TY - JOUR AU - Özkılıç, S.Y. AU - Arslan, D. PY - 2022/06/13 Y2 - 2024/03/28 TI - Acidic and enzymatic pre-treatment effects on cold-pressed pumpkin, terebinth and flaxseed oils JF - Grasas y Aceites JA - Grasas aceites VL - 73 IS - 2 SE - Research DO - 10.3989/gya.0324211 UR - https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1934 SP - e462 AB - <p>Oil yield and the properties of oil can be improved with various enzymatic pre-treatments before obtaining oil from oilseeds by cold-press extraction. A commercial mixture of pectolytic enzymes was used in this study. In addition, apple seed meal as a source of β-glucosidase enzyme and citric acid were applied to oilseeds (pumpkin, terebinth and flaxseed) as pre-treatments. The results were evaluated by comparing the effects of the pre-treatments on oil yield and properties. Enzyme preparate could increase the oil yield of pumpkin seeds (~300%) and flaxseed (151%). Significant increases in the phenolic contents of terebinth (from 91.67 to 319.33 mg GAE/kg) and flaxseed oils (from 12.03 to 40.47 mg GAE/kg) were achieved by citric acid and enzymatic pre-treatments. These two pre-treatments were also effective in terms of peroxide formation and oxidative stability in terebinth oil. With the help of the pre-treatments applied to oilseeds it was possible to increase the transition of phenolics from seeds to oil for terebinth oil with increase ratios of 245% for citric acid, 248% for the enzymatic process compared to the control.</p> ER -