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[Cephalosporin C production by solid state fermentation with rice grains]
Zhonghua Minguo Wei Sheng Wu Ji Mian Yi Xue Za Zhi = Chinese Journal of Microbiology and Immunology
|February 1, 1984
Summary
This study optimized solid-state fermentation using rice to produce cephalosporin C. The best conditions yielded 6420 µg/g of cephalosporin C, demonstrating efficient antibiotic production.
Area of Science:
- Biotechnology
- Microbial Fermentation
- Antibiotic Production
Context:
- Solid-state fermentation (SSF) is an efficient method for producing microbial metabolites.
- Cephalosporin C is a vital antibiotic precursor with significant pharmaceutical applications.
- Optimizing SSF conditions is crucial for maximizing antibiotic yields.
Purpose:
- To investigate and optimize solid-state fermentation parameters for enhanced cephalosporin C production.
- To identify the optimal basal substrate, fermentation medium composition, and microbial strain.
- To determine the ideal physical conditions (moisture, water activity, temperature) for fermentation.
Summary:
- Rice was identified as the optimal substrate for cephalosporin C production via SSF, outperforming other grains.
- A specific fermentation medium formulation and the C. acremonium M8650-R-3 strain were found to be superior.
- Optimal conditions included an inoculum density of 2.8 x 10(8) spores/g, 49-51% moisture, 0.985 water activity, and 25°C, resulting in 6420 µg/g cephalosporin C yield after 7 days.
Impact:
- Establishes an optimized protocol for cephalosporin C production using readily available rice substrate.
- Provides valuable insights into strain selection and medium optimization for antibiotic biosynthesis.
- Demonstrates the potential for high-yield cephalosporin C production through controlled solid-state fermentation.