Rheological Properties of the Jojoba Biofuel

Ghannam, Mamdouh T.; Selim, Mohamed Y. E.

doi:10.3390/su13116047

Cited by 3 publications

(2 citation statements)

References 39 publications

(45 reference statements)

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“…8b and c. 62,63 Initially, the absolute viscosity was measured as a function of shear rate at two different temperatures of 25 °C and 40 °C. At 25 °C, RBO exhibited an increasing trend in viscosity in the shear rate range of 5-50 s −1 , above which a constant value of ∼67 mPa s was reached.…”

Section: Characterization Of the Biodieselmentioning

confidence: 99%

Efficient biodiesel production from rice bran oil using magnetite immobilized-recombinant lipase from probiotic Bacillus licheniformis

2022

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Section: Characterization Of the Biodieselmentioning

confidence: 99%

Efficient biodiesel production from rice bran oil using magnetite immobilized-recombinant lipase from probiotic Bacillus licheniformis

2022

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“…The use of oils extracted from edible sources in biodiesel production is considered unrealistic due to the increasing demand for food sources, and therefore the research focuses on inedible crops and plants, especially on jojoba oil, which is the necessary raw material for the production of a mixture of highweight monounsaturated esters (4). Jojoba oil is unique among the rest of the types of fruit oils because it is not It contains glycerol, and therefore this oil is formed from a mixture of esters, which gives the oil many characteristics such as its susceptibility to sulfurization and ease of hydrogenation (5).…”

Section: Introductionmentioning

confidence: 99%

Study the effect of adding biofuel from jojoba oil modified with bio-extract on the diesel engine performance

Ali¹,

Ahmad²,

Mahmoud³

2022

ACTA PERIOD TECHN

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Blends of diesel fuel and biofuel of jojoba oil before and after modification with volume ratio of (5%) of the bio-extract containing beneficial bacteria and yeasts were prepared at different mixing ratios. Where the engine's fuel consumption and the maximum pressure in each cylinder were measured, and then the exhaust gases, smoke and fog emitted from the engine were analysed. The results showed that adding jojoba oil modified with bio-extract to diesel fuel reduces the emission of gases CO, CO2, and HC by about 50%, 35% and 14.4% respectively. It also leads to a reduction in engine fuel consumption by (18.75%) at engine speed (200rpm).

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Sustainable thermoresponsive whey protein‐ and chitosan‐based oil‐in‐water emulsions for cosmetic applications

Speer

Amin

2021

Intern J of Cosmetic Sci

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Objective In this study, the biopolymers whey protein and chitosan were used to create a thermoresponsive emulsion. The impact of the inclusion of chitosan and inclusion of specific oils on the rheological properties and response to temperature were investigated by a stepwise build‐up from simple solutions to oil‐in‐water (O/W) emulsions. Whey protein (WP) concentration and chitosan concentration were varied. The results may help develop strategies for incorporating thermoresponsive materials in stable and high‐performing formulations for use in cosmetics. Methods Solutions of whey protein concentrate (WPC) by itself, chitosan by itself and the combination of the two at various concentrations were tested with flow sweeps, temperature sweeps and frequency sweeps. Then, three different oils of jojoba, avocado and silicone were included to form emulsions and the tests were repeated to determine flow behaviour, response to temperature and structure. Results By comparing 15 wt. % and 20 wt. % WP solutions, it was found that 15 wt. % WP could provide good viscosities and modulus at a lower amount of material used. The solution composed of 15 wt. % WP, and 0.5 wt. % chitosan was found to have the greatest structural response to temperature compared to solutions with 1.0 wt. % and 1.5 wt. % chitosan. Compared to the addition of 10 wt. % silicone and 10 wt. % avocado oil to form emulsions, the addition of 10 wt. % jojoba oil further strengthened the gel network the most. The final emulsion with pigment added had improved viscosity and thermoresponsive behaviour. The WP and chitosan emulsions were shear thinning, elastically dominated and behaved as classical gels. The behaviour of the emulsions was dependent upon the hydrophobic interactions between the protein and the oil and the electrostatic interactions between the protein and the chitosan. Conclusion An emulsion composed of 15 wt. % WP, 10 wt. % jojoba oil and 0.5 wt. % chitosan solution was found to have the greatest structural response to temperature. This study of an O/W emulsion containing whey protein concentrate and chitosan demonstrated that different oils and conditions can be used to tune thermoresponsive and rheological behaviour.

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Rheological Properties of the Jojoba Biofuel

Cited by 3 publications

References 39 publications

Efficient biodiesel production from rice bran oil using magnetite immobilized-recombinant lipase from probiotic Bacillus licheniformis

Efficient biodiesel production from rice bran oil using magnetite immobilized-recombinant lipase from probiotic Bacillus licheniformis

Study the effect of adding biofuel from jojoba oil modified with bio-extract on the diesel engine performance

Sustainable thermoresponsive whey protein‐ and chitosan‐based oil‐in‐water emulsions for cosmetic applications

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