Robust and Automated Internal Quality Grading of a Chinese Green Tea (Longjing) by Near-Infrared Spectroscopy and Chemometrics

Table 1

Longjing tea of different grades.

Batch number	Grade	Sample size	Tea plants
1	I	120	Fancun
2	I	60	Juxi
3	I	60	Longjingcun
4	I	60	Maojiabu
5	I	45	Shangmanjuelong
6	I	60	Tangjiashan
7	I	60	Yangmeiling
8	II	60	Changchun
9	II	60	Daqingcun
10	II	180	Hejiacun
11	II	60	Longmenkan
12	II	120	Lichunyuan
13	II	60	Shangcheng
14	II	60	Tongwucun
15	II	60	Waitongwucun
16	II	240	Zhoupu
17	III	60	Chunan
18	III	60	Fuwen
19	III	60	Jiangjia
20	III	60	Jieshou
21	III	105	Lingqiao
22	III	60	Longguan
23	III	60	Lujiaren
24	III	120	Panshan
25	III	60	Lishi
26	III	60	Tianyu
27	III	60	Tongrunsheng
28	III	180	Wenchang
29	III	75	Wubaochun
30	III	60	Xiabao
31	III	240	Xukou
32	III	60	Zuokou