Results 81 to 90 of about 5,208 (223)

Seasonal variability of the essential oil of Hesperozygis ringens (Benth.) Epling.

Brazilian Journal of Biology
This study was developed to evaluate the effect of seasonality on the yield and chemical composition of the essential oil (EO) of Hesperozygis ringens (Benth.) Epling, a native species from the Brazilian Pampa.
C. G. Pinheiro, C. M. Machado, L. P. Amaral, D. T. Silva, C. A. A. Almeida, S. J. Longhi, C. A. Mallmann, B. M. Heinzmann   +7 more
doaj   +1 more source

Assessmentof phytochemical characteristics of two medicinal plants species, Ziziphora tenuir and Teucrium polium, collected from Sarbisheh region

مجله دانشگاه علوم پزشکی بیرجند, 2023
Background and Aims: Ziziphora tenuir and Teucrium polium belong to the Labiatae family. So far, 25 and 4 species of Ziziphora tenuir have been reported in the world and Iran, respectively, which are used for novel digestive disorders, common cold ...
Hamid Bagherpour, Mohammad Javad Seghatoleslami, Ali AllahResani, Gholamreza Mousavi   +3 more
doaj  

Radical Retrosynthesis of Natural Products Enabled by Iron‐Based Reductive Olefin Coupling

Angewandte Chemie Novit, Volume 2, Issue 1, March 2026.
This review highlights iron‐catalyzed reductive olefin coupling (ROC)—a strategy for C─C bond formation driven by metal‐hydride hydrogen atom transfer (MHAT)—as a key tool in natural products synthesis. This review surveys dozens of total syntheses employing ROC‐based strategies, highlighting its power to forge strained rings, quaternary centers, and ...
Griffin L. Barnes, Alex L. Rerick, Phil S. Baran   +2 more
wiley   +1 more source

Identification of the essential oils composition from four ecotypes of Mentha longifolia (L.) Huds. growing wild in Isfahan province, Iran [PDF]

Journal of BioScience and Biotechnology, 2015
Mentha longifolia L., commonly known as wild mint, belongs to family Lamiaceae. The aim of this study was to identify the chemical composition of essential oil extracted from four ecotypes of Mentha longifolia L.
REZA ABEDI, AHMAD REZA GOLPARVAR, AMIN HADIPANAH   +2 more
doaj  

Phytochemical Variability of Mentha L. Species Over Three Growing Seasons

Chemistry &Biodiversity, Volume 23, Issue 3, March 2026.
Species of the genus Mentha are evaluated over three years for phytochemical composition and bioactivity using spectrophotometric, HPLC‐DAD, and GC‐MS analyses of methanolic extracts and essential oils. Clear genotype‐dependent differences are observed, with Mentha × piperita showing higher phenolic content and antioxidant activity than M.
Helena Pluháčková, Barbora Kudláčková, Marián Šinko, Markéta Michutová, Jarmila Neugebauerová, Lenka Svojanovská   +5 more
wiley   +1 more source

Peck or pass? Individual‐level testing of a bird‐repellent seed coating

Pest Management Science, Volume 82, Issue 3, Page 2333-2339, March 2026.
Using sequential unique‐choice tests on an urban population of ringed carrion crows, we show that black pepper oleoresin‐treated maize seeds were avoided, while color alone had no deterrent effect. Abstract Background Carrion crows (Corvus corone) are a major depredating species of spring crops across European agroecosystems, especially during sowing ...
Amal Chantoufi, Alice Baux, Frédéric Jiguet   +2 more
wiley   +1 more source

Safety and efficacy of a feed additive consisting of a tincture derived from the leaves or the aerial parts of Mentha × piperita L. (peppermint tincture) for use in all animal species (FEFANA asbl)

EFSA Journal
Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of a tincture from the leaves or aerial parts of Mentha × piperita L.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Ilen Röhe, Katerina Theodoridou, Maria de Lourdes Bastos, Emilio Benfenati, Paul Brantom, Andrew Chesson, Josef Schlatter, Johannes Westendorf, Paola Manini   +23 more
doaj   +1 more source

Fungicidal Properties of the Essential Oil of Hesperozygis marifolia on Aspergillus flavus Link

Molecules, 2011
The chemical composition of the essential oil from Hesperozygis marifolia was analyzed by gas chromatography-mass spectrometry (GC-MS), and fourteen compounds were identified. (R)-pulegone (40.75%), isomenthone (30.34%) and menthone (4.46%) were found to
Marco Martín González-Chávez, Norma Cecilia Cárdenas-Ortega, Salud Pérez-Gutiérrez, Cristina Andrea Méndez-Ramos   +3 more
doaj   +1 more source

Biotransformations of R-(+)-pulegone and menthofuran in vitro: chemical basis for toxicity

, 1990
Incubation of R-(+)-pulegone(I) with PB-induced rat liver microsomes in the presence of NADPH resulted in the formation of menthofuran(II) and 2'-Z-[2'-keto-4'-methylcyclohexylidene] propanol (III, 9-hydroxy pulegone) as the major and minor metabolites ...
Madyastha, K. M., Paul Raj, C.
core   +1 more source

Essential oils of Mentha pulegium and Mentha rotundifolia from Uruguay

Brazilian Archives of Biology and Technology, 2002
Essential oils obtained by hydrodistillation from leaves of Mentha pulegium L. and Mentha rotundifolia (L.) Huds. from Uruguay were analysed by GC-FID and GC-MS. Oxygen-containing monoterpenes were the main group of constituents in both oils.
Daniel Lorenzo, Daniel Paz, Eduardo Dellacassa, Philip Davies, Roser Vila, Salvador Cañigueral   +5 more
doaj   +1 more source