Results 251 to 260 of about 93,597 (383)

Chemical Composition, Antioxidant, and Antibacterial Activities of Mezilaurus duckei (Lauraceae)

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Mezilaurus duckei, a Brazilian endemic tree species found exclusively in the Amazon Rainforest, is primarily exploited for timber in construction. Due to its endangered status, this study aimed to investigate the chemical profile and biological properties of the ethanolic extract and its phases derived from M. duckei leaves. Chemical profiling
Bruna S. Moroto   +7 more
wiley   +1 more source

DPPH‐based Antioxidant Screening and Cellulase‐assisted Hydrodistillation of Matourea azurea: Improved Essential Oil Yield and Density Functional Theory Insights Into a Rare Terpene

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Essential oils are rich in bioactive molecules like terpenes and phenolic compounds, but have low yields, making process efficiency crucial. Enzyme‐assisted hydrodistillation is a sustainable alternative, enhancing oil release by degrading the cell wall.
Júlio César Gonçalves de Souza   +7 more
wiley   +1 more source

Larvicidal Activity of Phytochemicals From Handroanthus impetiginosus Seeds Against Culex quinquefasciatus

open access: yesChemistry &Biodiversity, EarlyView.
The hexane extract was obtained from the seeds of H. impetiginosus, from which fatty acids and FAMEs were obtained. The three samples were tested on C. quinquefasciatus larvae, promoting mortality with moderate LC50 values. The hexane extract was analyzed by gas chromatographymass spectrometry (GC‐MS), and the most abundant compounds were ethyl oleate (
Luana Cristina Diniz Santos   +6 more
wiley   +1 more source

Building a Unified Tertiary Education System: Trends and Propositions to Provoke Discussion

open access: yesNew Directions for Community Colleges, EarlyView.
ABSTRACT This article discusses some of the macro‐trends impacting and changing the post‐secondary or tertiary education landscape across Organization for Economic Co‐operation and Development (OECD) countries. It argues that ongoing geopolitical and geo‐economic shifts, demographic transitions, and an ageing population, technological and digital ...
Ellen Hazelkorn
wiley   +1 more source

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