Application of Membrane Filtration Technology in Green Tea Extraction

Membrane filtration technology realizes low-temperature clarification of green tea extract. Based on laboratory tests, this paper compares green tea raw extract, primary filtered intermediate liquid and final clear filtrate after graded membrane treatment. The process removes colloids and suspended impurities, retains active ingredients such as tea polyphenols, eliminates later precipitation issues, and provides a physical purification method for the deep processing of green tea.