Cottonseed biodiesel oxidative stability in mixture with natural antioxidants

Freitas, João Paulo Almeida; França, Fernanda Rocha Morais; Silva, Maria Susana; Toms, Richard J.; Silva, Gabriel Francisco da

doi:10.1007/s11814-019-0287-x

Cited by 18 publications

(9 citation statements)

References 24 publications

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“…Glycerin phase was removed and the biodiesel was washed with distilled water many times to remove the catalyst. After washing, anhydrous sodium sulphate was added to the separated biodiesel to get rid of the residual moisture followed by filteration under layer anhydrous sodium sulphate [9].…”

Section: Biodiesel Preparationmentioning

confidence: 99%

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Liposome nanocapsules of aqueous extract from defatted wheat germ as by-products to enhance stability of biodiesel

Al-Amrousi

Amrousi

2021

Egypt. J. Chem.

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Biodiesel is an alternative to fossil fuels and it's known by its low stability. Natural antioxidants attract researcher interest as safe replacement of the toxic synthetic ones to improve the oxidative stability. The aim of this work is to evaluate the antioxidant activity of natural extracts from wheat industry by products (wheat germ and defatted wheat germ) using low cost, safe and eco-friendly solvents. Loading the more active aqueous extract in liposome nanocapsules to overcome on its solubility problem in lipid then using it to enhance the stability of biodiesel is the novelty of this work. The antioxidant activity of different extracts was measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH• ) and β-carotene-linoleic acid oxidation method (Coupled autoxidation). Total phenolic content and total flavonoid content were also determined for the different extracts. The oxidation and storage stability of biodiesel treated with defatted wheat germ aqueous extract loaded in liposome, in comparison with control sample and biodiesel treated with synthetic antioxidant were evaluated using accelerated oven test.Water extracts of wheat germ and defatted wheat germ gave higher bioactive content and higher antioxidant activity than other solvents extracts. Moreover, biodiesel treated with liposome nanocapsules of aqueous extract gave higher stability than both control and samples treated with synthetic antioxidants. These results concluded that natural antioxidants from wheat industry by-products are a promising alternative to synthetic antioxidants and attract attention to more research about using liposome nanocapsulation in improving biodiesel stability.

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Section: Biodiesel Preparationmentioning

confidence: 99%

“…al. study assessed the activity of curcumin , catechin and quercetin as antioxidants on methylic biodiesel from cotton seed oil [9]. The comparative study that done by Rodrigues et.al.…”

Section: Introductionmentioning

confidence: 99%

Liposome nanocapsules of aqueous extract from defatted wheat germ as by-products to enhance stability of biodiesel

Al-Amrousi

Amrousi

2021

Egypt. J. Chem.

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“…The chemical with the high affinity for oxygen such as ascorbic acid and β-carotene have the mutual role of activating antioxidants and oxygen scavenging [95]. The chemicals with unshared pair of electrons in their molecular structure activate the action of complexation including biological antioxidants of enzymes like glucose oxidase, catalase and superoxide dismutase; even with simultaneous chelating action in ethylenediamine tetra-acetic acid (EDTA), salts of EDTA, citric acid and salts, phosphoric acid, phosphates and amino acids [96,97]. The high antioxidation capacity of poly-phosphorous (hydroperoxide dissociation agent), synthetic phenolic, BHT, gallic acid (GA), BHA, PG, TBHQ, pyrogallol (PY), 2,5-di-tert-butyl-hydroquinone (DTBHQ), IONOX 220, Vulkanox, ZKF, Vulkanox, BKF and Baynox as additives for Biofuels are frequently documented [48,98].…”

Section: Corrosion Control and Inhibitionmentioning

confidence: 99%

Biofuels-related materials deterioration in biorefineries, transportation and internal combustion engines: a technical review

Hosseinabadi

Moheimani

Javaherdashti³

2021

Corrosion Engineering, Science and Technology

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Biofuels, like any high-affinity chemical mixtures; can cause tribological effects at interfaces with metallics (ferrous-nonferrous) and non-metallics due to medium assisted activation of corrosion by unsaturated components. The damages; corrosion and tribological effects on surfaces (abrasive wears and edge/cosmetic corrosion), also include contamination and biofuels replacement due to quality decrease. The most common phenomena include the oxidation of biodiesel which increases its affinity towards metallic counterparts, i.e. automotive parts or processing apparatus, via formation of peroxide compounds by oleic acid, linoleic acid, and linolenic acids. This corrosion receptive medium causes pitting; due to high water content and high electronegativity of dissolved oxygen, and galvanic corrosion; due to high electrical conductivity. The main factors for higher aggressive corrosivity of biofuels can be summarized as high electrical conductivity, polarity, solubility, and hygroscopicity. This paper closely reviews the materials deterioration in contact with biofuels and possible corrosions.

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“…Furthermore, the usage of natural plant extracts as antioxidants such as tocopherols, gossypol, quercetin, cardanol, catechin, curcumin, myricetin, oregano, basil, and bilberry have also been performed to decrease the oxidation activity of biodiesel. [26][27][28] Blending of Cashew nut shell liquid including cardanol and its derivatives at 1000 ppm, biodiesel increased the oxidation stability by about 50%. 29 The effect of leaf extracts from Pongamia pinnata on the oxidation stability of calophyllum biodiesel yielded better results upon the addition of 1.5% of leaf extract and the induction period (IP) increased from 5.0 h to 14 h. 30 Moringa oleifere has been reported as the best antioxidant blend for biodiesel.…”

Section: Introductionmentioning

confidence: 99%

Inhibitory effect of thyme oil as an antioxidant for waste cooking oil biodiesel crystallization

Uğuz

2021

Energy & Environment

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The effects of thyme oil extract as an antioxidant on crystallization properties of waste cooking oil biodiesel were investigated. The inhibitory effect was determined for ASTM D7545 standard method for biodiesel added with 1000, 2000, and 3000 ppm of additives by using oxifast device and compared with the chemical antioxidant butylated hydroxytoluene (BHT). Inhibition time data were determined by converting the oxidation stability analysis results. The crystallization temperatures (Tcr) of the samples were determined by using a Differential Scanning Calorimetry (DSC) technique. Tcr values of samples with antioxidants were decreased compared to the non-antioxidant biodiesel sample (B100). The order of antioxidant power was B100<B100T1<B100T2 = B100BHT1<B100BHT2<B100T3<B100BHT3. The solid fat content (SFC %) values were determined with different antioxidant concentrations versus different times. The minimum SFC % was determined in B100T3 and B100BHT3 in 3000 ppm antioxidant concentrations in 720 min. DSC results show that the crystallization onset temperatures for B100, B100T3, and B100BHT3 were −51.83 °C, −53.59 °C, and −54.15 °C, respectively. The kinetics of crystallization was determined and k and n values were calculated. The addition of thyme oil extract as a natural antioxidant has a positive effect on biodiesel oxidative stability for all concentrations.

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Cottonseed biodiesel oxidative stability in mixture with natural antioxidants

Cited by 18 publications

References 24 publications

Liposome nanocapsules of aqueous extract from defatted wheat germ as by-products to enhance stability of biodiesel

Liposome nanocapsules of aqueous extract from defatted wheat germ as by-products to enhance stability of biodiesel

Biofuels-related materials deterioration in biorefineries, transportation and internal combustion engines: a technical review

Inhibitory effect of thyme oil as an antioxidant for waste cooking oil biodiesel crystallization

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