Table 1.

Representative thermophilic enzymes from deep-sea microorganisms.

Source	Habitat	Enzyme	Thermostability	References
Bacillus sp. JM7	deep-sea water	keratinase	50 °C (70%, 1 h)	[44]
Pyrococcus furiosus	deep-sea vents	prolidase	100 °C (100%, 12 h)	[45]
Geobacillus sp. EPT9	deep-sea vents	lipase	80 °C (44%, 1 h)	[46]
Geobacillus sp. 12AMOR1	deep-sea vents	monoacylglycerol lipase	70 °C (half-life 1 h)	[47]
Flammeovirga Sp. OC4	deep-sea water	β-Agarase	50 °C (35%, 144 h)	[48]
Flammeovirga pacifica	deep-sea water	β-Agarase	50 °C (100%, 10 h)	[49]
Microbulbifer strain JAMB-A7	deep-sea sediment	β-Agarase	50 °C (half-life 502 min)	[50]
Flammeovirga pacifica	deep-sea water	α-amylase	60 °C (81%, 20 min)	[51]
Geobacillus sp. 4j	deep-sea sediment	α-amylase	80 °C (half-life 4.25 h)	[52]
Fosmid library	deep-sea vents	cellulase	92 °C (half-life 2 h)	[24]
Flammeovirga pacifica	deep-sea water	arylsulfatase	50 °C (70%, 12 h)	[53]
Staphylothermus marinus	deep-sea vents	amylopullulanase	100 °C (half-life 50 min)	[54]
Geobacillus sp. MT-1	deep-sea vents	xylanase	65 °C (half-life 50 min)	[55]