利用新型绿色生物精炼战略提升棕榈属植物生物活性成分的价值。

IF 4.9 2区 医学 Q1 CHEMISTRY, MEDICINAL
Marine Drugs Pub Date : 2024-10-11 DOI:10.3390/md22100467
Melis Cokdinleyen, Gloria Domínguez-Rodríguez, Huseyin Kara, Elena Ibáñez, Alejandro Cifuentes
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引用次数: 0

摘要

研究人员开发了一种生物精炼工艺,用于从棕榈中分离藻胆蛋白、硫酸化多糖和酚类化合物。萃取过程分三个阶段进行,分别采用超声辅助萃取(UAE)和加压液体萃取(PLE),并结合不同的天然深共晶溶剂(NaDESs)。一般来说,在第一步提取过程中,加压液体萃取(PLE)比超声辅助萃取(UAE)提供了更高的藻胆蛋白含量。事实上,PLE-NaDES 萃取物的水解产物比 UAE-NaDES 萃取物的抗氧化能力更高。尤其是甘油:葡萄糖(2:1)加 50%的水与 PLE 的组合是最适合的 NaDES,可在生物精炼工艺的第一步和第二步中从棕榈中回收最高的藻脂蛋白、蛋白质和硫酸化多糖含量。最后,采用氯化胆碱:甘油(1:2)和 60% 的水作为 NaDES 的 PLE-NaDES 从第二步的残留物中回收抗氧化和神经保护酚类化合物,与采用乙醇/水(70:30, v/v)作为提取溶剂的 PLE 相比,获得了更高的总酚含量。此外,一项强制稳定性研究表明,与水提取物相比,NaDES 对植物硅蛋白的降解具有保护作用,可长期保持其颜色。这项研究有助于通过可持续的生物炼制工艺,从价值被低估的生物海洋资源中回收高价值成分。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
New Green Biorefinery Strategies to Valorize Bioactive Fractions from Palmaria palmata.

A biorefinery process was developed to isolate phycobiliproteins, sulfated polysaccharides, and phenolic compounds from Palmaria palmata. The extraction process was carried out in three stages using ultrasound-assisted extraction (UAE) and pressurized liquid extraction (PLE) integrated with different natural deep eutectic solvents (NaDESs). In general, PLE provided higher phycobiliprotein contents than UAE in the first step of the process. In fact, the hydrolysis product of the PLE-NaDES extracts achieved a higher antioxidant capacity than that of the UAE-NaDES extracts. Particularly, glycerol:glucose (2:1) with 50% water in combination with PLE was the most suitable NaDES to recover the highest phycobiliprotein, protein, and sulfated polysaccharide contents from Palmaria palmata in the first and second steps of the biorefinery process. Finally, a PLE-NaDES using choline chloride:glycerol (1:2) with 60% water as the NaDES was employed for the recovery of antioxidant and neuroprotective phenolic compounds from the residue of the second step, obtaining a higher total phenolic content than employing PLE with ethanol/water (70:30, v/v) as the extraction solvent. Moreover, a forced stability study revealed that the NaDESs provided a protective effect compared to the water extracts against the degradation of phycobiliproteins, preserving their color over time. This study contributes to the recovery of high-value components from an undervalued biomarine source through a sustainable biorefinery process.

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来源期刊
Marine Drugs
Marine Drugs 医学-医药化学
CiteScore
9.60
自引率
14.80%
发文量
671
审稿时长
1 months
期刊介绍: Marine Drugs (ISSN 1660-3397) publishes reviews, regular research papers and short notes on the research, development and production of drugs from the sea. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible, particularly synthetic procedures and characterization information for bioactive compounds. There is no restriction on the length of the experimental section.
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