HPLC–DAD–ESI-MS/MS screening of bioactive components from Rhus coriaria L. (Sumac) fruits

Abstract

Rhus coriaria L. (sumac) is an important crop widely used in the Mediterranean basin as a food spice, and also in folk medicine, due to its health-promoting properties. Phytochemicals present in plant foods are in part responsible for these consequent health benefits. Nevertheless, detailed information on these bioactive compounds is still scarce. Therefore, the present work was aimed at investigating the phytochemical components of sumac fruit epicarp using HPLC-DAD-ESI-MS/MS in two different ionisation modes. The proposed method provided tentative identification of 211 phenolic and other phyto-constituents, most of which have not been described so far in R. coriaria fruits. More than 180 phytochemicals (tannins, (iso)flavonoids, terpenoids, etc.) are reported herein in sumac fruits for the first time. The obtained results highlight the importance of R. coriaria as a promising source of functional ingredients, and boost its potential use in the food and nutraceutical industries.

Activity Guided Fractionation of Arum italicum Miller Tubers and the LC/MS-MS Profiles

“…In subfractions, puerarin, vitexin and apigenin-6,8-C-pentoside-hexoside and a flavonoid derivative have been identified by interpreting spectra information. Vitexin has been identified in Arum dioscoridis and A. palaestinum extracts in previous studies [32,33]. Vitexin drags colon cancer cells into apoptosis and prevents cell growth; and drags leucocythemia cells (U937) into apoptosis due to its effects on mitochondrial signaling pathways [34].…”

Antioxidant properties and UPLC–MS/MS profiling of phenolics in jacquemont’s hazelnut kernels (Corylus jacquemontii) and its byproducts from western Himalaya

“…H] ? at m/z 303 was identified as quercetin, which further identified by comparison with retention time and UV of standard compound (Abu-Reidah et al 2015). Quercetin was present in all jacquemont's hazelnut extracts.…”

“…H] ? at m/z 449, which after the loss of rhamnoside moiety yielded a characteristic fragment of quercetin at m/z 303 (Abu-Reidah et al 2015) (Suppl. Figure 17).…”

Pharmacological properties of cashew (Anacardium occidentale)

“…The family Anacardiaceae covers over 70 genera in which more than 600 species are distributed in tropical, sub-tropical and temperate regions in the world (Engels et al, 2012). The family is rich in important secondary metabolites with varieties of interesting biological activities (Abu-Reidah et al, 2015).…”