Use of Constrained Mixture Design in the Optimization of a Method Based on Extraction Induced by Emulsion Breaking for the Determination of Ca, Mg, Mn, Fe and Zn from Palm Oil by Flame Atomic Absorption Spectrometry

Valasques, Gisseli Souza; Santos, André Luíz dos; Silva, Darllen G. da; Alves, Juscelia Pereira Santos; Bezerra, Marcos Almeida

doi:10.21577/0103-5053.20180095

Cited by 7 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The bottom aqueous phase then is collected and analyzed by spectrometric techniques. EIEB has been successfully applied in the determination of metals in different types of oil samples, such as diesel oil, − biodiesel, , edible oils, − used lubricating oil, , jet fuel, and gasoline. ,, A few papers have already been published regarding the application of EIEB in the analysis of crude oils; − however, none of these papers report the determination of Ni or V in this type of sample.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Extraction Induced by Emulsion Breaking for Ni and V Extraction from Off-Shore Brazilian Crude Oils

2019

View full text Add to dashboard Cite

This work reports a study on the evaluation of extraction induced by emulsion breaking (EIEB) for Ni and V extraction from crude oil. Graphite furnace atomic absorption spectrometry (GF AAS) was employed for the determination of the analytes in the extracts. The extraction procedure was based on the preparation of oil-in-water emulsions, by mixing the crude oil with the aqueous extractant solution containing HNO 3 and Triton X-114 as surfactant, which were subsequently broken by heating. After emulsion breaking, two phases were formed: a top phase containing the original crude oil sample and a bottom phase, which was the aqueous extract containing the extracted Ni and V. The aqueous phase was collected, appropriately diluted, and analyzed by GF AAS for the determination of Ni and V in the extracts and subsequent calculation of extraction efficiency. The extraction procedure was first studied using water-in-ol emulsion; the best extraction conditions were achieved with 2.5 g of sample (about 3 mL) emulsified in 1 mL of extraction solution containing 6.5 mol L −1 of nitric acid and 20% (m/v) of Triton X-114. However, the extraction efficiency was only about 10% for Ni and V. The influence of the sample/ extractant volume ratio showed that sample volume lower than 3 mL resulted in higher extraction efficiency for both analytes, highlighting the use of oil-in-water emulsion to increase Ni and V extraction efficiency. Maximum extraction of Ni and V was obtained when the crude oil (approximately 0.3 g) was diluted with 2.5 mL of mineral oil free of metals. The diluted sample was emulsified by vigorous manual agitation with 3 mL of an extractant solution containing 20% (m/v) Triton X-114 and 6.5 mol L −1 HNO 3 . The emulsion breaking was induced by heating at 90 °C for 40 min, followed by centrifugation at 5000 rpm for 15 min. The EIEB procedure was applied to five crude oil samples, and the extraction efficiency was accessed from the total concentration of Ni and V in the samples determined by direct analysis by GF AAS and ICP-MS. The optimized EIEB procedure provided extraction of 82−103% of the Ni contained in the tested samples and 50−74% of the V.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of Extraction Induced by Emulsion Breaking for Ni and V Extraction from Off-Shore Brazilian Crude Oils

2019

View full text Add to dashboard Cite

show abstract

“…Table 5 presents a subdivision of the MDs' possible applications that can be used within the area, and these subdivisions were classified as applications related to the area: animal, bioenergy, biology, and materials. [29,30,[187][188][189][190][191] According to Table 5, MD research in bioenergy aims to optimize biodiesel synthesis from a blend of five different oils [181]; investigate the effects of cellulose, xylan, and lignin constituents on biomass pyrolysis characteristics and bio-oil composition [177]; production of biomethane using municipal sludge wastes, grease trap waste, and meat processing waste [179]; investigate the ability of the oleaginous yeast Debaryomyces etchellsii strain for lipid production for biodiesel manufacture using different agro-industrial wastewaters (cheese whey, expired soft drinks and fresh olive mill) as substrates [175]; investigate the effect of light wavelength on Dunaliella salina to increase microalgae lipid productivity for biodiesel production [176]; optimization of viscosity and density of refined palm oil-Melaleuca Cajuputi oil binary blends for a novel biofuel [180]; formulation of a vermicomposting in organic matters with dairy manure vermicompost, straw, and peat using MDs in cucumber seedling experiment to evaluate the compressed substrates [183]; optimization of concentrations of the solvents ethanol, acetone and water in the extraction of total phenolics present in cashew apple bagasse [178] and optimization of a method for the determination of metals from palm oil by flame atomic absorption spectrometry [182].…”

Section: Application Of Mixture Design In Other Areasmentioning

confidence: 99%

Recent Applications of Mixture Designs in Beverages, Foods, and Pharmaceutical Health: A Systematic Review and Meta-Analysis

Galvan

Effting

Cremasco

et al. 2021

Foods

View full text Add to dashboard Cite

Design of Experiments (DoE) is a statistical tool used to plan and optimize experiments and is seen as a quality technology to achieve products excellence. Among the experimental designs (EDs), the mixture designs (MDs) stand out, being widely applied to improve conditions for processing, developing, or formulating novel products. This review aims to provide useful updated information on the capacity and diversity of MDs applications for the industry and scientific community in the areas of food, beverage, and pharmaceutical health. Recent works were selected following the Preferred Reporting Items for Systematic Review and Meta-Analyses statement (PRISMA) flow diagram. Data analysis was performed by self-organizing map (SOM) to check and understand which fields of application/countries/continents are using MDs. Overall, the SOM indicated that Brazil presented the largest number of works using MDs. Among the continents, America and Asia showed a predominance in applications with the same amount of work. Comparing the MDs application areas, the analysis indicated that works are prevalent in food and beverage science in the American continent, while in Asia, health science prevails. MDs were more used to develop functional/nutraceutical products and the formulation of drugs for several diseases. However, we briefly describe some promising research fields in that MDs can still be employed.

show abstract

“…For this reason, sensitive and reliable techniques are required to carry out the elemental analysis of this kind of samples. Thus, some spectrometric techniques, such as flame atomic absorption spectrometry (FAAS), 7 electrothermal atomic absorption spectrometry (ETAAS) 8 and inductively coupled plasma optical emission spectrometry (ICP-OES) 9 are normally used when the elemental concentration is included in the mg kg -1 range; whereas for elements present at lower concentrations (µg kg -1 ), techniques with a better sensitivity are needed such as inductively coupled plasma mass spectrometry (ICP-MS). 10 Apart from spectrometric techniques, electrochemical methods have also been applied.…”

Section: Introductionmentioning

confidence: 99%

Multielemental analysis of vegetable oils and fats by means of ICP-OES following a dilution and shot methodology

Martínez

Sánchez

Lefevre

et al. 2020

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

show abstract

Use of Constrained Mixture Design in the Optimization of a Method Based on Extraction Induced by Emulsion Breaking for the Determination of Ca, Mg, Mn, Fe and Zn from Palm Oil by Flame Atomic Absorption Spectrometry

Cited by 7 publications

References 16 publications

Evaluation of Extraction Induced by Emulsion Breaking for Ni and V Extraction from Off-Shore Brazilian Crude Oils

Evaluation of Extraction Induced by Emulsion Breaking for Ni and V Extraction from Off-Shore Brazilian Crude Oils

Recent Applications of Mixture Designs in Beverages, Foods, and Pharmaceutical Health: A Systematic Review and Meta-Analysis

Multielemental analysis of vegetable oils and fats by means of ICP-OES following a dilution and shot methodology

Contact Info

Product

Resources

About