Phytochemical Analysis and Antimicrobial/Antioxidant Activity of Cynodon dactylon (L.) Pers. Rhizome Methanolic Extract

Table 4

Phenolic compounds identified in the methanolic extract of C. dactylon rhizomes.

Phenolic compound	Molecular formula	Retention time (min)	Level (%)
Propanoic acid, 2-oxo-	C3H4O3	3.79	1.42
Thymol	C10H14O	5.54	1.23
Pantolactone	C6H10O3	9.84	0.83
2-Furancarboxaldehyde, 5-methyl-	C6H6O2	7.75	1.55
Pentanoic acid, 4-oxo-	C5H8O3	9.97	0.75
Levoglucosenone	C6H6O3	12.07	2.48
3-Hydroxy-1-methylpyridinium hydroxide	C6H9NO2	13.77	1.62
Phytol	C20H40O	15.28	1.12
Propanedioic acid, phenyl-	C9H8O4	15.48	1.28
Hydroquinone	C6H6O2	16.04	66.89
1,3-Benzenediol, 5-chloro-	C6H5ClO2	17.41	1.22
Benzaldehyde, 3-(chloromethyl)-4-methoxy-	C10H9ClO4	18.63	0.85
Ethanone, 1-(4-hydroxy-3-methoxyphenyl)-	C9H10O3	20.15	0.52
1,6-Anhydro-á-d-glucopyranose (levoglucosan)	C6H10O5	20.29	1.05
Vanillic acid	C8H8O4	21.30	1.35
Syringic acid	C9H10O5	24.94	0.98
Dimethoxybicyclo[3.3.1]nona-2,4-dione	C11H16O4	26.97	0.92