Patent 7114392 was granted and assigned to Novozymes A/S on October, 2006 by the United States Patent and Trademark Office.
The present invention relates to a method for acoustic emission analysis of a granular composition comprising a biologically active compound, said method comprising colliding the granular composition with at least one surface transmitting low frequency vibrations, recording low frequency vibration data in range of 10 Hz to less than 50 kHz, arising from the collision, with at least one vibration detector and subjecting the recorded low frequency vibration data to computerized data processing.