Extraction of oil from tiger nut (Cyperus esculentus L.) with supercritical carbon dioxide (SC-CO2)

Lasekan, Ola; Abdulkarim, S. M.

doi:10.1016/j.lwt.2012.01.021

Cited by 49 publications

(30 citation statements)

References 20 publications

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“…The increase in the shear rate entails the approximation of the particles, resulting in an increase in the resistance of the moment flow and the viscosity decreased with an increase in temperature. Similar results are reported for corn, canola, sunflower oils (ToroVazquez and Infante-Guerrero, 1993), chia seed oil (Ixtaina et al, 2010) and tiger nut oil (Lasekan and Abdulkarim, 2012). The effect of temperature on the viscosity of passion fruit oil was estimated as the Arrhenius-type relationship.…”

Section: Rheological Behaviorsupporting

confidence: 79%

Extraction of passion fruit seed oil using supercritical CO<sub>2</sub>: a study of mass transfer and rheological property by Bayesian inference

et al. 2013

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SUMMARYExtraction of passion fruit seed oil using supercritical CO 2 : a study of mass transfer and rheological property by Bayesian inferenceThe extraction of oil from passion fruit seeds using supercritical CO 2 was studied. Experimental data were obtained for extraction conducted at 15, 20 and 25 MPa; at temperatures of 40 and 50 °C with CO 2 flow rates of 1.5 and 3.0 mL min -1 . An increase in the pressure, temperature and CO 2 flow rate increased the yield. The maximum extraction yield obtained was 18.5%. The mass transfer coefficients for passion fruit oil were found to be 8.496 3 10-5 s-1 at 25 MPa, 50 °C and 3 mL s -1 CO 2 flow rate. Dilatant fluid behavior was observed in all tests of the rheological study. KEY-WORDS:Bayesian inference -Passion fruit -Seed oil -Supercritical CO 2 .

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Section: Rheological Behaviorsupporting

confidence: 79%

Extraction of passion fruit seed oil using supercritical CO<sub>2</sub>: a study of mass transfer and rheological property by Bayesian inference

et al. 2013

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“…The contents reported in the Spanish and Egyptian tiger nut samples are quite in accordance to the profile obtained by Sánchez-Zapata et al (2012a), while the profile observed in the Nigerian and South African samples was different. Concerning Nigerian samples, the low values of C 18:1 recorded are higher than those reported by Eteshola and Oraedu (1996) and lower than those reported by Laseka and Abdulkarim (2012), which worked with tiger nuts from the same country. The fatty acids profile exhibited by the samples of Egypt is in accordance to that reported by Arafat et al (2009).…”

Section: Fatty Acids Profile Of C Esculentus Samplescontrasting

confidence: 68%

Chemometrics as a tool to discriminate geographical origin of Cyperus esculentus L. based on chemical composition

Cortés

Salazar‐García

Malheiro

et al. 2013

Industrial Crops and Products

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a b s t r a c tIn the present study the chemical composition of Cyperus esculentus L. (tiger nut) from four distinct geographical origin (Spain, Egypt, Nigeria, and South Africa) was assessed to observe the possible effect of the cultivation site in the fatty acids profile, sterols composition, and squalene and ␣-tocopherol content.It was verified that the individual fatty acids as well as the different fatty acids fractions were severely affected by the geographical origin. Tiger nut oils were predominantly monounsaturated with lower prevalence of saturated fatty acids, and with capability to provide appreciable amounts of essential fatty acids. The sterols fraction was affected as well, but in lower extent. ␤-sitosterol was the most abundant sterol found, reaching nearly 60% of the total sterols found in tiger nut oils, with significant differences among geographical origins.The fatty acids data, together with the sterols and ␣-tocopherol and squalene data were capable to separate tiger nut samples according to their chemical composition and geographical origin when a principal component analysis was applied. The fatty acids profile could be applied as a possible geographical authenticity marker.

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“…The optimization of the HS-SPME conditions was performed using a central composite experimental design (CCD) (Lasekan & Abdulkarim, 2012). The analysis was based on a 2 4 factorial design plus 8 axial points and 6 replicates in the centre of the design.…”

Section: Experimental Designmentioning

confidence: 99%

Identification of aromatic compounds and their sensory characteristics in cassava flakes and “garri” (Manihot esculentaCrantz)

Lasekan

Hosnas

et al. 2015

CyTA - Journal of Food

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Extraction of oil from tiger nut (Cyperus esculentus L.) with supercritical carbon dioxide (SC-CO2)

Cited by 49 publications

References 20 publications

Extraction of passion fruit seed oil using supercritical CO<sub>2</sub>: a study of mass transfer and rheological property by Bayesian inference

Extraction of passion fruit seed oil using supercritical CO<sub>2</sub>: a study of mass transfer and rheological property by Bayesian inference

Chemometrics as a tool to discriminate geographical origin of Cyperus esculentus L. based on chemical composition

Identification of aromatic compounds and their sensory characteristics in cassava flakes and “garri” (Manihot esculentaCrantz)

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