Biotransformation of one monoterpene by sporulated surface cultures of Aspergillus niger and Penicillium sp.

In this study, biotransformation of menthol by sporulated surface culture of Aspergillus niger and Penicillium sp. was studied. The main bioconversion product obtained from menthol of A.

Biosorption of copper, cobalt and nickel by marine brown alga Sargassum sp. in fixed-bed column.

The biosorption of copper, cobalt and nickel by marine brown alga Sargassum sp. were investigated in a fixed-bed column (temperature = 30 degrees C; different pH). Langmuir and Freundlich sorption models were used to represent the equilibrium data.