CO 流速对超临界流体技术从中提取虾青素和脂肪酸的影响。

Effect of CO Flow Rate on the Extraction of Astaxanthin and Fatty Acids from Using Supercritical Fluid Technology.

机构信息

Laboratorio de Microencapsulación de Compuestos Bioactivos (LAMICBA) del Departamento de Ciencias de los Alimentos y Nutrición, Facultad de Ciencias de la Salud (FACSA), Universidad de Antofagasta, Avda, Universidad de Antofagasta 02800, Campus Coloso, P.O. Box 1240000 Antofagasta, Chile.

LASEFI-Department of Food Engineering, School of Food Engineering, University of Campinas (UNICAMP), R. Monteiro Lobato 80, 13083-862 Campinas, São Paulo, Brazil.

出版信息

Molecules. 2020 Dec 21;25(24):6044. doi: 10.3390/molecules25246044.

is the largest producer of natural astaxanthin in the world. Astaxanthin is a bioactive compound used in food, feed, nutraceutics, and cosmetics. In this study, astaxanthin extraction from by supercritical fluid extraction was evaluated. The effects of temperature (40 and 50 °C), pressure (40 and 50 MPa), and CO flow rate (2 and 4 L/min) were investigated. The results showed that the highest astaxanthin recovery was obtained at 50 °C/50 MPa and the CO flow rates evaluated had no significant effect. It was possible to achieve astaxanthin recoveries of 95% after 175 min for a CO flow rate of 2 L/min, and 95 min for CO flow rate of 4 L/min. The ω-6/ω-3 ratios obtained were similar in all conditions, reaching 0.87, demonstrating that the extracts from by SFE are rich in unsaturated fatty acids (UFA) which increases their positive effects when used as a functional ingredient in food.

是世界上最大的天然虾青素生产国。虾青素是一种在食品、饲料、营养保健品和化妆品中使用的生物活性化合物。在这项研究中，评估了用超临界流体萃取法从中提取虾青素。考察了温度（40 和 50°C）、压力（40 和 50 MPa）和 CO 流速（2 和 4 L/min）的影响。结果表明，在 50°C/50 MPa 下获得了最高的虾青素回收率，所评价的 CO 流速没有显著影响。在 CO 流速为 2 L/min 时，经过 175 分钟可以实现 95%的虾青素回收率，而在 CO 流速为 4 L/min 时，仅需 95 分钟。在所有条件下获得的 ω-6/ω-3 比值相似，达到 0.87，表明 SFE 从中提取的虾青素富含不饱和脂肪酸（UFA），当用作食品中的功能性成分时，会增加其积极影响。