Solid-liquid Extraction of Phenolics from Red Grape Skins

被引：17

作者：

Tomaz, Ivana ^{[1
]}

Maslov, Luna ^{[1
]}

Stupic, Domagoj ^{[1
]}

Preiner, Darko ^{[1
]}

Asperger, Danijela ^{[2
]}

Kontic, Jasminka Karoglan ^{[1
]}

机构：

[1] Univ Zagreb, Fac Agr, Dept Viticulture & Enol, Svetosimunska 25, Zagreb 10000, Croatia

[2] Univ Zagreb, Fac Chem Engn & Technol, Dept Analyt Chem, Marulicev Trg 19, Zagreb 10000, Croatia

来源：

ACTA CHIMICA SLOVENICA | 2016年 / 63卷 / 02期

关键词：

Grape skins; solid-liquid extraction; flavonoids; multi-response optimization; IONIZATION MASS-SPECTROMETRY; ASSISTED EXTRACTION; VITIS-VINIFERA; ANTHOCYANINS; CHROMATOGRAPHY; OPTIMIZATION; CULTIVARS; VARIETIES; WINES; IDENTIFICATION;

D O I：

10.17344/acsi.2015.2181

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

For the characterization of grape cultivars, the profile and content of flavonoids are important because these compounds have an impact on grape and wine quality. A new extraction method for the recovery of flavonoids, e.g. anthocyanins, flavonols and flavan-3-ols from grape skins was developed. The optimization of solid-liquid extraction of flavonoids was conducted, with respect to the type of the organic solvent and its percentage in the extraction solvent as well as the extraction temperature and extraction time, using response surface methodology. Optimal conditions were obtained by using extraction solvent composed from acetonitrile: water: formic acid (20: 79: 1; v/v/v), at an extraction temperature of 50 degrees C, an extraction time of 1 h in a single-step extraction and with a solid-to-solvent ratio of 1: 80 g mL(-1) (125 mg of grape skin powder and 10 mL of extraction solvent). The new optimal extraction method is inexpensive, simple, fast, accurate and selective for the recovery of simple flavonoids.

引用

页码：287 / 297

页数：11

共 31 条

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