Modeling the Influence of Extraction Temperature on the Ellagitannin and Antioxidant Profiles of “Wonderful” Pomegranate Peel Using Advanced Chemometrics Analysis

Exploring the Potential of Extracts from Sloanea medusula and S. calva: Formulating Two Skincare Gels with Antioxidant, Sun Protective Factor, and Anti-Candida albicans Activities

“…The fragment ion analysis suggests the neutral loss of 782 Da and 651 Da, resulting in two peaks at m / z 169 (C 7 H 5 O 5 ) and m / z 300 (C 14 H 5 O 8 ) that correspond to the galloyl group (molecular ion) and a possible ellagic acid ion ( Supplementary Figures S4 and S5 ), respectively. In the literature, ESI-MS analysis of geraniin (positive ion mode) has shown fragment ions at m / z 951, 554, 446, and 247 [ 41 ], and granatin B (negative ions mode) at m / z 951, 783, 605, and 300 [ 42 ].…”

“…The fragment ion analysis suggests the neutral loss of 782 Da and 651 Da, resulting in two peaks at m/z 169 (C7H5O5) and m/z 300 (C14H5O8) that correspond to the galloyl group (molecular ion) and a possible ellagic acid ion (Supplementary Figure S4 and S5), respectively. In the literature, ESI-MS analysis of geraniin (positive ion mode) has shown fragment ions at m/z 951, 554, 446, and 247 [41], and granatin B (negative ions mode) at m/z 951, 783, 605, and 300 [42]. In our study, the HPLC-MS analysis of the two extracts led to the tentative identification of seven compounds, including glycolic acid 4-hydroxy-3,5-di-t-butylbenzyl ester (identified in both Sloanea species), α-sorinin and two hydrolyzable tannins (granatin B and geraniin) for S. medusula, and three pentacyclic triterpenoids (uralenic acid, asiatic acid, and asiatic acid triacetate) for S. calva.…”