Effect of Solvent on the Phytochemical Extraction and GC-MS Analysis of Gymnema sylvestre

Abstract

Plant sampleG. sylvestre leaves collected during the month of November 2016. The collected plant samples were identified and authenticated by Dr. G.V.S. Murthy, Botanical Survey of India (Ref No: BSI/ SRC/5/23/2016/Tech/215). The leaves were washed with running tap water, distilled water and shade dried at room temperature. The dried leaves were ground by using a laboratory blender. The pulverized samples were stored in cold storage for further usage.

Process optimization to high gymnemic acid content from Gymnema inodorum (Lour.) Decne. leaves

“…This is because the DPPH assay is relatively simple, inexpensive, and fast, and it can be used to test a wide range of samples, including natural extracts, synthetic compounds, and food products 80,81 . Table 3 compares the antioxidant potential of PCD extract powder prepared with 0.5% (w/v) maltodextrin with that of Gymnema extracts by others research 23,82,83 . From the results of present study, it was found that PCD extract powder was able to neutralize 75.8% ± 2.6 of DPPH free radicals at 1.58 mg/mL concentration.…”

“…Although several extraction methods have been described in the literature, solvents-based extraction is the most widely used method where the solvent penetrates the solid matrix solubilizing the solute that diffuses out of the matrix. While some researchers have demonstrated that solvent-based Soxhlet extraction yielded highest gymnemic acids from G. inodorum leaves 16,17 , others have stated that solvent maceration-based extraction was suitable for the recovery of gymnemic acids [18][19][20][21][22][23] . In general, solvent-assisted extraction methods have several advantages over other methods in terms of higher extraction e ciency, selectivity and reduced energy consumption.…”

Squalene Recovery from Uzen Oil Field Wastewater: a Novel Non-Biological Resource Potential

“…Most of the compounds identi ed in Uzen Field wastewater extracts belong to hydrocarbons and their derivatives. Some of these compounds have been previously reported in different medicinal plants and have antioxidant, antibacterial, and anti-in ammatory properties [10][11][12] . Therefore, the compounds identi ed from different extracts of Uzen Field wastewater could be used as a valuable source of antioxidants for the food and pharmaceutical industries.…”

Isolation and extraction of some compounds that act as antimicrobials from actinomycetes

“…Hexadecane, 2,6,11,15-Tetramethyl is one of the compounds that we extracted from isolate D-3, which showed antimicrobial activity. Subramanian et al (2020) has extracted this compound from the Gymnema sylvestre plant, one of the medicinal plants found in the Indian subcontinent and Sri Lanka. This plant is well known for Diabetes mellitus, weight-reducing, against cancer, and anti-bacterial properties.…”