利用新兴提取技术和烷二醇水溶液对马黛茶果实（Martius）进行综合利用。
Juçara Fruit ( Martius) Valorization Combining Emergent Extraction Technologies and Aqueous Solutions of Alkanediols.
机构信息
CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
Laboratory of Thermodynamics and Supercritical Technology (LATESC), Department of Chemical and Food Engineering (EQA), Federal University of Santa Catarina (UFSC), Florianópolis 88040-900, Brazil.
出版信息
Molecules. 2023 Feb 7;28(4):1607. doi: 10.3390/molecules28041607.
Anthocyanins from juçara fruits were extracted by pressurized liquid extraction (PLE) or ultrasound-assisted extraction (UAE), using aqueous solutions of 1,2-alkanediols and glycerol ethers as biobased solvents. The PLE (100 bar, 13 min, 1 mL/min flow rate) in the optimal extraction conditions originated 23.1 mg·g. On the other hand, the UAE was 10 min long, and the optimal conditions using 1,2-propanediol were 42.6 wt%, 160 W, and pH 7.0, leading to 50 mg·g. Extractions at the UAE optimized conditions, with aqueous solutions of five different 1,2-alkanediols and three glycerol ethers were performed, and compared to water and ethanolic extracts. The biobased solvent solutions presented anthocyanin yields up to 33% higher than water, and were shown to be as efficient as ethanol/water, but generated extracts with higher antioxidant capacity. The anthocyanin-rich extract of juçara, obtained with 1,2-propanediol, was used in the production of a natural soap and incorporated into a cream, showing that the addition of the juçara extract resulted in an antioxidant capacity in both products.
采用加压液体萃取（PLE）或超声辅助提取（UAE），使用 1,2-烷二醇和甘油醚的水溶液作为生物基溶剂，从 juçara 果实中提取花色苷。在最佳提取条件下，PLE（100 bar、13 min、1 mL/min 流速）的提取量为 23.1mg·g。另一方面，UAE 的提取时间为 10 min，使用 1,2-丙二醇的最佳条件为 42.6wt%、160 W 和 pH 7.0，提取量为 50 mg·g。在 UAE 的优化条件下，用五种不同的 1,2-烷二醇和三种甘油醚的水溶液进行提取，并与水和乙醇提取物进行了比较。生物基溶剂溶液的花色苷产率比水高 33%，与乙醇/水一样高效，但提取物的抗氧化能力更高。用 1,2-丙二醇提取的富含花色苷的 juçara 提取物用于生产天然肥皂，并掺入乳膏中，表明在这两种产品中添加 juçara 提取物均能提高抗氧化能力。
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