Abstract: The present disclosure relates to a composition for preventing, ameliorating or treating sleep disorder or insomnia, which contains an extract of a roasted citrus byproduct as an active ingredient. The extract of a roasted citrus byproduct of the present disclosure has very excellent effect of decreasing sleep latency, increasing sleep duration and increasing non-REM sleep. In addition, the composition of the present disclosure, which contains ingredients derived from the naturally occurring citrus byproduct, can ensure safety without inducing the side effects of synthetic drugs including pentobarbital and benzodiazepine and with no side effects such as cognitive impairment, tolerance or dependency even after long-term use. Accordingly, the composition for preventing, alleviating or treating sleep disorder, which contains an extract of a roasted citrus byproduct as an active ingredient, of the present disclosure is very useful for preparation of a food composition and a pharmaceutical composition.

Abstract: Disclosed is a use of rice, rice bran or rice hull extract as a histamine receptor antagonist. The rice, rice bran or rice hull extract may be used as a natural antihistamine to prevent or treat allergic rhinitis, inflammatory bowel disease, asthma, bronchitis, nausea, gastric and duodenal ulcer, gastroesophageal reflux disease, sleep disorder, anxiety and depression. It provides comparable or better effect of decreasing sleep latency, increasing sleep duration and increasing non-REM sleep as compared to diazepam, which is currently used as sleeping drug. Derived from the natural product rice, rice bran or rice hull, it has no side effect such as cognitive impairment, resistance or dependency even after long-term use.

Abstract: Disclosed is a novel use of rice, rice bran or rice hull extract as a histamine receptor antagonist. The rice, rice bran or rice hull extract may be used as a natural antihistamine to prevent or treat allergic rhinitis, inflammatory bowel disease, asthma, bronchitis, nausea, gastric and duodenal ulcer, gastroesophageal reflux disease, sleep disorder, anxiety and depression. It provides comparable or better effect of decreasing sleep latency, increasing sleep duration and increasing non-REM sleep as compared to diazepam, which is currently used as sleeping drug. Derived from the natural product rice, rice bran or rice hull, it has no side effect such as cognitive impairment, resistance or dependency even after long-term use.