نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانش آموخته کارشناسی ارشد، گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز،ایران

2 استادیار،گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز،ایران

3 استاد،گروه علوم باغبانی، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز،ایران

چکیده

با توجه به اینکه خصوصیات کیفی روغن زیتون تحت تاثیر شرایط محیطی و رقم می باشد. لذا این پژوهش به منظور بررسی برخی از خصوصیات کیفی روغن ارقام طارم 2 و دزفول زیتون به صورت طرح بلوک‌های کامل تصادفی با سه تکرار در دانشگاه شهید چمران اهواز در سال 96-1395 به اجرا درآمد. نتایج نشان داد که روغن استخراج شده از رقم طارم 2 دارای بالاترین ارزش پراکسید (25/9 میلی اکی والان اکسیژن بر کیلوگرم روغن) ، میزان محتوای کلروفیل (10/8 میلی گرم بر کیلوگرم روغن) و کاروتنوئید (16/0 میلی گرم بر کیلوگرم روغن) و ضریب خاموشی K232 (32/2)و K270 (61/0) بود ولی میزان محتوای فنول کل (66/552 میلی گرم بر کیلوگرم روغن) در روغن استخراج شده از میوه رقم دزفولی بیشتر بود. همچنین حداکثر میزان اسید اولئیک (52/58 درصد) و حداقل مقدار اسید پالمتیک (6/17درصد) از روغن رقم طارم2 بدست آمد در حالی که در روغن استخراج شده از رقم دزفولی مقدار اسید لینولئیک (05/18 درصد) حداکثر بود. علاوه براین، نسبت اسید اولیک به اسید لینولئیک در روغن استخراج شده در رقم طارم 2 بیشتر از رقم دزفولی بود لذا با توجه به نتایج این آزمایش می‎توان انتظار داشت که روغن استخراج شده از رقم طارم 2در مقایسه با رقم دزفولی از پایداری اکسیداتیو بالاتری برخودار باشد.

کلیدواژه‌ها

عنوان مقاله [English]

Oil quality evaluation of two olive cultivars ‘Tarom 2’and ‘Dezful’ in Ahvaz condition

نویسندگان [English]

  • Yousef Lotfi 1
  • Esmaeil Khaleghi 2
  • Norollah Moallemi 3

1 Former MSc. Student of Horticultural Science Department, College of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

2 Assistant Professor, Department of Horticultural Science, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran

3 Professor, Department of Horticultural Science, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

چکیده [English]

Given that, the qualitative characteristics of olive oil are influenced by environmental conditions and cultivars. Therefore, this study was carried out to investigate some of the oil qualitative characteristics of Tarom 2 and Dezful cultivars of olive as a randomized complete block design with 3 replications at Shahid Chamran University of Ahvaz during 2016-2017. The results indicated that, the oil extracted from Tarom 2 cultivar exhibited the highest peroxide value (9.25 meq of O2/ kg of oil), chlorophyll content (8.10 mg/kg of oil), and carotenoid (0.16 mg/kg of oil) and K232 and K270 extinction coefficients of 2.32 and 0.61, respectively. However, total phenolic content of the oil extracted from Dezful cultivar (552.66 mg/kg of oil) was higher than that of the other cultivar. In addition, the highest oleic acid content (58.52%) and lowest palmitic acid content (17.6%) were measured on the oil obtained from the Tarom 2 cultivar, while the oil extracted from Dezful cultivar showed the highest linoleic acid content (18.05%). Furthermore, oleic acid-to-linoleic acid ratio was higher in the oil extracted from the Tarom 2 cultivar rather than the one taken from the Dezful cultivar. Therefore, based on the results obtained from the experiment, the oil extracted from Tarom 2 cultivar is expected to exhibit higher oxidative stability than that of the Dezful cultivar.

کلیدواژه‌ها [English]

  • Acidity
  • Carotenoid
  • Chlorophyll
  • Extinction coefficients
  • Fatty acids profile
  • peroxide value
  • Total phenol content
Aguilera, M. P., Beltrán, G., Ortega, D., Fernández, A., Jiménez, A. & Uceda, M. (2005). Characterization of virgin olive oil of Italian olive cultivars: ‘Frantoio’ and ‘Leccino’, grown in Andalusia. Food Chemistry, 89, 387–391. htpps://doi.org/10.1016/j.foodchem.2004.02.046
Allalout, A., Krichène, D., Methenni, K., Taamalli, A., Oueslati, I., Daoud, D. & Mokhtar, Z. (2009). Characterization of virgin olive oil from Super Intensive Spanish and Greek varieties grown in northern Tunisia. Scientia Horticulturae, 120, 77-83.
https://doi.org/10.1016/j.foodchem.2004.02.046
Baiano, A., Terracone, C., Viggiani, I. & Del Nobile, M. A. (2013). Effect of cultivars and location on quality, phenolic content and antioxidant activity of extra-virgin olive oil. Journal of the American Oil Chemists' Society, 90, 103-111. https://doi.org/10.1007/s11746-012-2141-8
 
Ben Rouina, B., Trigui, A. & Boukhris, M. (2000). Effect of the climate and the soil conditions on crops performance of the Chemlali de sfax olive trees. Acta Horticulturae, 586, 285-289.
https://doi.org/10.17660/ActaHortic.2002.586.55
Bešter, E., Butinar, B., Bučar-Miklavčič, M. & Golob, T. (2008). Chemical changes in extra virgin olive oils from Slovenian Istra after thermal treatment. Food Chemistry, 108(2), 446-454. https://doi.org/10.1016/j.foodchem.2007.10.061
Ceratini, L., Bendini, A., Del Caro, A., Piga, A., Vacca, V., Caboni, M. F. & Toschi, F. G. (2006). Preliminary characterization olive oils obtained from different cultivars in Sardinia. European Food Research and Technology, 222, 354-361. https://doi.org/10.1007/s00217-005-0088-9
Cimato, A., Baldini, A. & Moretti, R. (2001). L’olio di oliva. Cultivar, ambiente e tecniche agronomiche. ARSIA, Regione Toscana, Firenze. Spain.
Commission Regulation (EEC). (1991). The characteristics of olive oil and olive-residue oil and relevant methods of analysis. Commission Regulation (EC).124, 1–83. Retrieved from https://eur-lex.europa.eu/legal-content/EN/ALL/?uri=CELEX:31991R2568
Deiana, M., Rosa, A., Cao, C. F., Pirisi, F. M., Bandino, G. & Dessi, M. A. (2002). Novel approach to study oxidative stability of extra virgin olive oils: importance of α-tocopherol concentration. Journal of Agricultural and Food Chemistry, 50, 4342-4346.
https://doi.org/10.1021/jf020033t
Ehteshamnia, A. & Zahedi, B. (2017). Study the Effect of Region on Fruit Fatty Acids of Four Olive Cultivars in the Lorestan Province. Journal of Plant Production Research, 24(2), 93-108. https://doi.org/10.22069/jopp.2017.10426.2001 (In Persian)
Ferruzzi, M. G. & Blakeslee, J. (2007). Digestion, absorption and cancer preventative activity of dietary chlorophyll derivatives. Nutrition Research, 27, 1-12.
https://doi.org/10.1016/j.nutres.2006.12.003
Garcí, J. M., Gutiérrez, F., Castellano, J. M., Perdiguero, S., Morilla, A. & Albi, M. A. (1996). Influence of storage temperature on fruit ripening and olive oil quality. Journal of Agricultural and Food Chemistry, 44, 264-267. https://doi.org/10.1021/jf950399o
Hashempour, A., Fotouhi Ghazvini, R., Bakhshi, D. & Asadi Sanam, S. (2010). Evaluation of virgin olive (Olea europaea L.) oil quality from cultivars, “Zard, Roghani and Mari”, Kazeroon region. Iranian Journal of Horticultural Sciences, 41(1), 47-53. (In Persian)
Hashempour, A., Fotouhi Ghazvini, R., Bakhshi, D. & Asadi Sanam, S. (2010). Fatty acids composition and pigments changing of virgin olive oil (Olea europea L.) in five cultivars grown in Iran. Australian Journal of Crop Science, 4(4), 258-263.
Hernández, M. L., Padilla, M. N., Sicardo, M. D., Mancha, M. & Martínez-Rivas, J. M. (2011). Effect of different environmental stresses on the expression of oleate desaturase genes and fatty acid composition in olive fruit. Phytochemistry, 72, 178-187.
https://doi.org/10.1016/j.phytochem.2010.11.026
Homapour, M., Hamedi, M., Moslehishad, M. & Safafar, H. (2014). Physical and chemical properties of olive oil extracted from olive cultivars grown in Shiraz. Iranian Journal of Nutrition Sciences and Food Technology, 9(1), 111-120. (In Persian)
Horwitz, W., Senze, A., Reynolds, H. & Park, D. L. (1975). Official methods of analysis of the association of anaytical chemists. Washington: Association of Official Analytical Chemists. 162.
Issaoui, M., Flamini, G., Brahmi, F., Dabbou, S., Hassine, K. B. & Taamali, A. (2010). Effect of the growing area conditions on differentiation between Chemlali and Chétoui olive oils. Food Chemistry, 119, 220-225.
https://doi.org/10.1016/j.foodchem.2009.06.012
Kalua, C. M., Allen, M. S., Bedgood, D. R., Bishop, A. G., Prenzler, P. D. & Robards, K. (2007). Olive oil volatile compounds, flavour development and quality: A Critical Review. Food Chemistry, 100, 273-86.
https://doi.org/10.1016/j.foodchem.2005.09.059
Khaleghi, E., Arzani, K., Moallemi, N. & Barzegar, M. (2015). The efficacy of kaolin particle film on oil quality indices of olive trees (Olea europaea L.) cv. ‘Zard’ grown under warm and semi-arid region of Iran. Food Chemistry, 166, 35-41.
https://doi.org/10.1016/j.foodchem.2014.06.006
Kharazi, SH., Kenari, R. E., Amiri, Z. R. & Azizkhani, M. (2012). Characterization of Iranian virgin olive oil from the Roodbar region: A study on Zard, Mari and Phishomi. Journal of the American Oil Chemists' Society, 89(7), 1241-1247.
https://doi.org/10.1007/s11746-012-2021-2
Manai, H., Haddada, F. M., Oueslati, I., Daoud, D. & Zarrouk, M. (2008). Characterization ofmonvarietal Virigin olive oils from six crossing varieties. Scientia Horticulturae, 115, 252-260.
https://doi.org/10.1016/j.scienta.2007.10.011

Metcalf, L. C., Schmitz, A. A. & and Pelka, J. R. (1966). Rapid Preparation of Fatty Acid Esters from lipid for gas chromatography analysis. Analytical Chemistry, 38, 514-515. https://doi.org/10.1021/ac60235a044

Minguez-Mosquera, M. I. & Perez-Galvez, A. (1998). Color quality in paprika oleoresins. Journal of Agricultural and Food Chemistry, 46, 5124-5127.
https://doi.org/10.1021/jf980728n
Mínguez-Mosquera, M. I., Rejano, L., Gandul, B., Sánchez, A. H. & Garrido, J. (1991). Color-pigment correlation in virgin olive oil. The Journal of the American Oil Chemists’ Society, 68, 332-336.
https://doi.org/10.1007/BF02657688
Moyano, M. J., Antonio, J., Melendez-Martinez, J., Alba, J. & Francisco, J. H. (2008). A comprehensive study on the color of virgin olive oils and its relationship with their chlorophylls and carotenoids indexes (I): CIEXYZ non- uniform. Food Research International, 91, 409-418.
https://doi.org/10.1016/j.foodres.2008.03.007
Perrin, J. L. (1992). Les composés mineurs et les antioxgènes naturels de l’olive et de son huile. Revue Franc¸ aise Des Corps Gras. 39: 25–32ical components of Mediterranean diet. Lipids, 34, 523-526.
Psaltopoulou, T., Naska, A., Orfanos, P., Trichopoulos, D., Mountokalakis, T. & Trichopoulou, A. (2004). Olive oil, the Mediterranean diet, and arterial blood pressure: the Greek European Prospective Investigation into Cancer and Nutrition (EPIC) study. The American Journal of Clinical Nutrition, 80 (4), 1012-1018.
https://doi.org/ 10.1093/ajcn/80.4.1012.
Ranalli, A., Contento, S. & Di Simone, G. (2012). Full characterization of virgin olive oils from new olive germplasm. Acta Horticulturae, 949, 77-83.
https://doi.org/10.17660/ActaHortic.2012.949.10
Rotondi, A., Bendini, A., Cerretani, L., Mari, M., Lercker, G. & Gallina-Toschi, T. (2004). Effect of olive ripening degree on the oxidative stability and organoleptic properties of cv. Nostrana di Brisighella extra virgin olive oil. Journal of Agricultural and Food Chemistry, 52, 3649-3654.
https://doi.org/10.1021/jf049845a
Sadeghi, H. & Talaii, A. R. (2002). Impact of environmental conditions on fatty acids combination of olive oil in an Iranian olive, cv. Zard. Acta Horticulturae, 586, 579-582.
Sanchez- Raya, A. J., Gomez, M. & Leal, A. (1981). Ripening criteria in olive fruit. Anales de Edafologia y Agrobiologia, 40, 905-910.
Stefanoudaki, E., Kotsifaki, F. & Koutsaftakis, A. (1999). Classification of virgin olive oils of the two major cretancultivars based on their fatty acid composition. Journal of the American Oil Chemists' Society, 76(5), 623-626.
https://doi.org/10.1007/s11746-999-0013-7
Tous, J. & Romero, A. (1994). Cultivar and location effects on the olive oil quality in Catalonia (Spain). Acta Horticulturae, 356, 323-27.
Viola, P. & Viola, M. (2009). Virgin olive oil as a fundamental nutritional component and skin protector. Clinics Dermatology, 27(2), 159-65. htpps://doi.org/10.1016/j.clindermatol.2008.01.008
Wiesman, Z. (2009). Desert olive oil cultivation. Advanced Bio Technologies. Elsevier’s Science and Technology Rights Department in Oxford, UK.
Yildirim, G. (2009). Effect of storage time on olive oil quality: İZMİR University Press, Turkey.
Young, A. & Britton, G. (1993). Cartenoids in photosynthesis. Chapman and Hall Press, London.
Zeinanloo, A. A., Arji; I., Taslimpour; M., Ramazani Malak Roodi; M. & Azimi, M. (2015). Effect of cultivar and climatic conditions on olive (olea europaea L.) Oil fatty acid composition. Iranian Journal of Horticultural Sciences, 46 (2); 233-242. (In Persian) https://doi.org/ 10.22059/ijhs.2015.54619.