I want to learn about Biodiversity in kitchen.?

Question

Especially in connection with foodstuff.

Answer 1

Biodiversity would not really be the word for it, but you're thinking about stuff like E-coli, etc. Here are a few links I reviewed for an internet search for Food Safety but there are many more.
http://www.foodsafety.gov/~fsg/fsgpath.html

http://www.cdc.gov/foodsafety/edu.htm

This one has a "Product-Specific Advice" section (Dairy, etc.)

http://www.foodsafety.gov/~fsg/fsgadvic.html

Answer 2

Anywhere really is fine... just make sure you have good lighting though.