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微細藻類と炭酸脱水酵素によるCO2回収・利用：機会、課題、今後の方向性

Carbon Capture and Utilization Through Microalgae and Carbonic Anhydrases: Opportunities, Challenges and Future Directions (原題)

Alfonso Ferrara, Paola Imbimbo, Rocco Acciaio, Vincenzo Massimiliano Vivenzio, Simona Maria Monti, Daria Maria Monti

Biomolecules📚 査読済 / ジャーナル2026-09-23#CCUSOrigin: EU対象セクター: cross_sector
DOI: 10.3390/biom16101388
原典: https://doi.org/10.3390/biom16101388

🤖 gxceed AI 要約

日本語

本総説は、CCS・CCUS・CCUの主要な炭素管理経路を概観し、微細藻類と炭酸脱水酵素（CA）を基盤とする生物学的CCU（bio-CCU）に焦点を当てる。CAはCO2水和を促進する高効率な生体触媒であり、酵素固定化技術と担体材料の進展が安定性・再利用性・プロセス性能を高める可能性を示す。固定化CAと微細藻類培養の統合は、無機炭素供給を促進し光合成固定とバイオマス生産を高める新興戦略として論じられる。

English

This review surveys carbon management pathways (CCS, CCUS, CCU) with a focus on biological CCU using microalgae and carbonic anhydrases (CAs). It examines enzyme immobilization advances and support materials that improve CA stability, reusability, and performance. Integrating immobilized CAs with microalgal cultivation is presented as an emerging route to enhance inorganic carbon availability, photosynthetic fixation, and biomass productivity for sustainable CO2 valorization.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本はCCUS・カーボンリサイクルをGX政策の柱に位置づけており、本総説は微細藻類・酵素利用という生物学的CCUの技術選択肢を提示する。ただし現時点では基礎研究段階であり、SSBJ開示や投資家対応に直結する内容ではない。

In the global GX context

Globally, CCUS is a key pillar of net-zero pathways and transition finance taxonomies, and bio-CCU with microalgae offers a nature-aligned carbon utilization route. This review contributes to the technology-side evidence base that underpins corporate decarbonization strategies and CDR accounting discussions, though it remains pre-commercial.

👥 読者別の含意

🔬研究者:酵素固定化と微細藻類培養の統合に関する最新動向を整理し、bio-CCU研究の設計指針を与える。

🏢実務担当者:CCUS・カーボンリサイクル事業の技術オプションとして生物学的CCUの可能性と成熟度を把握できる。

🏛政策担当者:GX政策におけるCCUS技術ポートフォリオのうち、生物学的CCUの位置づけと研究支援の必要性を示唆する。

📄 Abstract（原文）

The continuous increase in carbon dioxide (CO2) has intensified the need for sustainable technologies to mitigate greenhouse gas emissions. Carbon Capture and Utilization (CCU) represents a promising strategy to convert captured CO2 into valuable products, contributing to climate change mitigation and the circular economy. This review provides an overview of the main carbon management pathways, including Carbon Capture and Storage (CCS), Carbon Capture, Utilization and Storage (CCUS), and CCU, with a focus on biological CCU (bio-CCU) based on microalgae and carbonic anhydrases (CAs). Particular attention is given to the role of CAs as highly efficient biocatalysts that accelerate CO2 hydration, enhancing inorganic carbon availability. Recent advances in enzyme immobilization technologies and support materials are examined, highlighting their potential to improve enzyme stability, reusability, and process performance. Furthermore, the integration of immobilized CAs with microalgal cultivation systems is explored as an emerging strategy in which CAs facilitate inorganic carbon availability and delivery, potentially enhancing its photosynthetic fixation by microalgae and biomass productivity. Building on previous studies on microalgal bio-CCU and CA-assisted carbon capture, this review provides an integrated perspective on CA immobilization strategies, support materials, and their potential implementation in microalgal bio-CCU systems, highlighting how enzyme immobilization can connect enzymatic CO2 conversion with microalgal carbon fixation and contribute to sustainable CO2 valorization and environmental remediation.

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