Extraction of Hazelnut Oil and its Application in Food Product Development

In the hazelnut oil production, it is very important to find an appropriate method to recover the oil from kernels/ endosperm. Many researchers have shown that techniques such as microwave-assisted extraction, ultrasound-assisted extraction, pressurized liquid extraction, and supercritical fluid extraction developed for extraction of valuable components from plants and seed materials have been successfully used to effectively reduce the major short-comings of the traditional method. These include shorter extraction time, increase in yield of extracted components, decrease in solvent con-sumption, and improvement of the quality of extracts. This research presents a detailed description of the principles and mechanisms of the various extraction techniques for better understanding and summarizes the potential of these techniques in the extraction of oil from the hazelnut seed. A comparison of the performance of four methods of extraction i,e (a) solvent extraction by using n-hexane method b) solvents extraction by using acetone as an organic solvents and (c) water distillation method and d) cold press method are detailed here. If the amount of recoverable oil from solvent extraction of the mashes is large and produce good quality, then hazelnut oil can be sold in the marketplace and use in various food product development .Hazelnut oil is widely used in pharmaceutical Industry and can also replace in normal cooking oil due to its rich in vitamin E and has peculiar taste and aroma.