Maize arabinoxylan gels as protein delivery matrices

Molecules. 2009 Apr 8;14(4):1475-82. doi: 10.3390/molecules14041475.

Abstract

The laccase induced gelation of maize bran arabinoxylans at 2.5% (w/v) in the presence of insulin or beta-lactoglobulin at 0.1% (w/v) was investigated. Insulin and beta-lacto-globulin did not modify either the gel elasticity (9 Pa) or the cross-links content (0.03 and 0.015 microg di- and triferulic acids/mg arabinoxylan, respectively). The protein release capability of the gel was also investigated. The rate of protein release from gels was dependent on the protein molecular weight. The apparent diffusion coefficient was 0.99 x 10(-7) and 0.79 x 10(-7) cm(2)/s for insulin (5 kDa) and beta-lactoglobulin (18 kDa), respectively. The results suggest that maize bran arabinoxylan gels can be potential candidates for the controlled release of proteins.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biocompatible Materials / chemistry
  • Biocompatible Materials / metabolism
  • Drug Delivery Systems*
  • Gels / chemistry*
  • Gels / metabolism
  • Insulin / metabolism
  • Laccase / metabolism
  • Lactoglobulins / metabolism
  • Molecular Weight
  • Plant Proteins / metabolism
  • Proteins / chemistry
  • Proteins / metabolism*
  • Xylans / chemistry*
  • Xylans / metabolism
  • Zea mays / chemistry*

Substances

  • Biocompatible Materials
  • Gels
  • Insulin
  • Lactoglobulins
  • Plant Proteins
  • Proteins
  • Xylans
  • arabinoxylan
  • Laccase