Extraction and Comparison of Essential Oil From Neem Seed by Using Soxhlet Extraction and Simple Distillation Methods

Abstract

Extraction of essential neem oil from neem seed were carried by soxhelt extraction and simple distillation method using different types of solvents and parameters. Physico-chemical characteristics of the extracted oil were also determined by using classical wet chemical method. Results were generated in both techniques. Soxhlet extraction using hexane has 40.35%, using ethanol-hexane mixture of 60:40% volume proportions have 43.71%, using ethanol 42.65% and using methanol 42.89%. In simple distillation method results reveal that using hexane 42.35%, in methanol 39.5%, using ethanol 40.72% and using ethanol-hexane mixture of 60:40% has 41.26 %. For all solvent type particle size has 355μm, extraction time 1hr up to 3hrs and applied constant and varies temperatures. At smaller extraction time, hexane produced oil yield greater than from ethanol and methanol. In soxhlet extraction, ethanol not produced oil at one-hour extraction time. Thus, by effective determination of factors like particle sizes, solvent type, temperature, and time it is possible to investigate the result on the quality and quantity of neem oil.

Assessment of Physicochemical and Fatty Acids Composition of Crude Seed Oil Extract of Azadirachta indica Adr. Juss. for its potential in Biodiesel Production

“…The dried almonds were weighed, pulverized with mortar and pestle, at temperatures between 45-47°C to dryness and liquefied to ease extraction. (Tesfaye et al, 2018;Banik et al, 2018). The oil was extracted by traditional methods by pouring the toasted kernels into hot water in a mortar and allowed to float, followed by stirring, using a pestle then decantation and drying (Abu-Al-Futuh,1989;Hamadou et al, 2020) (Figure 1).…”

Neem's Bioactive Marvels: A Therapeutic Review

“…In Ayurveda, Neem is termed "Arishtha," which translates to "sickness relief." The entire neem tree, including its leaves, bark, flowers, fruits, seeds (seed oil), and roots, has shown promising results in wastewater treatment and has long been employed in Ayurvedic, Unani, and homeopathic medicines (3,4,5,6,7). Over 80 percent of the population in underdeveloped countries relies on herbal remedies for treating various ailments (8), with Neem being used to treat conditions such as coughs (9).…”

Turbidity removal through the application of powdered azadirachta indica (neem) seeds

“…Neem (Azadirachta indica), a tree belonging to the mahogany family, is a medicinal plant that receives attention for its use in various applications [19]. All the parts of the neem tree, including the leaves [20][21][22], bark, flowers, fruits, seeds (and seed oil), and roots [23,24], have shown promising results in water and wastewater treatment, as well as Ayurvedic, Unani and homeopathic medicines [25].…”