First of all, fermentation is a kind of biological process, which is a complex biological process of converting sugar into carbon dioxide and alcohol under anaerobic conditions. In this process, the sugar is anaerobically decomposed into ethanol and carbon dioxide, and then the ethanol is further decomposed into acetic acid and carbon dioxide.

Isopropanol is a kind of alcohol, which is a volatile and flammable liquid. It is commonly used as a solvent and antifreeze. In the process of fermentation, sugar is anaerobically decomposed into ethanol and carbon dioxide, so that isopropanol is produced. Therefore, it can be said that isopropanol is a product of fermentation.

However, the process of fermentation is very complex, and the conditions and materials required for fermentation are different. In addition, the products of fermentation may also be different. Therefore, the specific conditions and materials required for the production of isopropanol are not clear.

In general, isopropanol is a product of fermentation. However, the specific conditions and materials required for its production are not clear. It is necessary to further study the process of fermentation and the conditions and materials required for its production in order to obtain more accurate information about the production of isopropanol.