Pierucci Anna Paola T R, Andrade Leonardo R, Farina Marco, Pedrosa Cristiana, Rocha-Leão Maria Helena M
Departamento de Nutrição Básica e Experimental, Instituto de Nutrição, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Brazil.
J Microencapsul. 2007 May;24(3):201-13. doi: 10.1080/02652040701281167.
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.
α-生育酚是一种能够中断自由基链的抗氧化剂，可保护组织的完整性并在生命过程中发挥重要作用。以豌豆蛋白（PP）、羧甲基纤维素（CMC）以及这些材料与麦芽糊精的混合物（PP-M和CMC-M）作为壁材，通过喷雾干燥技术制备了含有α-生育酚的微粒。对所制备的微粒在核心保留率（高效液相色谱法）、形态（扫描电子显微镜）和尺寸分布（激光衍射）方面进行了表征。所有微粒中α-生育酚的保留率均高于77%。它们呈现出不同程度的球形和粗糙度。其平均粒径保持在7微米以下，最小粒径出现在PP和CMC-M微粒中。这项工作所获得的结果表明，用于α-生育酚微胶囊化的豌豆蛋白是一种在食品中具有进一步应用前景的体系。
