Results 31 to 40 of about 199,014 (221)

Straightforward analytical method to determine opium alkaloids in poppy seeds and bakery products

open access: yesFood Chemistry, 2018
A straightforward method to determine the content of six opium alkaloids (morphine, codeine, thebaine, noscapine, papaverine and narceine) in poppy seeds and bakery products was developed and validated down to a limit of quantification (LOQ) of 0.1 mg/kg.
Mulder, Patrick P.J.   +6 more
core   +3 more sources

Analysing of Harmonics Affecting the Energy Quality in Opium Alkaloids Plant's Power System [PDF]

open access: yesInternational Journal of Energy Optimization and Engineering, 2016
The quality of energy has been defined to control harmonics caused by non-linear loads and international standards were brought to overcome the harmonic related problems.
Oğuz, Yüksel   +4 more
core   +2 more sources

Relations among alkaloids, cadmium and zinc contents in opium poppy (Papaver somniferum L.)

open access: yesPlant, Soil and Environment, 2006
The effort of this work was to prove whether there exists any relation between stress factors caused by content of cadmium and zinc, and content and composition of opium alkaloids codeine, morphine, narcotine (noscapine) and papaverine contained in poppy
J. Lachman   +4 more
doaj   +2 more sources

Alkaloid binding to opium poppy major latex proteins triggers structural modification and functional aggregation

open access: yesNature Communications, 2022
Opium poppy accumulates alkaloids in the specialized cytoplasm of laticifers known as latex. Here the authors show that the binding of alkaloids to the abundant major latex proteins triggers quaternary structural modification that mediates a functional ...
Natali Ozber   +8 more
doaj   +1 more source

Simultaneous determination of five opium alkaloids in underground waters using molecularly imprinted polymer-modified magnetic nanoparticle based dispersive micro-solid phase extraction followed by high performance liquid chromatography

open access: yesInternational Journal of Environmental Analytical Chemistry, 2021
In this work, we present a fast, simple and selective method for the extraction/preconcentration and determination of five opium alkaloids. This method is based on the combination of dispersive solid phase extraction with magnetic molecularly imprinted ...
N. Nemati   +2 more
semanticscholar   +1 more source

Opium Alkaloids

open access: yes, 2021
Opium alkaloids, derived from crude Papaver somniferum L. plant, are potent analgesic drugs, but their use is limited because of dependence and withdrawal. Opium alkaloids activate the mesocorticolimbic dopaminergic system, which project from the ventral tegmental area to the nucleus accumbens and medial prefrontal cortex, and dopamine is critically ...
Mahluga Jafarova Demirkapu   +1 more
openaire   +2 more sources

Insight into the Impact of Food Processing and Culinary Preparations on the Stability and Content of Plant Alkaloids Considered as Natural Food Contaminants

open access: yesApplied Sciences, 2023
Pyrrolizidine alkaloids, tropane alkaloids and opium alkaloids are natural plant toxins that have recently gained special interest in food safety due to their concerning occurrence in many foods and feeds.
Natalia Casado   +4 more
doaj   +1 more source

Alkaloid diversity in relation to breeding for specifi c alkaloids in opium poppy (Papaver somniferum L.)

open access: yesCzech Journal of Genetics and Plant Breeding, 2010
Papaver somniferum is a chief source of diverse physiologically active alkaloids, required by the pharmaceutical industry. The present study describes the diversity of the alkaloid spectrum of 122 opium poppy accessions of Indian origin by means of a ...
Sudhir Shukla   +4 more
doaj   +1 more source

Scientific Opinion on the risks for public health related to the presence of opium alkaloids in poppy seeds

open access: yesEFSA Journal, 2011
Poppy seeds are obtained from the opium poppy (Papaver somniferum L.). They are used in bakery products, on top of dishes, in fillings of cakes and in desserts and to produce edible oil.
EFSA Panel on Contaminants in the Food Chain (CONTAM)
doaj   +1 more source

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