Decolorization of vegetable oils: Adsorption mechanism of β-carotene on acid-activated sepiolite

Sabah, Eyüp; Çınar, Mustafa; Çelik, M.S.

doi:10.1016/j.foodchem.2005.12.052

Cited by 91 publications

(82 citation statements)

References 37 publications

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“…According to Karabulut et al [22], the increase of activated carbon dosage provides more surface area for adsorption, but at a certain dosage was slow and subsequently is constant. Sabah et al [23] reported that dosage of 1% activated sepiolite could adsorb β-carotene more efficient, this caused the active centers of pore the activated carbon most occupied by molecules of β-carotene.…”

Section: Optimum Concentration Of Dac For Adsorption Of β-Carotenementioning

confidence: 99%

Adsorption of β-Carotene in Isopropyl Alcohol with Decolorized Activated Carbon as Model for β-Carotene Adsorption in Crude Palm Oil

et al. 2017

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Section: Optimum Concentration Of Dac For Adsorption Of β-Carotenementioning

confidence: 99%

Adsorption of β-Carotene in Isopropyl Alcohol with Decolorized Activated Carbon as Model for β-Carotene Adsorption in Crude Palm Oil

et al. 2017

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“…Silica and different clay minerals are widely utilized due to their good uptake capacity, surface properties, cost and ease of operation (Vera et al 2011;Rossi et al 2003). The clays used in oil purification include, for example, natural and acid-activated sepiolite (Sabah and Majdan 2009;Sabah et al 2007), palygorskite (Galan 1996) and attapulgite (Liu et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Phospholipid adsorption from vegetable oils on acid-activated sepiolite

et al. 2015

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In this study, adsorption of natural and model phospholipids (PL) from camelina and rapeseed oils on acid-activated sepiolite has been studied. Adsorption isotherms were determined for total phosphorus and for individual PL at different conditions. Influence of aciddegumming with citric acid as well as of type and ionic form of the phospholipid was investigated. The experimental data were correlated using the Moreau isotherm. The results show that neutral PLs, such as phosphatidylcholines, adsorb as ordered monolayers with molecular area of 1.3 nm 2 /molecule. Phosphatidic acids have similar adsorption capacity when in free acid form but the interaction with the clay surface is much weaker. Sodium salt gives substantially lower saturation capacity because of electrostatic repulsion between the adsorbed PL molecules and between PL and the clay surface. Calcium and magnesium salts have very low capacity and seem to be incapable to form any ordered structures on the clay surface.

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“…Moreover, impurities like free fatty acids, phospholipids and traces of metals were reported [2] [3]. These impurities limit the preservation and uses of the oils.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of Decolourisation Conditions of Crude Shea (<i>Vitellaria paradoxa</i> Gaertner F) Butter: Black Type

Mohagir¹,

Bup²,

Abi³

et al. 2015

ACES

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In the present study, response surface methodology applying Doehlert experimental design was used to investigate decolourisation parameters of crude black shea butter. The decolourisation process was significantly influenced by three independent parameters: contact time, decolourisation temperature and adsorbent dose. The responses of the process were oil loss, acid value, peroxide value and colour index. Contour plots of the decolourisation responses were superimposed and well defined the optimum zone. The optimum decolourisation conditions were found to be: contact time (30 min), temperature (72˚C -95˚C) and adsorbent dosage (1.5 -2.5 mass %).

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Decolorization of vegetable oils: Adsorption mechanism of β-carotene on acid-activated sepiolite

Cited by 91 publications

References 37 publications

Adsorption of β-Carotene in Isopropyl Alcohol with Decolorized Activated Carbon as Model for β-Carotene Adsorption in Crude Palm Oil

Adsorption of β-Carotene in Isopropyl Alcohol with Decolorized Activated Carbon as Model for β-Carotene Adsorption in Crude Palm Oil

Phospholipid adsorption from vegetable oils on acid-activated sepiolite

Optimisation of Decolourisation Conditions of Crude Shea (<i>Vitellaria paradoxa</i> Gaertner F) Butter: Black Type

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Decolorization of vegetable oils: Adsorption mechanism of β-carotene on acid-activated sepiolite

Cited by 91 publications

References 37 publications

Adsorption of β-Carotene in Isopropyl Alcohol with Decolorized Activated Carbon as Model for β-Carotene Adsorption in Crude Palm Oil

Adsorption of β-Carotene in Isopropyl Alcohol with Decolorized Activated Carbon as Model for β-Carotene Adsorption in Crude Palm Oil

Phospholipid adsorption from vegetable oils on acid-activated sepiolite

Optimisation of Decolourisation Conditions of Crude Shea (&lt;i&gt;Vitellaria paradoxa&lt;/i&gt; Gaertner F) Butter: Black Type

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Product

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Optimisation of Decolourisation Conditions of Crude Shea (<i>Vitellaria paradoxa</i> Gaertner F) Butter: Black Type