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The global biomass broken down by kingdom and into taxonomic groups for animals. [1] The estimates for bacteria and archaea have been updated to 30 billion tonnes C combined since this figure was made. [20] Most of the global biomass is found on land, with only 5 to 10 billion tonnes C found in the oceans. [24]
Biomass is a term used in several contexts: in the context of ecology it means living organisms, [1] and in the context of bioenergy it means matter from recently living (but now dead) organisms. In the latter context, there are variations in how biomass is defined, e.g., only from plants, [ 2 ] from plants and algae, [ 3 ] from plants and ...
A bio-based material is a material intentionally made, either wholly or partially, from substances derived from living (or once-living) organisms, [1] such as plants, animals, enzymes, and microorganisms, including bacteria, fungi and yeast. [2] [3]
As a consequence of the quantitative magnitude of microbial life (calculated as 5.0 × 10 30 cells, [11] [12]) microbes, by virtue of their biomass alone, constitute a significant carbon sink. [13] Microbial interactions with their environment have industrial application such as wastewater treatment and bioremediation [ 14 ] [ 15 ]
Access to the previously invisible world opened the eyes and the minds of the researchers of the seventeenth century. Antonie van Leeuwenhoek investigated diverse bacteria of various shapes, fungi, and protozoa, which he called animalcules, mainly from water, mud, and dental plaque samples, and discovered biofilms as a first indication of microorganisms interacting within complex communities.
Nitrogen is an essential element needed for the creation of biomass and is usually seen as a limiting nutrient in agricultural systems. Though abundant in the atmosphere, the atmospheric form of nitrogen cannot be utilized by plants and must be transformed into a form that can be taken up directly by the plants; this problem is solved by biological nitrogen fixers.
Single-cell proteins (SCP) or microbial proteins [1] refer to edible unicellular microorganisms.The biomass or protein extract from pure or mixed cultures of algae, yeasts, fungi or bacteria may be used as an ingredient or a substitute for protein-rich foods, and is suitable for human consumption or as animal feeds.
Chemosynthetic Microbial Mat The other process of primary production is lithoautotrophy . Lithoautotrophs use reduced chemical compounds such as hydrogen gas , hydrogen sulfide , methane , or ferrous ion to fix carbon and participate in primary production.
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