Results 41 to 50 of about 6,170 (214)

Polycyclic N-Hetero Compounds. XL. Reaction of Cyclic Ketones with Trisformylaminomethane [PDF]

open access: yes, 1991
Reactions of cyclic ketones such as α-tetralone, 1,3-cyclohexanedione, or naphthalenedione with formamide or trisformylaminomethane (TFAM) have shown to form polyclic fused pyrimidines by us.
Hirota, Kazuhiro   +3 more
core   +1 more source

Calmodulin‐Like Protein MfCML50 Interacts With Carveol Dehydrogenase in Medicago falcata to Regulate Cold Tolerance Through Mediating ROS Homeostasis

open access: yesPlant Biotechnology Journal, EarlyView.
ABSTRACT Low temperature triggers Ca2+ signalling and reprogramming of gene expression and metabolism in plants. However, how the Ca2+ signal is transduced to the downstream metabolic pathways remains unknown. The involvement of a cold‐induced calmodulin‐like protein, MfCML50, from Medicago falcata in regulation of cold tolerance was examined in the ...
Bohao Geng   +6 more
wiley   +1 more source

Changes in essential oil composition of peppermint (Mentha x piperita L.) affected by yeast extract and salicylic acid foliar application

open access: yesJournal of Medicinal Plants, 2021
Background: Peppermint (Mentha x piperita L.) is one of the most important medicinal plants which used in food, pharmaceutical, perfumery, and flavoring industry.
M Motiee, M Abdoli
doaj  

Stereochemical Studies on a New Ciramadol Analogue by NMR-Spectroscopy [PDF]

open access: yes, 1994
The absol. configuration of a Ciramadol analogue obtained from (-)-menthone is established by 'H-NMR-. simulated NMR-, COSY-90-, and NOEmeasurements. The final compound 2-(a-1 -pyrrolidino)benzy 1-4-isopropyl- 1 -methyl-cyclohexan-3-one (4b), e.g..
Akgün, H.   +4 more
core  

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela   +7 more
wiley   +1 more source

Functional Characterization and Structural Insights Into Stereoselectivity of Pulegone Reductase in Menthol Biosynthesis

open access: yesFrontiers in Plant Science, 2021
Monoterpenoids are the main components of plant essential oils and the active components of some traditional Chinese medicinal herbs like Mentha haplocalyx Briq., Nepeta tenuifolia Briq., Perilla frutescens (L.) Britt and Pogostemin cablin (Blanco) Benth.
Chanchan Liu   +16 more
doaj   +1 more source

Present and future potential of plant-derived products to control arthropods of veterinary and medical significance [PDF]

open access: yes, 2014
The use of synthetic pesticides and repellents to target pests of veterinary and medical significance is becoming increasingly problematic. One alternative approach employs the bioactive attributes of plant-derived products (PDPs). These are particularly
Finn, Robert   +3 more
core   +1 more source

Aromatic Medicinal Plants of the Lamiaceae Family from Uzbekistan: Ethnopharmacology, Essential Oils Composition, and Biological Activities [PDF]

open access: yes, 2017
Plants of the Lamiaceae family are important ornamental, medicinal, and aromatic plants, many of which produce essential oils that are used in traditional and modern medicine, and in the food, cosmetics, and pharmaceutical industry.
Egamberdieva   +11 more
core   +2 more sources

Citrus reticulata Blanco: A Review on Chemical Composition and Biological Activities

open access: yesChemistry &Biodiversity, Volume 23, Issue 1, January 2026.
This review compiles chemical information and biological activities from 49 studies on Citrus reticulata. The fruit peels stand out for their high content of methoxylated monoterpenes and flavonoids with antioxidant, anti‐inflammatory, and antimicrobial activities.
José Walber Gonçalves Castro   +3 more
wiley   +1 more source

Effect of liming on yield and quality of peppermint and Sachalin mint in fine sand soil of Northern Finland [PDF]

open access: yes, 2003
Soil acidity commonly limits plant production in the fine sand soil of Northern Finland, which often has a low pH (5.5-6.5) and contains low levels of Ca and Mg.
Aflatuni, Abbas   +3 more
core  

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