Results 11 to 20 of about 184,232 (306)

Alkaloids in Marine Algae

open access: yesMarine Drugs, 2010
This paper presents the alkaloids found in green, brown and red marine algae. Algal chemistry has interested many researchers in order to develop new drugs, as algae include compounds with functional groups which are characteristic from this particular ...
Ekrem Sezik
exaly   +3 more sources

Radical Approaches to Alangium and Mitragyna Alkaloids [PDF]

open access: yes, 2010
The work presented in this thesis has focused on the development of novel and concise syntheses of Alangium and Mitragyna alkaloids, and especial approaches towards (±)-protoemetinol (a), which is a key precursor of a range of Alangium alkaloids such as ...
Palframan, M J
core   +7 more sources

The Arsenal of Bioactive Molecules in the Skin Secretion of Urodele Amphibians

open access: yesFrontiers in Pharmacology, 2022
Urodele amphibians (∼768 spp.), salamanders and newts, are a rich source of molecules with bioactive properties, especially those isolated from their skin secretions.
Ana L. A. N. Barros   +13 more
doaj   +1 more source

A comparative review on the anti-nutritional factors of herbal tea concoctions and their reduction strategies

open access: yesFrontiers in Nutrition, 2022
Tea is an important beverage consumed worldwide. Of the different types of tea available, herbal tea is an important beverage consumed owing to its popularity as a drink and stress relieving factors, several different herbal concoctions made from seeds ...
Neeta Pathaw   +9 more
doaj   +1 more source

Optimization of the extraction process and metabonomics analysis of uric acid-reducing active substances from Gymnadenia R.Br. and its protective effect on hyperuricemia zebrafish

open access: yesFrontiers in Nutrition, 2022
BackgroundAs Gymnadenia R.Br. (Gym) has an obvious uric acid-lowering effect, but its specific bioactive substances and mechanism are still unclear. The key metabolites and pathways used by Gym to reduce uric acid (UA) were identify.MethodsAn optimized ...
Tianrong Chen   +7 more
doaj   +1 more source

Soil-borne microorganisms and soil-type affect pyrrolizidine alkaloids in Jacobaea vulgaris [PDF]

open access: yes, 2009
Secondary metabolites like pyrrolizidine alkaloids (PAs) play a crucial part in plant defense. We studied the effects of soil-borne microorganisms and soil-type on pyrrolizidine alkaloids in roots and shoots of Jacobaea vulgaris.
Veen, J.A., van   +3 more
core   +2 more sources

Alkaloid of Rhynchostylis retusa as Green Inhibitor for Mild Steel Corrosion in 1 M H2SO4 Solution

open access: yesElectrochem, 2022
Alkaloids are aromatic hydrocarbons with nitrogen as heteroelements in the ring structure that are responsible for bonding with the metal surface and help to reduce corrosion of metals such as mild steel (MS) in an acidic medium.
Amrita Chapagain   +5 more
doaj   +1 more source

Mediterranean White Lupin Landraces as a Valuable Genetic Reserve for Breeding

open access: yesPlants, 2021
Legumes crops are important for sustainable agriculture and global food security. Among them white lupin (Lupinus albus L.), is characterized by exceptional protein content of high nutritional value, competitive to that of soybean (Glycine max) and is ...
Ioannis Zafeiriou   +5 more
doaj   +1 more source

A New Antimicrobial Phenylpropanol from the Leaves of Tabernaemontana inconspicua Stapf. (Apocynaceae) Inhibits Pathogenic Gram-Negative Bacteria

open access: yesAntibiotics, 2022
A chemical investigation of the leaves of Tabernaemontana inconspicua Stapf. led to the isolation of a new phenylpropanol derivative, namely irisdichototin G (1), together with nine known compounds, including one polyol derivative, dambonitol (2); three ...
Lidwine Ngah   +9 more
doaj   +1 more source

Optimization through a Box–Behnken Experimental Design of the Microwave-Assisted Extraction of the Psychoactive Compounds in Hallucinogenic Fungi (Psylocibe cubensis)

open access: yesJournal of Fungi, 2022
Hallucinogenic fungi, mainly those from the Psilocybe genus, are being increasingly consumed even though there is no control on their culture conditions.
Curro Polo-Castellano   +5 more
doaj   +1 more source

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