Results 81 to 90 of about 83,124 (381)

Phytochemical Investigation and Biological Evaluation of Disynaphia filifolia: A Novel Source of Tremetone in Asteraceae

Chemistry &Biodiversity, EarlyView.
ABSTRACT Chemical investigation of Disynaphia filifolia (Hassl.) R.M. King & H. Rob. (Asteraceae) led to the isolation of eight compounds, with tremetone being the major metabolite recovered. Tremetone has been suggested as the toxic compound in Ageratina altissima and Isocoma pluriflora, two species of the Asteraceae family. Although D.
Yasmin Rodrigues Chierici, Anderson Valdiney Gomes Ramos, Drielli Rhiane Peres Colhado Areas, Alana Carla Battistella, Solange Maria Cottica, Tatiana Shioji Tiuman, Helena Mannochio‐Russo, Ana Lucia Tasca Gois Ruiz, Mary Ann Foglio, Marta Regina Barrotto do Carmo, Maria Helena Sarragiotto, Debora Cristina Baldoqui   +11 more
wiley   +1 more source

From Leaves to Reproductive Organs: Chemodiversity and Chemophenetics of Essential Oils as Important Tools to Evaluate Piper mollicomum Kunth Chemical Ecology Relevance in the Neotropics

Plants
Piper mollicomum Kunth (Piperaceae) plays a vital role in the preservation of the Brazilian Atlantic Forest by contributing to the regeneration of deforested areas.
Daniel de Brito Machado, Jéssica Sales Felisberto, George Azevedo de Queiroz, Elsie Franklin Guimarães, Ygor Jessé Ramos, Davyson de Lima Moreira   +5 more
doaj   +1 more source

HS-SPME-GC-MS ANALYSIS OF VOLATILE AND SEMI-VOLATILE COMPOUNDS FROM DRIED LEAVES OF Mikania glomerata Sprengel

Química Nova, 2015
This paper reports on the identification of volatile and semi-volatile compounds and a comparison of the chromatographic profiles obtained by Headspace Solid-Phase Microextraction/Gas Chromatography with Mass Spectrometry detection (HS-SPME-GC-MS) of ...
Esmeraldo A. Cappelaro, Janete H. Yariwake   +1 more
doaj   +1 more source

Structures, Occurrences and Biosynthesis of 11,12,13-Tri-nor-Sesquiterpenes, an Intriguing Class of Bioactive Metabolites

Plants, 2022
The compounds 11,12,13-tri-nor-sesquiterpenes are degraded sesquiterpenoids which have lost the C3 unit of isopropyl or isopropenyl at C-7 of the sesquiterpene skeleton.
Víctor Coca-Ruíz, Ivonne Suárez, Josefina Aleu, Isidro G. Collado   +3 more
doaj   +1 more source

Volatile organic compounds emitted from fungal-rotting beech (Fagus sylvatica) [PDF]

, 2008
Chemo-communication is an important mode of interaction within ecosystem. The living organism in the ecosystem can deliver signals to conspecifics, to co-organisms, and unintentionally to their enemies, by emitting the volatile organic compounds (VOCs ...
Schütz, Stefan, Thakeow, Prodepran, Weißbecker, Bernhard   +2 more
core  

Norisoprenoids, Sesquiterpenes and Terpenoids Content of Valpolicella Wines During Aging: Investigating Aroma Potential in Relationship to Evolution of Tobacco and Balsamic Aroma in Aged Wine

Frontiers in Chemistry, 2018
During wine aging, tobacco and balsamic aroma notes appear. In this paper, volatile compounds directly or potentially related to those aromas have been investigated in Corvina and Corvinone wines during aging. Corvina and Corvinone are two northern-Italy
D. Slaghenaufi, M. Ugliano
semanticscholar   +1 more source

Secondary Metabolites Composition and Their Histochemical Localization in the Fruit of Piper malgassicum Papini, Palchetti, Gori and Rota Nodari (Piperaceae)

Chemistry &Biodiversity, EarlyView.
ABSTRACT The anatomy, histochemistry, and secondary metabolite composition were investigated on the drupes of Piper malgassicum, one of the components of the spice voatsiperifery pepper. The high amount of piperine recorded with high‐performance liquid chromatography with photodiode‐array detection analysis was localized with histochemistry mainly ...
Sara Falsini, Sara Ballantini, Alexander Pittella, Gelsomina Fico, Claudia Giuliani, Enrico Palchetti, Massimo Gori, Stefano Biricolti, Emilio Corti, Alessio Papini, Luca Calamai, Marzia Innocenti   +11 more
wiley   +1 more source

Prompt Formation of Organic Acids in Pulse Ozonation of Terpenes on Aqueous Surfaces [PDF]

, 2010
A major atmospheric process, the gas-phase ozonation of terpenes yields suites of products via a cascade of chemically activated intermediates that ranges from primary ozonides to dioxiranes.
Colussi, A. J., Enami, Shinichi, Hoffmann, Michael R.   +2 more
core   +2 more sources

Unveiling the Chemical Profile of Teucrium chamaedrys subsp. gracile (Batt.) Rech.F. dried Aerial Parts From Algeria

Chemistry &Biodiversity, EarlyView.
ABSTRACT In this paper, the first phytochemical analysis on Teucrium chamaedrys subsp. gracile was reported. The dried aerial parts collected in Algeria were studied, and the analysis was conducted using different techniques: gas chromatography/mass spectrometry (GC/MS) for the fatty acid content, headspace solid‐phase microextraction‐GC‐MS for the ...
Claudio Frezza, Daniela De Vita, Chiara Dal Bosco, Khellaf Rebbas, Hamdi Bendif, Stefania Garzoli   +5 more
wiley   +1 more source

Combinatorial Metabolic Engineering in Saccharomyces cerevisiae for the Enhanced Production of the FPP-Derived Sesquiterpene Germacrene

Bioengineering, 2020
Farnesyl diphosphate (FPP)-derived isoprenoids represent a diverse group of plant secondary metabolites with great economic potential. To enable their efficient production in the heterologous host Saccharomyces cerevisiae, we refined a metabolic ...
Jan Niklas Bröker, Boje Müller, Dirk Prüfer, Christian Schulze Gronover   +3 more
doaj   +1 more source