Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption Isotherms
<i>Idesia polycarpa</i> Maxim. is a woody oil crop with great potential for edible oil production. While crude oil is rich in pigments, traditional bleaching methods have limited effectiveness in improving its color. In this study, a metal-organic framework (MOF) material, MIL-88B(Fe), w...
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2025-02-01
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| author | Yiyang Dong Chengming Wang Yu Gao Jing Xu Hongzheng Ping Fangrong Liu Aifeng Niu |
| author_facet | Yiyang Dong Chengming Wang Yu Gao Jing Xu Hongzheng Ping Fangrong Liu Aifeng Niu |
| author_sort | Yiyang Dong |
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| description | <i>Idesia polycarpa</i> Maxim. is a woody oil crop with great potential for edible oil production. While crude oil is rich in pigments, traditional bleaching methods have limited effectiveness in improving its color. In this study, a metal-organic framework (MOF) material, MIL-88B(Fe), was synthesized and used for the bleaching of <i>Idesia polycarpa</i> Maxim. oil. The adsorption selectivity of MIL-88B(Fe) and the adsorption process of carotenoids and chlorophyll were investigated. The results demonstrated that the synthesized MIL-88B(Fe) exhibited excellent bleaching capability, achieving a bleaching rate of 97.67% in 65 min. It showed a strong adsorption effect on pigments, particularly carotenoids. The content of lutein decreased from 118.27 mg/kg to 0.01 mg/kg after 65 min of bleaching. The squalene and phytosterol contents in the oil were minimally affected by the bleaching process, while the free fatty acid content slightly increased due to the high reaction temperature and the adsorbent properties. The adsorption process of MIL-88B(Fe) was best described by a pseudo-first-order kinetic model, indicating that the adsorption was a spontaneous and endothermic chemical process. Moreover, MIL-88B(Fe) demonstrated good safety and reusability, making it a promising novel adsorbent for the bleaching of <i>Idesia polycarpa</i> Maxim. oil and other oils with a high pigment content for the vegetable oil industry. |
| format | Article |
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| issn | 2304-8158 |
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| publishDate | 2025-02-01 |
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| spelling | doaj-art-90f043e755454cf99596acd5703daebe2025-08-20T02:05:18ZengMDPI AGFoods2304-81582025-02-0114578710.3390/foods14050787Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption IsothermsYiyang Dong0Chengming Wang1Yu Gao2Jing Xu3Hongzheng Ping4Fangrong Liu5Aifeng Niu6College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, ChinaCollege of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China<i>Idesia polycarpa</i> Maxim. is a woody oil crop with great potential for edible oil production. While crude oil is rich in pigments, traditional bleaching methods have limited effectiveness in improving its color. In this study, a metal-organic framework (MOF) material, MIL-88B(Fe), was synthesized and used for the bleaching of <i>Idesia polycarpa</i> Maxim. oil. The adsorption selectivity of MIL-88B(Fe) and the adsorption process of carotenoids and chlorophyll were investigated. The results demonstrated that the synthesized MIL-88B(Fe) exhibited excellent bleaching capability, achieving a bleaching rate of 97.67% in 65 min. It showed a strong adsorption effect on pigments, particularly carotenoids. The content of lutein decreased from 118.27 mg/kg to 0.01 mg/kg after 65 min of bleaching. The squalene and phytosterol contents in the oil were minimally affected by the bleaching process, while the free fatty acid content slightly increased due to the high reaction temperature and the adsorbent properties. The adsorption process of MIL-88B(Fe) was best described by a pseudo-first-order kinetic model, indicating that the adsorption was a spontaneous and endothermic chemical process. Moreover, MIL-88B(Fe) demonstrated good safety and reusability, making it a promising novel adsorbent for the bleaching of <i>Idesia polycarpa</i> Maxim. oil and other oils with a high pigment content for the vegetable oil industry.https://www.mdpi.com/2304-8158/14/5/787<i>Idesia polycarpa</i> Maxim. oilbleachingMOFMIL-88B(Fe)adsorption kinetics and isotherms |
| spellingShingle | Yiyang Dong Chengming Wang Yu Gao Jing Xu Hongzheng Ping Fangrong Liu Aifeng Niu Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption Isotherms Foods <i>Idesia polycarpa</i> Maxim. oil bleaching MOF MIL-88B(Fe) adsorption kinetics and isotherms |
| title | Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption Isotherms |
| title_full | Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption Isotherms |
| title_fullStr | Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption Isotherms |
| title_full_unstemmed | Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption Isotherms |
| title_short | Bleaching of <i>Idesia polycarpa</i> Maxim. Oil Using a Metal-Organic Framework-Based Adsorbent: Kinetics and Adsorption Isotherms |
| title_sort | bleaching of i idesia polycarpa i maxim oil using a metal organic framework based adsorbent kinetics and adsorption isotherms |
| topic | <i>Idesia polycarpa</i> Maxim. oil bleaching MOF MIL-88B(Fe) adsorption kinetics and isotherms |
| url | https://www.mdpi.com/2304-8158/14/5/787 |
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