Elucidation of total phenolic content and antioxidant activity in medicinal Aroid, Alocasia longiloba Miq.

Abstract

Alocasia longiloba Miq belongs to Araceae family, believed to have the medicinal potential. However, the scientific evidences on this plant were limited. Therefore, this study aimed to evaluate the total phenolic content (TPC) and antioxidant activity of the different extracts (methanol, ethyl acetate and hexane) of A. longiloba leaf blades. The TPC was investigated by Folin-Ciocalteu method and antioxidant activity was determined by DPPH scavenging assay. The results showed ethyl acetate extract had the highest content of phenolic with 46.013 mg GAE/g followed by methanol extract (32.936 mg GAE/g) and hexane extract (31.782 mg GAE/g). The hexane extract exhibited the highest DPPH antioxidant acitivity, followed by ethyl acetate and methanol with IC50 values 2.519 µg/mL, 2.758 µg/mL and 9.542 µg/mL respectively. The results indicate A. longiloba has natural sources of antioxidant that can be used for the medicinal purposes.

Comparative phytochemical study of methanolic and ethanolic extracts of Thymus linearis and their antibacterial and antioxidant potential

“…Reactive oxygen species or oxidants play a crucial role in damaging cells, tissues, and biological systems of plants, their extracted products, and so forth. The quantity of these reactive oxygen species can be controlled or minimized by the action of certain types of antioxidants present in various parts of the plants (Nur‐Izzati et al, 2021). All the methanolic and ethanolic extracts (flower, leaf, and stem) of T. linearis exhibited a significant amount of antioxidant potential.…”

Phytochemical profiling, antimicrobial, and antioxidant activities of hydroethanolic extracts of prickly pear (Opuntia ficus indica) fruit and pulp

“…The results regarding TFC of whole fruit and pulp are in good agreement with that reported by Elazzouzi et al ( 2002 ) and Lamia et al ( 2018 ) who observed that TFC detected in Opuntia pulp was 22.47 ± 2.1 mg RE/100 g DW. These variations in TFC might be due to the solubility capacity of matrix components and the polarity of a hydroethanolic mixture (Luque‐Rodriguez et al, 2007 ; Nur‐Izzati et al, 2021 ; Shi et al, 2003 ; Toure et al, 2015 ). Previously, reported findings have also suggested that solvent polarity maximizes the extraction yields of flavonoids.…”

Acute oral toxicity assessment and anti-hyperuricemic activity of Alocasia longiloba extracts on Sprague-Dawley rats

“…Medicinal plants or herbs have long been utilized in folk medicines to treat several ailments in several parts of the world ( Okoye et al, 2014 , Oladeji, 2016 , Ferid et al, 2020 , Nur-Izzati et al, 2021 ). Ifeoma and Oluwakanyinsol (2013) , reported that approximately one-fourth of pharmaceutically prescribed in the world contains at least one plant-based constituent.…”