Effect of extraction conditions and tannase enzyme application on catechin content and cream formation in Turkish black tea extracts    
Yazarlar (2)
Dr. Öğr. Üyesi Esra ESİN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Prof. Dr. Cemal KAYA Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Journal of Food Measurement and Characterization
Dergi ISSN 2193-4126 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 01-2024
Cilt No 18
Sayı 1
Sayfalar 834 / 844
DOI Numarası 10.1007/s11694-023-02237-4
Makale Linki https://doi.org/10.1007/s11694-023-02237-4
Özet
This study was conducted to obtain a clear product and enhance the product quality by reducing or preventing the formation of tea cream, one of the most critical problems in ready to drink (RTD) tea production. Thus, the tannase enzyme was applied to the Turkish black tea extracts at by different brewing temperatures (50 and 70 °C), times (5, 10, and 20 min), and tea:water ratios (1:100, 5:100, 10:100). Total phenolic, tea cream and catechin analysis were performed on the extracts. The amount of tea cream was in the range of 0.37–0.74 g/100 g black tea in the enzyme-treated samples and 1.23–2.19 g/100 g black tea in the untreated control sample. Moreover, a decrease in the cream in black tea extracts obtained using the classic extraction method was observed at around 65.89–74.55% with the tannase enzyme application.
Anahtar Kelimeler
Catechin | Phenolics | Tannase | Tea cream | Turbidity