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Abstract
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Article Information:
Separation of Caffeine and Tea Poly-phenols from Instant (Soluble) Tea Waste Liquor by Macro-porous Resins
Xueling Gao, Bin Zhang, Zenglang Shao, Yong Yang and Pengxiang Yue
Corresponding Author: Pengxiang Yue
Submitted: March 14, 2014
Accepted: April 15, 2014
Published: June 10, 2014 |
Abstract:
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Instant tea is presently manufactured by spraying and freeze drying the concentrated brew of processed tea leaves and dust. The purpose of this study was to develop a technique using macro-porous resins for separating Caffeine (Caf) and Tea Poly-phenols (TP) from the waste liquor generated by manufacturing instant tea. Optimum adsorption conditions were obtained using an initial concentration of Caf solution of 80 mg/L and a flow rate of 1.5 mL/min at 60°C; The optimal desorption conditions were determined using a flow rate of 1.0 mL/min, 80% aqueous ethanol of, eluent volume of 4 times of Bed Volume (BV). After column separation, the purity of Caf was enhanced from 6 to 23%, TP from 38 to 61% and with the final yield of 16.9% following the separation by D101 resin. This study demonstrated macro-porous resin can effectively separated Caf and TP from instant tea waste liquor.
Key words: Caffeine (Caf), instant tea waste liquor, macro-porous resins, separation, Tea Poly-phenol (TP), ,
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Cite this Reference:
Xueling Gao, Bin Zhang, Zenglang Shao, Yong Yang and Pengxiang Yue , . Separation of Caffeine and Tea Poly-phenols from Instant (Soluble) Tea Waste Liquor by Macro-porous Resins. Advance Journal of Food Science and Technology, (6): 768-773.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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