Chemical and Sensory Properties of Verjuice a Traditional Turkish Non Fermented Beverage From Kabarcık and Yediveren Grapes     
Yazarlar (5)
Ibrahim Hayoglu
Harran Üniversitesi, Türkiye
Osman Kola
Sakarya Üniversitesi, Türkiye
Prof. Dr. Cemal KAYA Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Sertac Özer
Çukurova Üniversitesi, Türkiye
Hüseyin Turkoglu
Harran Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Journal of Food Processing and Preservation
Dergi ISSN 0145-8892 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q4
Makale Dili İngilizce
Basım Tarihi 08-2009
Cilt No 33
Sayfalar 252 / 263
DOI Numarası 10.1111/j.1745-4549.2008.00339.x
Makale Linki http://doi.wiley.com/10.1111/j.1745-4549.2008.00339.x
Özet
Verjuice is an unfermented green grape juice obtained by pressing green grapes. It has a unique flavor and sour taste. In the present study, parameters on the quality properties of verjuice made from Kabarcik and Yediveren grape varieties were studied; turbidity of fresh verjuice samples were 57.3 and 59.57 (625 nm %T), respectively. Phenolic matter contents ranged between 626.27 and 753.80 (mg/100 mL). In the samples treated with heat, clarified with gelatin and stored at 4C, the turbidity values were 81.20 and 93.10 (625 %T), and the total phenolic matter contents were 270.21 and 227.48 mg/100 mL in Kabarcik and Yediveren varieties, respectively. In addition, according to sensory evaluation, verjuice samples clarified with gelatin were preferred most by the panelists. PRACTICAL APPLICATIONS Verjuice is an unfermented green grape juice obtained by pressing unripe grapes with a unique flavor and sour taste. It is traditionally produced by pressing grapes and sieving the juice obtained through a nonmetal. It is preserved in bottles, adding olive oil to prevent contact with air, at cool condition. It is consumed locally, especially in the Mediterranean and southeastern regions of Turkey, to enhance the flavor of traditional meals, salads and appetizers, and as an ingredient in the production of various drinks, and several sausages such as mustard sausage. The natural verjuice that is neither clarified nor heated was more flavored, but it is turbid and has rather short shelf life. The present study revealed that clarification with gelatin followed by heat treatment of bottled verjuice at 85C for 15 min result in a favorable product with respect to quality properties during shelf life at ambient temperature. © 2009 Wiley Periodicals, Inc.
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