Enrichment of tocols from rice germ oil using supercritical carbon dioxide

Soon Nam Ko; Tae Yeoul Ha; Seung In Hong; Sung Won Yoon; Junsoo Lee; Yangha Kim; In Hwan Kim

doi:10.1111/j.1365-2621.2011.02905.x

Enrichment of tocols from rice germ oil using supercritical carbon dioxide

Soon Nam Ko, Tae Yeoul Ha, Seung In Hong, Sung Won Yoon, Junsoo Lee, Yangha Kim, In Hwan Kim

Department of Nutritional Science & Food Management

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

An efficient process was developed for enrichment of tocols from rice germ oil (RGO) using supercritical carbon dioxide (SC-CO ₂). Tocols were efficiently enriched in residue by removal of fatty acid methyl ester from the esterified RGO using SC-CO ₂. The enrichment of tocols was carried out at an operating pressure of 12.4-15.8MPa, an operating temperature of 40-60°C and a carbon dioxide flow rate of 5.0Lmin ^-1. The combination of 13.8MPa pressure and 60°C temperature was selected as the most suitable for efficient enrichment of tocols. The level of tocols (1270mg/100g) in the residue obtained at these operating conditions was six times higher than the tocols level (192mg/100g) of the starting material, namely esterified RGO. There were no significant differences in relative percentages of tocols homologues between esterified RGO and the residue obtained by SC-CO ₂ extraction.

Original language	English
Pages (from-to)	761-767
Number of pages	7
Journal	International Journal of Food Science and Technology
Volume	47
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2621.2011.02905.x
State	Published - Apr 2012

Keywords

Enrichment
Rice germ oil
Supercritical carbon dioxide
Tocols
Tocopherol
Tocotrienol

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10.1111/j.1365-2621.2011.02905.x

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title = "Enrichment of tocols from rice germ oil using supercritical carbon dioxide",

abstract = "An efficient process was developed for enrichment of tocols from rice germ oil (RGO) using supercritical carbon dioxide (SC-CO 2). Tocols were efficiently enriched in residue by removal of fatty acid methyl ester from the esterified RGO using SC-CO 2. The enrichment of tocols was carried out at an operating pressure of 12.4-15.8MPa, an operating temperature of 40-60°C and a carbon dioxide flow rate of 5.0Lmin -1. The combination of 13.8MPa pressure and 60°C temperature was selected as the most suitable for efficient enrichment of tocols. The level of tocols (1270mg/100g) in the residue obtained at these operating conditions was six times higher than the tocols level (192mg/100g) of the starting material, namely esterified RGO. There were no significant differences in relative percentages of tocols homologues between esterified RGO and the residue obtained by SC-CO 2 extraction.",

keywords = "Enrichment, Rice germ oil, Supercritical carbon dioxide, Tocols, Tocopherol, Tocotrienol",

author = "Ko, {Soon Nam} and Ha, {Tae Yeoul} and {In Hong}, Seung and Yoon, {Sung Won} and Junsoo Lee and Yangha Kim and Kim, {In Hwan}",

year = "2012",

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doi = "10.1111/j.1365-2621.2011.02905.x",

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AU - Ko, Soon Nam

AU - Ha, Tae Yeoul

AU - In Hong, Seung

AU - Yoon, Sung Won

AU - Lee, Junsoo

AU - Kim, Yangha

AU - Kim, In Hwan

PY - 2012/4

Y1 - 2012/4

N2 - An efficient process was developed for enrichment of tocols from rice germ oil (RGO) using supercritical carbon dioxide (SC-CO 2). Tocols were efficiently enriched in residue by removal of fatty acid methyl ester from the esterified RGO using SC-CO 2. The enrichment of tocols was carried out at an operating pressure of 12.4-15.8MPa, an operating temperature of 40-60°C and a carbon dioxide flow rate of 5.0Lmin -1. The combination of 13.8MPa pressure and 60°C temperature was selected as the most suitable for efficient enrichment of tocols. The level of tocols (1270mg/100g) in the residue obtained at these operating conditions was six times higher than the tocols level (192mg/100g) of the starting material, namely esterified RGO. There were no significant differences in relative percentages of tocols homologues between esterified RGO and the residue obtained by SC-CO 2 extraction.

AB - An efficient process was developed for enrichment of tocols from rice germ oil (RGO) using supercritical carbon dioxide (SC-CO 2). Tocols were efficiently enriched in residue by removal of fatty acid methyl ester from the esterified RGO using SC-CO 2. The enrichment of tocols was carried out at an operating pressure of 12.4-15.8MPa, an operating temperature of 40-60°C and a carbon dioxide flow rate of 5.0Lmin -1. The combination of 13.8MPa pressure and 60°C temperature was selected as the most suitable for efficient enrichment of tocols. The level of tocols (1270mg/100g) in the residue obtained at these operating conditions was six times higher than the tocols level (192mg/100g) of the starting material, namely esterified RGO. There were no significant differences in relative percentages of tocols homologues between esterified RGO and the residue obtained by SC-CO 2 extraction.

KW - Enrichment

KW - Rice germ oil

KW - Supercritical carbon dioxide

KW - Tocols

KW - Tocopherol

KW - Tocotrienol

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JO - International Journal of Food Science and Technology

JF - International Journal of Food Science and Technology

IS - 4

ER -

Enrichment of tocols from rice germ oil using supercritical carbon dioxide

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Keywords

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