Publication

Improved growth and methane production conditions for Methanobacterium thermoautotrophicum

Urs von Stockar
1990
Conference Papers

Abstract

M. thermoautotrophicum was grown on a defined mineral salts medium under strictly anaerobic conditions with H2 and CO2 as the sole energy and C source, resp. The cultivation medium was optimized with respect to inorg. components, including Se(IV), W(VI), N, Ni(II), Fe(II), Co(II), and Mo(VI). S2- concn. in the medium was maintained const. using an online regulatory system by the addn. of 0.5M Na2S. A max. supply rate of 0.6 VVM of a mixt. of 80% H2 and 20% CO2 was achieved for the gaseous substrates. Under these conditions, the max. sp. growth rate (m) was 0.30/h and the cell concn. reached 4.8 g cell dry wt./L, representing a 140% increase over previously published results, in

Official source

https://infoscience.epfl.ch/entities/publication/79caa66d-7985-410e-967f-4c70d8c221c8

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
1990
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/79caa66d-7985-410e-967f-4c70d8c221c8

About this result

Related concepts (32)

Economic growth

Economic growth can be defined as the increase or improvement in the inflation-adjusted market value of the goods and services produced by an economy in a financial year. Statisticians conventionally measure such growth as the percent rate of increase in the real and nominal gross domestic product (GDP). Growth is usually calculated in real terms – i.e., inflation-adjusted terms – to eliminate the distorting effect of inflation on the prices of goods produced. Measurement of economic growth uses national income accounting.

Growth medium

A growth medium or culture medium is a solid, liquid, or semi-solid designed to support the growth of a population of microorganisms or cells via the process of cell proliferation or small plants like the moss Physcomitrella patens. Different types of media are used for growing different types of cells. The two major types of growth media are those used for cell culture, which use specific cell types derived from plants or animals, and those used for microbiological culture, which are used for growing microorganisms such as bacteria or fungi.

Population growth

Population growth is the increase in the number of people in a population or dispersed group. Actual global human population growth amounts to around 83 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7.9 billion in 2020. The UN projected population to keep growing, and estimates have put the total population at 8.6 billion by mid-2030, 9.8 billion by mid-2050 and 11.2 billion by 2100.