Abstract: Provide is a medicinal agent having a strain-selective antibacterial activity for acne bacteria which are indigenous bacteria in the human skin, namely having a stronger bactericidal or growth suppressing activity on an acne bacterium strain enriched in an acne patient group rather than on an acne bacterium strain enriched in a healthy subject group. An acne strain-selective antibacterial agent, comprising at least one fatty acid selected from the group consisting of saturated fatty acids having 14 to 20 carbon atoms (C14:0 to C20:0) and a monounsaturated fatty acid having 18 carbon atoms (C18:1) in a free form or a salt form, or an ester thereof.

Abstract: A disc brake cover (40) includes a disc portion (41) configured to cover a front side surface and an outer peripheral surface of a brake disc (12) of a disc brake (11), and a caliper portion (42) configured to cover the brake caliper (14) including recessed portions (31, 32, 34) formed on a front side thereof. The caliper portion (42)bas protrusions (95, 96) configured to fit with the recessed portions to thereby attach the disc brake cover to the disc brake with the disc portion located close to the brake disc. The disc brake cover further includes a reinforcement flange (43) extending continuously along outer peripheral edges of the disc portion and the caliper portion.

Abstract: There is disclosed herein a process for purifying a crude xanthophyll which is characterized by acting a lipase on the crude xanthophyll, which is obtained by extracting algae with a solvent, in the present of water under an acidic condition without adjusting the pH whereupon the contaminating neutral lipids (mono-, di- and triglycerides) are selectively hydrolyzed, subjecting the lipase-treated liquor to oil/water separation and removing free fatty acids from the oil layer fractioned thereby elevating the content of xanthophyll.