Optimization of oil recovery from oilseed rape by cold pressing using statistical modeling
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Todorović, ZoranMitrović, Petar
Zlatković, Vesna
Grahovac, Nada
Banković-Ilić, Ivana
Troter, Dragan
Marjanović-Jeromela, Ana
Veljković, Vlada
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Cold pressing is frequently used to produce high-quality vegetable oils, especially from seeds with high oil content, such as rapeseeds. But, it encounters a challenge from the industrial demand for high oil yield. Modeling the cold pressing process using experimental and statistical approaches would help to understand the effects of cold pressing conditions on oil yield and process efficacy. Therefore, this work aimed to investigate the effects of nozzle diameter (8–12 mm), screw frequency (40–60 Hz), and press head temperature (40–80 °C) on the oil recovery from rapeseeds by cold pressing using response surface methodology coupled with a 33 full factorial design. An extended quadratic equation fitted the experimental data accurately and reproducibly, as proved by the acceptable coefficient-of-determination (R2 = 0.873), a not significant lack-of-fit (p = 0.872), and a very low mean relative percentage deviation (± 6.7%, 35 data). The ANOVA revealed that nozzle diameter, press head te...mperature, their interaction, three-factor interaction, and squared nozzle diameter influenced pressed oil yield significantly. The optimal condition for obtaining the highest pressed oil yield (26.7%) within the experimental domain was a nozzle diameter of 10 mm, a screw frequency of 50 Hz, and a press head temperature of 80 °C. The crude oil extraction degree achieved by cold pressing was 60.8% compared to the Soxhlet method. The rapeseed oil contains predominantly oleic, linoleic, linolenic, and palmitic acids, agreeing with other reported rapeseed oils.
Keywords:
cold pressing / extraction / mathematical modelling / oil recovery / oilseed rape / optimization / rapeseedSource:
Journal of Food Measurement and Characterization, 2023Publisher:
- Springer Science+Business Media
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200133 (Univeristy of Niš, Faculty of Technology, Leskovac) (RS-MESTD-inst-2020-200133)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200032 (Institute of Field and Vegetable Crops, Novi Sad) (RS-MESTD-inst-2020-200032)
- Serbian Academy of Sciences and Arts (SASA) (Project F-78)
- SASA Branch in Niš (Project 0-14-18)
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FiVeRTY - JOUR AU - Todorović, Zoran AU - Mitrović, Petar AU - Zlatković, Vesna AU - Grahovac, Nada AU - Banković-Ilić, Ivana AU - Troter, Dragan AU - Marjanović-Jeromela, Ana AU - Veljković, Vlada PY - 2023 UR - http://fiver.ifvcns.rs/handle/123456789/3843 AB - Cold pressing is frequently used to produce high-quality vegetable oils, especially from seeds with high oil content, such as rapeseeds. But, it encounters a challenge from the industrial demand for high oil yield. Modeling the cold pressing process using experimental and statistical approaches would help to understand the effects of cold pressing conditions on oil yield and process efficacy. Therefore, this work aimed to investigate the effects of nozzle diameter (8–12 mm), screw frequency (40–60 Hz), and press head temperature (40–80 °C) on the oil recovery from rapeseeds by cold pressing using response surface methodology coupled with a 33 full factorial design. An extended quadratic equation fitted the experimental data accurately and reproducibly, as proved by the acceptable coefficient-of-determination (R2 = 0.873), a not significant lack-of-fit (p = 0.872), and a very low mean relative percentage deviation (± 6.7%, 35 data). The ANOVA revealed that nozzle diameter, press head temperature, their interaction, three-factor interaction, and squared nozzle diameter influenced pressed oil yield significantly. The optimal condition for obtaining the highest pressed oil yield (26.7%) within the experimental domain was a nozzle diameter of 10 mm, a screw frequency of 50 Hz, and a press head temperature of 80 °C. The crude oil extraction degree achieved by cold pressing was 60.8% compared to the Soxhlet method. The rapeseed oil contains predominantly oleic, linoleic, linolenic, and palmitic acids, agreeing with other reported rapeseed oils. PB - Springer Science+Business Media T2 - Journal of Food Measurement and Characterization T1 - Optimization of oil recovery from oilseed rape by cold pressing using statistical modeling DO - 10.1007/s11694-023-02138-6 ER -
@article{ author = "Todorović, Zoran and Mitrović, Petar and Zlatković, Vesna and Grahovac, Nada and Banković-Ilić, Ivana and Troter, Dragan and Marjanović-Jeromela, Ana and Veljković, Vlada", year = "2023", abstract = "Cold pressing is frequently used to produce high-quality vegetable oils, especially from seeds with high oil content, such as rapeseeds. But, it encounters a challenge from the industrial demand for high oil yield. Modeling the cold pressing process using experimental and statistical approaches would help to understand the effects of cold pressing conditions on oil yield and process efficacy. Therefore, this work aimed to investigate the effects of nozzle diameter (8–12 mm), screw frequency (40–60 Hz), and press head temperature (40–80 °C) on the oil recovery from rapeseeds by cold pressing using response surface methodology coupled with a 33 full factorial design. An extended quadratic equation fitted the experimental data accurately and reproducibly, as proved by the acceptable coefficient-of-determination (R2 = 0.873), a not significant lack-of-fit (p = 0.872), and a very low mean relative percentage deviation (± 6.7%, 35 data). The ANOVA revealed that nozzle diameter, press head temperature, their interaction, three-factor interaction, and squared nozzle diameter influenced pressed oil yield significantly. The optimal condition for obtaining the highest pressed oil yield (26.7%) within the experimental domain was a nozzle diameter of 10 mm, a screw frequency of 50 Hz, and a press head temperature of 80 °C. The crude oil extraction degree achieved by cold pressing was 60.8% compared to the Soxhlet method. The rapeseed oil contains predominantly oleic, linoleic, linolenic, and palmitic acids, agreeing with other reported rapeseed oils.", publisher = "Springer Science+Business Media", journal = "Journal of Food Measurement and Characterization", title = "Optimization of oil recovery from oilseed rape by cold pressing using statistical modeling", doi = "10.1007/s11694-023-02138-6" }
Todorović, Z., Mitrović, P., Zlatković, V., Grahovac, N., Banković-Ilić, I., Troter, D., Marjanović-Jeromela, A.,& Veljković, V.. (2023). Optimization of oil recovery from oilseed rape by cold pressing using statistical modeling. in Journal of Food Measurement and Characterization Springer Science+Business Media.. https://doi.org/10.1007/s11694-023-02138-6
Todorović Z, Mitrović P, Zlatković V, Grahovac N, Banković-Ilić I, Troter D, Marjanović-Jeromela A, Veljković V. Optimization of oil recovery from oilseed rape by cold pressing using statistical modeling. in Journal of Food Measurement and Characterization. 2023;. doi:10.1007/s11694-023-02138-6 .
Todorović, Zoran, Mitrović, Petar, Zlatković, Vesna, Grahovac, Nada, Banković-Ilić, Ivana, Troter, Dragan, Marjanović-Jeromela, Ana, Veljković, Vlada, "Optimization of oil recovery from oilseed rape by cold pressing using statistical modeling" in Journal of Food Measurement and Characterization (2023), https://doi.org/10.1007/s11694-023-02138-6 . .