Results 121 to 130 of about 115,323 (160)

Electrophoretic analysis of paralytic shellfish toxins

Journal of Environmental Science and Health . Part A: Environmental Science and Engineering, 1977
Abstract Seven paralytic shellfish poisons (PSP) from the dinoflagellate Gonyaulax tamarensis and PSP infested shellfish have been separated by cellulose acetate membrane strip electrophoresis. The acid hydrolysis products of two of these, saxitoxin and neosaxitoxin, are analyzed by electrophoresis.
William E. Fallon, Yuzuru Shimizu
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Dinoflagellate Gymnodinium catenatum as the source of paralytic shellfish toxins in Tasmanian shellfish

Toxicon, 1987
Paralytic shellfish toxins in both cultured cells and natural phytoplankton blooms of the dinoflagellate Gymnodinium catenatum from inshore Tasmanian waters (Australia) were analyzed by high performance liquid chromatography, thin layer chromatography and electrophoresis techniques. The dinoflagellate toxins were dominated by low potency sulfocarbamoyl
Y, Oshima, M, Hasegawa, T, Yasumoto, G, Hallegraeff, S, Blackburn   +4 more
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A toxin profile for shellfish involved in an outbreak of paralytic shellfish poisoning in India

Toxicon, 1990
Toxin profiles of clams and oysters involved in the outbreak of paralytic shellfish poisoning in India in 1983 were studied by a liquid chromatographic technique. Gonyautoxins 1, 2, 3, 4 and 8, and 11-epigonyautoxin 8 appeared to be the major toxins along with small amounts of saxitoxin, neosaxitoxin, decarbamoylsaxitoxin, decarbamoylgonyautoxins 2 and
I, Karunasagar, I, Karunasagar, Y, Oshima, T, Yasumoto   +3 more
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Exposure assessment to paralytic shellfish toxins through the shellfish consumption in Korea

Food Research International, 2018
Paralytic shellfish poisoning is caused by saxitoxin and its analogues. The paralytic shellfish toxins (PSTs) are produced by marine dinoflagellates and can be accumulated in filter feeding shellfish, such as mussel, clam, oyster and ark shell. The worldwide regulatory limits for PSTs in shellfish are set at 80 μg STX eq./100 g meat and this is widely ...
Choonshik, Shin, Hyejin, Jo, Sheen-Hee, Kim, Gil-Jin, Kang   +3 more
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Instrumental Methods for Paralytic Shellfish Toxins

2015
Paralytic shellfish toxins (PSTs) are naturally occurring marine compounds which in some instances result in significant consumer sickness following consumption of contaminated shellfish products. The toxins are found in shellfish grown in marine waters throughout the world, and many instances of human intoxication are reported annually.
Begoña Ben-Gigirey, Andrew David Turner, Ana Gago-Martínez   +2 more
openaire   +1 more source

Construction of a paralytic shellfish toxin analyzer and its application

Analytical Biochemistry, 1978
Abstract A simple and rapid liquid chromatographic-fluorometric analyzer for quantitating paralytic shellfish toxins is described. Its capability and limitations are discussed.
L J, Buckley, Y, Oshima, Y, Shimizu
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Development of reference materials for paralytic shellfish poisoning toxins.

Journal of AOAC International, 2001
A project was undertaken to develop mussel reference materials that were certified for their mass fractions of saxitoxin and decarbamoyl-saxitoxin. Fifteen laboratories from various European countries participated. Three of these had major responsibility for substantial parts of the work and overall coordination of the project.
van Egmond, HP, Mourino, A, Burdaspal, PA, Boenke, A   +3 more
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Solid-Phase Radioreceptor Assay for Paralytic Shellfish Toxins

Analytical Biochemistry, 1993
Sodium channels obtained from rat brain membrane preparations were coated onto microtiter plates and used to develop a direct solid-phase binding assay. The tritiated sodium channel blocker saxitoxin ([3H]-saxitoxin; STX) was used to detect toxins in paralytic shellfish poisoning (PSP) by measuring the competitive displacement of other toxins.
M R, Vieytes, A G, Cabado, A, Alfonso, M C, Louzao, A M, Botana, L M, Botana   +5 more
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Use of a channel biosensor for the assay of paralytic shellfish toxins

Toxicon, 1998
Gonyautoxin (GTX), saxitoxin (STX) and tetrodotoxin (TTX), also known as paralytic shellfish poisons (PSP), block Na+ channels, including those in the frog bladder membrane. A tissue biosensor has been developed, consisting of a Na+ electrode covered with a frog bladder membrane integrated within a flow cell. The direction of Na+ transfer, investigated
B S, Cheun, M, Loughran, T, Hayashi, Y, Nagashima, E, Watanabe   +4 more
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Standardized extraction method for paralytic shellfish toxins in phytoplankton

Journal of Applied Phycology, 1995
The optimal conditions were established for extraction of paralytic shellfish toxins from a Danish clone of Alexandrium tamarense using extraction with acetic acid and HCl in the concentration range 0.01–1.0 N. Physical destruction of the cells was investigated microscopically to select the most efficient extraction procedure.
Ravn, Helle, Anthoni, Uffe, Christophersen, Sven Carsten, Nielsen, Per H., Oshima, Y.   +4 more
openaire   +2 more sources