Effect of Drying Operating Conditions on Canola Oil Tocopherol Content
Abstract
:1. Introduction
2. Experimental Section
2.1. Sample Characterization
2.2. Oil Characterization
2.2.1. Fatty Acid Composition
2.2.2. Physico-Chemical Parameters
2.2.3. Tocopherol Concentration
2.3. Drying Assays
2.4. Statistical Analysis
3. Results and Discussion
3.1. Sample Characterization
Determination (% db) | Canola |
---|---|
Moisture | 8.1 ± 0.1 |
Oil | 45.2 ± 0.9 |
Protein | 18.7 ± 0.6 |
Crude fiber | 20.3 ± 0.5 |
Ash | 3.7 ± 0.1 |
3.2. Drying Assays
3.2.1. General Oil Characterization
W | T | C16:0 | C18:0 | C18:1 | C18:2 | C18:3 | AV | PV |
---|---|---|---|---|---|---|---|---|
(% db) | (°C) | (%) | (%) | (%) | (%) | (%) | ||
13.6 | 35 | 4.13 | 1.74 | 72.35 | 15.14 | 6.64 | 0.50 | ND |
13.6 | 100 | 4.25 | 1.86 | 72.26 | 15.16 | 6.47 | 0.51 | ND |
22.7 | 35 | 4.27 | 1.86 | 72.11 | 15.15 | 6.61 | 0.49 | ND |
22.7 | 100 | 4.33 | 1.73 | 72.13 | 15.19 | 6.63 | 0.51 | ND |
3.2.2. Tocopherols
4. Conclusions
Acknowledgments
Conflicts of Interest
References
- Szydlowska-Czerniak, A.; Karlovits, G.; Hellner, G.; Dianoczki, C.; Szlyk, E. Effect of enzymatic and hydrothermal treatments of rapeseeds on quality of the pressed rapeseed oils. Part I: Antioxidant capacity and antioxidant content. Process Biochem. 2010, 45, 7–17. [Google Scholar] [CrossRef]
- Richards, A.; Wijesundera, C.; Salisbury, P. Genotype and growing environment effects on the tocopherols and fatty acids of Brassica napus and B. juncea. J. Am. Oil Chem. Soc. 2008, 85, 159–168. [Google Scholar] [CrossRef]
- Pereira, E.; Barros, L.; Ferreira, I.C.F.R. Relevance of the mention of antioxidant properties in yogurt labels: In vitro evaluation and chromatographic analysis. Antioxidants 2013, 2, 62–76. [Google Scholar] [CrossRef]
- Kamal-Eldin, A.; Appelqvist, L. The chemistry and antioxidant properties of tocopherols and tocotrienols. Lipids 1996, 31, 671–701. [Google Scholar] [CrossRef]
- Banks, H.J. Effect of Storage Conditions on Quality Change in Canola. In Stored Grain in Australia; Banks, H.J., Wright, E.J., Damcevski, K.A., Eds.; Canberra, Australia, 1998; pp. 267–271. [Google Scholar]
- Fornal, J.; Sadowska, J.; Jaroch, R.; Kaczyñska, B.; Winnicki, T. Effect of drying of rapeseeds on their mechanical properties and technological usability. Int. Agrophys. 1994, 8, 215–224. [Google Scholar]
- Sadowska, J.; Fornal, J.; Ostaszyk, A.; Winnicki, T. Evaluation of technological quality of rapeseeds dried in industrial driers. Zesz. Probl. Postep. Nauk Rol. 1995, 427, 127–135. [Google Scholar]
- Pathak, P.K.; Agrawal, Y.C.; Singh, B.P.N. Effect of elevated drying temperature on rapeseed oil quality. J. Am. Oil Chem. Soc. 1991, 68, 580–582. [Google Scholar] [CrossRef]
- McKnight, K.E.; Moysey, E.B. The effect of temperature and air flow rate on the quality of dried rapeseed. Trans. ASAE 1973, 16, 814–816. [Google Scholar] [CrossRef]
- Sutherland, J.W.; Ghaly, T.F. Heated-air drying of oilseeds. J. Stored Prod. Res. 1982, 18, 43–54. [Google Scholar] [CrossRef]
- Ghaly, T.F.; Sutherland, J.W. Quality aspects of heated air drying of soybeans. J. Stored Prod. Res. 1983, 19, 31–41. [Google Scholar] [CrossRef]
- Capitani, M.; Mateo, C.M.; Nolasco, S.M. Effect of temperature and storage time of wheat germ on the oil tocopherol concentration. Braz. J. Chem. Eng. 2011, 28, 243–250. [Google Scholar] [CrossRef]
- Chu, Y.H. Effect of soybean pretreatments on crude oil quality. J. Am. Oil Chem. Soc. 1995, 72, 177–181. [Google Scholar] [CrossRef]
- IUPAC. Standard Methods for the Analysis of Oils, Fats and Derivatives, 7th ed.; Paquot, C., Hautfenne, A., Eds.; International Union of Pure and Applied Chemistry, Blackwell Scientific: Oxford, UK, 1992. [Google Scholar]
- AOCS. Official Methods and Recommended Practices of the American Oil Chemists’ Society, 4th ed.; Firestone, D., Ed.; AOCS Press: Champaign, IL, USA, 1993. [Google Scholar]
- Izquierdo, N.G.; Aguirrezábal, L.A.N.; Andrade, F.H.; Pereyra, V.R. Night temperature affects fatty acid composition in sunflower oil depending on the hybrid and the phenological stage. Field Crops Res. 2002, 77, 115–126. [Google Scholar] [CrossRef]
- Di Rienzo, J.A.; Casanoves, F.; Balzarini, M.G.; Gonzalez, L.; Tablada, M.; Robledo, C.W. InfoStat Versión 2011. Grupo InfoStat, FCA, Universidad Nacional de Córdoba: Argentina. Available online: http://www.infostat.com.ar (accessed on 28 February 2014).
- Padley, F.B.; Gunstone, F.D.; Harwood, J.L. Occurrence and Characteristics of Oils and Fats. In The Lipid Handbook, 2nd ed.; Gunstone, F.D., Harwood, J.L., Padley, F.B., Eds.; Chapman & Hall: London, UK, 1994; p. 89. [Google Scholar]
- Thakor, N.; Sokhansanj, S.; Mc Gregor, I.; Mc Curdy, S. Dehulling of canola by hydrothermal treatments. J. Am. Oil Chem. Soc. 1995, 72, 597–602. [Google Scholar] [CrossRef]
- Daun, J.K.; Cooke, L.A.; Clear, R.M. Quality, morphology and storability of canola and rapeseed harvested after overwintering in Northern Alberta. J. Am. Oil Chem. Soc. 1986, 63, 1333–1340. [Google Scholar] [CrossRef]
- François, G.; Nathalie, B.; Jean-Pierre, V.; Daniel, P.; Didier, M. Effect of roasting on tocopherols of gourd seeds (Cucurbita pepo). Grasas Aceites 2006, 57, 409–414. [Google Scholar]
- Prior, E.M.; Vadke, V.S.; Sosulski, F.W. Effect of heat treatments on canola press oils. II. Oxidative stability. J. Am. Oil Chem. Soc. 1991, 68, 407–411. [Google Scholar] [CrossRef]
- Miranda, M.; Vega-Gálvez, A.; López, J.; Parada, G.; Sanders, M.; Aranda, M.; Uribe, E.; di Scala, K. Impact of air-drying temperature on nutritional properties, total phenolic content and antioxidant capacity of quinoa seeds (Chenopodium quinoa Willd.). Ind. Crops Prod. 2010, 32, 258–263. [Google Scholar] [CrossRef]
- Bruscatto, M.H.; Zambiazi, R.C.; Sganzerla, M.; Pestana, V.R.; Otero, D.; Lima, R.; Paiva, F. Degradation of tocopherols in rice bran oil submitted to heating at different temperatures. J. Chromatogr. Sci. 2009, 47, 762–765. [Google Scholar] [CrossRef]
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Laoretani, D.; Fernández, M.; Crapiste, G.; Nolasco, S. Effect of Drying Operating Conditions on Canola Oil Tocopherol Content. Antioxidants 2014, 3, 190-199. https://doi.org/10.3390/antiox3020190
Laoretani D, Fernández M, Crapiste G, Nolasco S. Effect of Drying Operating Conditions on Canola Oil Tocopherol Content. Antioxidants. 2014; 3(2):190-199. https://doi.org/10.3390/antiox3020190
Chicago/Turabian StyleLaoretani, Daniela, María Fernández, Guillermo Crapiste, and Susana Nolasco. 2014. "Effect of Drying Operating Conditions on Canola Oil Tocopherol Content" Antioxidants 3, no. 2: 190-199. https://doi.org/10.3390/antiox3020190
APA StyleLaoretani, D., Fernández, M., Crapiste, G., & Nolasco, S. (2014). Effect of Drying Operating Conditions on Canola Oil Tocopherol Content. Antioxidants, 3(2), 190-199. https://doi.org/10.3390/antiox3020190