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Microwave-assisted extraction of moringa oleifera leaves with the presence of ethanol / Nur Ayuni Najihah Binti Muktar

By:

Nur Ayuni Najihah Binti Muktar [author.]

Material type: Text

text

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unmediated

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volume

ISBN:

THE0010626 (Local)

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Dissertation note: Final Year Report (Bachelor of Chemical Engineering ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2024 Abstract: 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.

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Holdings
Item type	Current library	Call number	Status	Date due	Barcode
Final Year Report	UMPLIB GAMBANG	FTKKP .A98 2024 r Bc. (Browse shelf(Opens below))	Not for loan		T000004167

Faculty of Chemical and Process Engineering Technology

Final Year Report (Bachelor of Chemical Engineering ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2024

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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.