Liquid-Liquid Extraction Based Simple Trans-Resveratrol Analysis In Wine Samples

Autor: İnal, Emine, Öz, Sevi, Atakol, Arda, Akay, Mehmet, Atakol, Orhan
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, Vol 8, Iss 1, Pp 114-121 (2013)
Volume: 8, Issue: 1 114-121
ISSN: 1306-7575
Popis: 3,5,4-trans-trihydroxystilbene (trans-resveratrol) is quite soluble in CH2Cl2 and CHCl3. Wine samples are shaken in and rinsed with CHCl3 to obtain fine extracts of trans-resveratrol. The obtained CHCl3 solutions were directly injected to HPLC system for analysis. Determinations were made in 60% MeCN: 40% EtOH, and by trans-resveratrol standard addition. The resolution is calculated to be about 1.0 in the chromatogram. In 9 wine samples produced in Turkey, resveratrol concentrations were detected in between 1.46 and 6.53 ppm. By consecutive extractions, extraction ratio of resveratrol was determined and by increasing the amount of the samples, accuracy of the method was tested. It was found that the recovery is about 100.42 %.Key words: Resveratrol determination, wine, HPLC, liquid-liquid extraction.Şarap Örneklerinde Sıvı-Sıvı Ekstraksiyonu İle Trans-Resveratrol AnaliziÖzet: 3,5,4-trans-trihidroksistilben (trans-resveratrol)'in CH2Cl2 ve CHCl3 içindeki çözünürlüğü oldukça fazladır. Trans-resveratrolü tam ekstrakte etmek için, şarap örnekleri CHCl3 içinde çalkalandı. Elde edilen CHCl3 çözeltisi HPLC sistemine direk olarak enjekte edildi. Analiz, %60 MeCN: %40 EtOH içinde ve trans-resveratrol standart eklenmesiyle gerçekleştirildi. Kromatogramdaki rezolüsyon yaklaşık 1.0 olarak hesaplandı. Türkiye de üretilmiş olan 9 şarap örneğinde resveratrol konsantrasyonu 1.46-6.53 ppm olarak bulundu. Resveratrolün ekstraksiyon oranı, ardışık ekstraksiyon ile tespit edildi ve örnek miktarı arttırılarak, metodun doğruluğu test edildi. Geri kazanım % 100.42 olarak bulundu.Anahtar kelimeler: Resveratrol tayini, şarap, HPLC, sıvı-sıvı ekstraksiyonu.
3,5,4-trans-trihydroxystilbene (trans-resveratrol) is quite soluble in CH2Cl2 and CHCl3. Wine samples are shaken in and rinsed with CHCl3 to obtain fine extracts of trans-resveratrol. The obtained CHCl3 solutions were directly injected to HPLC system for analysis. Determinations were made in 60% MeCN: 40% EtOH, and by trans-resveratrol standard addition. The resolution is calculated to be about 1.0 in the chromatogram. In 9 wine samples produced in Turkey, resveratrol concentrations were detected in between 1.46 and 6.53 ppm. By consecutive extractions, extraction ratio of resveratrol was determined and by increasing the amount of the samples, accuracy of the method was tested. It was found that the recovery is about 100.42 %
Databáze: OpenAIRE
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