| abstract |
The present invention provides a method for producing aldonic acid that can be safely used as a pharmaceutical, food, or feed by using a safe microbial cell. [MEANS FOR SOLVING PROBLEMS] A sugar having a hemiacetal hydroxyl group other than glucose is brought into contact with a microbial cell belonging to an acetic acid bacterium (eg, Gluconobacter cerinas NBRC 3267, Gluconobacter oxydans NBRC 3285, etc.) to form a hemiacetal. A method for producing aldonic acid, comprising oxidizing a hydroxyl group to produce aldonic acid corresponding to a sugar having a hemiacetal hydroxyl group as a substrate. [Selection] Figure 1 |