Removal of fatty acid by natural and modified bentonites: Elucidation of adsorption mechanism

Resende, Ricardo; Leal, Paulo Vitor Brandão; Pereira, Douglas Henrique; Papini, Rísia Magriotis; Magriotis, Zuy M.

doi:10.1016/j.colsurfa.2020.125340

Cited by 23 publications

(7 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Except for metallic zinc, all tested compounds increased the FFAs levels. Bentonites can adsorb fatty acids at low temperatures (around 30 °C); however, this probably did not occur in same extension at 250 °C. The use of a high temperature in the bench model deodorizer can result in the hydrolysis of acylglycerols, increasing the concentration of free fatty acids.…”

Section: Resultsmentioning

confidence: 94%

Mitigation Studies Based on the Contribution of Chlorides and Acids to the Formation of 3-MCPD, 2-MCPD, and Glycidyl Esters in Palm Oil

Capristo

Leme

Ferrari

et al. 2021

ACS Food Sci. Technol.

View full text Add to dashboard Cite

This study aimed to evaluate the influence of chloride ions and acids on the formation of 3-MCPD, 2-MCPD, and glycidyl esters in palm oil as well as the use of metals, adsorbents, salts, amino acids, and anhydrous ethanol to simultaneously mitigate the levels of the compounds during deodorization. The concentrations of 3-MCPD and 2-MCPD esters increased more sharply in the presence of chloride (hydrochloric acid or sodium chloride). The use of zinc oxide caused a small reduction (8.5%) in 3-MCPD esters, whereas metallic zinc favored the formation of all contaminants. The levels of the substances were significantly reduced in the presence of potassium acetate (up to 98.7%), and the use of glycine decreased the concentration of chloropropanols esters by 43.8%. Anhydrous ethanol used as a stripping agent reduced the levels of 3-MCPD, 2-MCPD, and glycidyl esters by 49%, 54%, and 31%, respectively, indicating a promising strategy to mitigate these contaminants.

show abstract

Section: Resultsmentioning

confidence: 94%

Mitigation Studies Based on the Contribution of Chlorides and Acids to the Formation of 3-MCPD, 2-MCPD, and Glycidyl Esters in Palm Oil

Capristo

Leme

Ferrari

et al. 2021

ACS Food Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The XRD analysis of Figure 1(b) showed the characteristic peaks of bentonite, with the main peak appeared at 2 θ = 6° (Huang et al, 2017). The characteristic peaks of bentonite in the XRD pattern corresponded to montmorillonite at 2 θ = 4°, 20°, 21°, 35°, and 61°, respectively, which made bentonite a good adsorbent (Resende et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

Simultaneous recovery of ammonium and total phosphorus from toilet tail water by modified palygorskite–bentonite clay

Sun

Gui-xia

et al. 2020

Water Environment Research

View full text Add to dashboard Cite

show abstract

“…The utilization of bentonite as an adsorbent often entails the amalgamation of bentonite with a solution or waste stream that contains impurities, afterwards followed by the procedures of separation and purification in order to achieve the intended outcomes. The efficacy and efficiency of bentonite adsorption may exhibit variability contingent upon several aspects, encompassing the specific type of bentonite employed, particle size, pH of the solution, temperature, and concentration of the compounds targeted for adsorption (Resende et al, 2020).…”

Section: Bentonitementioning

confidence: 99%

Use of Bentonite Adsorbent from Ujong Pacu for the Adsorption Free Fatty Acids from Crude Palm Oil

Muhammad,

Kamar,

Chandra

et al. 2023

J. Renew Energ. Electric. Comp Eng

View full text Add to dashboard Cite

Because free fatty acid content impacts crude palm oil's physical and chemical characteristics, it is a good indicator of the oil's quality. Investigated effective operating parameters include contact time on adsorption and initial free fatty acid concentration. This system was studied using Langmuir and Freundlich isotherms, and the kinetic data was examined using pseudo-first-order and pseudo-second-order models. The findings indicated that increasing FFA concentrations increased the adsorption capacity of free fatty acids using Ujong Pacu bentonite, and it was discovered that CPO weighing 30 g was the ideal weight for FFA adsorption capacity. At equilibrium, the ideal value of adsorption capacity is 502.17 mg/g. While the pseudo-second order model is the model that best describes the adsorption kinetics of the free fatty acid content in Crude, the Freundlich isotherm model best describes the equilibrium data, which indicates the heterogeneous surface of the adsorbent pores and shows that the adsorbate layer formed on the surface of the adsorbent is multilayer. Correlation coefficient (R2) for palm oil (CPO) in the range of 0.946 to 0.9975.

show abstract

Removal of fatty acid by natural and modified bentonites: Elucidation of adsorption mechanism

Cited by 23 publications

References 39 publications

Mitigation Studies Based on the Contribution of Chlorides and Acids to the Formation of 3-MCPD, 2-MCPD, and Glycidyl Esters in Palm Oil

Mitigation Studies Based on the Contribution of Chlorides and Acids to the Formation of 3-MCPD, 2-MCPD, and Glycidyl Esters in Palm Oil

Simultaneous recovery of ammonium and total phosphorus from toilet tail water by modified palygorskite–bentonite clay

Use of Bentonite Adsorbent from Ujong Pacu for the Adsorption Free Fatty Acids from Crude Palm Oil

Contact Info

Product

Resources

About