Phenolic Analysis for Classification of Mulberry (Morus spp.) Leaves according to Cultivar and Leaf Age

Figure 1

Typical HPLC chromatograms of phenolic compounds of different mulberry leaves: tip of leaves cv. Buriram 60 (a), young leaves cv. Buriram 60 (b), old leaves cv. Buriram 60 (c), tip of leaves cv. Sakonnakhon (d), young leaves cv. Sakonnakhon (e), old leaves cv. Sakonnakhon (f), tip of leaves cv. Khunphai (g), young leaves cv. Khunphai (h), and old leaves cv. Khunphai (i), detected at 350 nm and zoom-in spectrum range of 10–40 min. The peak numbers are corresponding to UV spectrum and MS data in Table 1.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)