Walnut and almond oil screw-press extraction at industrial scale: Effects of process parameters on oil yield and quality
DOI:
https://doi.org/10.3989/gya.0554171Keywords:
Almond oil, Chemical quality parameters, Oil recovery, Screw-press extraction, Walnut oilAbstract
Walnut and almond kernels are highly nutritious mainly due to their high oil contents. In this study, 32 factorial experimental designs were used to optimize processes for oil extraction by screw-pressing at industrial scale. Experimental designs included seed moisture content (SMC), and restriction die (RD) as the main processing parameters. Theoretical models were scanned against experimental data in order to optimize oil extraction conditions. The response variables analyzed were oil yield (OY), fine solid content (FC) in oil, and oil quality parameters. Fitted models for OY indicated maximum predicted values similar to the highest experimental values. Walnut oil extractions showed a maximum OY (84.5 ± 2.3 %) at 7.21% SMC, and 10 mm RD. For almond kernels, maximum OY (71.9 ± 3.5%) was obtained at 9.42% SMC, and 12 mm RD. Chemical quality parameters from both oils were in the ranges stated in Codex (FAO/WHO) standards for virgin (non-refined) oils.
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Akinoso R, Raji AO. 2011. Optimization of oil extraction from locust bean using response surface methodology. Eur. J. Lipid Sci. Technol. 113, 245–252. https://doi.org/10.1002/ejlt.201000354
Barrera GN, Tadini CC, León AE, Ribotta PD. 2016. Use of alpha-amylase and amyloglucosidase combinations to minimize the bread quality problems caused by high levels of damaged starch. J. Food Sci. Technol. 53, 3675–3684. https://doi.org/10.1007/s13197-016-2337-2 PMid:28017982 PMCid:PMC5147690
Desobgo ZSC, Stafford RA, Metcalfe DJA. 2015. Dimethyl sulfide stripping behavior during wort boiling using response surface methodology. J. ASBC. 1, 84–89.
Hamm W, Hamilton RJ. 2000. The production of oils in Edible Oil Processing. Sheffield Academic Press, England.
Kodad O, Socias I, Company R. 2008. Variability of oil content and major fatty acid composition in almond (Prunus amygdalus Batsch) and its relationship with kernel quality. J. Agric. Food Chem. 56, 4096–4101. https://doi.org/10.1021/jf8001679 PMid:18461963
Maestri D, Martínez M, Bodoira R, Rossi Y, Oviedo A, Pierantozzi P, Torres M. 2015. Variability in almond oil chemical traits from traditional cultivars and native genetic resources from Argentina. Food Chem. 170, 55- 61. https://doi.org/10.1016/j.foodchem.2014.08.073 PMid:25306317
Martínez ML, Mattea MA, Maestri DM. 2006. Varietal and crop year effects on lipid composition of walnut (Juglans regia) genotypes. J. Am. Oil Chem. Soc. 83, 791–796. https://doi.org/10.1007/s11746-006-5016-z
Martínez ML, Mattea MA, Maestri DM. 2008. Pressing and supercritical carbon dioxide extraction of walnut oil. J. Food Eng. 88, 399–404. https://doi.org/10.1016/j.jfoodeng.2008.02.026
Martınez ML, Labuckas DO, Lamarque AL, Maestri, DM. 2010. Walnut (Juglans regia L.): genetic resources, chemistry and by-products. J. Sci. Food Agric. 90, 1959–1967. https://doi.org/10.1002/jsfa.4059
Martínez ML, Marín MA, Salgado Faller CM, Revol J, Penci MC, Ribotta PD. 2012. Chia (Salvia hispanica L.) oil extraction: study of processing parameters. J. Food Sci. Technol. 47, 78–82. https://doi.org/10.1016/j.lwt.2011.12.032
Martínez ML, Penci MC, Marin MA, Ribotta PD, Maestri DM. 2013. Screw press extraction of almond (Prunus dulcis (Miller) D.A. Webb): Oil recovery and oxidative stability. J. Food Eng. 119, 40–45. https://doi.org/10.1016/j.jfoodeng.2013.05.010
Martínez ML, Bordón MG, Lallana RL, Ribotta PD, Maestri DM. 2017. Optimization of Sesame Oil Extraction by Screw-Pressing at Low Temperature. Food Biop. Technol. 10, 1113–1121. https://doi.org/10.1007/s11947-017-1885-4
Martínez M, Maestri D. 2015. Aceites vegetales no tradicionales "Guía para la producción y evaluación de la calidad". Grupo Editor Encuentro, Córdoba.
Montgomery, DC. 2005. Introduction to factorial designs, in Montgomery DC (Ed.) Design and Analysis of Experiments. John Wiley & Sons Inc., New York, pp. 160–197.
Owolarafe OK, Faborode MO, Obafemi OA. 2002. Comparative evaluation of the digester–screw press and a hand-operated hydraulic press for palm fruit processing. J. Food Eng. 52, 249–255. https://doi.org/10.1016/S0260-8774(01)00112-1
Savoire R, Lanoisellé JL, Vorobiev E. 2013. Mechanical continuous oil expression from oilseeds: a review. Food Biop. Technol. 6, 1–16. https://doi.org/10.1007/s11947-012-0947-x
Singh J, Bargale PC. 1990. Mechanical expression of oil from linseed. J. Oilseeds Res. 7, 106–110.
Singh J, Bargale PC. 2000. Development of a small capacity double stage compression screw press for oil expression. J. Food Eng. 43, 75–82. https://doi.org/10.1016/S0260-8774(99)00134-X
Singh KK, Wiesenborn DP, Tostenson K, Kangas N. 2002. Influence of moisture content and cooking on screw pressing of crambe seed. J. Am. Oil Chem. Soc. 79, 165–170. https://doi.org/10.1007/s11746-002-0452-3
Wiesenborn D, Doddapaneni R, Tostenson K, Kangas N. 2001. Cooking indices to predict screw-press performance for crambe seed. J. Am. Oil Chem. Soc. 78, 467–471. https://doi.org/10.1007/s11746-001-0287-y
Zheng Y, Wiesenborn DP, Tostenson K, Kangas N. 2003. Screw pressing of whole and dehulled flaxseed for organic oil. J. Am. Oil Chem. Soc. 80, 1039–1045. https://doi.org/10.1007/s11746-003-0817-7
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