Commercially, wheatgerm oil (WGO) is extracted using cold-press, Soxhlet extraction and super critical CO2. This paper helps to analyze the standard of wheat germ oil (WGO) extracted using cold press method. Typically, WGO is extracted below 50℃ via cold press and kept in a cool and dry place away from direct sunlight at humidity of <60%. The quality of WGO is carried out using GC-MS, where, extent of purity is measured by quantification of the area at full width at half height in gas chromatography (GC), and the mass spectrometry (MS) confirms the peaks as a function of the molecular weight by the charge, thus signature peaks of that particular molecule is identified and assigned, for example, amount of alcohols like, -tocopherol, -sitosterol, and octacosanol; fatty acids like, linoleic acid, palmitic acid and oleic acid are quantified by GC and confirmed using MS. A domestic cold press unit yield of 8%w/w was achieved in 5 h at 47 ± 2℃, i.e. rate of extraction of 96 g/h or 103.8 mL/h at an operating cost of 210.8 INR/batch of 6 kg. The cold press route is sustainable as it avoids the use of solvents, reducing processing steps and ensuring a pure contamination free oil; contamination-free oil and safe utilization of the waste generated into value added products.

The study successfully demonstrates the extraction of wheat germ oil (WGO) deploying the cold press method, emphasizing its efficiency, sustainability, and alignment with modern industrial requirements. Cold press extraction, conducted at low temperatures below 50°C, preserved the natural bioactive compounds which contains essential fatty acids, tocopherols (vitamin E) and sterols which are integral to the oil’s health benefits and commercial applications. The resulting oil met high-quality standards, as confirmed by GC-MS analysis, and is free from chemical residues, enhancing its suitability for use in personal care, cosmetics, and pharmaceutical products. The experimental setup achieved an 8% weight yield with an extraction rate of 96 g/hour, making the process operationally efficient and cost-effective. Additionally, the cold press method avoided the challenges associated with solvent-based techniques, such as solvent removal, contamination risks, and cost-intensive separation steps. This ensured that the extracted oil retained its natural aroma, nutrients, and antioxidant properties, distinguishing it as a superior product compared to oils derived through conventional methods. Moreover, the study highlights the environmental sustainability of the cold press process. Unlike solvent-based or supercritical CO2 methods, this technique minimizes energy consumption and waste production, adhering to zero-waste manufacturing principles. The residual wheat germ cake, a byproduct of the process, was identified as a valuable resource that can be repurposed into animal feed, soil enhancers, or other useful products. This approach supports circular economy practices while reducing environmental impact. From a broader perspective, the adoption of cold press extraction not only facilitates the production of a high-quality product but also contributes to the economic viability of the industry. The report underscores the potential for cold-pressed WGO to capture global market demand, particularly in the export sector, where solvent-free and nutrient-rich oils are preferred. With demonstrated cost savings and a 30% margin on exports, the method also creates opportunities for local employment and sustainable industrial growth. In conclusion, cold press extraction of wheat germ oil represents an optimal balance between sustainability, economic feasibility, and product quality. This method serves as a model for the integration of traditional knowledge with modern engineering techniques, paving the way for environmentally conscious and economically viable manufacturing practices. Further research and industrial-scale implementation could enhance its efficiency and application scope, contributing to a more sustainable future in oil extraction industries.

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