A Review on Extraction Techniques and Its Future Applications in Industry

Extraction is a mandatory process for most of the industries, especially in the food processing industry to obtain the targeted compounds from various sources such as plant or seed samples. This review paper provides information about various extraction techniques that are normally used in the edible oil extraction industry. Five extraction techniques are presented in this paper. Among all the techniques presented in this paper, pressing and solvent extraction methods are considered as traditional techniques while supercritical fluid extraction, microwave assisted extraction, and ultrasound assisted extractions are considered as advanced techniques. Both advantages and disadvantages of supercritical fluid extraction, microwave assisted and ultrasound assisted extractions are discussed. Furthermore, the parameters that would affect the output of each technique are included in each section. Nowadays, research is going on to further enhance the extraction method to obtain a higher extraction yield or increase the quality of the extraction product. The enhancement can be either combining two or more extraction techniques into one complete process or modifying the available technique alone. Therefore, the theoretical knowledge provided in this review will be useful for future researchers who are interested in enhancing the extraction techniques.

Automated summary

This review paper provides information about various extraction techniques used in the edible oil extraction industry, including both traditional and advanced methods. The advantages and disadvantages of supercritical fluid extraction, microwave assisted extraction, and ultrasound assisted extractions are discussed, along with the parameters that affect the output of each technique. Research is ongoing to enhance extraction methods for higher yield and improved quality of the extraction product.