Authors:
Degenhardt, A
Engelhardt, UH
Winterhalter, P
Ito, Y
Citation: A. Degenhardt et al., Centrifugal precipitation chromatography - a novel chromatographic system for fractionation of polymeric pigments from black tea and red wine, J AGR FOOD, 49(4), 2001, pp. 1730-1736
Authors:
Degenhardt, A
Engelhardt, UH
Lakenbrink, C
Winterhalter, P
Citation: A. Degenhardt et al., Preparative separation of polyphenols from tea by high-speed countercurrent chromatography, J AGR FOOD, 48(8), 2000, pp. 3425-3430
Authors:
Lakenbrink, C
Lapczynski, S
Maiwald, B
Engelhardt, UH
Citation: C. Lakenbrink et al., Flavonoids and other polyphenols in consumer brews of tea and other caffeinated beverages, J AGR FOOD, 48(7), 2000, pp. 2848-2852
Authors:
Degenhardt, A
Engelhardt, UH
Wendt, AS
Winterhalter, P
Citation: A. Degenhardt et al., Isolation of black tea pigments using high-speed countercurrent chromatography and studies on properties of black tea polymers, J AGR FOOD, 48(11), 2000, pp. 5200-5205
Authors:
Schulz, H
Engelhardt, UH
Wegent, A
Drews, HH
Lapczynski, S
Citation: H. Schulz et al., Application of near-infrared reflectance spectroscopy to the simultaneous prediction of alkaloids and phenolic substances in green tea leaves, J AGR FOOD, 47(12), 1999, pp. 5064-5067