Process:

        from baker’s yeast, processed by roller drying

Feature:

        contain yeast cell wall, rich in protein and RNA.

Application:

        antibiotics, nucleotides, polyunsaturated fatty acid(PUFA), fungus, biopesticides, etc.

Representative industry:

        1. Tetracycline

        2. Nucleotides

Feature of customers:

        fermentation of antibiotics or nucleotides

Demand of customers:

        1. Require the balance between growth and titer

        2. Relatively sensitive to the price