Thermal characterisation of oxidatively cross-linked American corn bran hemicellulose
✍ Scribed by Georget, Dominique MR; Ng, Annie; Smith, Andrew C; Waldron, Keith W
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 126 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0022-5142
No coin nor oath required. For personal study only.
✦ Synopsis
Hemicellulose powder from American corn bran (Zea mays L), substantially a feruloylated arabinoxylan polysaccharide, can be converted with peroxidase and hydrogen peroxide under controlled conditions to form thermostable biogels. Previously it has been shown that gel formation involved the oxidative coupling of ferulic acid to form a series of ferulic-acid dimers. In the present study, diþ erential scanning calorimetry showed that the eþ ect of such cross-linking was to elevate the glass transition temperature which also shifted to lower temperatures with increasing water (T g ) content.