公开(公告)号：US20220257773A1

公开(公告)日：2022-08-18

申请号：US17618358

申请日：2020-01-15

Applicant: SARAYA CO., LTD.

Inventor： Michiaki ARAKI ,  Yoshihiko HIRATA

IPC: A61K47/46 ,  C11D1/36 ,  A61K8/9728 ,  A61Q19/00 ,  A23L33/14

Abstract: The present invention provides an acidic sophorolipid-containing composition with suppressed browning and a method for producing the composition. The acidic sophorolipid-containing composition with suppressed browning according to the present invention is characterized in that a filtrate of a hydrolysate of a composition containing lactonic sophorolipid and acidic sophorolipid, i.e., a filtrate of the acidic sophorolipid-containing composition, has at least one of the following features (1) and (2): (1) hue value (Abs. 440): 5 or less; and (2) ethanol-insoluble content: less than 3 mass %.

公开(公告)号：US20230279038A1

公开(公告)日：2023-09-07

申请号：US18040309

申请日：2021-08-05

Applicant: SARAYA CO., LTD.

Inventor： Takuya MATSUSAKO ,  Michiaki ARAKI ,  Yoshihiko HIRATA

IPC: C07H15/04

CPC classification number: C07H15/04

Abstract: The present invention provides a sophorolipid (SL)-containing composition with excellent handleability and a method for producing the sophorolipid-containing composition. The SL-containing composition according to the present invention includes the following characteristics: (A) the content of lactonic SL being 45 to 81 mass % of the total amount of the SL taken as 100 mass %, and (B) the content of oleic acid-diacetyl lactonic SL being 95 mass % or lower of the total amount of the lactonic SL taken as 100 mass %.

公开(公告)号：US20230056021A1

公开(公告)日：2023-02-23

申请号：US17789454

申请日：2020-12-25

Applicant: SARAYA CO., LTD.

Inventor： Yoshifumi JAHANA ,  Wataru KUMANO ,  Michiaki ARAKI ,  Yuka ODA ,  Emiko KAWAMUKAI ,  Yoshihiko HIRATA

IPC: B01F23/2373 ,  C07H15/04 ,  B01F23/232 ,  B01F23/237

Abstract: The invention relates to an ultrafine bubble (UFB) generator and a method for generating UFB. The invention also provides an ultrafine bubble-containing liquid and a production method of the liquid. An ultrafine bubble generator is prepared by combining (A) a sophorolipid containing acidic sophorolipid and lactonic sophorolipid in a ratio (mass ratio) of 78:22 to 100:0, (B) a free fatty acid or salt thereof, and (C) a gas generation component.