Results 151 to 160 of about 4,058 (201)

Opiate concentrations following the ingestion of poppy seed products – evidence for `the poppy seed defence'

Forensic Science International, 1998
The universally accepted 300 ng/ml cut-off limit for opiate assays stated to be mandatory for all drug screening laboratories by the Substance Abuse and Mental Health Services Administration, has been questioned recently due to positive results being obtained following the ingestion of poppy seed containing food products.
C, Meadway, S, George, R, Braithwaite
exaly   +3 more sources

Lipolytic activity of poppy seed

Food / Nahrung, 1980
AbstractCrude lipase emulsion from poppy seed hydrolyses its endogenous substrate at an optimum pH of 4.9 and optimum temperature of 22‐25°C. The lipase emulsion is stable up to 50°C. The enzyme is activated by low concentration of calcium ions; at higher concentrations a partial activity drop occurs. The addition of sodium chloride decrease the lipase
M, Holasová, J, Blattná
openaire   +2 more sources

Poppy Seeds: Implications of Consumption

Medicine, Science and the Law, 1992
Three white poppy seed samples of Papaver somniferum L were found to contain total morphine (free and bound) in the range 58.4 to 62.2μg/g seeds and total codeine (free and bound) in the range 28.4 to 54.1μg/g seeds. Soaking seeds in water was found to remove 45.6 per cent of the free morphine and 48.4 per cent of the free codeine. In ingesting a curry
D S, Lo, T H, Chua
openaire   +2 more sources

Immediate‐type allergy caused by poppy seed

Allergy: European Journal of Allergy and Clinical Immunology, 2000
Axel Trautmann
exaly   +3 more sources

Investigation of Turkish Poppy Seeds and Seed Oils

Chemistry of Natural Compounds, 2004
The oil yields, fatty acid compositions, and total protein contents of three varieties of Turkish poppy were investigated. Solvent extraction of yellow seed gave the highest oil yield (49.2%), while white seed (36.8%) and blue seed (33.6) showed considerably lower yields.
Azcan, Nezihe, Kalender, BO, Kara, Mustafa   +2 more
openaire   +2 more sources

A pinch of poppy seeds and a drop of secrecy

Emerald Emerging Markets Case Studies, 2022
Learning outcomes The learning outcomes of this study are as follows: use advanced frameworks and tools to convey complex ideas related to corporate social responsibility and ethics; apply relevant concepts and theories of ethics and corporate governance to a practical situation while making decisions; demonstrate understanding of the importance of ...
Ayesha Siddiqi, Virginia Bodolica
openaire   +1 more source

The poppy seed defense: a novel solution

Drug Testing and Analysis, 2013
A major toxicological challenge is distinguishing whether morphine in urine, in the absence of 6‐monoacetylmorphine (6‐MAM), originates from ‘street’ heroin use or poppy seed ingestion. Manufacturing byproducts from the synthesis of illicit heroin include those that originate from the reaction of acetic anhydride with the alkaloid impurity, thebaine ...
Chen, P, Braithwaite, R A, George, C, Hylands, P J, Parkin, M C, Smith, N W, Kicman, A T   +6 more
openaire   +3 more sources