# US 11,432,552 B2 · Deodorizing/antibacterial agent

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- Number: US 11,432,552 B2
- Document ID: US11432552B2
- Status: Granted
- Kind: B2
- Application number: 16/491,956
- Filed: 2018-03-02
- Published: 2021-05-06
- Granted: 2022-09-06
- Earliest claimed: 2017-03-07
- Assignees: Rilis Co., Ltd.; Kinki University
- Applicants: Rilis Co., Ltd.; Kinki University
- Inventors: Atsushi Henmi; Masato Nomura
- Web page: https://patentgrep.com/patent/US11432552B2

## CPC

- A01N 65/00: Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof (containing compounds of determined constitution A01N27/00 - A01N59/00)
- A01N 65/34: Rosaceae [Rose family], e.g. strawberry, hawthorn, plum, cherry, peach, apricot or almond
- A01N 35/04: containing aldehyde or keto groups, or thio analogues thereof, directly attached to an aromatic ring system, e.g. acetophenone; Derivatives thereof, e.g. acetals
- A01N 37/10: Aromatic or araliphatic carboxylic acids, or thio analogues thereof; Derivatives thereof
- A01N 65/08: Magnoliopsida [dicotyledons]
- A61L 9/01: Deodorant compositions {(compositions released by contact with a liquid A61L9/05)}
- A61L 9/013: containing animal or plant extracts, or vegetable material
- A61L 2101/36: Carboxylic acids or derivatives thereof
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K)

## Abstract

To improve the fact that the main components of conventional deodorizing and antimicrobial agents are existing components, the effect and efficacy of which are known to some extent, and do not generate an effect better than predicted. The deodorizing and antimicrobial agent of the present invention has a loquat seed extract including non-volatile fatty acids and at least benzaldehyde and benzoic acid as a main raw material.

## Claims

### Claim 1

A deodorizing and antimicrobial agent, comprising:
a loquat seed extract comprising non-volatile fatty acids and at least benzaldehyde and benzoic acid;
a bayberry seed extract comprising non-volatile fatty acids;
wherein a mass:mass ratio of the loquat seed extract to the bayberry seed extract is from 1:3 to 1:5.

### Claim 2 (depends on 1)

The deodorizing and antimicrobial agent according to claim 1, wherein the agent is topical.

### Claim 3 (depends on 1)

The deodorizing and antimicrobial agent according to claim 1, wherein the agent synergistically inhibits Escherichia coli and Bacillus subtilis more than the loquat seed extract individually.

### Claim 4 (depends on 1)

The deodorizing and antimicrobial agent according to claim 1, wherein the non-volatile fatty acids comprise one or more fatty acids selected from the group consisting of palmitic acid, linoleic acid, behemic acid, oleic acid, and lignoceric acid.

### Claim 5 (depends on 1)

A method of preparing the deodorizing and antimicrobial agent according to claim 1, comprising:
extracting from loquat seeds, with hexane, a loquat seed extract comprising palmitic acid, linoleic acid, behemic acid, lignoceric acid, benzaldehyde, and benzoic acid;
extracting from bayberry seeds, with hexane, a bayberry seed extract comprising linoleic acid and oleic acid; and
mixing the loquat seed extract and the bayberry seed extract so as to produce the deodorizing and antimicrobial agent;
wherein the mass:mass ratio of the mixing of the loquat seed extract to the bayberry seed extract is from 1:3 to 1:5.