Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials

Aguieiras, Érika C.G.; Cavalcanti, Elisa D.C.; Silva, Priscila R. da; Soares, Valéria Ferreira; Fernández-Lafuente, Roberto; Assunção, Charles Lima Bessa; Silva, José André C. da; Freire, Denise Maria Guimarães

doi:10.1016/j.renene.2019.10.156

Cited by 50 publications

(24 citation statements)

References 30 publications

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“…The soybean oil TMP triester had better viscosity properties but was lacking with regard to pour point. A similar trend was observed by Aguieiras et al 27 . for NPG esters of soybean oil and castor oil, who found that castor oil ester had better low‐temperature properties as well as oxidation stability but soybean oil ester had a better viscosity index.…”

Section: Chemical Modifications In Vegetable Oilssupporting

confidence: 86%

Synthesis of environment‐friendly, sustainable, and nontoxic bio‐lubricants: A critical review of advances and a path forward

Sancheti

Yadav

2022

Biofuels Bioprod Bioref

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Carbon neutral biosources are sought for the protection of the environment and to meet the energy needs of the growing population. For instance, lubricants are required in huge quantities. Synthesis of environment-friendly, sustainable and non-toxic bio-lubricants from renewable and bio-degradable feedstocks such as vegetable oils and animal fats will be most desirable. The thermal stability and lower volatility of these triglycerides make them suitable as precursors for lubricants. This review briefly covers the chemical modifications required to transform plant-and animal-based triglycerides into efficient biolubricants. Chemical modifications are required to improve one or more physicochemical or tribological properties of bio-lubricants such as low-temperature flow properties or the oxidation stability of fatty acids/oils for different applications. The use of heterogeneous catalysts makes the processes clean. The relationship between their molecular structures, physicochemical properties and lubrication performance is reviewed. Additives such as antioxidants, sulfides, phosphates, metal and metal oxide nanoparticles, and ionic liquids are used to enhance the lubricant properties. With proper modifications in a base oil, support and additives, bio-lubricants can perform similar to or even better than conventional lubricants. A further advantage is that they can be easily adapted using existing infrastructure and lubricant formulations.

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Section: Chemical Modifications In Vegetable Oilssupporting

confidence: 86%

Synthesis of environment‐friendly, sustainable, and nontoxic bio‐lubricants: A critical review of advances and a path forward

Sancheti

Yadav

2022

Biofuels Bioprod Bioref

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“…These properties of biolubricants and its effects on hydrodynamic journal bearings have been discussed in this section. The physicochemical properties of some vegetable oil based biolubricant and standard reference lubricant has been shown in Table 3 [37,[43][44].…”

Section: Physicochemical Propertiesmentioning

confidence: 99%

Study of Vegetable Oil Based Biolubricants and Its Hydrodynamic Journal Bearing Application: A Review

Hussain¹,

Gaval²,

Pratap³

2021

Tribol. Ind.

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Mineral oil based lubricants are generally used in hydrodynamic journal bearing. These lubricants are toxic, non biodegradable and harmful for the environment. Vegetable oil being biodegradable and non-toxic has emerged as an alternative lubricant. This paper reviews recent researches related to biodegradable, environment friendly vegetable oil based lubricant and its application in hydrodynamic journal bearing. Important physicochemical properties of biolubricant for hydrodynamic journal bearing have also been discussed in the paper. Challenges relating to the usage of vegetable oil based biolubricant along with available mitigation strategies are also highlighted. Based on the study it can be concluded that chemically modified vegetable oil along with properly selected additives can effectively replace conventional lubricants.

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“…Castor ( Ricinus communis L.), as a non-edible oil crop, is widely grown and used because it is rich in many useful compounds[16]. Biodiesel and bio-lubricants synthesized from castor beans are widely used in the aerospace industry and are known as renewable “petroleum resources” [17–19]. Ricinine, an alkaloid which exists in stems, leaves and inflorescences, is used as a biological toxin that can inhibit or damage a variety of insects, so it is called a natural biological pesticide [20, 21].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the mechanism of castor tolerance to Cd metal based on proteomics and metabolomics

Zhao

Luo

et al. 2022

Preprint

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The pollution of soil with heavy metals is an increasingly serious worldwide problem, and cadmium (Cd) has attracted attention because of its high toxicity to almost all plants. Since castor tolerates the accumulation of heavy metals, it has the potential for heavy metal soil remediation. We studied the mechanism of the tolerance of castor to Cd stress treatments at three doses: 300 mg/L, 700 mg/L, and 1,000 mg/L. Our research provides new ideas for revealing the defense and detoxification mechanisms of Cd-stressed castor. By combining the results of physiology, differential proteomics and comparative metabolomics, we conducted a comprehensive analysis of the networks that regulate the response of castor to Cd stress. The physiological results mainly emphasize the super-sensitive responses of castor plant roots to Cd stress and the effects of Cd stress on plants’ antioxidant system, ATP synthesis and ion homeostasis. We confirmed these results at the protein and metabolite levels. At the same time, proteomics and metabolomics show that castor plants mainly block the root system’s absorption of Cd2+ by enhancing the strength of the cell wall, and inducing programmed cell death in response to the three different doses of Cd stress. In addition, the plasma membrane ATPase encoding gene (RcHA4), which was significantly upregulated in our differential proteomics and RT-qPCR studies, was transgenically overexpressed in wild type Arabidopsis thaliana for functional verification. The results indicated that this gene plays an important role in improving plant Cd tolerance.

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Enzymatic synthesis of neopentyl glycol-bases biolubricants using biodiesel from soybean and castor bean as raw materials

Cited by 50 publications

References 30 publications

Synthesis of environment‐friendly, sustainable, and nontoxic bio‐lubricants: A critical review of advances and a path forward

Synthesis of environment‐friendly, sustainable, and nontoxic bio‐lubricants: A critical review of advances and a path forward

Study of Vegetable Oil Based Biolubricants and Its Hydrodynamic Journal Bearing Application: A Review

Analysis of the mechanism of castor tolerance to Cd metal based on proteomics and metabolomics

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