Basic properties of methyl palmitate-diesel blends

Altaie, Mohamad A. Hasan; Janius, Rimfiel; Taufiq‐Yap, Yun Hin; Rashid, Umer

doi:10.1016/j.fuel.2016.12.031

Cited by 12 publications

(6 citation statements)

References 14 publications

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“…e highest TPC and TFC were Antifungal, antioxidant, and anticancer [84][85][86] Hexadecanoic acid, methyl ester Anti-inflammatory [87], antifibrotic [88], biodiesel [89], neuroprotector [90], additive for detergents, emulsifiers, wetting agents, stabilizers, resins, lubricants, plasticizers, animal feed, and medical research [91] Hexadecanoic acid, ethyl ester Anti-inflammatory [87], antimicrobial [92], acaricidal [93], and flavoring agent or adjuvant [94] Octadecanoic acid, methyl ester (methyl stearate)…”

Section: Discussionmentioning

confidence: 99%

Active Compound Identification in Extracts of N. lappaceum Peel and Evaluation of Antioxidant Capacity

Monrroy

Araúz

García

2020

Journal of Chemistry

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Nephelium lappaceum and its by-products have great potential in the agricultural, pharmaceutical, and food industries. Some studies have shown that N. lappaceum by-products exhibit antimicrobial, antioxidant, antidiabetic, and anticancer properties. However, studies focused on identifying these compounds are rare. The availability of polyphenolic compounds can vary according to environmental conditions, soil, plant variety, and agronomic management. Therefore, in this study, the active compounds in extracts of the N. lappaceum peel were identified, and their antioxidant properties were evaluated using various extraction solvents and both ultrasonic and boiling extraction techniques. The chemical characterization of the N. lappaceum peel exhibited carbohydrate and reducing sugar contents of 12 and 2%, respectively. Phytochemical analysis indicated the presence of flavonoids, tannins, terpenes, and steroids. The total phenolic and flavonoid contents and total antioxidant capacity were the highest in the hydroethanolic extract obtained by ultrasound, with values of 340 mg gallic acid equivalents g−1, 76 mg quercetin equivalents g−1, and 2.9 mmol of Trolox equivalents g−1, respectively. Contrarily, the total anthocyanin content was higher in the acid extract obtained by ultrasound, with a value of 0.7 mg cyanidin-3-O-glucoside equivalents g−1. A total of 18 compounds—including hydroxybenzene, phenolic acid, flavonoids, fatty acids (saturated, unsaturated, and ester), vitamin, arenecarbaldehyde, and phthalate—were identified for the first time in the N. lappaceum peel using gas chromatography-mass spectrometry. The identified compounds have been previously isolated from other plants and reportedly exhibit anticancer, anti-inflammatory, antimicrobial, and antioxidant activities. Thus, the N. lappaceum peel was shown to be a potential source of bioactive compounds of immense importance in the pharmacological and food industries.

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Section: Discussionmentioning

confidence: 99%

Active Compound Identification in Extracts of N. lappaceum Peel and Evaluation of Antioxidant Capacity

Monrroy

Araúz

García

2020

Journal of Chemistry

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“…where SATC16-C24 is the content (wt %) of saturated FAMEs having chains with 16 to 24 C atoms. ii) Density at 15 °C, kinematic viscosity, higher heating value and oxidative stability of methyl oleate were taken from reference [64]. It is important to mention that no equation was found to estimate the CFPP for biodiesels with a content of saturated FAMEs as high as those of the three fractions of this work.…”

Section: Potential Of Lipids As Feedstock For Biofuel Productionmentioning

confidence: 99%

“…where SATC16-C24 is the content (wt %) of saturated FAMEs having chains with 16 to 24 C atoms. ii) Density at 15 • C, kinematic viscosity, higher heating value and oxidative stability of methyl oleate were taken from reference [64].…”

Section: Potential Of Lipids As Feedstock For Biofuel Productionmentioning

confidence: 99%

Fatty Acids, Hydrocarbons and Terpenes of Nannochloropsis and Nannochloris Isolates with Potential for Biofuel Production

et al. 2018

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Marine microalgae are a promising feedstock for biofuel production given their high growth rates and biomass production together with cost reductions due to the use of seawater for culture preparation. However, different microalgae species produce different families of compounds. Some compounds could be used directly as fuels, while others require thermochemical processing to obtain quality biofuels. This work focuses on the characterization of three marine microalgae strains native in Mexico and reported for the first time. Ultrastructure and phylogenetic analysis, suggested that they belong to Nannochloropsis sp. (NSRE-1 and NSRE-2) and Nannochloris sp. (NRRE-1). The composition of their lipid fractions included hydrocarbons, triacylglycerides (TAGs), free fatty acids (FFAs) and terpenes. Based on theoretical estimations from TAG and FFA composition, the potential biodiesels were found to comply with six of the seven estimated properties (ASTM D6751 and EN 14214). On the other hand, hydrocarbons and terpenes synthesized by the strains have outstanding potential as precursors for the production of other renewable fuels, mainly green diesel and bio-jet fuel, which are “drop-in” fuels with quality properties similar to fossil fuels. The validity of this theoretical analysis was demonstrated for the oxygenates of strain NSRE-2, which were experimentally hydrodeoxygenated, obtaining a high-quality renewable diesel as the reaction product.

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“…The aim of this experiment is to know how the rate of precipitation happened during unstable period and stable period. Monopalmitic is chosen as variation as it affects the CFP significantly [7], and it is abundant in palm-oil feedstock.…”

Section: Introductionmentioning

confidence: 99%

Effect of monopalmitic content and temperature on precipitation rate in biodiesel-petroleum diesel blends

et al. 2018

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The need for cleaner fuel increases alongside the necessity of reducing greenhouse gas emissions. Biodiesel is considered as one of best options for cleaner energy. However, it has disadvantages due to lower stability, lesser cold flow properties (CFP), and higher viscosity, which are mainly caused by fatty acid type and content. These works investigate CFP of various biodiesel blends B20 & B30, with the objective on how the monopalmytic as one of the saturated monoglycerides (SMG) content and Temperatures affect the precipitation rate. A set of 100ml separatory funnels containing various samples were put in refrigerators in controlled-temperature, i.e.15°C; 20°C; and room temperature. The rate of precipitation was observed every day for 2 weeks using 0.8μm membrane filter. Results indicated precipitation rate of B30 was higher than that of B20. As it was expected, the precipitate was taken at the same temperature, 20°C, resulting in B30 had more precipitate in the end (37.6 mg) compared to B20 (22.2 mg). The closer to cloud point also indicates the higher rate of precipitation as 4th day B20 at 15°C (25.4 mg) compared 4th day B20 at 20°C (19.3 mg). The change of crystal from less stable α-phase to more stable, less soluble β-phase is also proven to significantly affect the rate of precipitation.

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Basic properties of methyl palmitate-diesel blends

Cited by 12 publications

References 14 publications

Active Compound Identification in Extracts of N. lappaceum Peel and Evaluation of Antioxidant Capacity

Active Compound Identification in Extracts of N. lappaceum Peel and Evaluation of Antioxidant Capacity

Fatty Acids, Hydrocarbons and Terpenes of Nannochloropsis and Nannochloris Isolates with Potential for Biofuel Production

Effect of monopalmitic content and temperature on precipitation rate in biodiesel-petroleum diesel blends

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