Research Institute for Bioscience Products & Fine Chemicals, Ajinomoto Co., Inc. 1-1, Suzuki-Cho, Kawasaki-Ku, Kawasaki-shi, Kanagawa 210-8681, Japan.
Green Business Development Dept. Corporate Division, Ajinomoto Co., Inc. 15-1, Kyobashi 1-chome, Chuo-ku, Tokyo 104-8315, Japan.
Food Chem. 2024 Dec 1;460(Pt 3):140723. doi: 10.1016/j.foodchem.2024.140723. Epub 2024 Aug 2.
Kappaphycus alvarezii is the most widely cultivated seaweed globally. The use of the protein contained in K. alvarezii as an alternative protein source seems to be an effective countermeasure against the protein crisis. Here, we identified the iodine chemical species in K. alvarezii and developed an iodine reduction method. We used various fractionation methods and showed that almost all the iodine in the K. alvarezii alkali extract is present as an iodinated protein, and reducing the amount of iodine per protein was difficult. Subsequently, an iodine reduction method was established to cleave the covalent bonds between the protein and iodine, and we could successfully reduce the amount of iodine per protein by approximately half.
麒麟菜是全球范围内广泛种植的海藻。利用麒麟菜中含有的蛋白质作为替代蛋白质来源，似乎是应对蛋白质危机的有效对策。在这里，我们鉴定了麒麟菜中的碘化学物质，并开发了一种碘还原方法。我们使用了各种分级方法，表明麒麟菜碱提取物中的几乎所有碘都以碘化蛋白的形式存在，并且降低每个蛋白质中的碘含量很困难。随后，建立了一种碘还原方法来切断蛋白质和碘之间的共价键，我们可以成功地将每个蛋白质中的碘含量降低约一半。
