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Resolution of DL-theanine by Aminoacylase and the Separation of Productions
GUO Li-yun, LIU Yi, JIA Xiao-juan, LI Zhao-lan, JIAO Qing-cai
Journal of Tea Science . 2006, (1): 31 -36 .  DOI: 10.13305/j.cnki.jts.2006.01.005