tlyonlogo
会员中心
配送方式
采购指南
付款方式
售后服务
特色服务

图拉扬分站

成都站、北京站
广州站、上海站
香港站

查看详情 >

最近浏览的商品:

0去询价篮结算
询价篮中还没有商品,赶紧选购吧!
当前位置: 首页 > 技术文献 > 应用文献 > 以水为共溶剂的超临界流体从葡萄渣中连续提取高附加值分子
文章分类
浏览历史

以水为共溶剂的超临界流体从葡萄渣中连续提取高附加值分子


来源: Gayane Hayrapetyan et al  发布日期: 2024-01-11  访问量: 98


受有机废物增值概念的启发,并朝着可持续经济的方向发展,一种涉及超临界二氧化碳(SC-CO2)和水作为共溶剂的绿色化学提取技术被用于酿酒厂的主要副产品(葡萄渣)。目的是选择性地提取高价值的添加分子,特别是酚类化合物和多糖。实验设计包括应用三种不同的温度条件(40、60和80°C)和400巴的恒定压力。在水作为共溶剂的SC-CO2提取物中检测到含有低甲氧基(%DE=23)果胶物质的酚类化合物和高分子量分离物(449–478 kDa)
标签: 超临界萃取、水、葡萄废物、酚类、多糖
 

Sequential extraction of high-value added molecules from grape pomaces using supercritical fluids with water as a co-solvent

Gayane Hayrapetyan ab, Karen Trchounian b, Laurine Buon c, Laurence Noret a, Benoît Pinel d, Jeremy Lagrue d, Ali Assifaoui *a

aUMR PAM, Equipe PCAV, Université de Bourgogne/Institut Agro, 1 Esp. Erasme, Agrosup, 21000 Dijon, France. E-mail: ali.assifaoui@u-bourgogne.fr
bDepartment of Biochemistry, Microbiology and Biotechnology, Yerevan State University, 1 Alex Manoogian St, Yerevan 0025, Armenia
cCERMAV (Centre de Recherches sur les Macromolécules Végétales), 38041 Grenoble, France
dSFE Process, 107 Bd Tolstoï, 54510 Tomblaine, France

Received 12th June 2023 , Accepted 3rd September 2023

First published on 4th September 2023

 

Abstract

Inspired by the concept of organic waste valorisation and heading towards a sustainable economy, a green chemistry extraction technique involving supercritical carbon dioxide (SC-CO2) along with water as a co-solvent was employed for the main winery by-product (grape pomaces). The objective was to selectively extract high-value added molecules, in particular phenolic compounds and polysaccharides. The experimental design involved applying three distinct temperature conditions (40, 60, and 80 °C), and a constant pressure of 400 bar. Phenolic compounds and high-molecular weight isolates (449–478 kDa) containing low methoxyl (% DE = 23) pectic substances were detected in the SC-CO2 extracts accompanied by water as a co-solvent. The phenolic acids, namely, gallic (GA), protocatechuic (PCA), coumaric (CouA), and caftaric (CTA), and flavonoids, namely, procyanidin B1 (PRC B1), procyanidin B2 (+) (PRC B2), (+) catechin (CT), and (−) epicatechin (ECT) were found in all the extracts under the tested experimental conditions. The following study underscores the potential of the pressurized CO2/H2O medium as an effective solvent with minimal environmental impacts for the comprehensive valorisation of the main winery by-product, specifically targeting polysaccharides and phenolic compounds.

受有机废物增值概念的启发,并朝着可持续经济的方向发展,一种涉及超临界二氧化碳(SC-CO2)和水作为共溶剂的绿色化学提取技术被用于酿酒厂的主要副产品(葡萄渣)。目的是选择性地提取高价值的添加分子,特别是酚类化合物和多糖。实验设计包括应用三种不同的温度条件(40、60和80°C)和400巴的恒定压力。在水作为共溶剂的SC-CO2提取物中检测到含有低甲氧基(%DE=23)果胶物质的酚类化合物和高分子量分离物(449–478 kDa)。在测试的实验条件下,在所有提取物中都发现了酚酸,即没食子酸(GA)、原儿茶酸(PCA)、香豆素酸(CouA)和咖啡酸(CTA),以及类黄酮,即原花青素B1(PRC B1)、原花青素B2(+)(PRC B2)、(+)儿茶素(CT)和(−)表儿茶素(ECT)。以下研究强调了加压CO2/H2O介质作为一种有效溶剂的潜力,该溶剂对葡萄酒厂主要副产品(特别是多糖和酚类化合物)的综合定价具有最小的环境影响。

···

2.3. Supercritical CO2 extraction on grape pomaces
The supercritical SC-CO2 machine (SFE process, Nancy, France) coupled with two pumps, main CO2 and co-solvent, with a maximum pressure capacity of 1000 bar was used in this study. The instrument is equipped with an extraction basket (stainless steel) with a capacity of 100 mL and an autoclave cylinder, which directs the extracts to the back pressure regulator (BPR) (Fig. 1). The cooling system was filled with glycerol and the CO2 flow was recycled in the system. The observation of the extracts was possible thanks to the transparent sapphire separator. Various temperature sensors were placed in the system monitoring important temperature changes within the system.

 

 

 


*本文内容非商业广告,仅供专业人士参考!

相关产品
相关文章

配送方式
采购指南
付款方式
售后服务
特色服务

图拉扬分站

成都站、北京站
广州站、上海站
香港站

查看详情 >