Chemical and Pharmacological Evaluation of Hulls of Prunus dulcis Nuts

Table 1

Results of the LC-MS/MS analysis of the 70% ethanol extract of almond hulls.

No	RT (min)	Fragmentation pattern	Name	Reference
1	9.273	152.9, 109	Protocatechuic acid (dihydroxybenzoic acid)	[6]
2	10.051, 10.687, 13.658	577.2, 451, 439, 425, 407, 289.2	(epi)Catechin-(epi)catechin	[15]
3	10.616	865.3, 739, 713, 695, 577, 451.2, 425, 407, 289.1	(epi)Catechin-(epi)catechin-(epi)catechin	[15]
4	11.099, 28.821, 29.672	289.1	Catechin	[6]
5	11.704	353.1, 335.3	Chlorogenic acid	[1]
6	13.048	431.3, 285.2	Kaempferol rhamnoside	[7]
7	16.119	623.4, 315.1, 299	Isorhamnetin rutinoside	[15]
8	16.187	315.2, 297.4	Isorhamnetin	[15]
9	20.207	371.2, 353.2	Chlorogenic acid monohydrated	[19]
10	21.258	284.9	Kaempferol	[7]
11	22.167	367.1, 352, 336.2, 321.1, 306.2, 277.8	3-Prenyl-4-O-β-glucopyranosyl oxy-4-hydroxy benzoic acid	[6]
12	23.085, 26.093	325.2, 307, 289.2	(epi)Catechin dihydrated	[20]
13	26.02, 26.582, 29.725	307.3, 289.1	(epi)Catechin monohydrated	[20]
14	31.371	455.2	Ursolic acid	[6]
15	37.803, 39.084	295.2, 277.1	Amygdalactone	[21]