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实现国产替代!天津工生所张以恒团队:纤维素100%变淀粉的全碳素合成突破!
Core Viewpoint - The article discusses a significant breakthrough in the synthesis of starch from cellulose, which is crucial for food security and industrial applications. The new method achieves a theoretical starch yield of 100%, addressing carbon loss issues and enhancing the potential for industrial-scale production [2][3]. Summary by Sections Breakthrough in Starch Synthesis - The research team led by Zhang Yiheng at the Tianjin Institute of Industrial Biotechnology has restructured the synthesis pathway to achieve full carbon utilization in starch production from cellulose [3]. - A new glucose recovery and activation mechanism has been designed, increasing the theoretical starch yield from 50% to 100% [3]. - The stability of enzyme components has been improved, allowing the reaction temperature to rise to 50°C, which enhances enzyme activity and reduces the amount of enzyme needed per unit output [3]. Efficiency and Application - The actual conversion rate of cellulose to starch has been raised to 93.3%, producing ultra-pure amylose with a highly controllable polymerization degree and narrow molecular weight distribution [3]. - This ultra-pure amylose has unique applications in the food, pharmaceutical, and materials sectors, including its use as a chiral separation filler for efficiently separating chiral drug molecules like thalidomide [3]. Expert Opinions - Academics have praised the research as a new breakthrough in synthetic biology, highlighting its potential to address food security and non-grain biomass manufacturing [4]. - The work has received support from national key research and development programs and has been published in the National Science Review [4]. Future Events - The article mentions the upcoming NFUCon 2025 forum, which will focus on the high-value utilization of non-grain biomass, featuring discussions on various strategic directions in biomass technology [5][7].