| abstract |
An object of the present invention is to provide a low-toxicity sophorolipid-containing composition. SOLUTION: The coloring matter, acid-form sophorolipid, fatty acid and hydroxyfatty acid derived from a culture of SL-producing yeast are contained at least, and the total amount of acid-form sophorolipid, lactone-form sophorolipid, and fatty acid and hydroxyfatty acid is 100% by mass. A low-toxicity sophorolipid-containing composition, wherein the respective proportions are as follows in terms of dry weight: (1) acid-type sophorolipid: 94 to 99.99% by mass, (2) lactone-type sophorolipid: 0 to 2% by mass, (3) Total amount of fatty acid and hydroxy fatty acid: 0.01 to 4% by mass. [Selection diagram] None |