LC/MS guided identification of metabolites of different extracts of Cissus quadrangularis

Phytochemical profile, in vitro anti‐inflammatory, and anti‐xanthine oxidase activity of durian fruit rind fractions (Durio zibethinus)

“…A total of twelve compounds that belong to different chemical classes were identified in fraction F2 during a 20 min elution (Table 4 and Fig The phytochemical compounds were determined based on their registered mass spectra m z À1 databases. flavonoid-chalcone, eluted at 2.015 min, while five flavonoids-flavonols were also identified: quercetin-3-O-arabinoside (6.633 min), quercetin glucoside (6.833 min), quercetin-3-O-(6 00 -trans p-coumaroyl-2 00gly) Rh (7.425 min The second terpenoid, amyrone succinyl, eluted at 6.347 min, with a mass of 525.4439 m z À1 , previously reported by Kaur et al (2022). A nonflavonoid (stilbene glycosides) pallidol malonyl with a mass of 561.5223 m z À1 was eluted at 8.763 min, observed in previous studies (Keylor et al, 2015;Kaur et al, 2022).…”

“…flavonoid-chalcone, eluted at 2.015 min, while five flavonoids-flavonols were also identified: quercetin-3-O-arabinoside (6.633 min), quercetin glucoside (6.833 min), quercetin-3-O-(6 00 -trans p-coumaroyl-2 00gly) Rh (7.425 min The second terpenoid, amyrone succinyl, eluted at 6.347 min, with a mass of 525.4439 m z À1 , previously reported by Kaur et al (2022). A nonflavonoid (stilbene glycosides) pallidol malonyl with a mass of 561.5223 m z À1 was eluted at 8.763 min, observed in previous studies (Keylor et al, 2015;Kaur et al, 2022). Subsequently, another amino acid, 2-amino butyric acid (104.1066 m z À1 ), and a phenolic compound, vanillic acid 4-sulphate (248.0031 m z À1 ) were eluted at 16.738 min and 18.336 min, respectively.…”

“…(2017) with a mass of 246.3 m z −1 . Following santonin, leucyl alanine (203.0519 m z −1 ), an amino acid, eluted at 1.598 min, previously detected in the chemical profile of the water extract from Cissus quadrangularis (Kaur et al ., 2022). Phrolizin, a flavonoid‐chalcone, eluted at 2.015 min, while five flavonoids‐flavonols were also identified: quercetin‐3–O‐ arabinoside (6.633 min), quercetin glucoside (6.833 min), quercetin‐3‐O‐(6″‐trans p‐ coumaroyl‐2″‐gly) Rh (7.425 min), dihydroquercetin‐glucosyl‐rhamnosyl (7.838 min), with masses of 271.99 m z −1 , 433.3511 m z −1 , 465.3761 m z −1 , 738.5483 m z −1 , and 615.4943 m z −1 , respectively.…”

“…The first eluted component, santonin (terpenoids), displayed a mass of 246.0881 m z À1 at 1.226 min, consistent with previous findings by Sakipova et al (2017) with a mass of 246.3 m z À1 . Following santonin, leucyl alanine (203.0519 m z À1), an amino acid, eluted at 1.598 min, previously detected in the chemical profile of the water extract from Cissus quadrangularis(Kaur et al, 2022). Phrolizin, a…”

Application of Screen Printed Diamond Electrode, Coupled with “Point-of-Care” Platform, for Nanomolar Quantification of Phytonutrient Pterostilbene in Dietary Supplements: An Experimental Study Supported by Theory

“…Liquid chromatographic and spectrophotometric methods have found a wide application in the quantification and/or evaluation of antioxidative activity of PTS in food/drinks [10,11] and pharmaceuticals [11,12]. Moreover, these methods were used in preclinical treatment [13] for the explanation of PTS bioavailability and distribution in certain animal tissues [14,15], as well as for evaluation of the biochemical kinetics mechanism [16].…”