Toxinas bacterianas

Detección de contaminación por toxinas bacterianas en los alimentos

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Analitos

Toxinas bacterianas

Algunas especies de bacterias producen toxinas. La ingesta de alimentos contaminados con estas toxinas bacterianas puede provocar casos graves de intoxicación alimentaria.

Las especies de bacterias Staphylococcus aureusStaphylococcus hyicus, además de Staphylococcus intermedius, generan una o varias proteínas termoestables que se comportan como enterotoxinas (SET). Las SET son la principal causa de las intoxicaciones alimentarias, junto con Salmonellosis y Campylobacteriosis. Por lo general, se asume que es necesaria una población de 5 x 10⁵ células de cepas de S. aureus enterotoxigénico por gramo de alimento para provocar una intoxicación. Sin embargo, otros estudios han demostrado que una cantidad de tan solo 100 – 200 ng de enteroxinas de Staphylococcus puede provocar síntomas de intoxicación alimentaria.

Las intoxicaciones por SET se asocian frecuentemente a alimentos como pasta, productos cárnicos elaborados, jamón, pasteles, productos con carne de pollo, pescados, productos de pescado, leche, productos lácteos, helado, productos derivados del huevo, ensaladas, repostería y relleno para tartas, así como a preparados a partir de dichos productos alimentarios. Las enterotoxinas del grupo serológico A, B, C, D, E son muy importantes.

La cepa enterohemorrágica de Escherichia E. coli (EHEC) es otra especie de bacteria capaz de producir toxinas. Estas bacterias generan las sustancias tóxicas verotoxina o toxina shiga, motivo por el que también se conocen como E. coli productora de verotoxina (VTEC) o E. coli productora de toxina shiga (STEC). La infección por STEC/VTEC es una de las enfermedades bacterianas relacionadas con los alimentos más frecuente y puede ser potencialmente mortal. Entre las fuentes de contaminación cabe destacar la carne cruda y los productos lácteos no pasteurizados.

Product portfolio

ProductDescriptionNo. of tests/amountArt. No.
RIDASCREEN® SET Total (96 tests)

RIDASCREEN® SET Total is a sandwich enzyme immunoassay for the combined detection of Staphylococcus aureus enterotoxins A, B, C, D and E in fluid and solid foods as well as in bacterial cultures.

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Microtiter plate with 96 wells (12 strips with 8 breakable wells each),
96 determinations.
R4105
RIDASCREEN® SET A,B,C,D,E

RIDASCREEN® SET A,B,C,D,E is a sandwich enzyme immunoassay for the identification of Staphylococcus enterotoxins A, B, C, D and E in fluid and solid foods as well as in bacterial cultures. Based on its sensitivity the RIDASCREEN® SET A,B,C,D,E test …

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Microtiter plate with 96 wells (12 strips with 8 wells each),
one strip is necessary for analysis of one sample,
12 tests in total.
R4101
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ProductDescriptionNo. of tests/amountArt. No.
Compact Dry X-SA

Usage of Compact Dry X-SA is a simple and safe test procedure for determination and quantification of Staphylococcus aureus in foods, cosmetics or raw materials – as well as pharmaceutical raw materials. The ready-to-use plates consist of a special …

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HS9621: 100 nutrient plates,
HS9622: 40 nutrient plates,
four plates are packed in one aluminum bag.
HS9621 / HS9622
Compact Dry EC

Usage of Compact Dry EC is a simple and safe test procedure for determination and quantification of coliform bacteria and E. coli in foods, cosmetics, water or raw materials – as well as pharmaceutical raw materials. The ready-to-use plates consist …

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HS8781: 100 nutrient plates,
HS8782: 40 nutrient plates (HS8782),
four plates are packed in one aluminum bag.
HS8781 / HS8782
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ProductDescriptionNo. of tests/amountArt. No.
SureFast® STEC 4plex ONE

The SureFast® STEC 4plex ONE can be applied for the fast and simple isolation, detection and differentiation of specific DNA sequences of the Escherichia coli virulence factors stx1 (subtype a-d), stx2 (subtype a-g), eae and the Escherichia coli …

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100 reactions F5265
SureFast® MRSA 4plex

The SureFast® MRSA 4plex is a real-time PCR for the direct, qualitative detection and differentiation of methicillin-resistant Staphylococcus aureus (MRSA). The test detects the SCCmec/orfX junction, the mecA/mecC-gene and a specific DNA sequence of …

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100 reactions F7117
TANBead Maelstrom™ 8 Autostage

The TANBead Maelstrom™ 8 Autostage (Taiwan Advanced Nanotech) is a fully automated operating instrument for nucleic acid purification and isolation using magnetic beads and rods. The instrument uses the TANBead patented Maelstrom Spin Mixing …

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Up to 8 samples ZMAL8
SureFast® Escherichia coli Serotype II 4plex

The SureFast® Escherichia coli Serotype II 4plex is a real-time PCR for the direct, qualitative detection and differentiation of specific wzx gene DNA sequences of Escherichia coli O45, wbdl gene DNA sequences of Escherichia coli O111 and ihp1 gene …

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100 reactions F5168
SureFast® Escherichia coli Serotype I 4plex

The SureFast® Escherichia coli Serotype I 4plex is a real-time PCR kit for the direct, qualitative detection and differentiation of specfifc wzx gene DNA sequences of Escherichia coli O121, O26 and O103.

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100 reactions F5167
SureFast® Foodborne Pathogens 4plex

The SureFast® Foodborne Pathogens 4plex is a real-time PCR for for the direct, qualitative detection and differentiation of Escherichia coli virulence factors (stx1 [subtype a-d], stx2 [subtype a-g]), Listeria monocytogenes and Salmonella spp.. Each …

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100 reactions F5175
SureFast®STEC Screening PLUS

The SureFast® STEC Screening PLUS is a real-time PCR for the direct, qualitative detection of DNA sequences of the virulence factors stx1 (subtype a-d) and stx2 (subtype a-g) of Escherichia coli (STEC). Each reaction contains an internal …

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100 reactions F5105
SureFast® Escherichia coli PLUS

The test detects Escherichia coli DNA. Each reaction contains an internal amplification control (IAC).  

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100 reactions F5157
SureFast® EHEC/EPEC 4plex

SureFast® EHEC/EPEC 4plex is a real-time PCR for the direct, qualitative detection and differentiation of DNA sequences of the virulence factors stx1 (subtype a-d), stx2 (subtype a-g), eae and the E. coli and Shigella spp. virulence factor ipaH. The …

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100 reactions F5128
SureFast® Staphylococcus aureus PLUS

The SureFast® Staphylococcus aureus PLUS is a real-time PCR for the direct, qualitative detection of a specific Staphylococcus aureus DNA sequence. Each reaction contains an internal amplification control (IAC).

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100 reactions F5116
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