Table 2.

Marine-derived enzymes.

Name of enzymes	Sources	Enzyme type	Activity	ref
l-asparaginase	Bacterial sources E. coli Erwinia carotovora)	Asparaginase	Convert l-asparagine into aspartic acid and ammonia Anti-carcinogenic activity Reduce carcinogenic acrylamide	[150] [152] [157]
	Fungal sources Aspergillus oryzae
	Microalgae sources Spirulina maxima Chlamydomonas sp
Carbonic anhydrase containg cadmium	Marine diatom Thalassiosira weissflogii	Metalloenzymes	Catalyze the reversible hydration of CO2 Acquire inorganic carbon for photosynthesis	[158] [159]
Alkaline protease	marine Psychrobacter Aureobasidium pullulan Bacillus mojavensis A21 Pseudoalteromonas sp	Protease	Peptide hydrolases	[160] [161]
Extracellular phospholipase C	marine streptomycete Pseudoalteromonas sp	Lipases	Hydrolyze different oils	[162] [163]
Chitinase Chitosanase	Vibrio fluvialis, Vibrio parahaemolyticus, Vibrio mimicus Vibrio alginolyticus Listonella anguillarum Aeromonas hydrophila Aspergillus griseoaurantiacus KX010988.	Hydrolase	Degrade chitin and chitosan	[[164], [165], [166]]
Alginate lyases	Algae marine invertebrates Vibrio splendidus 12B01	Lyases	Degrade alginate	[[167], [168], [169]]
Agarases	Cytophaga Bacillus Vibrio Alteromonas Pseudoalteromonas Streptomyces Vibrio sp. F-6	Hydrolase	Hydrolyze agar	[170,171]
Carrageenases	Pseudomonas, Cytophaga, Alteromonas atlantica, Wingyingzhuangia aestuarii OF219 Flavobacterium sp. YS-80-122	Hydrolase	Degrade carrageenans	[[172], [173], [174], [175]]
Cellulose and hemicellulose hydrolase	Cytophaga, Cellulomonas, Vibrio, Clostridium, Streptomyces Fusarium, Chaetomium, Phoma, Sporotrichum, Glaciecola sp. strain 4H-3–7+YE-5	Hydrolase	Break down cellulose	[[176], [177], [178]]