Table 3.

Mass Spectral Characteristics of Phenolics Identified in Methanol Extract of Hazelnut Skins.

Compound	m/z (g/mol)	Tonda di Giffoni	DEV. SD	Tonda Gentile Romana	DEV. SD
Chlorflavonin	378.8	3.32 × 104	2.29 × 104	3.54 × 104	7.78 × 103
Flavonol 7-O-beta-D-glucoside	416.4l	1.03 × 106	2.10 × 106	9.68 × 104	1.66 × 104
Naringenin 7-O-beta-D-glucoside	434.4l	3.91 × 106	3.92 × 106	4.26 × 105	7.01 × 104
Leucocyanidin	306.27	3.45 × 106	4.30 × 106	1.89 × 106	1.84 × 105
Caffeic acid 3-glucoside	342.3	6.31 × 104	3.19 × 104	2.50 × 105	3.23 × 104
Epigallocatechin-(4beta->8)-epicatechin-3-O-gallate ester	746.6	6.55 × 105	1.35 × 106	1.02 × 105	9.82 × 103
Kaempferol 3-O-beta-D-glucosylgalactoside	610.5	8.40 × 105	1.75 × 106	5.26 × 104	8.20 × 103
Vitexin 2---O-beta-D-glucoside	593.5	6.18 × 105	1.31 × 106	8.82 × 104	1.23 × 104
Kaempferitrin	578.5	1.74 × 106	2.80 × 106	7.32 × 105	2.05 × 106
(-)-Catechin	290.27	1.93 × 107	2.11 × 107	6.31 × 107	9.78 × 106
Flavin	453.3	2.15 × 106	2.40 × 106	1.93 × 105	1.56 × 104
n-Propyl gallate	212.2	3.77 × 106	3.75 × 106	4.03 × 106	7.47 × 105
Methyl caffeate	194.18	1.01 × 106	8.16 × 105	1.44 × 106	2.40 × 105
Laricitrin	332.26	1.86 × 105	4.56 × 104	2.41 × 105	5.02 × 104
Syringetin	346.3	8.81 × 104	1.32 × 104	5.22 × 104	6.87 × 103
Apigenin	270.24	5.72 × 106	1.31 × 106	4.69 × 106	7.24 × 105
Kaempferol	286.24	1.06 × 106	2.52 × 105	2.13 × 106	4.12 × 105
Caffeate	180.16	3.67 × 105	5.69 × 104	6.77 × 105	8.26 × 104
3-Coumaric acid	164.16	2.46 × 106	3.65 × 105	2.56 × 106	3.86 × 105
Neochlorogenic acid	354.31	3.52 × 105	6.34 × 104	1.80 × 104	2.90 × 103
Salicylate	137.11	5.15 × 107	9.23 × 106	2.85 × 107	5.83 × 106
Vitexin	432.4	1.91 × 106	3.80 × 105	3.30 × 106	6.04 × 105
Astragalin	448.4	1.45 × 107	1.48 × 106	2.57 × 107	2.67 × 106
Quercetin 3-O-glucoside	464.4	1.23 × 106	8.96 × 105	3.20 × 106	3.99 × 105
Naringenin	272.25	4.83 × 106	1.06 × 106	5.77 × 106	1.07 × 106
Eriodictyol	288.25	3.73 × 106	3.30 × 105	7.03 × 106	8.10 × 105
Luteoforol	290.27	4.15 × 107	6.45 × 106	6.60 × 107	1.01 × 107
Ferulate	194.18	1.61 × 106	3.04 × 105	1.47 × 106	2.32 × 105
Sinapate	224.21	1.35 × 106	7.66 × 105	5.31 × 106	7.88 × 105
Sinapine	310.36	1.43 × 105	3.07 × 104	4.68 × 105	8.39 × 104
4-Hydroxystyrene	120.15	2.65 × 107	3.53 × 106	1.07 × 108	1.34 × 107
Salicylaldehyde	122.12	4.84 × 106	8.03 × 105	9.72 × 106	1.19 × 106
Isochorismate	224.17	3.77 × 105	1.01 × 105	1.48 × 105	1.79 × 104
Salicin	286.28	4.12 × 105	4.67 × 105	6.24 × 105	9.80 × 104
2-3-Dihydroxybenzoate	153.11	1.34 × 107	1.53 × 106	6.16 × 106	8.50 × 105
p-Coumaroyl quinic acid	338.31	2.58 × 106	2.83 × 106	1.93 × 105	3.59 × 104
Naringin chalcone	580.5	1.46 × 106	1.12 × 106	7.10 × 105	1.14 × 105
Kaempferide	300.26	8.11 × 104	4.59 × 104	3.24 × 105	6.81 × 104
Quercetin	302.2	8.58 × 106	1.94 × 106	5.10 × 106	1.01 × 106
Rutin	610.5	2.94 × 105	1.08 × 105	9.86 × 105	2.05 × 105
Myricetin	318.23	1.04 × 106	1.92 × 105	2.36 × 105	3.51 × 104

Means ± SD (n = 9). Data are represented as peak intensity.