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Relationship between the Particle Size and the Oxidative Stability of Aqueous Emulsion Prepared from Triacylglycerol Rich in Docosahexaenoic Acid
https://oacis.repo.nii.ac.jp/records/2000717
https://oacis.repo.nii.ac.jp/records/200071790c42f0e-9e67-4622-9fb5-b14921b4737d
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||||
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| 公開日 | 2025-10-20 | |||||||||||||||||||
| タイトル | ||||||||||||||||||||
| タイトル | Relationship between the Particle Size and the Oxidative Stability of Aqueous Emulsion Prepared from Triacylglycerol Rich in Docosahexaenoic Acid | |||||||||||||||||||
| 言語 | en | |||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||
| キーワード | ||||||||||||||||||||
| 主題 | oxidative stability, particle size, DHA, emulsion, surface | |||||||||||||||||||
| 資源タイプ | ||||||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||||
| アクセス権 | ||||||||||||||||||||
| アクセス権 | open access | |||||||||||||||||||
| 著者 |
Sato-Ishizaki, Yumi
× Sato-Ishizaki, Yumi
× Iguchi, Atsuhiro
× Someya, Keita
× Kusumoto, Ibuki
× Kato, Shunji
× Nakagawa, Kiyotaka
× Gotoh, Naohiro
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| 書誌情報 |
en : Journal of Oleo Science 巻 74, 号 8, p. 729-737, 発行日 2025 |
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| 抄録 | ||||||||||||||||||||
| 内容記述 | The oxidative stability of polyunsaturated fatty acid (PUFA) generally decreases with increasing unsaturation, however, the opposite results have been reported for aqueous emulsions prepared from PUFA. One study showed that among PUFA (fish oil) emulsions with varying μm-sized particles, the smaller emulsions had better oxidation stability. Thus, particle size may be involved in the mechanism behind the improved oxidative stability of PUFA by emulsification, and PUFA emulsions with even smaller particle sizes (i.e., nm-sized) may exhibit higher stability. To evaluate these hypotheses, once optimizing conditions under which emulsions with different sizes (100-250 nm) can be prepared using docosahexaenoic acid (DHA)-rich algal oil (DAO), these emulsions were subjected to thermal oxidation (40°C, 5 days under light shielding). Based on peroxide value (POV) data, it is apparent that even DHA, which is particularly prone to oxidation, becomes less susceptible to thermal oxidation when emulsified, and that smaller emulsions lead to greater oxidative stability. The high oxidation stability in the smallest emulsion remained high after removal of the antioxidants (tocopherols) from this emulsion. Considering these results together with preliminary data on triacylglycerol (TG) mono-hydroperoxides measured by high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS), the physical properties of the emulsion might account for the greater oxidative stability in smaller emulsions, probably due to the rapid termination of the oxidation reaction within the smaller particle in a more substrate-dense environment, rather than to the action of antioxidant tocopherols. Further research will hopefully lead to a solution to the longstanding problem of oxidation of PUFA such as DHA, which has a variety of benefits. | |||||||||||||||||||
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| 内容記述 | 公開日: 2025-08-01 | |||||||||||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||||||||||
| 収録物識別子 | 1345-8957 | |||||||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||||||
| 収録物識別子 | AA11503337 | |||||||||||||||||||
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| 関連タイプ | isVersionOf | |||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||||
| 関連識別子 | https://doi.org/10.5650/jos.ess25092 | |||||||||||||||||||
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| 関連識別子 | https://www.jstage.jst.go.jp/article/jos/74/8/74_ess25092/_article | |||||||||||||||||||
| 関連名称 | Publisher's Version/PDF (Open Access) | |||||||||||||||||||
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| 関連識別子 | https://jocs.jp/ | |||||||||||||||||||
| 関連名称 | 日本油化学会 | |||||||||||||||||||
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| 関連識別子 | https://jocs.jp/en/ | |||||||||||||||||||
| 関連名称 | Japan Oil Chemists' Society | |||||||||||||||||||
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| 出版者 | 日本油化学会 | |||||||||||||||||||
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| 出版者 | Japan Oil Chemists' Society | |||||||||||||||||||
