Beta-Lactams+Cefalexin, BCex Combo Test
Need a quote, bulk pricing or technical support? Contact RingbioSA on 076 608 3730 or email info@ringbiosa.co.za. Product instructions and certificates, where available, can be downloaded in the Documents section above.
Documents
About Beta-lactams (penicillins, amoxicillin, ampicillin, cloxacillin)
- What they are: the most widely used antibiotic class in SA dairy and veterinary medicine, including mastitis treatment.
- Food safety: residues above the Codex / EU MRL of 4 µg/kg in milk (for Penicillin G) cause starter-culture failure in cheese and yoghurt production, and trigger penicillin-allergy risk in sensitive consumers.
- SA position: DALRRD limits align with Codex; all SA dairy processors screen incoming milk at reception.
- Typical samples: raw milk at farm tank, tanker reception, bulk silo.
- Who cares in SA: every commercial dairy processor; mastitis-treatment vet practices (withdrawal-period compliance).
Being the result of obtaining high milk yield, cow mastitis is quite common in the modern dairy industry, thus antibiotics like β-Lactams and cefalexin, etc., are frequently administered in veterinary clinical practice. However, these antibiotics residues in milk may cause potential damage to human health, which is now strictly controlled and supervised in many countries. Maximum Residue Level/Limit (MRL) has been established against these two classes of drugs in USA, EU, Japan, China and many other countries.
Key facts of the beta-lactams & cefalexin test kit
- Ready to use kits for farmers, truck drivers, etc
- No incubation required
- Result visible in less than 10min
- Receptor assay with broad-specificity to all β-lactamas, and high-specificity to cefalexin
- EU MRL / Russian MRL can be met in different specifications
Detection Limit of the beta-lactams & cefalexin test kit
| β-lactams | MRL(μg/L) | LOD(μg/L) | Cephalosporins | MRL(μg/L) | LOD(μg/L) |
| Penicillin G | 4 | 2-4 | Cefquinome | 20 | 15-20 |
| Ampicillin | 4 | 3-4 | Cefacetrile | 125 | 100 |
| Amoxicillin | 4 | 3-4 | Cefalonium | 20 | 18-20 |
| Oxacillin | 30 | 6-8 | Cefazolin | 50 | 50 |
| Cloxacillin | 30 | 6-8 | Cefoperazone | 50 | 40-50 |
| Dicloxacillin | 30 | 6-8 | Cephapirin | 60 | 50-60 |
| Nafcillin | 30 | 20-30 | Ceftiofur | 100 | 90-100 |
| Cefalexin | 15-20 μg/L | ||||
This product utilizes the high affinity of β-Lactams binding protein against the antibiotics, which can easily identify these potential hazardous substances in milk without any instrument. The detection limit of the kit can meet both European and USA MRLs.
beta-lactams & cefalexin test kit components
- beta-lactams & cefalexin test strip, 96pcs
- Microwell reagent, 96wells
- Plastic Pipette, 96pcs