Physicochemical Stability of Cold-Pressed Yellow Poppy Seed Oil from Afyonkarahisar during Repeated Frying

Year 2025, Volume: 18 Issue: 4, 405 - 416, 24.12.2025

Sabire Duman

Abstract

In this study, the physicochemical changes in cold-pressed poppy seed oil used during the frying process were investigated. Cold press yields of poppy seeds at different pressing speeds were calculated, ranging between 32% and 41%. The frying process was carried out using potatoes (180 °C for 3–4 minutes, repeated seven times), and detailed physicochemical analyses were performed on the oil after each frying cycle. The results showed that the free fatty acid content of the poppy seed oil ranged from 0.90% to 0.94% before and after frying. Peroxide values were measured between 0.30 and 0.72 meq O₂/kg, while total polar compounds ranged from 9.3% to 11.8%. Fatty acid composition analysis revealed that among 13 identified fatty acids, palmitic acid (7.58–9.10%) was the most abundant saturated fatty acid, whereas linoleic acid (72.60–74.16%) was predominant among unsaturated fatty acids. Additionally, iodine value, color, saponification number, and unsaponifiable matter content of the poppy seed oil were determined after each frying session. Statistically, it was determined that the peroxide value, iodine value, color, saponification number, total polar compounds, and trans fatty acid values of poppy seed oil changed during the frying process. Overall, the findings indicate that cold-pressed poppy seed oil is suitable for repeated use in frying applications.

Keywords

Cold press , Edible oil , Fatty acid composition , Repeated frying , Yellow poppy seed

Afyonkarahisar’dan Soğuk Preslenmiş Sarı Haşhaş Tohumu Yağının Tekrarlanan Kızartma Sırasında Fizikokimyasal Stabilitesi

Abstract

Bu çalışmada, kızartma işleminde kullanılan soğuk pres haşhaş yağına ait fizikokimyasal değişimler incelenmiştir. Farklı presleme hızlarında elde edilen haşhaş tohumlarının soğuk pres verimleri %32 ile %41 arasında hesaplanmıştır. Kızartma işlemi, patates kullanılarak 180°C sıcaklıkta, 3–4 dakika süreyle ve yedi kez tekrarlanarak uygulanmış; her kızartma döngüsünün ardından haşhaş yağı üzerinde detaylı fizikokimyasal analizler gerçekleştirilmiştir. Analiz sonuçlarına göre, haşhaş yağının kızartma öncesi ve sonrası serbest yağ asitliği %0.90–0.94 aralığında belirlenmiştir. Peroksit sayıları 0.30–0.72 meq O₂/kg, toplam polar madde oranları ise %9.3–11.8 arasında ölçülmüştür. Yağ asidi kompozisyonu incelendiğinde, 13 farklı yağ asidi arasında palmitik asidin (%7.58–9.10) doymuş yağ asitleri içinde en yüksek orana sahip olduğu; linoleik asidin ise (%72.60–74.16) doymamış yağ asitleri içinde baskın bileşen olduğu saptanmıştır. Ayrıca her bir kızartma sonucunda haşhaş yağının iyot sayısı, renk, sabunlaşma sayısı, sabunlaşmayan madde miktarı değerleri belirlenmiştir. İstatistiki açıdan kızartma işlemi sırasında haşhaş yağının peroksit sayısı, iyot sayısı, renk, sabunlaşma sayısı, toplam polar madde, trans yağ asiti değerlerinin değiştiği tespit edilmiştir. Elde edilen bulgular, soğuk pres yöntemiyle elde edilen haşhaş yağının kızartma işleminde birden fazla kez güvenle kullanılabileceğini ortaya koymaktadır.

Keywords

Sarı haşhaş tohumu , Soğuk pres. , Tekrarlanan kızartma , Yenilebilir yağ , Yağ Asidi

References

• Abudak, M. (2014). Determination of Fatty Acid Distribution and Some Bioactive Components of Poppy (Papaver Somniferum L.) Seeds of Different Colors. Afyon Kocatepe University, Institute of Natural Sciences, Department of Food Engineering, Afyonkarahisar.
• AOAC. (1984). Official Methods of Analysis of AOAC International, 14th edn. Association of Official Agricultural Chemists, Washington, DC.
• AOAC. (1990). Official Methods of Analysis of AOAC International, 15th edn. Association of Official Analytical Chemists, Washington, DC.
• Atalay, Ç. (2004). Determination of seed and oil properties of some poppy (Papaver somniferum L.) varieties. Master Thesis. Konya: Selcuk University, Institute of Science, Department of Food Engineering.
• Avcı, B. (2015). Effect of deep-frying on the quality parameters of vegetable oils, Master Thesis. İzmir: Izmir Institute of Technology, Department of Food Engineering.
• Azcan, N., Kalender, B.Ö., & Kara, M. (2004). Investigation of turkish poppy seeds and seed oils. Chemistry of Natural Compounds, 40(4): 370-372. https://doi.org/10.1023/B:CONC.0000048250.81843.0a
• Bozan, B., & Temelli, F. (2008). Chemical composition and oxidative stability of flax, safflower and poppy seed and seed oils. Bioresource Technology, 99: 6354-6359. https://doi.org/10.1016/j.biortech.2007.12.009
• Caballero, B., Trugo, L.C., & Finglas, P.M. (2003). Encyclopedia of food sciences and nutrition: Academic, https://doi.org/10.1016/b0-12- 227055-x/09004-0
• Chen, W.A., Chiu, C.P., Cheng, W.C., Hsu, C.K., & Kuo, M.I. (2013). Total polar compounds and acid values of repeatedly used frying oils measured by standard rapid methods. Journal of Food and Drug Analysis, 21(1):58–65. https://doi.org/10.6227/jfda.2013210107
• Cohn, J.S. (2002). Oxidized Fat in The Diet, Postprandial Lipaemia and Cardiovascular Disease. Curr. Opin. Lipidol. 13-24. https://doi.org/10.1097/00041433-200202000- 00004
• Çöl B.G. (2023). Evaluation of Total Polar Materials in Cooking Oils Obtained from Food and Beverage Establishments within Shopping Centers, 3rd International Congress of the Turkish Journal of Agriculture - Food Science and Technology, Online Özet Bildiri, ID:166, Malatya, Türkiye.
• Duman, E. (2008). The effects of reused frying oils on edibility and health in catering industry of Afyonkarahisar province and recyclibility of these oil into turkish economy, M. Sc. Thesis. Afyonkarahisar: Afyon Kocatepe University, Institute of Science, Department of Food Engineering.
• Dündar Emir, D. (2014). Determination of Technological and Functional Properties of Poppy Oils, Defatted Cakes, and Protein Isolates Obtained by Cold Press Method. Çanakkale Onsekiz Mart University, Institute of Natural Sciences, Department of Food Engineering, Çanakkale.
• Dündar Emir, D., Aydeniz, B., & Yılmaz, E. (2015). Effects of roasting and enzyme pretreatment on yield and quality of cold-pressed poppy seed oils. Turk J Agric For, 39: 260-271. https://doi.org/10.3906/tar-1409-34
• Erinç, H., Tekin, A., & Özcan, M.M. (2009). Determination of Fatty Acid, Tocopherol and Phytosterol Contents of the Oils of Various Poppy (Papaver Somniferum L.) Seeds. Grasas y Aceites, 60 (4), 375-381. https://doi.org/10.3989/gya.129508
• Farkas, B.E., Singh, P., & Rurnsey, T.R. (1995). Modelling heat and mass transfer in immersion frying model development. Journal of Food Engineering, 29: 227-248. http://dx.doi.org/10.1016/0260-8774(95)00048-8
• Firestone, D. (1999). Physical and Chemical Characteristics of Oils, Fats and Waxes. AOCS Press, Champaign, USA.
• Gökalp, H.Y., Nas, S., & Ünsal, M. (2001). Bitkisel Yağ Teknolojisi. Pamukkale Üni. Mühendislik Fak. Ders Kitapları Yayın No:005. Denizli.
• Hussain, G. (2023). Neutralization Process & Free Fatty Acids (FFA). ResearchGate.
• ISO-5509. (1978). International Organization For Standardization (ISO) Animal and vegetable fats and oils preperation of methyl esters of fatty acids, ISO, vol 5509. Method ISO, Geneve, pp 1–6.
• Kabutey, A., Herák, D., & Mizera, Č. (2022). Assessment of Quality and Efficiency of Cold-Pressed Oil from Selected Oilseeds. Foods, 12(19), 3636. https://doi.org/10.3390/foods12193636
• Karaefe, B. (1992). Study and evaluation of the composition properties of poppy seed oil. Master Thesis. İstanbul: Istanbul University, Institute of Science.
• Kayahan, M. (2002). Modified Oils and Production Technologies. METU Press (ODTÜ Yayıncılık), 1st Edition, 263 p. Ankara. ISBN: 9757064580, 9789757064589.
• Keller, U., Klaus, E., Hirche, F., & Brandsch, C. (2003). Thermally Oxidized Fats Dietary Increase the Susceptility of Rat LDL to Lipid Peroxidation The Journal of Nutrition, 122, 1075-1079. https://doi.org/10.1093/jn/133.9.2830
• Kodaman, L., Çevik, Ş., Turgut, S. S., & Özkan, G. (2019). The Effect of Cold Pressed Seed Oils Used as Thinner in Oil Paint on Paint Drying Time and Color Properties. ulakbilge, 36, 361– 368. https://doi.org/10.7816/ulakbilge-08-36-02
• Moreira, R.G., Palau, J., & Sin, X. (1995). Simultaneous heat and mass transfer during the deep fat frying of tortilla chips. Journal of Food Process Engineering, 18: 307–320. https://doi.org/10.1111/j.1745-4530.1995.tb00369.x
• Norris, F.A. (1979). Handling, storage and grading of oils and oil-bearing materials. In: Bailey’s Industrial Oil and Fat Products, (vol 1. Swern, D., Ed.). A Wileyİnterscience, New York. pp 404-406.
• Özbek, Z.A., & Ergönül, P.G. (2020). Chapter 19—Cold pressed poppy seed oil. In Cold Pressed Oils; Ramadan, M.F., Ed.; Academic Press: Cambridge, MA, USA, pp. 231–239. https://doi.org/10.1016/B978-0-12-818188-1.00019-0
• Özcan, M., & Atalay, Ç. (2006). Determination of seed and oil properties of some poppy (Papaver somniferum L.) varieties. Grasas y Aceites, 57(2), 169-174. https://doi.org/10.3989/gya.2006.v57.i2.33
• Pomeranz, Y., & Meloan, C.E. (1994). Food analysis: theory and practice, New York, NY, USA: Chapman & Hall Publishing.
• Püskülcü, H. & İkiz, F. (1989). Introduction to statistics. Bornova-Izmir: Bilgehan Press.
• Rahimi, A., Kıralan, M., Arslan, N., Bayrak, A., & Doğramacı, S. (2011). Variation in fatty acid composition of registered poppy (Papaver somniferum L.) seed in Turkey. Academic Food, 9(3), 22-25.
• Rossell, J.B. (2001). Frying: Improving Quality. Woodhead Publishing Limited, Cambridge, 1–355. https://doi.org/10.1201/9781439822951
• Ryan, E., Galvin, K., O’Connor, T.P., Maguire, A.R. (2007). Phytosterol, squalene, tocopheral content and fatty acid profile of selected seeds, grains, and legumes. Plants Food Human Nutrition, 62: 85-91.
• Şengün, İ.Y., Yücel, E., Öztürk, B., & Kılıç, G. (2020). Fatty acid composıtıon, total phenolıc content, antıoxıdant and antımıcrobıal actıvıtıes of varıetıes of poppy (papaver somniforum) seed oıls, Gıda The Journal of Food, 45(5) 954-962. https://doi.org/10.15237/gida.GD20061
• T.C. Presidential Legislation Information System. (2012). Regulatıon on special hygiene rules for solid and liquid oils used in frying, Official Newspaper date: 12.05.2012 Official Newspaper Number: 28290.https://www.mevzuat.gov.tr/mevzuat?Me vzuatNo=16138&MevzuatTur=7&MevzuatTertip=5
• The Turkish Food Codex. (2012). Communiqué on Oils Named after Plants” (Communiqué No: 2012/29); Türkiye. https://www.mevzuat.gov.tr/mevzuat?MevzuatNo=16053&MevzuatTur=9&MevzuatTertip=5