The hazelnut kernel residue obtained after pressing the hazelnuts to extract the hazelnut oil contains about 58 % protein, usually used as a feed ingredient, its high nutritional value also made it a potential ingredient for food applications ( Liu et al., 2018, Sen and Kahveci, 2020 ).
How good is hazelnut kernel oil at 60°C?
Peroxide value, PV (µg/g of active oxygen), and free fatty acid, FFA (mg KOH/g), of hazelnut kernel oil decreased with heating temperature, indicating that the quality of the oil at 60 °C is acceptable for use.
What is the oil point force of hazelnut kernels?
The lower oil point force of 6.21 ± 0.58 kN and the upper oil point force of 10.61 ± 0.71 kN of hazelnut kernels were observed. Based on these values, a maximum force of 60 kN was applied to recover the maximum kernel oil.
Are bulk hazelnut kernels processed postharvest?
Based on the available literature, there is a lack of information on the postharvest processing of bulk hazelnut kernels in relation to processing factors such as speed, heating temperature, and relaxation time.