	US 12,404,294 B2
	Glycolipopeptide biosurfactants
Russell Greig Kerr, Charlottetown (CA); Bradley Arnold Haltli, New Haven (CA); Douglas Hubert Marchbank, Stratford (CA); and Fabrice Berrué, Halifax (CA)
Assigned to CRODA INTERNATIONAL PLC, Goole (GB)
Filed by Croda International Plc, Goole (GB)
Filed on Jan. 20, 2023, as Appl. No. 18/099,723.
Application 16/817,193 is a division of application No. 16/090,888, abandoned, previously published as PCT/EP2017/058296, filed on Apr. 6, 2017.
Application 18/099,723 is a continuation of application No. 16/817,193, filed on Mar. 12, 2020, granted, now 11,608,352.
Claims priority of application No. 1605875 (GB), filed on Apr. 6, 2016.
Prior Publication US 2023/0227489 A1, Jul. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C07H 15/04 (2006.01); C02F 3/34 (2023.01); C07H 1/08 (2006.01); C11D 1/00 (2006.01); C11D 1/66 (2006.01); C11D 3/38 (2006.01); C12N 1/20 (2006.01); C12N 15/52 (2006.01); C12P 19/44 (2006.01); C11D 1/10 (2006.01); C12R 1/01 (2006.01)

CPC C07H 15/04 (2013.01) [C02F 3/34 (2013.01); C07H 1/08 (2013.01); C11D 1/008 (2013.01); C11D 1/662 (2013.01); C11D 3/381 (2013.01); C12N 1/205 (2021.05); C12N 15/52 (2013.01); C12P 19/44 (2013.01); C11D 1/10 (2013.01); C12R 2001/01 (2021.05)]

10 Claims

1. A purified biosurfactant comprising a hydrophobic lipid component comprising a carboxyl end and a hydroxyl end, wherein the lipid component is covalently linked to (i) a peptide or nonproteinogenic amino acid chain at the carboxyl end of the lipid component and (ii) a carbohydrate moiety at the hydroxyl end of the lipid component via a glycosidic linkage, wherein the carbohydrate moiety includes one, two or three rhamnose moieties, wherein one or more rhamnose hydroxy groups are acetylated if there is one rhamnose moiety and two or more rhamnose hydroxy groups are acetylated if there are two rhamnose moieties.