03056ntm a2200349 i 4500 MY-KuUP 20260624100051.0 t|||||r|||| 000 0 ta 260624t20242024my a|||fr|||| 000 0 eng d THE0010626 (Local) Hardback UMPSA eng UMPSA rda FTKKP .A98 2024 r Bc. Nur Ayuni Najihah Binti Muktar, author. Microwave-assisted extraction of moringa oleifera leaves with the presence of ethanol / Nur Ayuni Najihah Binti Muktar Kuantan, Pahang : UMPSA, 2024 © 2024 xv, 51 pages : illustrations ; rdacontent text rdamedia unmediated rdacarrier volume rda text file PDF Faculty of Chemical and Process Engineering Technology Final Year Report (Bachelor of Chemical Engineering ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2024 Include bibliographical reference Moringa oleifera leaves also known as Remungai leaves, are widely utilized in culinary and industrial applications. They are rich in phenolic compounds, with a quercetin amount of 43.74 % which holds significant health benefits. In line with the World Health Organization’s acknowledgement of human interest in the uses of herb plants, this study explores Microwave-Assisted Extraction (MAE) of Moringa oleifera leaves with ethanol as co-solvent, contributing to the refinement of extraction processes for potential medicinal applications. The aim of this work is to extract phenolic compounds from Moringa oleifera leaves using MAE with ethanol as a co-solvent. The effects of different concentrations of ethanol (0, 20, 40, 60, and 80 wt.%) and microwave temperatures (30, 35, 40, 45 and 50 ℃) towards the extraction yield were investigated by analysing the phenolic compounds and antioxidant activity. The antioxidant activity and phenolic compound were analysed by using a UV-Vis Spectrophotometer. The extraction yield of quercetin at optimum ethanol concentration and the temperature was determined using high-performance liquid chromatography (HPLC). The best result shows the amount of total phenolic compound of 123.05 ± 0.030 mg GAE/g, an antioxidant activity of 75.62 ± 0.043 % and 39.35 %w/w yield of quercetin in Moringa oleifera leaves extract was obtained at 40 wt.% ethanol concentration and temperature of 45 ℃. The collected data revealed a significant quercetin yield of 39.35 wt.%, surpassing results from previous studies. Thus, this study proved that MAE with the presence of ethanol as a co-solvent is an efficient solution to extract phenolic compounds in Moringa oleifera leaves for further industrial applications. Faculty of Chemical and Process Engineering Technology Dissertations Universities and colleges Dissertations Theses Dissertations https://umpir.ump.edu.my/id/eprint/47083 lcc PSM 0 0 lcc 0 0 10000 10000 2026-06-24 0 FTKKP .A98 2024 r Bc. T000004167 2026-06-24 10:03:50 2026-06-24 PSM 105026 105032