Genetically Modified Crop Oils and Their Properties (Turkish with English Abstract)

Year 2008, Volume: 33 Issue: 4, 175 - 182, 01.08.2008

Şükran Kuleaşan Aziz Tekin Sami Özçelik

Abstract

Nowadays, with the development of genetically engineering in agricultural applications, it is possible to determine the fatty acid composition of crop oils by genetic modifications. The production of vegetable oil throughout the world is about 87 million metric tons. The value of this production is 40 billion US Dollars. Besides their importance in human nutrition, fatty acids from vegetable oils are also used as raw material for soap, detergents, grease, bio-fuels, cosmetics and paint industries. Thus, there is a recent interest on vegetable oils. In addition, the excess amounts of vegetable oil production can be used as an alternative to petroleum.

Keywords

Genetic modification, fatty acid, canola, rapeseed, corn, soybean  

Genetiği Değiştirilmiş Tohum Yağları ve Özellikleri

Abstract

Günümüzde genetik mühendisliğinin tarımsal uygulamalardaki gelişimi sayesinde yağ bitkilerinde genetik modifikasyonlar yapılarak tohum yağının yağ asidi kompozisyonunu belirlemek olanaklı hale gelmiştir. Dünya'da bitkisel yağ üretiminin yaklaşık olarak 87 milyon ton olduğu bildirilmektedir. Bu üretimin ekonomik değeri ise 40 milyar Amerikan Doları'dır. Yağların insan beslenmesindeki öneminin yanı sıra bitkisel yağ asitleri, sabun, deterjan, gres, biyoyakıt, kozmetik ve boya sanayi için de hammadde niteliğindedir. Bu nedenle bitkisel yağlara olan ilgi son yıllarda giderek artmaktadır. Ayrıca bitkisel üretim fazlası yağın, petrole alternatif olarak kullanılabileceği de belirtilmektedir. 

Keywords

Genetik modifikasyon, yağ asidi, kanola, kolza, mısır, soya

References

• Çetiner S. 2004. Tarımsal Biyoteknoloji ve Gıda Güvencesi: Sorunlar ve Öneriler-Modern Biyoteknoloji, Genetiği Değifltirilmifl Organizmalar ve Gıda Güvenliği Konferansı, Gıda Dernekleri Federasyonu, 6 Aralık 2004, İstanbul. http://www.gdf.org.tr/dosyarapor/gdokonferans.pdf
• James C. 2005. Global Status of Commercialized Biotech/GM Crops: 2005. ISAAA Briefs No: 34.
• Anonim. 1999. DPT VIII. Befl Yıllık Kalkınma Planı, 2001-2005. http://plan8.dpt.gov.tr/biyotekn/sunus.htm
• James C. 2001. Global Review of Commercialized Transgenic Crops: 2001. ISAAA Briefs No: 26.
• Anonim. 2004. Tarımsal Transgenik Ürünler ve Dünyadaki Durum. T.C. fieker Kurumu Arafltırma Özeti III. http://www.sekerkurumu.gov.tr/altsayfa/Ar_Ozet/transgenik_misir.html
• Topal fi. 2004. Genetik Değifltirme İfllemleri ve Biyogüvenlik. http://www.bugday.org/article.php?ID=305
• Palmer CE, and Keller WA. 2001. Transgenic Oilseed Brassicas. In Transgenic Plants and Crops, Khachatourians GG, McHugen A, Scurza R, Nip WK and Hui YH (eds), pp. 773-792, Marcel Dekker Inc., New York.
• Knauf VC, and Del Vecchio AJ. 2002. Genetic Engineering of Crops that Produce Vegetable Oil. In Food Lipids: Chemistry Nutrition and Biotechnology, Akoh CC, Min DB (eds), pp. 967-996, Marcel Dekker Inc., New York.
• Thelen JJ, and Ohlrogge JB. 2002. Metabolic Engineering of Fatty Acid Biosynthesis in Plants. Metabolic Engineering, 4: 12-21.
• Jaworski J, and Cahoon EB. 2003. Industrial Oils from Transgenic Plants. Current Opinion in Plant Biology, 6: 178-184.
• Anonim. 2004a. Major Vegetable Oil: World Supply and Distribution. http://www.fas.usda.gov/ffpd/psd/complete_tables/oil-table1-4.htm
• Kayahan M. 2004. Yağlı Tohumlardan Ham Yağ Üretim Teknolojisi-Yağ Üretiminde Yararlanılan Bafllıca Yağlı Tohumlar, pp. 1-28, TMMOB Gıda Mühendisleri Odası, Ankara.
• Stoll C, Lühs W, Zarhloul MK, and Friedt W. 2005. Genetic Modification of Saturated Fatty Acids in Oilseed Rape (Brassicaa napus). Eur. J. Lipid. Sci. Technol., 107: 244-248.
• Neff WE, Mounts TL, and Rinsch WM. 1997. Oxidative Stability as Affected by Triacylglycerol Composition and Structure of Purified Canola Oil Triacylglycerols from Genetically Modified Normal and High Stearic and Lauric Acid Canola Varieties. Lebensm.-Wiss.u.-Technol., 30:793-799.
• Kinney AJ. 1998. Plants as Industrial Chemical Factories-New Oils from Genetically Engineered Soybeans. Fett/Lipid, 100(4-5): 173-176.
• Ohlrogge JB, Mhaske VB, Beisson F, and Ruuska S. 2004. Genomics Approaches to Lipid Biosynthesis. “New directions for a diverse planet”. Proceedings of the 4th International Crop Science Congress, 26 Sep – 1, Brisbane, Australia.
• Burton JW, Wilson RF, Pantalone VR, and Dewey RE. 2002. New Gene Combinations Governing Saturated and Unsaturated Fatty Acid Composition in Soybean. In Lipid Biotechnology, Kuo TM, Gardner HV (eds), pp. 95-113, Marcel Dekker Inc., New York.
• Kayahan M. 2003. Yağ Kimyası-Lipidlerin Canlı Yaflamındaki İfllevleri, pp. 135-164, ODTÜ Yayıncılık, Ankara.
• Kinney AJ. 2002. Perspectives on the Production of Industrial Oils in Genetically Engineered Oilseeds. In Lipid Biotechnology, Kuo TM, Gardner HV (eds), pp. 85-93, Marcel Dekker Inc., New York.
• Dehesh K. 2001. How Can We Genetically Engineer Oilseed Crops to Produce High Levels of Medium-Chain Fatty Acids?. Eur. J. Lipid. Sci. Technol., 103: 688-697.
• Akoh CC. 2002. Structured Lipids. In Food Lipids: Chemistry Nutrition and Biotechnology, Akoh CC, Min DB (eds), pp. 877-908, Marcel Dekker Inc., New York.
• Broun P, Gettner S, and Somerville C. 1999. Genetic Engineering of Plant Lipids. Annu. Rev. Nutr. 19:197–216.
• Kayahan M. 2002. Modifiye Yağlar ve Üretim Teknolojileri-Yağların Modifikasyonuna Ait Temel Bilgiler, pp. 1-17, ODTÜ Yayıncılık, Ankara.
• Hill K. 2000. Fats and Oils as Oleochemical Raw Materials. Pure Appl. Chem., 72(7): 1255-1264.
• Kritchevsky D. 2002. Fats and Oils in Human Health. In Food Lipids: Chemistry Nutrition and Biotechnology, Akoh CC, Min DB (eds), pp. 543-558, Marcel Dekker Inc., New York.
• Venkatramesh M, Karunanandaa B, Sun B, Gunter CA, Boddupalli S, and Kishore GM. 2003. Expression of a Streptomyces3-Hydroxysteroid Oxidase Gene in Oilseeds for Converting Phytosterols to Phytostanols. Phytochemistry, 62:39–46.
• Abbadi A, Domergue F, Meyer A, Riedel K, Sperling P, Zank TK, and Heinz E. 2001. Transgenic Oilseeds as Sustainable Source of Nutritionally Relevant C20 and C22 Polyunsatureted Fatty Acids?. Eur. J. Lipid. Sci. Technol., 103: 106-113.