Extraction of polyphenols from black tea – Conventional and ultrasound assisted extraction

• Published in: Ultrasonics sonochemistry Vol. 21; no. 3; pp. 1030 - 1034
• Main Authors: Both, Simon, Chemat, Farid, Strube, Jochen
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.05.2014; Elsevier
• Subjects: Black tea; Chemical and Process Engineering; Chemical Fractionation - instrumentation; Chemical Fractionation - methods; Chemical Phenomena; Chemistry; Engineering Sciences; Exact sciences and technology; Extraction; Food engineering; General and physical chemistry; Kinetics; Life Sciences; Maceration; Particle Size; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Polyphenols - chemistry; Polyphenols - isolation & purification; SEM; Tea - chemistry; Ultrasonic chemistry; Ultrasonics - instrumentation; Ultrasonics - methods; Ultrasound; Extraction; SEM; Black tea; Maceration; Ultrasound; Scanning electron microscopy; Polyphenol; Sonochemistry

•Physico-chemical fundamentals of ultrasound assisted extraction were investigated.•Influence on equilibrium behavior and mass transport kinetics are discussed by use of particle size and SEM measurements.•Process alternatives for black tea extraction were developed and evaluated.•Multi-stage macera...