A review on optimization of process parameters of cold pressed oil extraction for high output and for enhanced quality and retained nutrients

The purpose of this review is to explain cold pressed oil extraction and to analyze process parameters for maximum output, improved quality, and nutrient retention. Nowadays consumers are paying more attention in improving their health and quality of life.With modern lifestyle, human health and well-being are essential aspects of nutrition. When a seed is cold pressed, oil is extracted by applying force to the seed. Lower temperatures have little effect on the oil's characteristics, which include phenolic content, flavor, nutritional value, aroma, and taste. These oils are superior to refined oil in terms of nutritional value. The cold press method of production at low temperatures yields high quality oils. The cold pressed oils are healthier and more nutritionally balanced than refined oils, this process produces high-quality oils at low temperatures, and the process does not involve high heat or chemical processes. Cold press extracted oils primarily aim at their composition, nutritional quality, physicochemical characteristics, food applications, functional, oxidative stability, and health benefits. This review paper summarizes research on various methods of essential oil extraction for various raw materials, aiming to provide stakeholders in seed oil with useful insights for selecting the most suitable extraction methods.