Table 1 Summary of the characteristics highlighted in the respective original works for the thermophilic bacteria

Bacillus stearothermophilus; B. subtilis; genus Thermus

Metabolic activity above 70 °C

n.d.

[36]

Bacillus licheniformis; B. subtilis; B. coagulans type B; B. stearothermophilus; B. sphaericus

Bacillus spp. found during the thermophilic phase

Table scraps and shredded newspaper

[37]

Hydrogenobacter spp.

Sulfur- and hydrogen-oxidizing, autotrophic thermophilic bacteria

Green waste, wood chips, and kitchen waste, or sewage sludge

[38]

Bacillus stearothermophilus; Thermus thermophilus HB8

Growth between 65–69 °C; growth between 65–82 °C

Kitchen waste and shredded garden waste or methanized sewage sludge, and wood chips

[39]

Thermus thermophilus; Bacillus spp.

Growth above 70 °C

Kitchen waste, garden waste, grass, and shredded wood

[40]

Bacillus pallidus; B. stearothermophillus; B. thermodenitrificans

Isolates identification

Kitchen waste and shredded garden waste or methanized sewage sludge, and wood chips

[41]

Bacillus thermodenitrificans; B. sporothermodurans; B. thermosphaericus

Dominant species between 55–73 °C

General garden and domestic waste

[42]

Aneurinibacillus sp.; Brevibacillus sp.

Most abundant isolates

Synthetic food waste

[43]

Geobacillus toebii

Novel species isolated

Hay

[49]

Geobacillus toebii subsp. decanicus subsp. nov

Novel subspecies isolated

Organic urban waste and green bush waste

[50]

Geobacillus galactosidasius

Novel species isolated

From the Experimental System of Composting of Teora, Avellino, Italy

[51]

Bacillus composti; B. thermophilus

Novel Fe(III)-reducing species isolated

Sewage sludge and crop straw

[52]

Aeribacillus composti

Novel species isolated

Olive mill pomace

[53]