Department of Biological Engineering, Utah State University, Logan, Utah 84322-4105, United States.
Department of Electrical and Computer Engineering, Utah State University, Logan, Utah 84322-4120, United States.
ACS Synth Biol. 2021 Aug 20;10(8):1992-2001. doi: 10.1021/acssynbio.1c00163. Epub 2021 Jul 8.
Although engineered microbial production of natural compounds provides a promising alternative method to plant production and extraction, the process can be inefficient and ineffective in terms of time and cost. To render microbial systems profitable and viable, the process must be optimized to produce as much product as possible. To this end, this work illustrates the construction of a new probabilistic computational model to simulate the microbial production of a well-known cardioprotective molecule, resveratrol, and the implementation of the model to enhance the yield of the product in . This model identified stilbene synthase as the limiting enzyme and informed the effects on changes in concentration and source of this enzyme. These parameters, when employed in a laboratory system, were able to improve the titer from 62.472 mg/L to 172.799 mg/L, demonstrating the model's ability to produce a useful simulation of a dynamic microbial resveratrol production system.
尽管工程微生物生产天然化合物为植物生产和提取提供了一种很有前途的替代方法,但就时间和成本而言,该过程可能效率低下且效果不佳。为了使微生物系统盈利和可行,必须对该过程进行优化,以尽可能多地生产产品。为此,这项工作说明了构建一个新的概率计算模型来模拟微生物生产一种众所周知的心脏保护分子白藜芦醇的过程,并实施该模型来提高在 中的产物产量。该模型确定了芪合酶为限制酶,并告知了改变该酶浓度和来源的影响。在实验室系统中使用这些参数,能够将滴度从 62.472mg/L 提高到 172.799mg/L,证明了该模型能够对动态微生物白藜芦醇生产系统进行有用的模拟。