Seasonal influence on the essential oil chemical composition of Pohl ex Benth.: a valuable plant from Marajó, Brazil.

Essential oils (EOs) from the genus have been reported as bactericides and fungicides. However, the properties of these oils can be affected by climatic factors, as well as the collection period, which promotes changes in the chemical composition of the oil. In this context, this study aimed to evaluate the climatological influences on the chemical composition of the essential oil from the leaves of .

Exploring the impact of seasonal variations on the chemical composition, antinociceptive, and anti-inflammatory properties of Benth. essential oil.

leaves infusions are relevant in ethnopharmacology for treating colds, coughs, headaches, and asthma. The essential oil chemical composition of a specimen was monthly monitored from October 2021 to July 2022 to evaluate the climatic influences on its yield and chemical composition and antinociceptive, andanti-inflammatory properties. The leaves, collected monthly over a 10-month period, were submitted to hydrodistillation.

Seasonality, Composition, and Antioxidant Capacity of Limonene/δ-3-Carene/()-Caryophyllene Essential Oil Chemotype from the Brazilian Amazon: A Chemometric Approach.

Raddi is widely used in traditional Brazilian medicine to treat respiratory diseases, as an antiseptic, anti-inflammatory, and hemostatic agent. This study aimed to evaluate the influence of climatic parameters on the yield, antioxidative capacity, and chemical composition of the leaf essential oil. The specimen was collected monthly from October 2021 to September 2022.

Seasonal Variability of a Caryophyllane Chemotype Essential Oil of Vahl Occurring in the Brazilian Amazon.

Vahl is a native and non-endemic myrtaceous species of the Brazilian Amazon. Due to few botanical and phytochemical reports of this species, the objective of the present work was to evaluate the seasonal variability of their leaf essential oils, performed by GC and GC-MS and chemometric analysis. The results indicated that the variation in oil yields (0.

Arbuscular Mycorrhizal Fungi Colonization Promotes Changes in the Volatile Compounds and Enzymatic Activity of Lipoxygenase and Phenylalanine Ammonia Lyase in L. 'Bragantina'.

Arbuscular mycorrhizal fungi (AMF) have been used to promote numerous benefits to plants. In this study, we evaluated the symbiosis between AMF species (, ) and L. 'Bragantina'.

of the Neotropics: A Review of the Phytochemistry and Pharmacology.

The oleoresin of trees has been widely used as a traditional medicine in Neotropical regions for thousands of years and remains a popular treatment for a variety of ailments. The copaiba resins are generally composed of a volatile oil made up largely of sesquiterpene hydrocarbons, such as β-caryophyllene, α-copaene, β-elemene, α-humulene, and germacrene D. In addition, the oleoresin is also made up of several biologically active diterpene acids, including copalic acid, kaurenoic acid, alepterolic acid, and polyalthic acid.

Essential Oils from Neotropical Piper Species and Their Biological Activities.

The genus is the most representative of the Piperaceae reaching around 2000 species distributed in the pantropical region. In the Neotropics, its species are represented by herbs, shrubs, and lianas, which are used in traditional medicine to prepare teas and infusions. Its essential oils (EOs) present high yield and are chemically constituted by complex mixtures or the predominance of main volatile constituents.

Chemical Diversity, Biological Activity, and Genetic Aspects of Three Ocotea Species from the Amazon.

species present economic importance and biological activities attributed to their essential oils (EOs) and extracts. For this reason, various strategies have been developed for their conservation. The chemical compositions of the essential oils and DNA sequences of , , and were subjected to comparison with data from , , and , previously reported.

Cardiovascular effects of 1-nitro-2-phenylethane, the main constituent of the essential oil of Aniba canelilla, in spontaneously hypertensive rats.

This study investigated the cardiovascular responses to the essential oil of Aniba canelilla (EOAC) and its main constituent 1-nitro-2-phenylethane (NP) in spontaneously hypertensive rats (SHRs). In anesthetized SHRs, intravenous (i.v.