Ultrasonic (high frequency/low intensity) stimulation of Chlorella vulgaris is shown to intensity population growth. The effeet is caused by a change in the cellular membrane potential as a resuh of increased permeability of the membrane; metabolie rate is thus determined by the cell′s energy demand. It is suggested tbat sonicatíon can be applied in biotech- nological proeesses involving Chlorella.
Biotechnology is a science that combines the natural sciences and engineering, aimed at adapting organisms, cells or their constituent parts and molecular analogues to obtain products and services. Biotechnology focuses on biosynthesis and biotransformation. This article deals with the scientific bases of biotechnology, and its main applications, techniques and biotechnological products.