Oxygen independent by design

1st generation enzymes depend on the availability of oxygen and suffer from reduced performance when oxygen levels vary (i.e during exercise) Sensors designed with the 3G-enzymes can achieve high performance in sites where O2 is variable or lacking. The figure compares the current output of a sensor (without any diffusion limiting membrane) in presence of […]

NordVal International Certificate was extended to LactoSens®R for NOLA™ Fit Lactose Biosensor Assay Kit

A recent study performed at Austrian Agency for Health and Food Safety (AGES) demonstrated that LactoSens®R for NOLA™ Fit Biosensor Assay Kit fulfils the requirements of the NordVal Validation Protocol 2. The validation study compared the lactose biosensor method against the golden standard method “High-performance-anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD)” and demonstrated that recovery was […]

Journal of AOAC International publication about LactoSens®R

After AOAC International food safety experts have adopted LactoSens®R for measuring low levels of lactose in dairy products as a First Action Official Method of AnalysisSM in January 2020 the full publication is now available. Determination of Lactose in Lactose-Free and Low-Lactose Milk, Milk Products, and Products Containing Dairy Ingredients by the LactoSens®R Amperometry Method: […]

Excellent results for LactoSens® in the proficiency testing of MUVA Kempten GmbH

In spring 2020 MUVA proficiency testing number EPQS 831 “Detection of residual lactose in lactose reduced and lactose free milk” was conducted with 42 labs reporting valid results. 2 UHT milk samples, one with a lactose concentration of approx. 0.2 g/100g and a lactose-free < 0.1 g/100g sample, have been analysed by enzymatic methods (via […]

Verify your lactose method with DRRR proficiency testing

DirectSens is participating with its LactoSens®R and LactoSens® 0.02% in the proficiency testing of DRRR GmbH. The chemical-physical proficiency testing number 2010107 UHT-milk (lactose free) on detection of residual lactose in lactose-reduced and lactose-free UHT milk starts on April 28th. Proficiency testing systems are an efficient instrument for internal and external quality assurance. Take the […]

Proficiency testing of MUVA Kempten GmbH

DirectSens is participating with its LactoSens®R and LactoSens® 0.02% in the proficiency testing of MUVA Kempten GmbH. The study number EPQS 831 detection of residual lactose in lactose reduced and lactose free milk starts on March 16th. Proficiency testing systems are an efficient instrument for internal and external quality assurance. Take the chance to demonstrate […]

LactoSens®R method was validated as Official Method by AOAC experts

AOAC INTERNATIONAL food safety experts have adopted LactoSens®R for measuring low levels of lactose in dairy products as a First Action Official Method of AnalysisSM during a meeting of the AOAC INTERNATIONAL Expert Review Panel for Low-Lactose Methods on January 15, 2020. Measuring trace levels of lactose accurately is technically challenging and can increase costs for […]

External certification by NordVal confirms that results obtained by LactoSens®R are equivalent to the reference method HPLC.

The recently accepted NordVal International validation assures that LactoSens®R lactose biosensor assay kit performs with high accuracy and specificity down to detection limit of 0.008% lactose. All characteristics are found to be in compliance with claims, demonstrating equal performance with the reference method HPLC (ISO 2262 IDF 198). External validation studies have been performed to […]