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
Jiang Jingshan Jiang Jingshan Jiang Jingshan () is a leading Chinese scientist with expertise in microwave remote sensing and spaceflight engineering. He had been the director of the Center for Space Science and applied Research, Chinese Academy of Sciences, deputy chief designer of the Chinese Lunar Exploration Program. and an aerospace expert of China's 863 Program. He is an academician of Chinese Academy of Engineering, International Eurasian Academy of Sciences and a member of CN COSPAR. Jiang is of Korean descent and was born on Feb 8th, 1932, in Longjing, in Yanbian Korean Autonomous Prefecture, Jilin Province, China. He became the first