Gas chromatographic and mass spectrometric characterization of the organic acids extracted from some preparations containing lyophilized royal jelly

Gas chromatographic–mass spectrometric investigation of volatile and extractable compounds of crude royal jelly

“…The isolation of analytes from complex matrix was carried out by making use of HS-SPME (volatile compounds), as well as successive extraction of RJ with solvents of different polarity. As there are some inconsistencies in the results concerning the contents of free amino acids in royal jelly described in the literature [24,28] and those obtained in our research [29], we paid particular attention to possible causes of the discrepancy.…”

“…In our previous work [29] 35 aliphatic acids were identified from the ether extract of commercial preparations containing lyophilized royal jelly. These acids were characterized by their GC retention parameters and mass spectra.…”

Oocyte maturation with royal jelly increases embryo development and reduces apoptosis in goats

“…Reprod., v.15, n.2, p.124-134, Apr./Jun. 2018 125 feed the queen honeybee throughout the larval period (Viuda-Martos et al, 2008;Isidorova et al, 2009). It contains the following: water (50-60%), proteins (18%), carbohydrates (15%), lipids (3-6%), mineral salts (1.5%), and vitamins, in addition to various bioactive substances (Howe et al, 1985;Boselli et al, 2003;Nagai and Inoue 2004;Kodai et al, 2007;Tamura et al, 2009).…”

RP-HPLC–ESI–QTOF/MS2 based strategy for the comprehensive metabolite profiling of Sclerocarya birrea (marula) bark

“…Dicarboxylic fatty acids corresponding to deprotonated molecules at m/z 187, 201, and 215 showed neutral loses of H 2 O, CO 2 , and H 2 O-CO 2 ; therefore they were tentatively assigned as nonanedioic (90), decanedioic (93), and undecanedioic (95) acids (Abu-Reidah et al, 2013a;Freire et al, 2002;Du et al, 2007). However, MS 2 analysis of hydroxylfatty acids corresponding to molecular ions at m/z 173, and 187 showed neutral loses of H 2 O-CO, and thus, they were tentatively characterized as hydroxynonanoic (91) and hydroxydecanoic (94) acids (Rebollido-Fernandez et al, 2012;Isidorov et al, 2009).…”