A Research about Determination of the Quality of Feed Oils Used as Mixed Feed Raw Material from Some Feed Factories in Konya-Turkey

Feed oil samples which are used as mixed feed raw
material were taken from six different feed factories in March, May
and July. All factories make production in Konya, Turkey and all of
the samples were crude soybean oils. Physical and chemical analyses,
free radical scavenger effect, and total phenol content were
determined on these oil samples. Moisture (M) content was found
between 0.10-22.23%, saponification number (SF) was determined
143.13 to 167.93 KOH/kg, free fatty acidity (FFA) was varied 0.73 to
35.00%, peroxide value (PV) was found between 1.53 and 28.43
meq/kg, unsaponifiable matter (USM) was determined from 0.40 to
17.10%, viscosity (V) was found between 34.30 and 625.67 mPas,
sediment (S) amount was determined between 0.60-18.16%, free
radical scavenger effect (FRSE) was varied 20.7 to 43.04% inhibition
of the extract and total phenol (TPC) content was found between 1.20
and 2.69mg/L extract. Different results were found between months
and factories.





References:
[1] N. Şenköylü, ‘’Yemlik Yağlar (Feed oils), Textbook ISBN 975-93691-1-
7’’, 2001, Trakya University-Tekirdağ, Turkey.
[2] S.J.K.A. Ubhayasekera, P.C. Dutta, ‘’Sterols and sterol oxidation in
feeding obtained from co-and by-products from the food chain in
Europe’’ AOCS, 2008, Annual Meeting-Seattle, Washington-USA.
[3] C. Romero, M. Brenes, P. Garcia, A. Garrido, ‘’Hydroxytyrosol 4-β-Dglucoside,
an important phenolic compound in olive fruits and derived
products’’ 2002, J Agric Food Chem., pp-50: 3835–3839.
[4] Anonymous, ‘’Türk Standartları Enstitüsü (Turkish standards
Institution), Edible Oil Inspection Methods 4th Edition’’ 1973, Turkey.
[5] Anonymous, ‘’IOOC (International Olive Oil Council)’’, 2001.
[6] F.M. Pirisi, P. Cabras, C.F. Cao, M. Migliorini, M. Magelli, ‘’Phenolic
compounds in virgin olive oil. 2. Reappraisal of the extraction, HPLC
separation, and quantification procedures’’, 2000, Journal Agriculture
Food Chemistry, pp-48: 1191-1196.
[7] M. Bonoli, M. Montanucci, T.G. Toschi, G. Lercker, ‘’Fast separation
and determination of tyrosol, hydroxytyrosol and other phenolic
compounds in extra-virgin olive oil by capillary zone electrophoresis
with ultraviolet-diode array detection’’, 2003, Journal Chromatography
A., pp- 1011: 163-172.
[8] M.A. Gyamfi, M. Yonamine, Y. Aniya, ‘’Free radical scavenging action
of medical herbs from Ghane: Thonningia sanguinea on experimentallyinduced
liver injuries’’, 1999, General Pharma, pp- 32(6): 661–667.
[9] O. Düzgüneş, T. Kesici, F. Gürbüz, ‘’İstatistik Metotları (Statistical
Methods) University of Ankara. Agriculture Faculty Textbook Number
861’’, 1984, Ankara-Turkey.
[10] N. Gámez-Meza, J.A. Noriega-Rodríguez, L. A. Medina-Juárez, J.
Ortega-García, R. Cázarez-Casanova, O. Angulo-Guerrero, ‘’Effects of
processing on the oxidative stability of soybean oil produced in
Mexico’’, 1998, Journal of the American Oil Chemists' Society, pp-
75(12): 1729–1733.
[11] S. H. Yoon, H. I. Kim, “Effect of Extraction Solvents on Oxidative
Stability of Crude Soybean Oil”, 1990, Journal of the American Oil
Chemists' Society, pp- 67(3): 165–167.
[12] C. I. Benites, V. O. Cardenas, S. M. P. M. Reis, A. C. Oliveira,
“Physiochemical Characterization of Soybean Oil Deodorizer
Distillate”, 2010, Journal of the American Oil Chemists' Society, pp-88:
267-273.
[13] N. C. Nikolic, S. M. Cakic, S. M. Novakovic, M. D. Cvetkovic, M. Z.
Stankovic, ‘’Effect of extraction techniques on yield and composition of
soybean oil”, 2009, Macedonian Journal Chemistry and Chemical
Engineering, pp-28(2): 173–179.
[14] N. S. Susheelamma, M. R Asha, R. Ravi, V. Kumar, ‘’Comparative
studies on Physical Properties of Vegetable Oils and Their Blends after
Frying’’, 2002, Journal of Food Lipids, pp-9 (4): 259-276.
[15] C. D. Ceballos, L. M. Giacomelli, M. Mattea, ‘’Analysis and
Characterization of Edible Oils by Chemometric Methods’’, 2006,
Journal of the American Oil Chemists' Society, pp-83(4): 303-308.
[16] R. C. Larock, M. D. Refvik, Q. Tion, “Ruthenium-Catalyzed Metothesis
of Vegetable Oils’’, 1999, Journal of the American Oil Chemists’
Society, pp- 76(1): 93–98.
[17] A. Kubaş, I.I. Hakkı, Ö. Azabağaoğlu, “Türkiye’de bitkisel yağ
sektörünün karşılaştığı temel sorunlar’’ 2002, Turkey 1th Oil seed,
Vegetable oils and Technology Symposium, İstanbul-Turkey.
[18] A.S. Bhatnagar, P. K. Kumar, J. Hemavathy, A.G. Krishna, ‘’Fatty Acid
Composition, Oxidative Stability, and Radical Scavenging Activity of Vegetable Oil Blends with Coconut Oil’’, 2009,Journal of the American
Oil Chemists' Society, pp-86: 991-999.
[19] A. Siger, M.N. Kalucka, E. L. Szczapa, ‘’Phenolic Compounds in Cold
Pressed Plant Oils’’ 2008, Journal of Food Lipids, pp-15: 137–149.
[20] V.L. Singleton, J.A. Ross, “Colorimetry of total phenolics with
Phosphomolybdic-phosphotungstic acid reagent’’, 1965, Am. J. Enol.
Vitic.,p-16: 144-58