National Institute of Advanced Industrial Science and Technology

Toyo Boseki Kabushiki Kaisha

Takao Raku

Yutaka Tokiwa

Masaru Kitagawa

Shusaku Yanagidani

Tetsuzo Totani

Kenji Yoshino

Hiromi Shimakawa

Disclosed is a tyrosinase activity controlling agent comprising, as an active ingredient, a compound that has tyrosinase inhibiting or promoting activity, an external preparation comprising the controlling agent, and a process for producing the compound.

Tyrosinase activity controlling agent, process for producing the same and external preparation containing the same

This invention provides a novel rapidly biodegradable polylactide resin composition while maintaining the good mechanical strength and physical properties of polylactide. This biodegradable polylactide resin composition comprises at least one protein selected from silk, gelatin, keratin, elastin, gluten, zein, or soybean. This composition further comprises degraded mannan, and furthermore, a filler.

Biodegradable polylactide resin composition

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Tsukuba, Japan

Takao Raku