Extrait de plante pour la prévention ou le traitement du ronflement et/ou de l'apnée du sommeil
申请人:Cariel, Léon
公开号:EP2138054A1
公开(公告)日:2009-12-30
La présente invention concerne un nouvel extrait de plante et les compositions contenant cet extrait pour la prévention, la diminution ou la suppression du ronflement et/ou de l'apnée du sommeil. L'invention concerne plus particulièrement une composition comprenant au moins un terpène ou un terpénoïde et un extrait d'une plante de la famille des Zingiberaceae, de préférence choisie parmi les espèces Alpinia galanga, Alpinia officinarum, Zingiber officinalis, Zingiber cassumunar et Zingiber zerumbet, de préférence Alpinia galanga, l'extrait contenant des dérivés de phénylpropène et étant exempt de dérivés de type chavicol. Elle concerne aussi un procédé d'obtention d'un tel extrait comprenant une étape de macération en présence d'un solvant, puis une seconde étape dans laquelle l'extrait issu de la macération est soumis au reflux d'une solution aqueuse.
PHARMACEUTICAL COMPOSITION FOR ALLEVIATING OR TREATING GOUT AND USES THEREOF
申请人:Industrial Technology Research Institute
公开号:EP3175850A1
公开(公告)日:2017-06-07
Disclosed are a pharmaceutical composition for alleviating or treating gout and the applications thereof. The pharmaceutical composition at least comprises p-coumaryl diacetate as an active ingredient.
[EN] PHARMACEUTICAL COMPOSITION FOR ALLEVIATING OR TREATING GOUT AND USES THEREOF<br/>[FR] COMPOSITION PHARMACEUTIQUE POUR SOULAGER OU TRAITER LA GOUTTE ET SON UTILISATION<br/>[ZH] 缓解或治疗痛风的医药组合物及其用途
申请人:IND TECH RES INST
公开号:WO2016015271A1
公开(公告)日:2016-02-04
一种缓解或治疗痛风的医药组合物与其应用。该医药组合物至少包含二乙酸-对-香豆醇酯作为一活性成份。
DFRC Method for Lignin Analysis. 1. New Method for β-Aryl Ether Cleavage: Lignin Model Studies
作者:Fachuang Lu、John Ralph
DOI:10.1021/jf970539p
日期:1997.12.1
A new method for selective and efficient cleavage of arylglycerol-beta-aryl (beta-O-4) ether linkages in lignins is described and applied to several Lignin beta-ether models. The term "DFRC" was coined for derivatization followed by reductive cleavage. Derivatization, accompanied by cell wall solubilization, is accomplished with acetyl bromide (AcBr); reductive cleavage of resulting beta-bromo ethers utilizes zinc in acetic acid. Degradation monomers, 4-acetoxycinnamyl acetates, from beta-ether cleavage by the DFRC method were identified by NMR, CC-MS, and comparison of GC retention times with authentic compounds. Under the conditions used in this study, the beta-ether linkage of all models was cleaved in very high (> 92%) yield. The DFRC method produces simpler mixtures of monomers with higher yields than alternative hydrolytic methods. Because of its relative simplicity, mild conditions, and exceptional selectivity, this method should become a powerful analytical method for lignin characterization.
Pungent Principal of <i>Alpinia galangal</i> (L.) Swartz and Its Applications
作者:Xiaogen Yang、Robert G. Eilerman
DOI:10.1021/jf9808224
日期:1999.4.1
The pungent principal of galangal [Alpinia galangal (L.) Swartz] rhizomes was isolated and identified as 1'-acetoxychavicol acetate (galangal acetate). Galangal acetate exhibits a unique pungent sensation, which is less intense than that of capsaicin and without a lingering effect. Applications of galangal acetate were tested in beverages, sweet goods, dressings, and personal care products. In many applications, galangal acetate is preferred to other pungent ingredients. It can be used as an alcohol enhancer or an alcohol replacer in alcohol and alcohol-free beverages. Galangal acetate is not stable in aqueous solutions and undergoes hydrolysis/isomerization reactions. Therefore, galangal acetate was absent in galangal essential oil obtained by steam distillation. However, galangal acetate was found as one of the major volatile components of the galangal rhizomes by headspace GC analysis. The stability of galangal acetate was studied under various conditions.