Extraction of oil from jatropha seeds using a twin-screw extruder: Feasibility study

Evon, Philippe; Kartika, Ika; Cerny, Muriel; Rigal, Luc

doi:10.1016/j.indcrop.2013.02.034

Cited by 53 publications

(57 citation statements)

References 42 publications

(61 reference statements)

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“…Energy required to achieve a given deformation (Herák, Kabutey, Sedláček, et al, ) of the compressed product mass, at the indicated loads is deformation energy, E (J) and was determined as

E = \sum_{n = 0}^{n = i - 1} true[true(\frac{F_{n + 1} + F_{n}}{2} true) \times true({normalδ}_{n + 1} - {normalδ}_{n} true) true]

where

i

is the number of subdivisions of the deformation axis, which in this case was logged by the test equipment in incremental steps of 0.01 mm;

F_{n}

(N) is the compressive force for a known deformation,

{normalδ}_{n}

(mm). Specific mechanical energy is energy per unit mass of the material processed (Evon, Amalia Kartika, Cerny, & Rigal, ). For any treatment combination, this may be expressed as the ratio of the deformation energy to the mass of the material compressed during each test:

e_{i j} = \frac{E_{i j}}{m_{i j}}

where i and j represent levels of compressive stress and repetitive strain (or compression cycle), respectively, and e ij , E ij , and m ij are specific mechanical energy, deformation energy, and mass of compressed oilseed subjected to the i th compressive stress on the j th compression cycle.…”

Section: Methodsmentioning

confidence: 99%

Compressive stress, repetitive strain, and optimum expression of oil from bulk volumes of sesame seeds

Akangbe

Herák

2018

J Food Process Engineering

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Compressive expression of oil from bulk seeds is a self‐limiting process and commonly adopted techniques for optimizing oil recovery result in alterations of the product and its quality. In this study, effects of select magnitudes of compressive stress and repetitive strain on mechanical response and performance during cold compressive expression of oil from sesame seeds were investigated and responses modeled using forward stepwise regression technique. Significant gains in oil yield and performance were achieved through repeated induction of strain and by increasing magnitudes of the applied stress. Cumulative improvement in the performance of the scheme over existing single cycle compression techniques ranged between 34.1 and 161.9% over the range of treatments investigated. Corresponding improvement in mechanical response was also achieved. Specific mechanical energy demand was less with every additional compression cycle. The pressure ratio at the oil point during each compression cycle was an important indicator of recoverable oil. Practical applications A technique for maximizing the yield of oil from oilseeds and efficiency during cold compressive expression is presented which may be incorporated in the design of compression devices or similar systems, which would permit repeated induction of stress with a view to optimizing process efficiency without denaturing the product or altering its quality. The pressure ratio at the oil point is also presented, which is a fitting indicator of requisite stress for optimizing yield and performance.

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“…Energy required to achieve a given deformation (Herák, Kabutey, Sedláček, et al, ) of the compressed product mass, at the indicated loads is deformation energy, E (J) and was determined as

E = \sum_{n = 0}^{n = i - 1} true[true(\frac{F_{n + 1} + F_{n}}{2} true) \times true({normalδ}_{n + 1} - {normalδ}_{n} true) true]

where

i

is the number of subdivisions of the deformation axis, which in this case was logged by the test equipment in incremental steps of 0.01 mm;

F_{n}

(N) is the compressive force for a known deformation,

{normalδ}_{n}

e_{i j} = \frac{E_{i j}}{m_{i j}}

Section: Methodsmentioning

confidence: 99%

Compressive stress, repetitive strain, and optimum expression of oil from bulk volumes of sesame seeds

Akangbe

Herák

2018

J Food Process Engineering

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“…Oil yield obtained is about 89.4% using single screw extruder (Karaj, Müller 2011) and 70.6 % using twin screw extruder (Evon et al 2013) reached. Traditionally, seed can be crushed using stone (Chachange 2003) but the results are certainly not efficient.…”

Section: Crushingmentioning

confidence: 96%

“…Further, co-rotation of the twin-screw extruder is the usually used method. It can extract oil from sunflower seeds giving a total oil yield of 78% but still has 10-13% oil content in the cake, for Jatropha seeds obtained oil yield is 70.6% and 7.7% residual oil content (Evon et al 2012(Evon et al , 2013. It is more effective due to higher transportation and better extraction at the twinscrew interface (Kartika 2005).…”

Section: Operating Principlesmentioning

confidence: 99%

Comparison of oil press for jatropha oil - a review

Siregar¹,

Ghani²,

Haron³

et al. 2015

Res. Agric. Eng.

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Siregar A.N., Ghani J.A., Haron C.H.C., Rizal M., Yaakob Z., Kamarudin S.K. (2015): Comparison of oil press for jatropha oil -a review. Res. Agr. Eng., 61: 1-13.As petrol will soon be exhausted in the near future, Jatropha is going to be one of the substitute candidates for future biodiesel production. Countries of South-East Asia, such as Malaysia, they are going to start the establishment of Jatropha plantations assuming that Jatropha will be the main resource for biodiesel production. A press is commonly used to extract oils from Jatropha. An oil press can be manually driven or engine-powered. In this paper, we will review some available advances focused on mechanical extraction techniques, covering three types of press for Jatropha oil extraction. We have found that major points like operating principles, oil extraction levels, advantages and disadvantages of each press and important factors to increase oil recovery. Based on the study, three types of press are: ram press, which is ineffective; strainer press, which is able to produce more oil than others and cylinder-hole press, which is the best due to its capacity in extracting oil from Jatropha seeds for about 89.4% of oil yields.

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“…Over the last twenty years, there has been much research focusing on continuous oil extraction by mechanical pressing using extrusion technology [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. In the case of coriander fruits, both single- [18,21] and twin-screw extruders [19,22] were used to successfully conduct the extraction of vegetable oil.…”

Section: Introductionmentioning

confidence: 99%

New Renewable and Biodegradable Fiberboards from a Coriander Press Cake

Uitterhaegen¹,

Nguyen²,

Merah³

et al. 2016

j renew mater

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao. ABSTRACT: New fiberboards were manufactured from a coriander cake through thermo-pressing, and the influence of thermo-pressing conditions (temperature, pressure and time) on the boards' mechanical properties, their thickness swelling and their water absorption was evaluated. Because the protein glass transition systematically occurred during molding, this resulted in effective wetting of the fibers. Consequently, all boards were cohesive, with proteins and fibers acting as binder and reinforcing fillers, respectively. Flexural properties were influenced by all tested conditions, and the optimal board was molded at 200 °C temperature, 36.8 MPa pressure and 180 s time. Its flexural strength at break and its elastic modulus were 11.3 MPa and 2.6 GPa, respectively, with the highest surface hardness of the entire study. Simultaneously, thickness swelling and water absorption were low: 51% and 33%, respectively. This board would be applicable as pallet interlayer sheeting for the manufacture of containers or furniture or in the building trade.

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Extraction of oil from jatropha seeds using a twin-screw extruder: Feasibility study

Cited by 53 publications

References 42 publications

Compressive stress, repetitive strain, and optimum expression of oil from bulk volumes of sesame seeds

Compressive stress, repetitive strain, and optimum expression of oil from bulk volumes of sesame seeds

Comparison of oil press for jatropha oil - a review

New Renewable and Biodegradable Fiberboards from a Coriander Press Cake

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