Coconut endocarp and mesocarp as both biosorbents of dissolved hydrocarbons in fuel spills and as a power source when exhausted

Luis-Zarate, Victor Hugo; Rodriguez-Hernandez, Mayra Cecilia; Alatriste‐Mondragón, Felipe; Cházaro-Ruiz, Luis F.; Rangel-Méndez, J. Rene

doi:10.1016/j.jenvman.2018.01.041

Cited by 23 publications

(11 citation statements)

References 55 publications

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“…Research published in the literature indicates that the adsorption of oil by biomass increases significantly in the first 5 minutes, then there is an insignificant increase until equilibrium (Abdelwahab, Nars & Thabet, 2017;Annunciado et al, 2005;Din et al, 2017;Luis-Zarate et al, 2018;Nwadiogbu, Ajiwe & Okoye, 2016). This can be explained by the initial amount of pores and available surface in the fibers, which are occupied over time (through the interaction of oil and water with the available functional groups), reducing the availability and consequently the sorption capacity.…”

Section: Kinetic Studymentioning

confidence: 99%

“…The use of fibers has as main advantages the low cost, low abrasiveness, atoxicity, low density, in addition to ecological and social aspects, due to the better recyclability and biodegradability (Pessôa et al, 2019). These fibers have in their physical structure a large number of pores and a high resistance to wear, which makes them excellent sorbent (Luis-Zarate, Rodriguez-Hernandez, Alatriste-Mondragon, Chazaro-Ruiz & Rangel-Mendez, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Estudo cinético e de equilíbrio de adsorção de petróleo utilizando fibras de coco pré-tratadas

Cardoso¹,

Santana²,

Silva³

et al. 2020

RSD

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The recent oil spill off the Brazilian coast serves as an alert for research to be carried out that includes biotechnological processes and products for cleaning marine environments. Therefore, this work aims to compare the use of residual coconut fibers (Cocos nucifera L.) in natura, pretreated with Protic Ionic Liquid (PIL) [2-HEA] [Ac] (innovative treatment) and by mercerization/acetylation (traditional treatment) as a biosorbent of petroleum spilled in the marine environment in a hydrodynamic simulation on a laboratory scale. The study of the kinetics and adsorption equilibrium were performed to determine the limiting mechanism of adsorption, as well as the maximum petroleum adsorption capacity for the coconut fibers studied. Characterizations of the fibers were carried out using SEM and FITR, and the kinetics and sorption equilibrium tests with petroleum from the Campos Basin and saline water. It was possible to observe that a minimum time of 5 min of contact between the adsorbent and adsorbent is necessary for biosorption to occur. The fibers treated with PIL (4.63 g/g) had greater sorption capacity, the fiber in natura (3.62 g/g) less capacity and the fiber with mercerization/acetylation treatment (4.26 g/g) has sorption with intermediate values. The kinetic model that best fitted the experimental data was pseudo-second order, indicating chemosorption as the limiting step of adsorption. The sorption equilibrium model chosen was Sips, determining adsorption in multilayer (Freundlich) with low concentrations of petroleum and in monolayer (Langmuir) with high concentrations. Based on these results, it can be said that the coconut fibers (Cocos nucifera L.) treated have a greater capacity to adsorb petroleum than the fibers in natura, and the fibers treated with PIL [2-HEA][Ac] have greater sorption capacity, among those evaluated, to be used in oil spills.

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Section: Kinetic Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estudo cinético e de equilíbrio de adsorção de petróleo utilizando fibras de coco pré-tratadas

Cardoso¹,

Santana²,

Silva³

et al. 2020

RSD

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“…Cocos nucifera (C-nucifera) Linn is an important fruit tree in the world providing food for millions of people especially in the tropical and sub-tropical regions and with its many uses [1]. Cocos nucifera is called Kwakwa in Hausa, Agbon in Yoruba, Aki in Igbo and famously known as coconut in English [2]. Coconut is composed of an external epicarp, a mesocarp, an internal endocarp, embryo and endosperm [3].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Properties of Different Husk Extracts of Cocos nucifera (Linn) in South Western Nigeria

Erinle

Ajayi

Osuntokun

2021

SAJRM

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Aim: The husk of coconut is part of drupe which have enormous benefit to humanity. However, what constitute the antimicrobial activity has not been fully investigated, and this is the basis for the study. Materials and Methods: The husk of coconut collected from local growers subjected to extraction process. The antimicrobial activity was investigated against bacterial strains; Staphylococcus aureus, Escherichia coli, Proteus mirabilis, Salmonella typhi, Enterococcus faecalis, Klebsiella aerogene, Pseudomonas aeruginosa, Streptococcus pneumoniae by agar well diffusion method using n-hexane, ethanol and distilled water as solvents. Results: Aqueous extracts of coconut showed inhibitory effect against the different tested bacteria organisms with variable zone of inhibition range 7 to 22 mm. Conclusion: The aqueous extracts of coconut exhibited the presence of highly effective bioactive ingredients in these extracts. This can be identified, assay and characterize to be used as synthetic drug which would be available for treatment of bacterial infection.

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“…2 Coconut is composed of an external epicarp, a mesocarp, an internal endocarp, embryo and endosperm. 3 The epicarp is the external skin, the mesocarp is sinewy and tanned when dry (husks), the endocarp is the hard dim center (shell), and embryo is the whitish edible substance housing the endosperm, which is the sweet slightly acidic water. 4 Coconut husk is full of long, coarse fibres, all running in one direction and embedded in coir dust-like matrix of material.…”

mentioning

confidence: 99%

“…Coconut husk, milk and shell derived from the mesocarp, endosperm and endocarp may not have been attributed to any medicinal values with scientific proofs. [3][4][5] There are literatures relating to the usefulness of coconut milk, while coconut shell and husks are of less importance to native users. 5,6,7 Coconut fibre and shell have several economic importance in other sectors while, their medicinal values are yet to be harness as much as we are aware.…”

mentioning

confidence: 99%

Comparative Benefits of Cocos nucifera L. Husk, Milk and Shell Extracts on Body Weight Changes and Haematological Indices in Male Rats

2020

TJNPR

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Cocos nucifera (Linn.) is from the family Arecaceae known as coconut, coco, coco-da-bahia, or coconut-of-the-shoreline and is ordinarily a widespread organic product known to man. 1 Cocos nucifera is called Kwakwa in Hausa, Agbon in Yoruba, Aki in Igbo and famously known as coconut in English. The term coconut can allude to the entire coconut palm or the seed, or the natural products, which, organically, is a drupe, not a nut. 2 Coconut is composed of an external epicarp, a mesocarp, an internal endocarp, embryo and endosperm. 3 The epicarp is the external skin, the mesocarp is sinewy and tanned when dry (husks), the endocarp is the hard dim center (shell), and embryo is the whitish edible substance housing the endosperm, which is the sweet slightly acidic water. 4 Coconut husk is full of long, coarse fibres, all running in one direction and embedded in coir dust-like matrix of material. 5 The husks absorb and retain water due to their porous nature consisting of cellulose, lignin, pyroligneous acid, gas, charcoal, tar, tannin, and potassium, while the coconut dust content is rich in lignin and cellulose. 5 Coconut milk, on the other hand, contained a high amount of protein, and amino acids as

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Coconut endocarp and mesocarp as both biosorbents of dissolved hydrocarbons in fuel spills and as a power source when exhausted

Cited by 23 publications

References 55 publications

Estudo cinético e de equilíbrio de adsorção de petróleo utilizando fibras de coco pré-tratadas

Estudo cinético e de equilíbrio de adsorção de petróleo utilizando fibras de coco pré-tratadas

Antibacterial Properties of Different Husk Extracts of Cocos nucifera (Linn) in South Western Nigeria

Comparative Benefits of Cocos nucifera L. Husk, Milk and Shell Extracts on Body Weight Changes and Haematological Indices in Male Rats

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