Figure 2

HPTLC profiles of
(a) L-dopa standard (in 1:1 formic acid-alcohol, fresh), (b) degraded L-dopa standard (1:1 formic acid-alcohol, 24 h), (c) seed extract of Mucuna pruriens var. pruriens, accession number 4503 (five step extraction, 1:1 formic acid-alcohol, 24 h) and (d) seed extract of M. pruriens var. utilis, accession number 4504 (five step extraction, 1:1 formic acid-alcohol, 24 h); X-axes - Rf, Y-axes - AU.