Formulation of β-carotene with poly-(ε-caprolactones) by PGSS process
Formulation of β-carotene with poly-(ε-caprolactones) by PGSS process
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DOI：
10.1016/j.powtec.2011.10.011
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发表时间：
2012-02-01
影响因子：
5.2
通讯作者：
Jose Cocero, Maria
中科院分区：
文献类型：
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作者：
de Paz, Esther;Martin, Angel;Jose Cocero, Maria
β-胡萝卜素是自然界中最常见的色素之一。β-胡萝卜素制剂提供抗氧化和降解过程的保护。它们作为天然着色剂非常有吸引力，因为它们由于其抗氧化剂和维生素原活性而增加了产品的价值。本工作提出了一种研究β-胡萝卜素与聚-（ε-己内酯）的颗粒从气体饱和溶液（PGSS）过程中的配方。使用分子量为10 000 g mol（-1）的聚己内酯可获得粒径为270-650 μ m、β-胡萝卜素含量高达340 ppm的颗粒，而使用分子量为4000 g mol（-1）的聚己内酯可将粒径减小至110-130 μ m。研究了几个工艺参数对颗粒尺寸和β-胡萝卜素含量的影响，包括压力、温度、用于混合物均化的CO2与聚合物熔体之间的接触时间以及β-胡萝卜素：聚合物的摩尔比。(C)2011爱思唯尔有限公司版权所有。
beta-carotene is one of the most common pigments in nature. beta-carotene formulations provide protection against oxidation and degradation processes. They are very attractive as natural colorants because they add value to the product due to their antioxidant and pro-vitamin activities. This work presents a study of the formulation of beta-carotene with poly-(epsilon-caprolactone) by Particles from Gas Saturated Solutions (PGSS) process. Particle sizes in the range of 270-650 mu m with a beta-carotene content of up to 340 ppm were obtained using polycaprolactone with a molecular weight of 10 000 g mol(-1), while using a polycaprolactone with a molecular weight of 4000 g mol(-1) the particle size was reduced to 110-130 mu m. The influence of several process parameters on particle size and beta-carotene content was studied, including pressure, temperature, time of contact between CO2 and polymer melt for mixture homogenization, and molar ratio beta-carotene:polymer. (C) 2011 Elsevier B.V. All rights reserved.