| 摘要 |
PURPOSE:To industrially and advantageously obtain the subject edible compound by culturing a microorganism, belonging to the genus Acetobacter and having the ability to produce a cellulosic substance in a culture medium containing a carboxylic acid (salt) which is a factor in promoting the production of the cellulose and then collecting the resultant product, CONSTITUTION:This method for producing a bacterial cellulose is to inoculate a microorganism, belonging to the genus Acetobacter and having the ability to produce a cellulosic substance (e.g. Acetobacter xylinum ATCC23768) in a culture medium containing a carboxylic acid (e.g. lactic acid) or a salt thereof as a factor in promoting the production of cellulose added thereto, carry out the stationary culture in a low- temperature incubator at 28 deg.C for 3 days, then filter the culture solution through a gauze, subsequently centrifuge the filtrate, separate the microbial cell, add a sterilized physiological saline solution to the separated microbial cell, provide a seed microbial solution, inoculate the prepared seed microbial solution into the same culture medium as that used in culturing the seed, perform the main culture at 28 deg.C for 4 days while shaking the culture medium and then collect the cellulose and cellulosic substance, produced and accumulated in the culture medium. This bacterial cellulose is useful for retaining the viscosity of a food, a cosmetic, a coating, etc., and usable as a food additive, an emulsion stabilizer, etc. |
