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Rosa x alba:source of essential minerals and volatile oils

Natural Products and Bioprospecting 2011年第1期1卷 57-61页

作者： Karim HOSNI Laboratoire des Substances Naturelles Institut National de Recherche et d’Analyse Physicochimique(INRAP)Pôle technologique de Sidi Thabet2020ArianaTunisia

Rosa x alba is cultivated almost exclusively for the production of aromatic water and fruits widely used as ingredients in some traditional food preparations sold *** of the proximate and elemental analyses revealed that flowers exhibited higher moisture content while the dry matter content was higher in *** fat and ash was higher in fruits when compared with leaves and *** studied organs were found to be rich in essential mineral such as K,Ca,P and *** and quantitative analysis of the volatile oils revealed different composition patterns between *** and geraniol were found as major constituents of the leaf oil whereas 2-phenethyl alcohol and eugenol were the major constituents of the floral *** contrast,fruits showed very distinct composition and alkanes/alkenes were found to have the major *** present composition could justify the traditional use of Rosa x alba which could be considered as a potential source of essential minerals and volatile constituents.

关键词： Rosa x alba Rosaceae proximate composition essential minerals volatile oil constituents

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Micromorphological description of vernacular cob process and comparison with rammed earth

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Frontiers of Architectural Research 2020年第1期9卷 203-215页

作者： Erwan Hamard Cécilia Cammas Blandine Lemercier Bogdan Cazacliu Jean-Claude Morel IFSTTAR MASTGPEMF-44344BouguenaisFrance inrap UMR 5140AgroParisTechF-78850Thiverval-GrignonFrance UMR SAS AGROCAMPUS OUESTINRAF-35042RennesFrance Faculty of Engineering Environment and ComputingCentre for the Built and Natural EnvironmentCoventry UniversityCoventryCV15FBUK

Past builders have developed very low-embodied energy construction techniques optimizing the use of local building *** techniques are a source of inspiration for modern sustainable ***,this know-how was orally transmitted and was lost as earth construction fell into disuse during the 20th century in European *** absence of written documents makes necessary to use an archaeological approach in order to rediscover these construction *** analysis of thin sections collacted in earth building walls was used for the first time to describe cob construction technique and highlighted several typical pedofeatures allowing to clearly identifying this ***,a first comparison of the cob and rammed earth micromorphological features permitted to identify two key factors to distinguish these two techniques,the manufacturing state(solid or plastic)and the organization of the material in the wall.

关键词： Cob Rammed earth Micromorphology Architectural heritage Pedology

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