Table 1. Identification of Analytes with R_f Values by HPTLC Profiling under Optimized Conditions.

compound. no.	analytes	Rf	before derivatization-UV (254 nm)	after derivatization-visible	after derivatization-UV (366 nm)
1	picrocrocin	0.63	black
2	trans-4-GG-crocin	0.15	light gray	yellow	light gray
3	trans-3-Gg-crocin	0.33	light gray	yellow	light gray
8	kaempferol 3-O-β-sophoroside	0.53	light gray	light yellow	yellowish white
9	kaempferol-O-glucoside	0.73	light gray	pale yellow	yellowish white
10	quercetin-3,4′-di-O-glucoside	0.42	light gray	yellowish-brown	yellowish orange