Longjing tea from bluish to deep green after steeping. Before infusion, higher quality Longjing teas have a very tight, flat shape and light green color. A study by Wang and Ruan (2009) found that one aspect of the perceived low quality of Longjing teas was a higher concentration of chlorophyll, producing a darker green color. The study revealed that free amino acids and theanine concentrations contribute positively to what is perceived as a good taste. Longjing tea was granted the status of Gong Cha, or imperial tea, in the Qing dynasty by the Kangxi Emperor. According to the legend, The Kangxi Emperor's
Zu Feng him Best New Actor Award at the 2011 Chinese Young Generation Film Forum. He also won the Best Supporting Actor Award for his performance in "Cheongsam". In 2014, Zu co-starred with Chen Daoming and Gong Li in "Coming Home", directed by Zhang Yimou and written by Yan Geling and Zou Jingzhi. In May 2011, Zu married Liu Tianchi (), a teacher at Central Academy of Drama. Zu Feng Zu Feng (; born 23 February 1974) is a Chinese actor and director. Zu first attracted attention in 2008 for his role as Li Ya in the successful TV drama "Lurk". He