論文 - 大島 達也
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Development of a Pillar[6]arene Carboxylic Acid Derivative for the Extraction of a Cationic Protein 査読あり
Y. Ikushima, T. Oshima
Biomacromolecules 26 ( 3 ) 1571 - 1579 2025年2月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Enhanced water dispersibility and permeability through a Caco-2 cell monolayer of β-cryptoxanthin extracted from kumquats by complexation with casein 査読あり
T. Oshima, K. Takahashi, A. Inada, M. Yamasaki, Y. Yamasaki, N. Eto
Food Chemistry 360 12982 2021年10月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Au(III) extraction using ketone compounds with physical properties superior to current commercial extractants 査読あり
T. Oshima, K. Miyake
AICHE Journal 67 e17214 2021年7月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Dominant factors that determine the dissolution state of complexes between poorly water-soluble ingredients and casein hydrolysate 査読あり
A. Inada, T. Iwase, T. Oshima
Colloids Surf. B 208 112062 2021年5月
担当区分：最終著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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膜乳化法を利用して調製したβ-クリプトキサンチン製剤の水分散性および細胞蓄積性の評価 査読あり
谷口 愛里沙, 越智 貴大, 大島 達也, 稲田 飛鳥, 赤木 剛, 山本 建次, 清水 正高
化学工学論文集 51 ( 1 ) 12 - 17 2025年1月
担当区分：責任著者 記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Effect of Acid Treatment on a λ-MnO2 Granulated Adsorbent for Adsorptive Recovery of Lithium 査読あり
T. Oshima, Y. Kadogawa, K. Shiraishi, K. Ohe, S. Nishihama, K. Yoshizuka
Solvent Extraction and Ion Exchange 43 79 - 93 2024年12月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Comprehensive extraction study using N,N-dioctylthiodiglycolamic acid: effect of S donor on metal extraction 査読あり
K. Shimojo, I. Fujiwara, T. Saito, T. Oshima
Analytical Sciences 40 1429 - 1436 2024年5月
担当区分：最終著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Separation of gallium(III) using 2-nonanone based on ion solvation in acidic chloride media 査読あり
Hashizume M., Oshima T., Inada A.
Separation and Purification Technology 335 126156 - 126156 2024年5月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Separation and Purification Technology
Gallium (Ga) is an indispensable electronic material for devices such as light-emitting diodes, and the demand for Ga is expected to increase. In this study, a comparative analysis was carried out on Ga(III) extraction by neutral ketones and ethers in the presence of highly concentrated hydrochloric acid (HCl). Generally, Ga(III) extractability was high using aliphatic and aromatic ketones. By comparison, Ga(III) extractability was lower using monoether compounds. High Ga(III) extractability was obtained using aromatic 1,2-diethers. Suitable solvents for Ga extraction were screened based on Hansen solubility parameters. 2-Nonanone (2-NON), an aliphatic ketone, was found to have a high extraction capacity (more than 95 mM) competitive with dibutyl carbitol. The physical properties of 2-NON a low water solubility (0.5 g dm−3), low viscosity (1.3 mPa·s), and a sufficiently high flash point (76 °C) are suitable for industrial processes. Ga(III) and Fe(III) were selectively extracted using 2-NON and other solvents. Ga(III) extracted using 2-NON was quantitatively stripped by contact with aqueous solutions with low HCl concentrations. 2-NON was used to separate Ga(III) from a mixed solution of metal ions to investigate recycling copper indium gallium diselenide solar cells. Ga(III) was selectively extracted from the mixture with over 90 % stripping. The concentrations of the metal ions in the stripping solutions were 1.0 mM for Cu(II), 9.9 mM for In(III), 56.7 mM for Ga(III), and 0.02 mM for Se(IV), suggesting that 2-NON can be used for Ga(III) separation.
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A Comparative Study of Extraction of Selenium(IV) Using Various Organic Solvents in Hydrochloric Acid Media 査読あり
T. Oshima, M. Hashizume, Y. Kawaguchi, N. Matsuo, K. Ohe, A. Inada
Solvent Extraction Research and Development, Japan 31 ( 2 ) 41 - 48 2024年4月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
DOI： 10.15261/serdj.31.41
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ヒト腸管上皮細胞モデル (Caco-2) におけるキンカン由来β-クリプトキサンチンの膜透過性に及ぼす麹菌発酵乳飲料の影響 査読あり
山﨑 有美, 河野 愛未, 松本 朋子, 大島 達也, 山﨑 正夫
日本食品科学工学会誌 71 ( 3 ) 83 - 91 2024年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nippon Shokuhin Kagaku Kogaku Kaishi
β-Cryptoxanthin is a type of carotenoid that contributes to the maintenance and improvement of human health. However, it is sensitive to heat during cooking and food processing. Furthermore, like other carotenoids, β-cryptoxanthin is also highly hydrophobic and does not readily solubilize in the gastrointestinal tract. This property results in its low bioaccessibility, and considerable knowledge has been accumulated on improving the bioavailability of β-cryptoxanthin. In this study, we evaluated the effects of different processing methods on the residual amount of β-cryptoxanthin in kumquats. The results showed that preparation of kumquat paste contained more β-cryptoxanthin than its puree. Next, when the paste was mixed with fermented Aspergillus oryzae milk, the β-cryptoxanthin content did not change. A pasteurization study of the kumquat paste mixed with the fermented milk showed that β-cryptoxanthin was more stable at 65 °C than at 85 °C. In addition, to improve the bioaccessibility of β-cryptoxanthin, a mixture of the fermented milk and kumquat-derived β-cryptoxanthin was evaluated using a human intestinal epithelial Caco-2 cell model. The results showed that β-cryptoxanthin in the mixture permeated the membrane 14 times more than β-cryptoxanthin alone.
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Effect of Interlayer Anions with NiZn Hydroxy Double Salts on Adsorption of Selenite, Selenate and Arsenate 査読あり
K. Ohe, R. Tabuchi, T. Oshima
Journal of Robotics, Networking and Artificial Life 10 ( 4 ) 294 - 298 2024年
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Water-Based Synthesis of β-Sheet-Like Supramolecular Metallohydrogel Organized by Using a Native Ultrashort Peptide Sequence 査読あり
A. Inada, A. Motomura, T. Oshima
Chemistry – A European Journal 30 ( 11 ) e202303160 - e202303160 2023年11月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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消化ペプチドとの複合化によるβ-クリプトキサンチンの水分散性およびCaco-2細胞膜透過性の改善 査読あり
稲田 飛鳥, 野崎 唯那, 澤尾 綾音, 大島 達也
化学工学論文集 49 ( 6 ) 170 - 174 2023年11月
担当区分：責任著者 記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Kagaku Kogaku Ronbunshu
β-cryptoxanthin (BCX) is a type of carotenoid found in citrus fruits and has been reported to promote bone metab-olism and stimulate immunity. In this study, a complex between BCX and digested peptides (PepCas) was prepared to improve the water dispersibility of BCX. PepCas was obtained by enzymatic degradation of casein. The complex (BCX@ PepCas) was prepared by mixing an ethanol solution of BCX and an aqueous solution of PepCas, followed by lyophiliza-tion. The apparent solubility of BCX under neutral conditions increased with increasing PepCas concentration. To eval-uate the enhancement of oral bioavailability of BCX by the complexation, a cell membrane permeation test was con-ducted using a monolayer of Caco-2 cells. After pseudo-digestion, BCX in a blank sample was not permeated at all. In contrast, the permeation of BCX in BCX@PepCas was observed after 24 h. These results suggest that the complexation with PepCas improves the water dispersibility of BCX, resulting in the enhanced oral bioavailability of BCX.
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Relationship between extraction of arsenic via ion solvation and Hansen solubility parameters of extractants 査読あり
N. Matsuo, K. Ohe, T. Oshima, K. Yoshizuka
Solvent Extraction and Ion Exchange 41 940 - 957 2023年9月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Development of solvents for Au(III) extraction in hydrochloric acid media based on ion solvation with reference to the Hansen solubility parameters: Success of dicyclohexylketone 査読あり
T. Oshima, Y. Iwakiri, A. Inada
Hydrometallugy 220 106106 - 106106 2023年6月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Development of amphip hilic short peptides changing drug inclusivity by metal complexation reactions 査読あり
A. Inada, M. Hitotsumatsu, T. Oshima
Journal of Chemical Engineering of Japan 56 2219291 - 2219291 2023年6月
担当区分：責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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Extraction of Metal Ions Using a Calix[4]arene Carboxylic Acid Derivative in Aromatic Ethers 査読あり 国際共著
T. Oshima, T. Asano, T. Ishibashi, K. Ohe, K. Ohto, Jumina
Solvent Extraction Research and Development, Japan 30 ( 1 ) 59 - 69 2023年5月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
DOI： 10.15261/serdj.30.59
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Extraction of Au(III) using aromatic ketones in acidic chloride media 査読あり
T. Oshima, K. Miyake, M. Hashizume, A. Inada
Solvent Extraction Research and Development, Japan 30 ( 2 ) 129 - 136 2023年5月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌）
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T. Oshima, T. Ishibashi, K. Ohto
Journal of Inclusion Phenomena and Macrocyclic Chemistry 103 71 - 79 2023年1月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Inclusion Phenomena and Macrocyclic Chemistry
Calixarene derivatives are excellent host compounds for ionic species in liquid–liquid extraction. However, many studies using calixarene derivatives have been conducted using highly toxic chloroform as a solvent because of their poor solubility in typical hydrocarbons. In the present study, aromatic ethers were developed as solvents for calixarene derivatives to enhance their industrial applicability. The solubility of the calix[6]arene carboxylic acid derivative tOct[6]CH2COOH in 1-octoxybenzene (OB) and 1-butoxybenzene (BB) was 11.3 mM and 24.9 mM, respectively. The cationic guest molecule tryptophan methyl ester was extracted using the tOct[6]CH2COOH host in OB and BB. The cationic lysine-rich protein cytochrome c was also extracted using tOct[6]CH2COOH in BB as shown for tOct[6]CH2COOH in chloroform in previous studies. However, cytochrome c was not extracted using tOct[6]CH2COOH in OB and instead, precipitated. As tOct[6]CH2COOH stabilizes the ammonium group of biomolecules because of its suitable cavity size, the extraction of the tryptophan ester and cytochrome c using tOct[6]CH2COOH was much higher than those using the corresponding calix[4]arene and calix[8]arene derivatives. These results confirm that aromatic ethers are potential solvents for calixarene derivatives for the extraction of biomolecules.
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Shimojo K., Fujiwara I., Oshima T., Yokoyama K., Yaita T.
Analytical Sciences 38 ( 7 ) 1003 - 1006 2022年7月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Analytical Sciences
Liquid–liquid extraction of lanthanide (Ln) ions was investigated using N,N-dioctylthiodiglycolamic acid (DOTDGAA), which is a sulfur donor ligand with an amide group and a carboxyl group connected by a thioether chain. The extraction performance and selectivity of DOTDGAA for Ln ions were compared with those of N,N-dioctyldiglycolamic acid (DODGAA), which is also an oxygen donor ligand with a similar chemical structure, to assess the effect of the soft/hard donor atom on Ln separation. DOTDGAA quantitatively extracted all Ln ions while being selective toward the light and middle Ln ions, in contrast to the selectivity of DODGAA for heavier Ln ions. Slope analysis demonstrated that the Ln3+ transfer using DOTDGAA proceeded through a proton-exchange reaction, forming a 1:3 complex, Ln(DOTDGAA)3. The back-extraction of Ln ions from the extracting phase was successfully achieved under acidic conditions. Graphical abstract: [Figure not available: see fulltext.]