The old way to make media was by the cookbook method--- adding every ingredient bit by bit. The only time that is done today is when making a special medium to grow a certain finicky. organism, where particular growth factors, nutrients, vitamins, and so on, have to be added in certain amounts.
The name Luisa is of Italian, Portuguese and Spanish origin. The meaning of Luisa is famous warrior. Luisa is generally used as a girl's name. It consists of 5 letters and 2 syllables and is pronounced Lui-sa.
This is primarily used in the Middle East. Iraq is from the ancient city of Uruk [there is some dispute whether Iraq might have been derived from the Arab term for fertility]. Tunisia comes from the city Tunis, Morocco from the city of Marrakesh. Djibouti, Kuwait and Mexico are named after the eponymous cities.