López-Padilla Alexis, Ruiz-Rodriguez Alejandro, Restrepo Flórez Claudia Estela, Rivero Barrios Diana Marsela, Reglero Guillermo, Fornari Tiziana
Institute of Food Science Research CIAL (CSIC-UAM)-CEI UAM + CSIC, Madrid 28049, Spain.
INTAL Foundation Cra 50 G N° 12 Sur 91, Itagüí 050023, Colombia.
Materials (Basel). 2016 Jun 25;9(7):519. doi: 10.3390/ma9070519.
Swartz (Mortiño or Colombian blueberry) is one of the species abundantly found across the Colombian mountains, which are characterized by high contents of polyphenolic compounds (anthocyanins and flavonoids). The supercritical fluid extraction (SFE) of species has mainly focused on the study of L. (blueberry). In this work, the SFE of Mortiño fruit from Colombia was studied in a small-scale extraction cell (273 cm³) and different extraction pressures (20 and 30 MPa) and temperatures (313 and 343 K) were investigated. Then, process scaling-up to a larger extraction cell (1350 cm³) was analyzed using well-known semi-empirical engineering approaches. The Broken and Intact Cell (BIC) model was adjusted to represent the kinetic behavior of the low-scale extraction and to simulate the large-scale conditions. Extraction yields obtained were in the range 0.1%-3.2%. Most of the Mortiño solutes are readily accessible and, thus, 92% of the extractable material was recovered in around 30 min. The constant CO₂ residence time criterion produced excellent results regarding the small-scale kinetic curve according to the BIC model, and this conclusion was experimentally validated in large-scale kinetic experiments.
斯沃茨（莫蒂尼奥或哥伦比亚蓝莓）是在哥伦比亚山区大量发现的物种之一，其特点是多酚类化合物（花青素和黄酮类化合物）含量高。该物种的超临界流体萃取（SFE）主要集中在对蓝莓的研究上。在这项工作中，在一个小型萃取单元（273立方厘米）中研究了来自哥伦比亚的莫蒂尼奥果实的SFE，并考察了不同的萃取压力（20和30兆帕）和温度（313和343开尔文）。然后，使用著名的半经验工程方法分析了放大到更大萃取单元（1350立方厘米）的过程。对破碎和完整细胞（BIC）模型进行了调整，以表示小规模萃取的动力学行为并模拟大规模条件。获得的萃取产率在0.1%-3.2%范围内。大多数莫蒂尼奥溶质易于获取，因此，约92%的可萃取物质在约30分钟内被回收。根据BIC模型，恒定的二氧化碳停留时间标准在小规模动力学曲线上产生了优异的结果，这一结论在大规模动力学实验中得到了实验验证。
