Phytochemical, GC-MS analysis and antioxidant activities of leaf methanolic extract of Lai (Durio kutejensis), the endemic plant of Kalimantan, Indonesia

Abstract

Abstract. Manurung H, Susanto D, Kusumawati E, Aryani R, Nugroho RA, Kusuma R, Rahmawati Z, Sari RD. 2022. Phytochemical, GC-MS analysis and antioxidant activities of leaf methanolic extract of Lai (Durio kutejensis), the endemic plant of Kalimantan, Indonesia. Biodiversitas 23: 5587-5594. Lai (Durio kutejensis Hassk. Beck) is a fruit plant species endemic to Kalimantan, Indonesia. The leaves are traditionally used to treat several diseases. Currently, there is no scientific validation of the phytochemical content, bioactive compounds, and biological activities of leaf extracts of this plant from the East Kalimantan Province of Indonesia. So, this study aimed to determine the phytochemical compounds, bioactive compounds, and antioxidant activity of crude leaf methanol extract of D. kutejensis. Gas chromatography-mass spectrometry (GC-MS) analysis was performed to determine the bioactive compounds of lai leaf methanol extract. DPPH (2,2-diphenyl-1-picrylhydrazyl) was used to evaluate antioxidant activity. Screening of phytochemical compounds of the leaf methanol extract showed the presence of alkaloids, flavonoids, phenolics, saponins, and steroids. The leaf extract of lai contains total phenolic (104,55 µg GAE g-1 extract) and total flavonoid (281,41 µg QE g-1extract). The extract has weak antioxidant activity with an IC50 of 163,849 ppm. GC-MS analysis confirmed the presence of 43 identified compounds in the crude leaf methanolic extract of D. kutenjesis such as; 2-(1,1-dimethyl ethyl)-Phenol; 4-(3-hydroxy-1-propenyl)-2-methoxy-Phenol (Coniferyl alcohol); E7-Decenylacetate; Octadecanoic acid (Stearic acid); 1,3,6-Octatriene, 3,7-dimethyl-, (Z)-; Palmitaldehyde, diisopentyl acetal; Ledol; Estran-3-one, 17-(acetyloxy)-2-methyl-, (2.alpha.,5.alpha.,17.beta.)-. This study revealed that the leaf methanol extract of D. kutejensis is a good resource of many bioactive compounds that justifies the traditional usage of this species.

Synergistic Antibacterial Screening of Cymbopogon citratus and Azadirachta indica: Phytochemical Profiling and Antioxidant and Hemolytic Activities

“…The important biologically active compounds include thymine, 4-piperidinone, phytol, vitamin E, campesterol, stigmasterol, sitosterol, cannabidiol, and lanosterol in ethanolic extracts of A. indica while mequinol, glutarimide (an antibiotic), adrenaline (a physiological metabolic regulatory hormone in humans), guanine, etc. were present in its aqueous extract.…”

“…The GC−MS results revealed the presence of many bioactive compounds which occur with their specific respective retention times and peak areas. The important biologically active compounds include thymine, 49 4-piperidinone, 50 phytol, 51 vitamin E, 52 campesterol, stigmasterol, sitosterol, 53 cannabidiol, 52 and lanosterol 54 in ethanolic extracts of A. indica while mequinol, 55 glutarimide (an antibiotic), 56 adrenaline (a physiological metabolic regulatory hormone in humans), 57 guanine, 58 etc. were present in its aqueous extract.…”

GC-MS analysis and cytotoxic activity of the n-hexane fraction from Curcuma sahuynhensis Škornick. & N.S.Lý leaves collected in Vietnam

“…An integral part of the healthcare system is the inherited traditional practice of using plants as a source of herbal medications. There are many different chemicals found in plants that are utilized in traditional medicine to treat chronic and infectious diseases (3). In addition to chemotherapy drugs, herbal medicines also play a significant role in supporting and treating cancer.…”

Assessment of antioxidant activity and phytochemical screening in leaf extract of Andrographis paniculate (Burm. f.) nees

“…The present study reveals that the antioxidant activity in terms of DPPH scavenging strength was displayed high in methanol extract than in ethanol extract. The high antioxidative capacity of the methanolic extract is due to the higher amount of biologically active substances, such as polyphenols (Manurung & Aryani et al, 2019).…”