross-linking

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Cite This Article

MDPI and ACS Style

Martínez-López, A.L.; Carvajal-Millan, E.; Lizardi-Mendoza, J.; López-Franco, Y.L.; Rascón-Chu, A.; Salas-Muñoz, E.; Barron, C.; Micard, V. The Peroxidase/H2O2 System as a Free Radical-Generating Agent for Gelling Maize Bran Arabinoxylans: Rheological and Structural Properties. Molecules 2011, 16, 8410-8418.

AMA Style

Martínez-López AL, Carvajal-Millan E, Lizardi-Mendoza J, López-Franco YL, Rascón-Chu A, Salas-Muñoz E, Barron C, Micard V. The Peroxidase/H2O2 System as a Free Radical-Generating Agent for Gelling Maize Bran Arabinoxylans: Rheological and Structural Properties. Molecules. 2011; 16(10):8410-8418.

Chicago/Turabian Style

Martínez-López, Ana L.; Carvajal-Millan, Elizabeth; Lizardi-Mendoza, Jaime; López-Franco, Yolanda L.; Rascón-Chu, Agustín; Salas-Muñoz, Erika; Barron, Cécile; Micard, Valérie. 2011. "The Peroxidase/H2O2 System as a Free Radical-Generating Agent for Gelling Maize Bran Arabinoxylans: Rheological and Structural Properties." Molecules 16, no. 10: 8410-8418.

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