Biosurfactant usually refers to surfactants of microbial origin. Most of the biosurfactants produced by microbes are synthesized extracellularly and many microbes are known to produce biosurfactants in large relative quantities. Some are of commercial interest. As a secondary metabolite of microorganisms, biosurfactants can be processed by the cultivation of biosurfactant producing microorganisms in the stationary phase on many sorts of low-priced substrates like biochar, plant oils, carbohydrates, wastes, etc. High-level production of biosurfactants can be controlled by regulation of environmental factors and growth circumstances.
Streptomyces griseus is a species of bacteria in the genus Streptomyces commonly found in soil. A few strains have been also reported from deep-sea sediments. It is a Gram-positive bacterium with high GC content. Along with most other streptomycetes, S. griseus strains are well known producers of antibiotics and other such commercially significant secondary metabolites. These strains are known to be producers of 32 different structural types of bioactive compounds. Streptomycin, the first antibiotic ever reported from a bacterium, comes from strains of S. griseus. Recently, the whole genome sequence of one of its strains had been completed.
Streptomyces hygroscopicus is a bacterial species in the genus Streptomyces. It was first described by Hans Laurits Jensen in 1931.
Streptomyces abyssalis is a bacterium species from the genus Streptomyces which has been isolated from deep sea sediments in the South China Sea on the Xisha Islands in China.
Streptomyces chumphonensis is a bacterium species from the genus of Streptomyces which has been isolated from marine sediments from the Chumphon province in Thailand.
Streptomyces glycovorans is a bacterium species from the genus of Streptomyces which has been isolated from marine sediments of the South China Sea near the Xisha Islands in China.
Streptomyces griseoaurantiacus is a thermotolerant bacterium species from the genus of Streptomyces which was isolated from marine sediment. Streptomyces griseoaurantiacus produces the antibiotics manumycin, diperamycin and chinikomycin, and griseolic acid.
Streptomyces hoynatensis is a bacterium species from the genus of Streptomyces which has been isolated from marine sediment from the Black Sea in Turkey.
Streptomyces klenkii is a bacterium species from the genus of Streptomyces which has been isolated from deep marine sediments from the Black Sea near the Ordu Province in Turkey.
Streptomyces nanhaiensis is a bacterium species from the genus of Streptomyces which has been isolated from deep sea sediments from the northern South China Sea in China.
Streptomyces nanshensis is a bacterium species from the genus of Streptomyces which has been isolated from marine sediments from the South China Sea near the Nansha Islands in China.
Streptomyces pharmamarensis is a Gram-positive bacterium species from the genus of Streptomyces which has been isolated from marine sediment at the Mediterranean Sea near the Italian island of Sicily.
Streptomyces sanyensis is a bacterium species from the genus of Streptomyces which has been isolated from mangrove soil in Sanya in Hainan in China. Streptomyces sanyensis produces indolocarbazoles.
Streptomyces sulphureus is a bacterium species from the genus of Streptomyces which has been isolated from marine sediments in Dalian in China.
Streptomyces tendae is a bacterium species from the genus of Streptomyces which has been isolated from soil in France. Streptomyces tendae produces carbomycin, streptofactin, geosmin, cervimycin A-D and nikkomycins. Also said to be the source of Tendamistat, an alpha amylase inhibitor.
Streptomyces xiamenensis is a bacterium species from the genus of Streptomyces which has been isolated from mangrove sediments in Xiamen in the Fujian Province in China. Streptomyces xiamenensis produces the antifibrotic drug xiamenmycin.
Streptomyces xinghaiensis is a bacterium species from the genus of Streptomyces which has been isolated from marine sediments from Xinghai Bay near Dalian in China.
Streptomyces xishensis is a bacterium species from the genus of Streptomyces which has been isolated from marine sediments from the South China Sea near the Xisha Islands in China.
Streptomyces ovatisporus is a Gram-positive bacterium species from the genus of Streptomyces which has been isolated from marine sediments from the coast of the Black Sea in Turkey.
Streptomyces verrucosisporus is a bacterium species from the genus of Streptomyces which has been isolated from marine sediments from the Chumphon Province on Thailand.
