A scientist in a lab putting some liquid into petri dishes
Footage of a scientist working in a lab.-she is taking some samples from beverages and puts them into petri dishes
Footage of a scientist working in a lab.,she is taking some food samples and puts them into petri dishes for further quality check
Lab worker cleaning laboratory equipment. Scientist woman working in lab. Close up of scientist working with equipment. Lab woman working in lab. Female scientist working with laboratory equipment