Results 1 to 10 of about 183,064 (111)
Pyrrolizidine Alkaloids in Food on the Italian Market
Molecules, 2023 Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by over 6000 plant species worldwide. PAs enter the food chain through accidental co-harvesting of PA-containing weeds and through soil transfer from the living plant to surrounding ...
Mariantonietta Peloso +5 more
doaj +2 more sources
Foods, 2020 Recent and unexpected food alerts about relatively high amounts of pyrrolizidine alkaloids in oregano samples have stressed the need to develop analytical strategies to ensure food safety in this type of foodstuff.
Sergio Izcara +3 more
doaj +2 more sources
Pyrrolizidine Alkaloids: Chemistry, Pharmacology, Toxicology and Food Safety
International Journal of Molecular Sciences, 2018 Pyrrolizidine alkaloids (PA) are widely distributed in plants throughout the world, frequently in species relevant for human consumption. Apart from the toxicity that these molecules can cause in humans and livestock, PA are also known for their wide ...
Rute Moreira +2 more
exaly +2 more sources
Pyrrolizidine alkaloids: An update on their metabolism and hepatotoxicity mechanism
Liver Research, 2019 Pyrrolizidine alkaloids (PAs) are among the most hepatotoxic natural compounds that are widely distributed throughout the world. Most PAs are metabolically activated to trigger toxicity.
Jie Xu +5 more
doaj +2 more sources
Pyrrolizidine Alkaloids: Biosynthesis, Biological Activities and Occurrence in Crop Plants
Molecules, 2019 Pyrrolizidine alkaloids (PAs) are heterocyclic secondary metabolites with a typical pyrrolizidine motif predominantly produced by plants as defense chemicals against herbivores.
Sebastian Schramm +2 more
doaj +2 more sources
Pyrrolizidine alkaloids from seven wild-growing Senecio species in Serbia and Montenegro [PDF]
Journal of the Serbian Chemical Society, 2009 The genus Senecio (family Asteraceae) is one of the largest in the world. It comprises about 1100 species which are the rich source of pyrrolizidine alkaloids.
BORIS M. MANDIC +7 more
doaj +3 more sources
Food Research International, 2023 Alkaloids are naturally occurring compounds containing basic nitrogen atoms. They are biosynthesized mainly by plants but also by some fungi species.
A. García-Juan +3 more
semanticscholar +1 more source
Pyrrolizidine Alkaloids—Pros and Cons for Pharmaceutical and Medical Applications
International Journal of Molecular Sciences, 2023 Heterocyclic organic compounds named pyrrolizidine alkaloids (PAs) belong to a group of alkaloids and are synthesized by either plants or microorganisms. Therefore, they are naturally occurring secondary metabolites.
Kavindi Jayawickreme +6 more
semanticscholar +1 more source
Independent recruitment of a flavin-dependent monooxygenase for safe accumulation of sequestered pyrrolizidine alkaloids in grasshoppers and moths. [PDF]
PLoS ONE, 2012 Several insect lineages have developed diverse strategies to sequester toxic pyrrolizidine alkaloids from food-plants for their own defense. Here, we show that in two highly divergent insect taxa, the hemimetabolous grasshoppers and the holometabolous ...
Linzhu Wang +3 more
doaj +1 more source
Pyrrolizidine Alkaloid Extraction and Analysis: Recent Updates
Foods, 2022 Pyrrolizidine alkaloids are natural secondary metabolites that are mainly produced in plants, bacteria, and fungi as a part of an organism’s defense machinery.
Sarah F. Al-Subaie +2 more
doaj +1 more source