Patent Picks—Natural Preservatives, Beta-Lactam for Hair Growth, Allyl Caproate for Sensory and More

By: Rachel L. Grabenhofer

Posted: November 23, 2011

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Antimicrobial compositions comprising benzoic acid
European Patent Application EP2387883
Publication date: Nov. 23, 2011
Assignee: Lonza Inc.

Due to the continued need for broad-spectrum, low cost and safe preservative systems, the present invention provides an antimicrobial composition including an effective amount of preservative, bactericide, and/or fungicide in a mixture comprising at least: a) benzoic acid or a salt thereof; b) δ-gluconolactone; and, optionally, one or more of: c) lemon grass oil; d) cinnamaldehyde; e) sorbic acid or a salt thereof; f) erythorbic acid or a salt thereof; g) arabinogalactan (galactoarabinan); h) a hexahydro-iso-alpha-acid or tetrahydro-iso-alpha-acid obtained from hops extracts or a mixture thereof; and i) Achillea fragrantissima (Santolina fragrantissima Forssk., lavender cotton) oil.

Antimicrobial compositions comprising cinnamaldehyde
European Patent Application EP2387882
Publication date: Nov. 23, 2011
Assignee: Lonza Inc.

According to this invention, natural products, while often safe, are generally expensive and do not have biocidal efficacy against a broad spectrum of organisms such as Gram-negative and Gram-positive bacteria and fungi; most natural products are only effective against Gram-positive bacteria when used at relatively high concentrations. The present invention therefore provides an antimicrobial composition comprising an effective amount of preservative, bactericide and/or fungicide in a mixture comprising at least: a) cinnamaldehyde and b) sorbic acid or a salt thereof; and optionally, one or more of: c) lemon grass oil; d) erythorbic acid or a salt thereof; e) benzoic acid or a salt thereof; f) arabinogalactan (galactoarabinan); g) a hexahydro-iso-alpha-acid or tetrahydro-iso-alpha-acid obtained from hops extracts or a mixture thereof; h) Achillea fragrantissima (Santolina fragrantissima Forssk., lavender cotton) oil; and (i) δ-gluconolactone.

Allyl caproate to enhance sensory benefits with continued use and, thereby, consumer preference
European Patent EP2143782
Publication date: Nov. 23, 2011
Assignee: Shiseido Company, Ltd.