Publication

Computation of the fraction of induced cells in enzyme induction systems

Urs von Stockar
1977
Journal Articles

Abstract

A theor. model is developed for continuous multistage enzyme prodn. systems, which consist of a growth fermentor used for growing microorganisms rapidly without enzyme prodn. and a subsequent system of induction reactors in which enzyme induction and prodn. occurs. The model allows the computation of the fraction of induced cells residing in the induction reactors for organisms exhibiting a lag phase in enzyme induction. For this model a general anal. soln. was obtained for the cumulative internal residence time distribution of a series of n well-stirred vessels with a recycle. The theor. results are compared in a preliminary way with experimentally measured cellulase [9012-54-8] productivities of continuous multistage cellulose fermns. with Trichoderma viride QM 9414. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/fab1a2be-7da4-43ec-8dcb-d4bb043a6432

About this result

This page is automatically generated and may contain information that is not correct, complete, up-to-date, or relevant to your search query. The same applies to every other page on this website. Please make sure to verify the information with EPFL's official sources.

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Urs von Stockar
1977
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/fab1a2be-7da4-43ec-8dcb-d4bb043a6432

About this result

Related concepts (31)

Induced pluripotent stem cell

Induced pluripotent stem cells (also known as iPS cells or iPSCs) are a type of pluripotent stem cell that can be generated directly from a somatic cell. The iPSC technology was pioneered by Shinya Yamanaka and Kazutoshi Takahashi in Kyoto, Japan, who together showed in 2006 that the introduction of four specific genes (named Myc, Oct3/4, Sox2 and Klf4), collectively known as Yamanaka factors, encoding transcription factors could convert somatic cells into pluripotent stem cells.

Stem cell

In multicellular organisms, stem cells are undifferentiated or partially differentiated cells that can differentiate into various types of cells and proliferate indefinitely to produce more of the same stem cell. They are the earliest type of cell in a cell lineage. They are found in both embryonic and adult organisms, but they have slightly different properties in each. They are usually distinguished from progenitor cells, which cannot divide indefinitely, and precursor or blast cells, which are usually committed to differentiating into one cell type.

Enzyme

Enzymes (ˈɛnzaɪmz) are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. Almost all metabolic processes in the cell need enzyme catalysis in order to occur at rates fast enough to sustain life. Metabolic pathways depend upon enzymes to catalyze individual steps.

Related publications (1)

Computation of the fraction of induced cells in enzyme induction systems

Chat with Graph Search

Mechanisms of gene regulation by SRCAP and H2A.Z