Degradation of Asphaltenic Fraction by Locally Isolated Halotolerant Bacterial Strains

Table 2

Biodiversity on BSM-Asph plates before and after enrichment.

Isolates	Before En	After En
		1st En	2nd En	3rd En	4th En
Asph1; Gram +ve bacillus shape, straight rods with rounded ends, opaque, smooth, convex, entire, and mutt creamy white	(+++)	(+++)	(+++)	(+++)	(++)
Asph2; Gram −ve rod-shaped, straight or slightly curved rods, irregular margin, opaque, smooth, low convex, entire, and shiny beige	(+++)	(+++)	(+++)	(++++)	(++++)
Asph3; Gram +ve cocci shape, small, circular, opaque, smooth, convex, entire, and yellow canary color	(++)	(++)	(++)	(++)	(+++)
Asph4; Gram +ve short-rod-shaped, small, straight, or slightly curved rods, opaque, smooth, convex, entire, and orange color	(+)	(+)	(+)	(−)	(−)