Comparison of alpha-tocopherol microparticles produced with different wall materials: pea protein a new interesting alternative

J Microencapsul. 2007 May;24(3):201-13. doi: 10.1080/02652040701281167.

Abstract

Alpha-tocopherol is a radical chain breaking antioxidant that can protect the integrity of tissues and play an important role in life process. Microparticles containing alpha-tocopherol were produced by spray drying technique using pea protein (PP), carboxymethylcellulose(CMC) and mixtures of these materials with maltodextrin (PP-M and CMC-M) as wall materials. The microparticles produced were characterised as regards the core retention (high performance liquid chromatography), the morphology (scanning electron microscopy) and size distribution (laser diffraction). The retention of alpha-tocopherol within all microparticles was above 77%. They showed a spherical shape and roughness at varied degrees. Their mean particles size remained below 7 microm, and the smallest sizes were found in PP and CMC-M microparticles. The results obtained in this work show that the pea protein use for alpha-tocopherol microencapsulation is a promising system for further application in food.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carboxymethylcellulose Sodium
  • Chromatography, High Pressure Liquid
  • Electrophoresis, Polyacrylamide Gel
  • Microscopy, Electron, Scanning
  • Particle Size
  • Pisum sativum / chemistry*
  • Plant Proteins / chemistry*
  • alpha-Tocopherol / chemistry*

Substances

  • Plant Proteins
  • alpha-Tocopherol
  • Carboxymethylcellulose Sodium