Isolation and partial characterization of feruloylated oligosaccharides from maize bran

✍ Scribed by Luc Saulnier; Jacqueline Vigouroux; Jean-François Thibault

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 608 KB
• Volume: 272
• Category: Article
• ISSN: 0008-6215
• DOI: 10.1016/0008-6215(95)00053-v

✦ Synopsis

Maize bran contains phenolic acids [ ~ 4% dry matter; mainly ferulic acid (Fe) and also diferulic acid], heteroxylans (~ 50%), and cellulose (~ 20%), but is devoid of lignin. Treatment of maize pericarp with 0.05 M trifluoroacetic acid at 100°C for 2 h released ~ 90% of the heteroxylans and ~ 90% of the ferulic acid and its esters. After fractionation of the products with Amberlite XAD-2 and Sephadex LH-20 three main feruloylated oligosaccharides (F3-F 7) were isolated. They represented ~ 30% of the ferulic acid, and ~ 2% of the neutral sugars contained in the hydrolysis supernatant.