Research Article

Nutraceutical Potential of Tinctures from Fruits, Green Husks, and Leaves of Juglans regia L.

Table 1

Identification and occurrence of major phenolic compounds in Juglans regia fruits (F3, F25), green husks (GH), and leaves (L) tinctures. Elution times correspond to the separation by UPLC. Molecular mass was determined by MS as . Compounds were fragmented in MS/MS experiments and the values for the main daughter ions are given in brackets.

No.Elution time (min)[M-H] ion, MS2 daughter ionsUV absorbance peaks (nm)Compound identityL
F3F25GH

11.09169 (125)271Gallic acid++++
21.99153 (109)259, 293Protocatechuic acid++++
32.47353 (191, 179)3243-Caffeoylquinic acid++++
42.97181297Unknown++++
53.16341 (281, 179)325Caffeic acid hexoside I+
63.40337 (163)3103-p-Coumaroylquinic acid++++
73.64341 (281, 179)323Caffeic acid hexoside II++
84.06353 (179,173)3254-Caffeoylquinic acid++++
94.26451 (405)310Unknown+
104.60339 (159)258, 313Unknown++++
114.76325 (265, 163)310p-Coumaric acid hexoside+
124.88177 (159, 115)259, 317Unknown+++
135.14337 (173)3114-p-Coumaroylquinic acid++++
145.29281267Unknown+
155.60163 (119)308p-Coumaric acid++++
165.67193 (175)260, 364Unknown+++
175.86513 (453, 409, 289)260, 364Unknown++
185.99197 (169, 125)273Unknown++
196.38435 (285, 151)290Unknown+
206.79381 (161)253, 360Unknown++
216.84435 (303, 285, 151)290Unknown++
227.24463 (301)255, 353Quercetin-3-O-hexoside I++
237.41491 (331, 271)264Unknown+++
247.47463 (301)255, 352Quercetin-3-O-hexoside II+
257.57435 (303, 285, 151)290Unknown++++
267.83433 (301)255, 352Quercetin-3-O-pentoside I+
278.02433 (301)255, 354Quercetin-3-O-pentoside II+
288.11447 (285)264, 350Kaempferol-3-O-hexoside+
298.28433 (301)256, 352Quercetin-3-O-pentoside III+
308.61447 (301)255, 346Quercetin-3-O-deoxyhexoside++++
318.86417 (285)265, 346Kaempferol-3-O-pentoside I+
329.05417 (285)265, 346Kaempferol-3-O-pentoside II+
339.24477 (285, 151)290Unknown+
349.41417 (285)364, 345Kaempferol-3-O-pentoside III+
359.84431 (285)264Kaempferol deoxyhexoside+
3610.37501 (281, 179)324 Dicaffeic acid hexoside+
3710.51489 (301)252, 337Quercetin-3-O-acetyl-deoxyhexoside I+
3810.57475 (301)254, 348Quercetin-3-O-acetyl-pentoside+
3911.00609 (463, 301)263Quercetin deoxyhexoside-hexoside+
4011.30489 (301)255, 361Quercetin-3-O-acetyl-deoxyhexoside II+
4111.68485 (265, 163)262, 312Unknown+
4211.84473 (285)265, 312Kaempferol acetyl-deoxyhexoside I+
4312.34469 (145)300Unknown+
4412.49473 (285)264, 311Kaempferol acetyl-deoxyhexoside II+
4512.72473 (285)262Kaempferol acetyl-deoxyhexoside III+
4613.32285265, 363Kaempferol+

Plus (+) and minus (−) signs represent occurrence of each compound.