Which one of the following statements about microbes is not correct ?

Microbes play a vital role in human welfare across various sectors. They are essential in sewage treatment plants, where bacteria and fungi decompose organic matter in wastewater [3]. In industrial settings, microbes like yeast and bacteria are grown in large fermenters to produce beverages such as wine and beer [5]. Furthermore, microbes are a primary source of bioactive molecules, including enzymes and immunosuppressants used to treat diseases [6]. The statement that no antibiotic has been obtained from any microbe is factually incorrect. Antibiotics are, in fact, the most significant category of bioactive compounds extracted from microorganisms like bacteria (e.g., Streptomyces) and fungi (e.g., Penicillium) through industrial fermentation [6]. Thousands of antibiotics have been isolated from microbial sources to date, forming the backbone of modern medicine [6].

Sources

1. [3] Environment, Shankar IAS Acedemy .(ed 10th) > Chapter 5: Environmental Pollution > z. Diffuse or non-point source. > p. 74
2. [5] https://pmc.ncbi.nlm.nih.gov/articles/PMC4538407/
3. [6] https://www.ncbi.nlm.nih.gov/books/NBK234683/
4. [1] https://en.wikipedia.org/wiki/Production_of_antibiotics