Results 131 to 140 of about 1,793 (174)

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
openaire   +1 more source

Synthesis of Paralytic Shellfish Toxins: Saxitoxins

2020
Saxitoxin (STX), which is isolated as a paralytic shellfish toxin, is an inhibitor of voltage-gated sodium channels (NaVCh) such as tetrodotoxin. STX has two guanidine functional groups in its tricyclic core structure, and every carbon except at C11 connects heteroatoms.
Hayate Ishizuka, Kazuo Nagasawa
openaire   +1 more source

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
openaire   +2 more sources

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

Performance of different extraction methods for paralytic shellfish toxins and toxin stability in shellfish during storage

Analytical and Bioanalytical Chemistry, 2021
Accurate analysis of paralytic shellfish toxins (PSTs) in shellfish is important to protect seafood safety and human health. In this study, the performance of different extraction protocols for PSTs from scallop tissues is compared and discussed, including regular extraction solvents hydrochloric acid (HCl) and acetic acid (AcOH) followed by heating ...
Lei, Zhang, Jiangbing, Qiu, Hong, Hu, Fanping, Meng, Aifeng, Li   +4 more
openaire   +2 more sources

Laboratory bioproduction of paralytic shellfish toxins in dinoflagellates

2001
Publisher Summary It is feasible to produce milligram quantities of Paralytic shellfish toxins (PSTs) as a supply of the pure toxins for R&D and monitoring studies using the algal culture approach. PSTs are a family of marine biotoxins produced by a number of toxic dinoflagellates involved in harmful algal blooms or red tides.
Hsieh, DPH, Wang, DZ, Chang, GH
openaire   +3 more sources

Determination of paralytic shellfish poisoning (PSP) toxins in UK shellfish

Harmful Algae, 2007
Abstract A study was conducted to aid the interpretation of data generated by parallel testing of the qualitative Jellett Rapid Test (JRT) and the mouse bioassay (MBA) for detection of paralytic shellfish poisoning (PSP) toxins within the UK statutory shellfish biotoxin monitoring programme.
E.A. Turrell, J.P. Lacaze, L. Stobo
openaire   +1 more source

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
openaire   +3 more sources

Quantitation of paralytic shellfish toxins using mouse brain synaptoneurosomes

Chemosphere, 2004
A membrane potential assay based on synaptoneurosomes prepared from mouse brain was evaluated further for its utility in estimating saxitoxin and related bioactives. Saxitoxin concentrations quantitated in mussel extracts by the synaptoneurosomal technique correlated well with spiked concentrations in these samples (r2 = 0.995; slope=1.048).
Laurence S, David, Russell A, Nicholson
openaire   +2 more sources

Radioimmunoassay of paralytic shellfish toxins in clams and mussels

Bulletin of Environmental Contamination and Toxicology, 1987
Shellfish contaminated with paralytic shellfish poisons (PSP) compromise human health. The threat of this contamination results in enormous economic losses in the recreational and commercial exploitation of shellfish resources in the affected areas. Most states deal with the PSP problem either by prohibiting the collection of shellfish during certain ...
G C, Yang, S J, Imagire, P, Yasaei, E P, Ragelis, D L, Park, S W, Page, R E, Carlson, P E, Guire   +7 more
openaire   +2 more sources