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Extraction and characterization of essential oil from Neem tree leaves

 Department: Science Technology  
 By: usericon Klintex001  

 Project ID: 8692
   Rating:  (5.0) votes: 1
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   Price:₦3000
Abstract
The increasing global demand for natural and plant-based therapeutic agents has intensified interest in essential oils derived from medicinal plants. This study focuses on the extraction and characterization of essential oil from the leaves of Azadirachta indica (Neem tree), an underexplored yet pharmacologically significant plant component. Utilizing hydrodistillation with two solvents, ethanol and n-hexane, essential oils were extracted and subjected to physicochemical analyses, including density, refractive index, acid value, saponification number, and iodine value. The results revealed that ethanol was a more efficient solvent, yielding oil with a higher density (0.918 g/cm³), greater saponification value (89.16 g/cm³), and a significantly higher iodine value (8.69 g/cm³), indicating a higher concentration of unsaturated and polar compounds. In contrast, n-hexane extracted oil exhibited lower values in these parameters, reflecting its affinity for non-polar and more stable lipid components. The comparative analysis underscores the influence of solvent polarity on the quality and composition of neem essential oil. The findings suggest that ethanol extracted neem oil holds greater promise for pharmaceutical, cosmetic, and antimicrobial applications due to its richer bioactive profile. This study provides a foundational step toward the standardization and industrial application of neem leaf essential oil, offering valuable insights into optimizing extraction techniques for enhanced quality and consistency....
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