Research Article

NMR Confirmation and HPLC Quantification of Javamide-I and Javamide-II in Green Coffee Extract Products Available in the Market

Table 3

The amounts of javamide-I in seven green coffee samples. Seven green coffee extract samples (S1–S7) as described in Table 1 were individually extracted twice with 70% MeOH extracts (50 mL), providing the 1st and 2nd extracts. The amounts of javamide-I were presented as mg per 1 g green coffee sample ().

Sample 1st (mg) 2nd (mg) 1st and 2nd (mg) 1st/2nd ratio (%)

S197.0
S297.6
S3ND
S4NDND
S5ND
S6NDND
S7ND