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Elisabet Nuñez Gaitan
Every time we review the statistics for the volume of diluent in Dilucup®, the results continue to improve. Our latest evaluation in February covered the last controlled dilution cups (more than 15,000), and the results speak for themselves:
✔ 99.1% of Dilucups contained 9 mL ± 0.5%
✔ 99.9% had a volume of 9 ± 1%
According to ISO 6887-1:2017/Amd 1:2024 the volume of diluent cannot exceed a deviation of ± 2%.
🔬 With the Dilucup® System you dilute your samples with the certainty of obtaining reliable enumerations.
Last week, when I visited a customer at their lab, I met a man who refused to perform serial dilutions in any other way than with tubes.
He was used to them and although it took a lot of time and effort to prepare them, he had worked like that for 10 years and had no intention of changing.
It turns out that when I showed him the Dilucup® System he got impressed:
-“It's clear that I could save a lot of time with Dilucup®” - he said. And he continued – “But I don't understand the colour code, what is it for?”
I explained that the red Dilucups were the ones that had been diluted and plated in the previous sample. The orange ones are those ready to be plated from the actual sample and the green ones those to be used in the next sample.
-“But I only see 2 different colours and I will get confused. I am colour-blind, you know, and this does not work for me.”
-“No problem” - I said.
Then I changed the colours.
He chuckled.
-“Wow, this changes everything. Now I can see the 3 colours!” - he said.
Click on the different links to read in your language how the Dilucup® System can help you improve serial dilutions.
Bulgarian
Cерийни разреждания
Croatian
Serijska razrjeđenja
Czech
Sériová ředění
Dutch
Seriële verdunningen
Finnish
Sarjalaimennokset
German
Serielle verdünnungen
Verdünnungsreihen
Greek
σειριακές αραιώσεις
Hungarian
Sorozatos hígítások
Icelandic
Italian
Japanese
Korean
Luxembourgish
Serielle-verdunnungen
Macedonian
Cеријски разредувања
Norwegian
Seriefortynninger
Polish
Rozcieńczenia seryjne
Portuguese
Diluições em série
Romanian
Diluții în serie
Serbian
Cеријска разблажења
Slovak
Sériové riedenia
Slovenian
Ukrainian
How to enumerate microorganisms in food products?
Total count method:
- Prepare the sample:
- If it is solid: take a small quantity and homogenize it with a diluent so that you have a first dilution 1/10.
For instance: 10 g of minced meat + 90 mL of MRD (Maximum Recovery Diluent). - If your sample is already liquid, skip this step.
- Perform serial dilutions with the Dilucup® System to reduce the concentration of microorganisms to a countable range.
- Plate and incubate: place 1 mL of the diluted suspensions on agar plates or equivalent and incubate them. This step will allow microorganisms to become visible colonies.
- Count the colonies after incubation. Plates should have between 30 and 300 Colony-Forming Units (CFU) to ensure statistical validity.
- Calculate the number of microorganisms per millilitre or gram in the original sample by dividing the number of CFU by the dilution factor.
For example: 131 CFU / 10-2 = 1,31 x 104 CFU/g.
Enumerating microorganisms in food products is an essential analysis to ensure the quality of the product and its safety for consumption.
With the Dilucup® System you save a lot of time with serial dilutions and get accurate results.
From all of us at LabRobot, we wish you a Merry Christmas and a Happy New Year 2025. Or as we say in Swedish, "God Jul och Gott Nytt År!"
We wish that the coming year brings you new opportunities and successes. And if you haven't yet tried our fantastic ready-to-use dilution cups, we encourage you to give them a try!
Happy Holidays!
Have you ever observed the movements of a hand using a vortex mixer?
The constant vibrations that fingers, hand and wrist endure are really concerning, often resulting in repetitive strain injuries over time.
These injuries not only affect the well-being of the staff but can also lead to decreased productivity.
To address this issue, many laboratories are switching to the Dilucup® System.
This innovative solution features the Dilugent® Shaker which effectively absorbs all vibrations.
Users simply pipette from one cup to the next and wave their hand in front of the sensor to start the shaking.
Check it out in the video!
Feel free to contact us if you'd like to get a free demo.
Sparen Sie Zeit und Geld mit Ihren Verdünnungsreihen
Das Dilucup®-System hilft Ihnen, Ihren Prozess der Verdünnungsreihen zu standardisieren und die Effizienz zu steigern, wodurch einfache und präzise Mikroorganismenzählungen gewährleistet werden.
Serienverdünnungen
Verdünnungsreihe
Serielle Verdünnungen
Reihenverdünnungen
Order a Dilugent® Shaker Light or standard and get the higher version.
Limited offer until November 30, 2024.
Perfect opportunity to order the Pro version for the price of the standard one!
Dilugent® Shaker indicates which Dilucup® to dilute or plate.
With the Pro version, you can upgrade your experience by selecting your favourite colours.
Check out the video to see a simple trick for opening only few Dilucups—just cut the top plastic with a cutter.
Interested in getting a cutter for your Dilucups?
Contact us!
