Solvent extraction modeling of vegetable oil and its minor compounds

Baümler, Erica R.; Carelli, Amalia A.; Crapiste, Guillermo Hector; Carrín, María Elena

doi:10.1016/j.jfoodeng.2011.06.025

Cited by 15 publications

(12 citation statements)

References 8 publications

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“…After that, the solvent dissolves the oil retained in the cells, forming the miscella, and it diffuses toward the exterior of the particle with the waxes. This phenomenon is also influenced by the collet structure, because the hull content in its interior is not in homogeneous proportions . The high presence of free water causing a more difficult transport of the waxes from inside the particle, along with the dilution effect caused by a higher amount of phospholipids, could explain the less wax content in H 3 .…”

Section: Resultsmentioning

confidence: 99%

Effect of Sunflower Collets Moisture on Extraction Yield and Oil Quality

Pérez

Baümler

Crapiste

et al. 2018

Euro J Lipid Sci & Tech

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The aim of this work is to analyze the effect of moisture content of sunflower expanded material on the quality of the extracted oil by determining its wax, phospholipids, and tocopherol content and composition. Sunflower oil extraction is carried out in a batch extractor at 50 °C using hexane and three moisture levels (5.65, 12.40, and 18.92% dry basis). The increasing moisture content causes an increment in both oil yield and total amount of minor compounds. The total wax content ranges between 808 and 1118 ppm, the wax fraction is composed mainly of esters of between 44 and 58 carbon atoms (>67%), and the distribution does not change with the moisture content. In all the experiments, α‐ and β‐tocopherols and β‐tocotrienol are detected, with the level of α‐tocopherol being higher than 93% and easier to extract at 12.40% moisture. Furthermore, the phospholipids content in the oil increases with moisture content but maintains its profile composition. The obtained results can be explained in terms of water activity and the effect of moisture and hexane extraction on solid structure, studied by scanning electron microscopy. In brief, the moisture content of the collets not only affects the oil yield but also the content of minor compounds, the intermediate moisture rendering the better oil yield and quality. Practical Applications: The data obtained provides updated information on oil yield and quality associated with moisture content of sunflower collets, useful to select the optimal operating conditions for oil extraction and to establish a trade‐off between performance and quality. Sunflower collets are conditioned in their moisture content to determine the isotherm sorption and the effects on the oil extraction and quality.

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Section: Resultsmentioning

confidence: 99%

Effect of Sunflower Collets Moisture on Extraction Yield and Oil Quality

Pérez

Baümler

Crapiste

et al. 2018

Euro J Lipid Sci & Tech

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“…Based on Fick's law, Baümler et al (Baümler, Crapiste, & Carelli, ; Baümler, Carelli, Crapiste, & Carrín, ) proposed a semi‐theoretical and semi‐empirical mathematical model (Equation 7) for the kinetic study of major and minor compounds. They used the model to explain the migration of minor compounds during lipid extraction from sunflower with hexane as the solvent.…”

Section: Methodsmentioning

confidence: 99%

Subcritical butane extraction of oil and minor bioactive components from soybean germ: Determination of migration patterns and a kinetic model

Sun

Shi

et al. 2018

J Food Process Engineering

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For the aim of determining the migration patterns and extraction kinetics of the oil and minor bioactive components during subcritical fluid extraction (SFE) process from soybean germ, the extraction efficiency was investigated at different temperature and time with butane as solvent. The results indicate that flaking treatment is beneficial to the release of soybean germ oil (SGO) and bioactive components. The chosen models (So and Macdonald's model for SGO, Baümler's model for bioactive components) were found to be in good agreement with the experimental data and could be used to explain the SGO and bioactive components migration during SFE process. Furthermore, the activation energy of phytosterols, tocopherols, and phospholipids were 13.42, 12.23, and 22.72 kJ/mol, respectively. In conclusion, high‐quality SGO that contain high levels of phytosterols (26.51 mg/g) and tocopherols (2.29 mg/g) and a lower content of phospholipids (26.68 mg/g) can be obtained with an extraction at 60 °C for 45 min. Practical applications In this study the effects of pretreatment of SG, solid/liquid ratio, extraction temperature and time on the yields of SGO and minor bioactive components were investigated. Simultaneously, the migration patterns and kinetic models of SGO and minor bioactive components described the subcritical butane extraction process accurately. Therefore, the research provided a theoretical support for the pretreatment of raw materials and the parameters control of subcritical extraction of soybean germ oil. The study can guide the popularization and application of subcritical fluid extraction for soybean germ oil extraction effectively. At present, the technology is ready for technical transformation in Henan subcritical fluid extraction company.

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“…More or less three distinct mass transfer steps are to be followed during extraction of oil from plant seeds [10], [11]: a) transport of the oil component through the pores of the matrix (intra-particle diffusion), b) diffusion through the stagnant liquid film present outside the solid seed (external diffusion) and c) removal of the oil component from a solid matrix by thermodynamic partitioning into the adjacent flowing solvent. Importance of the steps is judged by noting the variation of extraction yield with change of condensed solvent flow rate, solvent volume and contact time.…”

Section: A General Extraction Mechanismmentioning

confidence: 99%

Soxhlet Extraction of Crotalaria Juncea Oil Using Cylindrical and Annular Packed Beds

Dutta¹,

Sarkar²,

Mukherjee³

2015

IJCEA

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Abstract-An innovative method for the extraction of vegetable oils, from Crotalaria Juncea seeds, was developed, using suitable solvent in a modified Soxhlet apparatus. The present study describes the general extraction mechanism in modified Soxhlet apparatus and change of mass transfer extent within fixed duration with the change of the shape of packed bed used as a seed holder. Regular cylindrical and annular shaped seed holders were used along with irregular (elliptical) shaped seed holder. Maximization of mass transfer parameter in the up flow regime gave considerable increase in the yield of oil production. Use of annular seed holder gives maximum driving force for the up flow regime and higher mass transfer area, hence improved yield.Index Terms-Annular packed bed, mass transfer regimes, modified soxhlet extractor, crotalaria juncea oil.

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Solvent extraction modeling of vegetable oil and its minor compounds

Cited by 15 publications

References 8 publications

Effect of Sunflower Collets Moisture on Extraction Yield and Oil Quality

Effect of Sunflower Collets Moisture on Extraction Yield and Oil Quality

Subcritical butane extraction of oil and minor bioactive components from soybean germ: Determination of migration patterns and a kinetic model

Soxhlet Extraction of Crotalaria Juncea Oil Using Cylindrical and Annular Packed Beds

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