Step 1: Understanding the Concept:
A fermentor (or bioreactor) is a specialized vessel used in biotechnology to culture microorganisms, animal cells, or plant cells on a large scale.
Step 2: Detailed Explanation:
1. The primary purpose of a fermentor is to cultivate a cell population to produce a target metabolite or recombinant protein.
2. To maximize yield, the fermentor maintains a controlled environment, regulating parameters such as temperature, pH, dissolved oxygen concentration, nutrient feeding, and agitation.
3. While auxiliary systems handle sterilization (autoclaves) and product recovery/purification (downstream processing), the fermentor's role is to provide optimal growth conditions during the cultivation phase.
Step 3: Final Answer:
The basic function of a fermentor is to provide optimum growth conditions to the organism to obtain the desired product.