Phytochemical Characterization and Antioxidant and Enzyme Inhibitory Activities of Different Parts of Prinsepia utilis Royle

Table 3

Quantitation of phenolic substances in the flower, leaf, and stem of Prinsepia utilis Royle by UPLC-ESI-HRMS/MS.

Peak no.	Compounds	Flower (μg/g)	Leaf (μg/g)	Stem (μg/g)
1	p-Coumaric acid	381.60 ± 19.08^a	265.60 ± 13.28^a	22.85 ± 1.14^b
2	Catechin	742.60 ± 37.13^a	448.86 ± 22.44^b	227.99 ± 11.40^c
4	Isoschaftoside	463.58 ± 23.18^b	352.65 ± 17.63^c	537.65 ± 26.88^a
5	Kaempferol-3-O-glucoside	9.39 ± 0.47^a	ND	ND
6	Rutin	8822.63 ± 441.13^a	8484.19 ± 424.21^a	1801.33 ± 90.07^b
7	Quercetin-3-O-glucoside	744.64 ± 37.23^a	237.85 ± 11.89^b	33.54 ± 1.68^c
8	Kaempferol-3-O-rhamnosylhexose	269.34 ± 13.47^b	1069.80 ± 53.49^a	29.14 ± 1.46^c
9	Quercetin 3-(6-O-acetyl-beta-glucoside)	668.61 ± 33.43^a	46.00 ± 2.30^b	8.08 ± 0.40^b
10	Isorhamnetin-3-O-rutinoside	1944.96 ± 97.25^a	1108.94 ± 55.45^b	529.00 ± 26.45^c
11	Kaempferol-3-O-hexoside	65.72 ± 3.29^a	23.81 ± 1.19^b	3.91 ± 0.20^c
12	Isorhamnetin-3-O-glucoside	30.34 ± 1.52^c	57.71 ± 2.89^a	37.60 ± 1.88^b

All the values are expressed as mean ± SD (n = 3). Values with different superscript letters in each column indicate significant differences among samples. Compounds 1, 2, 4, 5, 6, 7, 10, and 12 were quantified by the calibration curve of the corresponding commercial standard; compounds 8 and 11 were quantified by the calibration curve of compound 5; and compound 9 was quantified by the calibration curve of compound 7. The result is expressed as μg/g dry matter. ND = not detected.