Journal of Dairy Research | VOL. 10
Read

205. Methods of measuring gas production

Publication Date Jan 1, 1939

Abstract

Gas production in dairy products is a subject of considerable importance, since it is responsible for certain defects in milk, cream, cheese and occasionally condensed milk. Four groups of micro-organisms are concerned, namely, yeasts, lactic acid bacteria, coliform bacteria and spore-forming anaerobes, and of these the fixs two produce carbon dioxide only while the last two produce a mixture of carbon dioxide and hydrogen (with some anaerobes there may be methane as well). Where both gases are evolved the effectiveness of the two as regards ability to produce effervescence or to develop pressure in a closed container or in a hard-pressed substance like cheese differs by virtue of the fact that carbon dioxide is soluble in water (its solubility depending on the pressure and pH of the medium) while hydrogen is insoluble. Until the medium in which such micro-organisms are growing becomes saturated with carbon dioxide the effective gas production is therefore due to hydrogen. On the other hand, in some media the hydrogen may be involved in secondary reactions with some of the constituents while in the nascent condition and will therefore not form gas.

Concepts
Powered ByUnsilo

Carbon Dioxide
Spore-forming Anaerobes
Gas Production
Produce Carbon Dioxide
Lactic Acid Bacteria
Secondary Reactions
Coliform Bacteria
Dairy Products
Mixture Of Hydrogen
Carbon Hydrogen

Introducing Weekly Round-ups!Beta

Powered by R DiscoveryR Discovery

Round-ups are the summaries of handpicked papers around trending topics published every week. These would enable you to scan through a collection of papers and decide if the paper is relevant to you before actually investing time into reading it.

Climate change Research Articles published between Jun 20, 2022 to Jun 26, 2022

R DiscoveryJun 27, 2022
R DiscoveryArticles Included:  2

One eighth of the bird species in the world is considered globally threatened; the avifauna of Iraq comprises 409 species and is considered as the maj...

Read More

Coronavirus Pandemic

You can also read COVID related content on R COVID-19

R ProductsCOVID-19

ONE PROBLEM . ONE PURPOSE . ONE PLACE

Creating the world’s largest AI-driven & human-curated collection of research, news, expert recommendations and educational resources on COVID-19

COVID-19 Dashboard