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Amyl Xyloside, a Selective Sugar-Based Hydrotrope for the Aqueous Extraction of Carnosic Acid from Rosemary
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-03-23 , DOI: 10.1021/acssuschemeng.0c09366 Agathe Mazaud 1, 2 , Raphaël Lebeuf 1 , Christel Pierlot 1 , Mickaël Laguerre 2 , Véronique Nardello-Rataj 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-03-23 , DOI: 10.1021/acssuschemeng.0c09366 Agathe Mazaud 1, 2 , Raphaël Lebeuf 1 , Christel Pierlot 1 , Mickaël Laguerre 2 , Véronique Nardello-Rataj 1
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Rosemary (Rosmarinus officinalis L.) is a Mediterranean herb known for its high antioxidant power that has been widely attributed to carnosic acid (CA). Passive extractions of CA have been performed in water by using five commercially available short-chain alkyl polyglycosides (APG) with alkyl chain lengths ranging from 4 to 10 carbon atoms and polar heads composed of pentoses and/or glucoses. APGs are nontoxic amphiphiles with high biodegradability. Their solubilizing capacity for CA has been determined, highlighting heptyl glucoside (C7Glu) as the most efficient one, followed by 2-ethylhexyl glucoside (C6,–2Glu) and isoamyl xyloside (iC5Xyl). However, iC5Xyl exhibited the highest selectivity toward CA solubilization as compared to ursolic acid (UA), a potential coextracted compound of rosemary leaves. In addition, it was found to be the most efficient amphiphile to extract CA from both ground and whole rosemary leaves. To optimize the maceration process and the recovery of the extract, a full factorial design 24 was performed investigating iC5Xyl concentration, temperature, stirring, and extraction time. A high concentration of hydrotrope was found to be the most important condition to optimize the maceration step, while the temperature particularly increases the yield, but in detriment of the CA content in the final dried extract.
中文翻译：
戊基木糖苷，一种选择性的基于糖的水溶助长剂，用于从迷迭香中提取肌酸。
迷迭香（Rosmarinus officinalis L.）是一种地中海草药，以其高抗氧化能力而闻名，广泛被归因于肌酸（CA）。通过使用五种市售短链烷基多糖苷（APG）在水中进行CA的被动提取，烷基链长范围为4至10个碳原子，极性头由戊糖和/或葡萄糖组成。APG是具有高生物降解性的无毒两亲物。已经确定了它们对CA的溶解能力，突出显示了最有效的庚基葡糖苷（C 7 Glu），其次是2-乙基己基葡糖苷（C 6，–2 Glu）和异戊基木糖苷（i C 5 Xyl）。但是，我C 5与乌苏酸（UA）（一种潜在的共提取的迷迭香叶化合物）相比，Xyl对CA增溶表现出最高的选择性。另外，发现它是从地面和整个迷迭香叶中提取CA的最有效的两亲物。为了优化浸渍处理和提取物的回收，全因子设计2 4进行调查我Ç 5的Xyl浓度，温度，搅拌和提取时间。发现高浓度的水溶助长剂是优化浸渍步骤的最重要条件，而温度特别提高了产量，但不利于最终干燥提取物中的CA含量。
更新日期：2021-04-05
中文翻译：
戊基木糖苷，一种选择性的基于糖的水溶助长剂，用于从迷迭香中提取肌酸。
迷迭香（Rosmarinus officinalis L.）是一种地中海草药，以其高抗氧化能力而闻名，广泛被归因于肌酸（CA）。通过使用五种市售短链烷基多糖苷（APG）在水中进行CA的被动提取，烷基链长范围为4至10个碳原子，极性头由戊糖和/或葡萄糖组成。APG是具有高生物降解性的无毒两亲物。已经确定了它们对CA的溶解能力，突出显示了最有效的庚基葡糖苷（C 7 Glu），其次是2-乙基己基葡糖苷（C 6，–2 Glu）和异戊基木糖苷（i C 5 Xyl）。但是，我C 5与乌苏酸（UA）（一种潜在的共提取的迷迭香叶化合物）相比，Xyl对CA增溶表现出最高的选择性。另外，发现它是从地面和整个迷迭香叶中提取CA的最有效的两亲物。为了优化浸渍处理和提取物的回收，全因子设计2 4进行调查我Ç 5的Xyl浓度，温度，搅拌和提取时间。发现高浓度的水溶助长剂是优化浸渍步骤的最重要条件，而温度特别提高了产量，但不利于最终干燥提取物中的CA含量。
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