Results 31 to 40 of about 7,965 (217)

Quantitative 1H NMR metabolomics reveals extensive metabolic reprogramming of primary and secondary metabolism in elicitor-treated opium poppy cell cultures

open access: yesBMC Plant Biology, 2008
Background Opium poppy (Papaver somniferum) produces a diverse array of bioactive benzylisoquinoline alkaloids and has emerged as a model system to study plant alkaloid metabolism.
Vogel Hans J   +3 more
doaj   +1 more source

Unearthed opium: development of a UHPLC-MS/MS method for the determination of Papaver somniferum alkaloids in Daunian vessels

open access: yesFrontiers in Chemistry, 2023
Introduction: The analysis of organic residue in ancient vessels to investigate early-age civilization habits is an important archeological application that needs advanced analytical methods. However, these procedures should meet inherent requisites such
Flaminia Vincenti   +13 more
doaj   +1 more source

Chemometric approach for development, optimization and validation of HILIC methods used for the determination of alkaloids from poppy straw

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2014
Two hydrophilic interaction liquid chromatography (HILIC) methods for simultaneous determination of the major alkaloids (morphine, codeine, thebaine, oripavine, papaverine and noscapine) in opium poppy straw (Papaver somniferum L., Papaveraceae) were ...
Jelena Acevska   +6 more
doaj   +1 more source

Investigation of Alkaloids in Opium Poppy (Papaver somniferum L.) Varieties and Hybrids

open access: yesJournal of Agricultural Sciences, 2021
This study aimed to investigate the proportions of morphine, thebaine, noscapine, codeine, oripavine and papaverine alkaloids in poppy varieties and hybrids. Nine parents and 36 hybrid lines were used in the trial.
Levent Yazici, Güngör Yılmaz
doaj   +1 more source

Evaluation the Variation of Morphine Percentage in Different Turkish Opium Poppy (Papaver somniferum L.) Lines in Three Years [PDF]

open access: yesJournal of Medicinal Plants and By-products, 2015
Opium poppy (Papaver somniferum L.) has two major products: alkaloids in the capsules and the seeds. It is known that opium poppy today contains alkaloid in great quantities.
Amir Rahimi   +2 more
doaj  

Direct Ambient Mass Spectrometry for Food, Beverage, and Agricultural Sample Analysis and Research

open access: yesMass Spectrometry Reviews, Volume 45, Issue 2, Page 429-452, March/April 2026.
ABSTRACT Ambient and direct mass spectrometry (MS) methods are becoming increasingly used for the rapid analysis of food, beverage and agricultural samples. Novel ionization approaches combined with targeted, or untargeted workflows provide analytical outcomes within a greatly reduced time period compared to traditional separation science coupled with ...
Leigh M. Schmidtke   +3 more
wiley   +1 more source

Determination of relative response factors of the opium alkaloids with HPLC-DAD [PDF]

open access: yesMakedonsko Farmacevtski Bilten, 2012
In this work, a convenient method for determination of relative UV response factors (RRFs) of morphine, codeine, thebaine, oripavine, noscapine and papaverine by high performance liquid chromatography (HPLC) equipped with a diode array detector (DAD) was
Jelena Acevska   +5 more
doaj  

Intraspecific taxonomy of plant genetic resources – Important for differentiation of medicinal and aromatic plants?

open access: yesJulius-Kühn-Archiv, 2016
Taxonomy of plant genetic resources is an important input in characterising and evaluating cultivated plants and essential for identification and documentation of the diversity of genebank collections.
Lohwasser, Ulrike   +2 more
doaj   +1 more source

Changing Trends in the Use of Kratom (Mitragyna speciosa) in Southeast Asia [PDF]

open access: yes, 2017
This is the pre-peer reviewed version of the following article: Darshan Singh, Suresh Narayanan, Balasingam Vicknasingam, Ornella Corazza, Rita Santacroce, and Andres Roman-Urrestarazu, ‘Changing trends in the use of kratom (Mitragyna speciosa) in ...
Corazza, Ornella   +5 more
core   +2 more sources

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

open access: yesThe Chemical Record, Volume 26, Issue 3, March 2026.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy