Cleaner separation-purification process to efficiently produce high-purity natural lipophilic phenolic compounds from by-products of vegetable oil refining

Hiromori, Kousuke; Sasayama, Tomone; Shibasaki‐Kitakawa, Naomi

doi:10.1016/j.jclepro.2018.04.012

Cited by 9 publications

(4 citation statements)

References 21 publications

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“…Samples were taken at speci c time intervals, and the V E H and FaH concentrations were measured. e analysis of each concentration was performed as reported previously (Hiromori et al, 2018).…”

Section: Batch Competitive Adsorption Experimentsmentioning

confidence: 99%

“…We proposed a novel method for recovering natural vitamin E via adsorption and desorption on an anion-exchange resin. It focused on the di erence in acidity of each component (Hiromori et al, 2016(Hiromori et al, , 2018. By relaxing the operating conditions and improving the separation selectivity, the yield and purity of vitamin E were signi cantly improved.…”

Section: Introductionmentioning

confidence: 99%

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Competitive Adsorption Model for Process Design of Separation and Recovery Method in Porous Type Anion-Exchange Resin

Hiromori

Kanuma

Shibasaki‐Kitakawa

2020

J. Chem. Eng. Japan / JCEJ

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To optimize operating conditions for separation and recovery method with a porous type anion-exchange resin, a competitive adsorption model was developed by considering mass transfer and ion-exchange reactions of each component. The model well described the concentration pro les adsorbed in the axial direction of the column packed with the resin, which are di cult to determine experimentally, in addition to the concentration pro les in the e uent from the column. The model was also able to predict optimum operating conditions to maximize the recovery yield of the target material and is e ective for the process design of the recovery method with the resin.

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Section: Batch Competitive Adsorption Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Competitive Adsorption Model for Process Design of Separation and Recovery Method in Porous Type Anion-Exchange Resin

Hiromori

Kanuma

Shibasaki‐Kitakawa

2020

J. Chem. Eng. Japan / JCEJ

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“…[ 8 ] Tocotrienols have been reported to have superior antioxidant activity than tocopherols, [ 9 ] but present lower thermal stability when compared to tocopherols. [ 10 ] Therefore, the operation for recovery of vitamin E from palm fatty acid distillate (PFAD) needs to prevent the degradation of their antioxidant molecules. In this scenario, molecular distillation is generally accepted as a safe method for separating and purifying thermolabile substances.…”

Section: Introductionmentioning

confidence: 99%

Esterification effect on the recovery of vitamin E from palm oil refining residues by molecular distillation

da Silva,

Maziero,

Ballus

et al. 2023

Can J Chem Eng

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Waste edible oils are an alternative source of high‐value natural compounds. Vitamin E can be recovered from palm oil refining residues by molecular distillation. However, the presence of other lipophilic molecules compromises the selective separation of vitamin E. Esterification of the free fatty acids can enhance the selective separation of vitamin E by molecular distillation, but the conditions for carrying out the reaction need to be investigated to simultaneously ensure the conversion of free fatty acids and the reduction of vitamin E losses. Thus, this study investigated the effect of the esterification of the industrial waste on the recovery of vitamin E by molecular distillation. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and analysis for fats and oils preconized by the American Oil Chemists' Society (AOCS) were used in the characterization of the industrial waste. Determination of the best condition to carry out the reaction was obtained by a central composite rotational design (CCRD) using the response surface methodology (RSM) and the desirability profile. The results showed that the best condition for the esterification was at 64°C, 213 min, 2 wt.% sulphuric acid, and a 10/1 methanol/free fatty acids molar ratio. This reaction condition achieved 97.9% conversion of free fatty acids and less than 3% of vitamin E loss. The esterification promoted concentration of vitamin E in the residue stream (145.4%) and reduction in the distillate stream (87.8%). Therefore, the obtained results presented a suitable route to obtaining vitamin E concentrate and adding value to an industrial residue.

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“…Compared with the conventional pretreatment methods, supercritical methanol has less methanol consumption and less pollution, but further processing is required to obtain tocopherols products. In addition, the solvents extraction 13,14 and ion-exchange resin 15 have been also reported to purify natural tocopherols. Notably, almost all of the above methods need to pretreatment of the deodorizer distillate, that is, esterification of free fatty acids with methanol to reduce the boiling point of free fatty acids and the viscosity of the whole system.…”

Section: Introductionmentioning

confidence: 99%

Extraction of Tocopherol from Soybean Oil Deodorizer Distillate by Deep Eutectic Solvents

Liu

2019

J. Oleo Sci.

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Cleaner separation-purification process to efficiently produce high-purity natural lipophilic phenolic compounds from by-products of vegetable oil refining

Cited by 9 publications

References 21 publications

Competitive Adsorption Model for Process Design of Separation and Recovery Method in Porous Type Anion-Exchange Resin

Competitive Adsorption Model for Process Design of Separation and Recovery Method in Porous Type Anion-Exchange Resin

Esterification effect on the recovery of vitamin E from palm oil refining residues by molecular distillation

Extraction of Tocopherol from Soybean Oil Deodorizer Distillate by Deep Eutectic Solvents

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