Fixation and stability enhancement of beta-carotene by organo-modified mesoporous silica
| Autor: | Masashi Shibata, Yoshiumi Kohno, Yasuhisa Maeda, Yasumasa Tomita, Yasushi Kato, Kenkichiro Kobayashi, Choji Fukuhara |
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| Rok vydání: | 2016 |
| Předmět: |
Characterisation of pore space in soil
02 engineering and technology photostability 010402 general chemistry 01 natural sciences Organic chemistry General Materials Science mesoporous silica Alkyl chemistry.chemical_classification organo-modification Chemistry Elution Visible light irradiation General Chemistry Mesoporous silica 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Solvent Mesoporous organosilica beta-carotene Chemical engineering Mechanics of Materials physical mixture 0210 nano-technology Mesoporous material |
| Zdroj: | Microporous and Mesoporous Materials. 220:1-6 |
| ISSN: | 1387-1811 |
| DOI: | 10.1016/j.micromeso.2015.08.019 |
| Popis: | β-carotene is one of naturally occurring dyes, and has been used as a colorant because of its nontoxicity and biological functions. However, the color stability of the β-carotene is not sufficient. The aim of this study is to enhance the stability of the β-carotene by incorporation into the pore of mesoporous silica. Although the highly lipophilic β-carotene does not generally meet rather hydrophilic inner pore space of mesoporous silica, the modification of the inner pore by alkyl chains enables the incorporation of the β-carotene into the mesopore. The incorporated β-carotene is successfully stabilized against visible light irradiation. Also improved is the durability of the dye in the composite sample against elution to the solvent. The effect of the complexation on the stability enhancement depends on the affinity of the lipophilic β-carotene to the organo-modified inner pore space. |
| Databáze: | OpenAIRE |
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