نوع مقاله : مقاله پژوهشی

نویسنده

عضو هیأت علمی مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی

چکیده

در این پژوهش عصارة هستة انار با شش حلال با درجات مختلف قطبیت استخراج شد.  بازده استخراج، ظرفیت
آنتی­اکسیدانی و احیاکنندگی، توانایی به دام انداختن رادیکال‌های آزاد، ارزیابی تأثیر آن بر مقاومت حرارتی و شرایط اکسیداسیون روغن بدون آنتی­اکسیدان سویا به­عنوان یک سیستم مدل غذایی به­صورت آزمایش فاکتوریل و در قالب طرح کاملا تصادفی با سه تکرار آنالیز شد.  بررسی راندمان عصاره‌گیری نشان می­دهد که حلال‌های هگزان و استون به­ترتیب بالاترین راندمان استخراج را از هسته و کنجاله هسته انار دارند.  نتایج بررسی قدرت آنتی‌اکسیدانی احیای یون‌های آهن
سه ظرفیتی و همچنین فعالیت به دام انداختن رادیکال‌های آزاد عصاره‌ها، نشان می­دهد که عصارة متانولی هستة انار دارای بالاترین قدرت آنتی‌اکسیدانی و آنتی‌رادیکالی در بین سایر عصاره‌ها است.  ارزیابی پایداری اکسایشی عصاره‌های استخراجی به روش رنسیمت نشان می­دهد که عصارة متانولی هستة انار به‌صورت معنی­داری پایداری اکسایشی نمونه شاهد را افزایش می­دهد. 

عنوان مقاله [English]

Antioxidant and Antiradical Properties of Pomegranate Seed Extract (Punica granatum L.)

چکیده [English]

The effect of 6 solvents with different polarities on the extraction of pomegranate seed extracts was studied. Extraction efficiency, reducing activity, radical scavenging properties and the effect of each extract on thermal resistance (oxidative stability index) of antioxidant-free soybean oil were analyzed using a factorial test in a completely randomized design with 3 replications. The results showed that the highest extraction yield from pomegranate seeds was hexane extract and from defatted seeds was acetone extract. The antioxidant properties of the different extracts were analyzed using FRAP and DPPH and revealed that methanol seed extract had the highest antioxidant properties. The antioxidant efficiency of the seed extracts prepared using solvents in combination with antioxidant-free soybean oil was measured using a Rancimat. The results showed that methanol seed extract increased the oxidative stability of the oil sample.

کلیدواژه‌ها [English]

  • Antioxidant Properties
  • Pomegranate seed
  • Radical scavenging property
  • RANCIMAT
  • Reducing activity
Anon. 1993. Official Methods and Recommended Practices of the American Oil Chemists Society. 4th Ed. American Oil Chemists' Society. AOCS Press.
Anon. 2005. Official Methods of Analysis of the Association of the Official Analytical Chemists. Association of Official Analytical Chemists. AOAC Pub.
Aviram, M., Rosenblat, M., Gaitini, D. and Nitecki, S. 2004. Pomegranate juice consumption for 3 years by patients with carotid artery stenosis reduces common carotid intima-media thickness, blood pressure and LDL oxidation. Clin. Nutr. 23(3): 423-433.
Capannesi, C., Palchetti, I., Mascini, M. and Parenti, A. 2000. Electrochemical sensor and biosensor for polyphenols detection in olive oils. Food Chem. 71(4): 553-562.
Farhoosh, R. 2007. The effect of operational parameters of the Rancimat method on the determination of the oxidative stability measures and shelf-life prediction of Soybean oil. J. Am. Oil Chem. Soc. 84(3): 205-209.
Gil, M. I., Tomas-Barberan, F. A., Hess-Pierce, B., Holcroft, D. M. and Kader, A. A. 2000. Antioxidant activity of pomegranate juice and its relationship with phenolic composition and processing. J. Agric. Food Chem.
48, 4581-4589.
Hernandez, P., Melgarejo, J., Olias, M. and Artes, F. 1998. Fatty acid composition and total lipid content of seed oil from three commercial pomegranate cultivars. Proceedings of the Symposium on Production, Processing and Marketing of Pomegranate in the Mediterranean Region: Advances in Research and Technology. Oct. 15-17. Orihuela. Spain. 205-209.
Jayaprakasha, G. K. 2003. Antibacterial and antioxidant activities of grape (Vitis vinifera) seed extracts. Food Res. Int. 36, 117-122.
Kallithraka, S., Viguera, C. G. and Bakker, J. 1995. Survey of Solvents for the extraction of grape seed phenolics. Phytochem. Analysis. 6, 265-267.
Khan, N., Afaq, F., Kweon, M. H., Kim, K. and Mukhtar, H. 2007. Consumption of pomegranate fruit extract inhibits growth and progression of primary lung tumors in mice. Cancer Res. 67(7): 3475-3482.
Kohno, M., Iwabuchi, M., Koba, K. and Imamura, J. 2004. Production of an isomer of conjugated linolenic acid, punicic acid, in rapeseed and rice. Proceedings of the 16th International Plant Lipid Symposium. June 1-4. Budapest. Hungary. 166-168.
Molero Gbmez, A., Pereyra Lopez, C. and Martinez de la Ossa, E. 1996. Recovery of grape seed oil by liquid and supercritical carbon dioxide extraction: a comparison with conventional solvent extraction. Chem. Eng. Biochem. Eng. 61(3): 227-231.
Ozgen, M., Durgac, C., Serce, S. and Kaya, C. 2008. Chemical and antioxidant properties of pomegranate cultivars grown in the Mediterranean region of Turkey. Food Chem. 111, 703-706.
Pekic, B. and Kovac, V. 1997. Study of the extraction of Proanthocyanidins from grape seeds. Food Chem.
61, 201-206.
Sadeghi, N., Jannat, B., Oveisi, M. R., Hajimahmoodi, M. and Photovat, M. 2009. Antioxidant activity of Iranian pomegranate (Punica granatum L.) seed extracts. J. Agric. Sci. Technol. 11(5): 633-638.
Saha, S. S. and Ghosh, M. 2009. Comparative study of antioxidant activity of [alpha]-eleostearic acid and punicic acid against oxidative stress generated by sodium arsenite. Food Chem. Toxicol. 47(10): 2551-2556.
Seeram, N. P. 2005. In vitro antiproliferative, apoptotic and antioxidant activities of punicalagin, ellagic acid and a total pomegranate tannin extract are enhanced in combination with other polyphenols as found in pomegranate juice. J. Nutr. Biochem. 16(6): 360-367.
Shantha, N. C. and Decker, E. A. 1994. Rapid, sensitive, iron-based spectrophotometric methods for determination of peroxide values of food lipids. J. AOAC Int. 77(2): 421-424.
Singh, R. P., Chidambara Murthy, K. N. and Jayaprakasha, G. K. 2002. Studies on the antioxidant activity
of pomegranate (Punica granatum) peel and seed extracts using in vitro models. J. Agric. Food Chem. 50 (1):
81-86.
Escribano-Bail, M. T. and Satos-Buelga, C. 2003. Polyphenol Extraction from Foods. In: Williamson, G. and Santos-Buelga, C. (Eds.) Methods in Polyphenol Analysis. Royal Society of Chemistry Pub. Cambridge. United Kingdom.
Wang, Zh., Pan, Zh., Ma, H. and Atungulu, G. 2011. Extraction of phenolics, proanthocyanidins and flavonoids from peel of pomegranate Marc. Open Food Sci. J. 5, 17-25.
Yemis, O., Bakkalbasi, E. and Artik, N. 2007. Antioxidative activities of grape (Vitis vinifera) seed extracts obtained from different varieties grown in Turkey. Int. J. Food Sci. Technol. 43(1): 154-159.