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antioxidant activity, hydroxytyrosol, phenolic compounds, table olive, Gemlik
Phenolic compounds, total phenolic content and antioxidant activity of five commercial table olives (Domat, Edremit green, Kalamata, Edremit black and Gemlik) from Turkey were investigated. Quantitative analysis of phenolic compounds was done by high-performance liquid chromatography and 11 compounds were identified in table olives. The major phenolic compounds detected in olive samples were hydroxytyrosol and tyrosol, respectively. In general, Domat type table olive had higher levels of phenolic compounds, while dry salted Gemlik olives were poor in phenolic compounds compared to other table olives. Total phenolic content of the olive samples (wet basis) range between 229.12 and 415.34 mg caffeic acid/100 g. Antioxidant activity of olives (wet basis) was not related to their phenolics content, the latter showing more variation depending on the olive type. Domat olives (10.01 ?mol Trolox equivalents/g) had significantly (P<0.05) higher antioxidant activity than the other table olives.
Amiot, M.J., Fleuriet, A. and Macheix, J.J., 1986. Importance and evolution of phenolic compounds in olive during growth and maturation. Journal of Agricultural and Food Chemistry 34: 823-826.
Arslan, D. and Özcan, M.M., 2011. Phenolic profile and antioxidant activity of olive fruits of Turkish variery ‘Sar?ulak’ from different locations. Grasas Y Aceites 62: 453-461.
Aruoma, O.I., 2003. Methodological considerations for characterizing potential antioxidant actions of bioactive components in plant foods. Mutation Research 523-524: 9-20.
Balasundaram, N., Sundaram, K. and Samman, S., 2006. Phenolic compounds in plants and agri-industrial by-products: antioxidant activity, occurrence and potential uses. Food Chemistry 99: 191-203.
Ben Othman, N., Roblain, D., Chammen, N., Thonart, P. and Hamdi, M., 2009. Antioxidant phenolic compounds loss during the fermentation of Chetoui olives. Food Chemistry 116: 662-669.
Ben Othman, N., Roblain, D., Thonart, P. and Hamdi, M., 2008. Tunisian table olive phenolic compounds and their antioxidant capacity. Journal of Food Science 73: C235-C240.
Blekas, G., Vassilakis, C., Harizanis, C., Tsimidou, M. and Boskou, D.G., 2002. Biophenols in table olives. Journal of Agricultural and Food Chemistry 50: 3688-3692.
Boskou, G., Salta, F.N., Chrysostomou, S., Mylona, A., Chiou, A. and Andrikopoulos, N.K., 2006. Antioxidant capacity and phenolic profile of table olives from Greek market. Food Chemistry 94: 558-564.
Bravo, L., 1998. Polyphenols: chemistry, dietary sources, metabolism, and nutritional significance. Nutrition Reviews 56: 317-333.
Brenes, M., Romero, C., Garcia, P. and Garrido, A., 1995. Effect of pH on the colour formed by Fe-phenolic complex in ripe olives. Journal of the Science of Food and Agriculture 67: 35-41.
Charoenprasert, S. and Mitchell, A., 2012. Factors influencing phenolic compounds in table olives (Olea europaea). Journal of Agricultural and Food Chemistry 60: 7081-7095.
Cicerale, S., Lucas, L. and Keast, R., 2010. Biological activities of phenolic compounds present in virgin olive oil. International Journal of Molecular Sciences 11: 458-479.
Da?delen, A., Tümen, G., Özcan, M.M. and Dündar, E., 2013. Phenolics profiles of olive fruits (Olea europaea L.) and oils from Ayval?k, Domat and Gemlik varieties at different ripening stages. Food Chemistry 136: 41-45.
DeJong, S. and Lanari, M., 2009. Extracts of olive polyphenols improve lipid stability in cooked beef and pork: contribution of individual phenolics to the antioxidant activity of the extract. Food Chemistry 116: 892-897.
Esti, M., Cinquanta, L. and La Notte, E., 1998. Phenolic compounds in different olive varieties. Journal of Agricultural and Food Chemistry 46: 32-35.
Franco, M.N., Galeano-Diaz, T., Lopez, O., Fernandez-Bolanos, J.G., Sanchez, J., De Miguel, C., Gil, M.V. and Martín-Vertedor, D., 2014. Phenolic compounds and antioxidant capacity of virgin olive oil. Food Chemistry 163: 289-298.
Gençer, N., Sinan, S. and Arslan, O., 2009. Antioxidant properties of various olive cultivars. Journal of Applied Biological Sciences 3: 23-27.
Gonzales-Hidalgo, I., Banon, S. and Ros, J.M., 2012. Evaluation of table olive by-product as a source of natural antioxidants. International Journal of Food Science and Technology 47: 674-681.
Gouvinhas, I., Machado, J., Gomes, S., Lopes, J., Martins-Lopes, P. and Barros, A., 2014. Phenolic composition and antioxidant activity of monovarietal and commercial portuguese olive oils. Journal of the American Oil Chemists’ Society 91: 1197-1203.
Hensley, K., Mou, S., Pye, Q.N., Dixon, R.A., Summner, L.W. and Floyd, R.A., 2004. Chemical versus pharmacological actions of nutraceutical phytochemicals: Antioxidant and anti-inflammatory modalities. Current Topics in Nutraceutical Research 2: 13-26.
Huang, W.U., Cai, Z.Y. and Zhang, J., 2010. Natural phenolic compounds from medicinal herbs and dietary plants: potential use for cancer prevention. Nutrition and Cancer 62: 1-20.
Ignat, I., Volf, I. and Popa, V.I., 2011. A critical review of methods for characterisation of polyphenolic compounds in fruits and vegetables. Food Chemistry 126: 1821-1835.
Issaoui, M., Dabbou, S., Mechri, B., Nakbi, A., Chehab, H. and Hammami, M., 2011. Fatty acid profile, sugar composition, and antioxidant compounds of table olives as affected by different treatments. European Food Research and Technology 232: 867-876.
Keceli, T.M., 2013. Influence of time of harvest on ‘Adana Topagi’, ‘Gemlik’ olives, olive oil properties and oxidative stability. Journal of Food and Nutrition Research 1: 52-58.
Kris-Etherton, P.M., Hecker, K.D., Bonanome, A., Coval, S.M., Binkoski, A.E., Hilpert, K.F., Griel, A.E. and Etherton, T.D., 2002. Bioactive compounds in foods: their role in the prevention of cardiovascular disease and cancer. The American Journal of Medicine 113: 71-88.
Lanza, B., Di Serio, M.G. and Iannucci, E., 2013. Effects of maturation and processing technologies on nutritional and sensory qualities of Itrana table. Grasas Y Aceites 64: 272-284.
Malheiro, R., Casal, S., Sousa, A., Guedes de Pinho, P., Peres, A.M., Dias, L.G., Bento, A. and Pereria, J.A., 2012. Effect of cultivar on sensory characteristics, chemical composition, and nutritional value of stoned green table olives. Food and Bioprocess Technology 5: 1733-1742.
Marsilio, V., Campestre, C. and Lanza, B., 2001. Phenolic compounds change during California-style ripe olive processing. Food Chemistry 74: 55-60.
Montano, A. and Casado, F.J., 2005. Influence of processing, storage time, and pasteurization upon the tocopherol and amino acid contents of treated green table olives. European Food Research and Technology 220: 255-260.
Morello, J.R., Romero, M.P. and Motilva, M.J., 2004. Effect of the maturation process of the olive fruit on the phenolic fraction of drupes and oils from Arbequina, Farga, and Morrut cultivars. Journal of Agricultural and Food Chemistry 52: 6002-6009.
Motilva, M.J., Serra, A. and Macia, A., 2013. Analysis of food polyphenols by ultra-high-performance liquid chromatography coupled to mass spectrometry: an overview. Journal of Chromatography A 1292: 66-82.
Owen, R.W., Giacosa, A., Hull, W.E., Haubner, R., Spiegelhalder, B. and Bartsch, H., 2000. The antioxidant/anticancer potential of phenolic compounds isolated from olive oil. European Journal of Cancer 36: 1235-1247.
Pistarino, E., Aliakbarian, B., Casazza, A.A., Paini, M., Cosulich, E.M. and Perego P., 2013. Combined effect of starter culture and temperature on phenolic compounds during fermentation of Taggiasca black olives. Food Chemistry 138: 2043-2049.
Rodriguez, G., Lama, A., Jaramillo, S., Fuentes-Alventosa, J.S., Guillen, R., Jimenez-Araujo, A. Rodriguez-Arcos, R. and Fernandez-Bolanos, J., 2009. Dihydroxyphenylglycol (DHPG): an important phenolic compound present in natural table olives. Journal of Agricultural and Food Chemistry 57: 6298-6304.
Romero, C., Brenes, M., Yousfi, K., Garcia, P., Garcia, A. and Garrido, A., 2004. Effect of cultivar and processing method on the contents of polyphenols in table olives. Journal of Agricultural and Food Chemistry 52: 479-484.
Romero, M.P., Tovar, M.J., Girona, J. and Motilva, M.J., 2002. Changes in the HPLC phenolic profile of virgin olive oil from young trees (Olea europaea L Cv Arbequina) grown under different deficit irrigation strategies. Journal of Agricultural and Food Chemistry 50: 5349-5354.
Ryan, D., Robards, K., Enzier, P. and Antolovich, M., 1999a. Applications of mass spectrometry to plant phenols. Trends in Analytical Chemistry 18: 362-372.
Ryan, D., Robards, K. and Lavee, S., 1999b. Changes in phenolic content of olive during maturation. International Journal of Science and Food Technologhy 34: 265-274.
Sahan, Y., Cansev, A. and Gülen, H., 2013. Effect of processing techniques on antioxidative enzyme activities, antioxidant capacity, phenolic compounds, and fatty acids of table olives. Food Science and Biotechnology 22(3): 613-620.
Sakouhi, F., Herchi, W., Sebei, K., Absalon, C., Kallel, H. and Boukhchina, S., 2011. Accumulation of total lipids, fatty acids and triacylglycerols in developing fruits of Olea europaea L. Science Horticultural-Amsterdam 132: 7-11.
Santos-Buelga, C. and Scalbert, A., 2000. Proanthocyanidins and tannin-like compounds: nature, occurrence, dietary intake and effects on nutrition and health. Journal of the Science of Food and Agriculture 80: 1094-1117.
Schieber, A., Keller, P. and Carle, R., 2001. Determination of phenolic acids and flavonoids of apple and pear by high-performance liquid chromatography. Journal of Chromatography A 910: 265-273.
Servili, M., Baldioli, M., Selvaggini, R., Miniati, E. and Macchioni, A., 1999. High-performance liquid chromatography evaluation of phenols in olive fruit, virgin olive oil, vegetation waters and pomace and 1D- and 2D-nuclear magnetic resonance characterization. Journal of the American Oil Chemists’ Society 76: 873-882.
Sezai, E., 2009. Black table olives from northeastern region of Turkey: The composition and nutritive value. Pharmacognosy Magazine 5: 183-188.
Shahidi, F. and Naczk, M., 1995. Food phenolics: sources, chemistry, effects, applications. Technomic Publishing Company, Lancaster, PA, USA.
Singh, R.P., Chidambara, K.N. and Jayapraksina, G.K., 2002. Studies on the antioxidant activity of pomegrenate peel and seed extracts using in vitro models. Journal of Agricultural and Food Chemistry 50: 81-87.
Sivakumar, G., Bati, C.B. and Uccell, N., 2005. HPLC-MS screening of the antioxidant profile of Italian olive cultivars. Chemistry of Natural Compounds 41: 588-591.
Soufi, O., Romero, C. and Hayette, L., 2014. Ortho-diphenol profile and antioxidant activity of Algerian black olive cultivars: effect of dry salting process. Food Chemistry 157: 504-510.
Therios, I., 2009. Crop production science in horticulture. CABI, Wallingford, UK.
Uylaser, V. and Y?ld?z, G., 2014. The historical development and nutritional importance of olive and olive oil constituted an important part of the Mediterranean diet. Critical Reviews in Food Science and Nutrition 54: 1092-1110.
Vinha, A.F., Ferreres, F., Silva, B.M., Valentao, P., Goncalves, A., Pereira, J.A., Oliveira, M.B., Seabra, R.M. and Andrade, P.B., 2005. Phenolic profiles of Portuguese olive fruits (Olea europaea L.): influences of cultivar and geographical origin. Food Chemistry 89: 561-568.
Visioli, F., Bellomo, G. and Galli, C., 1998. Free radical-scavenging proporties of olive oil polyphenols. Biochemical and Biophysical Research Communications 247: 60-64.
Wong, R.W.K., Hagg, U., Samaranayake, L., Yuen, M.K.C., Seneviratne, C.J. and Kao, R., 2010. Antimicrobial activity of Chinese medicine herbs against common bacteria in oral biofilm – A pilot study. International Journal of Oral and Maxillofacial Surgery 39: 599-605.