Results 91 to 100 of about 172,060 (247)
Ecotoxicology and Environmental SafetyPyrrolizidine alkaloids (PAs) are a group of naturally occurring alkaloids widely present in plants. PAs are highly hepatotoxic and have been documented to cause many incidents of human and animal poisoning.
Yanli Zhu +6 more
doaj +1 more source
Safety profile of a special butterbur extract from in migraine prevention with emphasis on the liver
Cephalalgia Reports, 2018 Background: Butterbur supplements are available in the USA and Canada and are commonly used for treating migraines. Petadolex, a special butterbur extract from Petasites hybridus, is a natural herbal product and the only butterbur extract with proven ...
HC Diener, FG Freitag, U Danesch
doaj +1 more source
Core-Shell Columns in High-Performance Liquid Chromatography: Food Analysis Applications [PDF]
, 2016 Theincreased separation efficiency provided by the newtechnology of column packed with core-shell particles in high-performance liquid chromatography (HPLC) has resulted in their widespread diffusion in several analytical fields: from pharmaceutical ...
Preti, Raffaella
core +3 more sources
One in three suffers foodborne illness annually. Safeguarding food quality: a national priority
California Agriculture, 1994 Foodborne illness is a relatively common occurrence. It is estimated that one third of the U.S. population suffers from foodborne illness each year and, according to the Centers for Disease Control and Prevention, about 9,100 die. These
Bennie Osburn
doaj +3 more sources
Food Analytical Methods, 2018 Pyrrolizidine alkaloids (PAs) are secondary metabolites produced by plants as a chemical defense against herbivores. Plants containing PAs are widely distributed in almost all geographical regions posing a risk of honey contamination.
E. Kowalczyk, Z. Sieradzki, K. Kwiatek
semanticscholar +1 more source
Identification and Biosynthetic Studies of the Hydrocarbon Sex Pheromone in Utetheisa ornatrix [PDF]
, 2007 The type II class of sex pheromones found in moths is composed of polyene hydrocarbons and their epoxides. Analysis of Utetheisa ornatrix females by gas chromatography-mass spectrometry and measurement of responses of male moths by coupled gas ...
Adlof, Richard +7 more
core +3 more sources
Identification tools as part of Feedsafety research: the case of ragwort [PDF]
, 2010 Ragwort (Senecio jacobaea) and related species of the genus Senecio are the main source of pyrrolizidine alkaloids. These plants grow in road verges, meadows and production fields and they show up in parties of roughage: grass and alfalfa.
Mulder, Patrick +2 more
core +1 more source
Animal poisonings in Belgium: a review of the past decade [PDF]
, 2010 This review focuses on poisonings in companion animals, including horses, farm animals and wildlife, investigated and recorded during the past ten years at the Laboratory of Toxicology of the Faculty of Veterinary Medicine (Ghent University) and the ...
Croubels, Siska +3 more
core +1 more source
Toxicosis by Plant Alkaloids in Humans and Animals in Colombia
Toxins, 2015 Due to its tropical location, chains of mountains, inter-Andean valleys, Amazon basin area, eastern plains and shores on both the Atlantic and Pacific Oceans, Colombia has many ecosystems and the second largest plant biodiversity in the world. Many plant
Gonzalo J. Diaz
doaj +1 more source
Acetylcholinesterase inhibitory activity of pyrrolizidine alkaloids from Echium confusum Coincy
Natural Product Research, 2017 Four pyrrolizidine alkaloids, namely 7-O-angeloyllycopsamine N-oxide 1, echimidine N-oxide 2, echimidine 3 and 7-O-angeloylretronecine 4, were isolated for the first time from the whole plant ethanolic extract of Echium confusum Coincy, through bioassay ...
H. Benamar +6 more
semanticscholar +1 more source