Parentucellia latifolia subsp. latifolia: A potential source for Loganin (cas 18524-94-2) iridoids by HPLC-ESI-MSn technique

Add time:09/06/2019    Source:sciencedirect.com

This study attempts to compare the pharmaceutical potential (antioxidant and key enzyme inhibition of clinical relevance) of organic and aqueous extracts of Parentucellia latifolia (L.) Caruel subsp. latifolia (L.) Caruel as well as phytochemical composition. The phytochemical compounds were evaluated by spectrophotometric methods (for total amounts) and HPLC-ESI-DAD-MSn (for individual compounds). The extracts were screened for antioxidant abilities by in vitro assays. Inhibition effects were also investigated against a set of enzymes linked to major health problems. Generally, the methanol (MeOH) and aqueous extracts displayed higher scavenging abilities on radicals and reductive effects when compared with the ethyl acetate (EtOAc) extract. On the other hand, the EtOAc extract was the most active inhibitor on cholinesterases (1.81–1.88 mg GALAE/g), amylase (0.70 mmol ACAE/g), glucosidase (2.85 mmol ACAE/g) and lipase (33.24 mg OE/g). The highest TPC was observed in the aqueous extract (25.07 mg GAE/g) while MeOH extract possessed the highest level of TFC (44.15 mg RE/g) and TPAC (3.46 mg CE/g). LC-MSn metabolite profiling indicated that Loganin (cas 18524-94-2) and its isomers, rutin, and luteolin-O-hexoside were the most abundant compounds. Our results suggest that P. latifolia may be valuable source of phyto-agents for the management of noncommunicable diseases.

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