Cold press in oil extraction. A review
Articles > Article · 2018
Authors: Busra Cakaloglu, Vasfiye Hazal Ozyurt, Semih ÖTLEŞ
Ukrainian Food Journal, Journal Indexed in SCI Expanded, International, 2018, vol 7, pp 640-654
DOI: 10.24263/2304-974x-2018-7-4-9
Summary
Introduction.The aim of this review is to explain the working principle of the cold press machine and discuss the effect of the extraction efficiency.The advantages and disadvantages of the extraction by means of cold press were explained by referring to other extraction methods. Material and method.The oil extraction from oilseeds by cold press method investigated for this study.The studies related with cold press were examined and the comparison of cold press with other methods used in oil production from oily seeds was compiled. Results and discussion.Cold press extraction is one of the methods of mechanical extraction as well as required less energy than other oil extraction techniques and also environmental friendly.It is used to extract oil from a range of matrices and is produced especially in the oil production from oilseeds.High-quality oils can be obtained by performing production at low temperatures using cold press method.It has an environmentally friendly use with no solvents.In other words, the cold-press extraction does not involve either heat or chemical extraction.The soybean, sunflower, rapeseed, corn, grapeseed, hemp, flaxseed, rice bran, olive and pumpkin oils were obtained by cold press extraction method.Moreover, these oils are interesting for consumers due to their natural and safe as well as prevent certain diseases and improve human health due to including a higher level of lipophilic phytochemicals such as antioxidants.These oils have better nutritive properties than refined oils.However, they have a lot of advantages, one of the disadvantages of this technique is low productivity.Another disadvantage of this technique is hard to extract same quality product.The cold pressed oils can add to food as natural antioxidative additives due to phytochemicals and as fatty acid supplements due due to invaluabile double bond fatty acid.There are several studies to investigate the other chemical compounds in the oils and try to use in food products. Conclusion.While observing the studies, it was generally focused on cold press extraction.