Exploring Cold Pressing for High-Quality Extra Virgin Oil Production: A Study on Mustard seeds, Sunflower Seeds, and Peanut Seeds

In this study, various methods of oil extraction, such as traditional, solvent-based, and mechanical processes, are explored, with a special emphasis on cold pressing. The traditional method, known for its labor-intensive and inefficient nature, is compared to the more efficient solvent extraction process, which, despite higher costs and environmental concerns, yields more oil. The paper highlights mechanical cold pressing as a viable alternative, as it preserves the nutritional content and quality of the oil. Detailed methodologies for analyzing physicochemical properties of cold-extracted oils are provided, covering aspects like density, water content, boiling point, free fatty acid percentage, saponification value, peroxide value, antibacterial, and antifungal activity by ASTM method. The study presents the results of these analyses for mustard oil, sunflower oil and peanut oil revealing variations in properties. The research concludes that peanut seed oil holds promise for both nutritional and industrial applications, suggesting further exploration of its potential as a substitute for palm oil in various industries. Additionally, the study highlights the production of high-quality extra virgin mustard oil through sustainable and environmentally friendly cold pressing methods, showcasing its unique flavor and aroma, as well as its antioxidant properties that protect cells from damage.