Part of the TAAG technology pillar. If you need to review the basics, start with what PCR is in microbiology.
Table of contents
Three lines, three different questions
When a laboratory reviews TAAG's kit catalog it finds three names: Ampliora, Elevia and Specio. At first glance all three are "PCR kits" and several share target microorganisms, such as Salmonella or Listeria monocytogenes. The real difference is not in the name of the pathogen, but in the detection chemistry each line uses and, therefore, in the analytical question it answers best.
This article sorts out those differences based on the technical information published by TAAG in its catalog and on taag.bio. It is not intended to replace each kit's technical data sheet or its validation in your matrix: the idea is for you to understand what lies behind each line before looking at a particular kit.
Ampliora: multiplex real-time PCR for routine control
Ampliora is TAAG's real-time PCR line. Its primers and probes are designed with Mila, the company's artificial intelligence platform, and most kits are multiplex: they detect two or more targets in the same reaction, with the logic explained in our article on multiplex PCR.
What it covers
The Ampliora catalog is the broadest in variety of applications:
- Pathogens: single kits such as Ampliora 1.1 Salmonella spp. and combinations such as Ampliora 3.2 (Salmonella spp., L. monocytogenes and E. coli O157:H7) or Ampliora 3.9 (F39), which looks for STEC, E. coli O157:H7 and Salmonella spp. in leafy greens and ground beef and is AOAC-certified by license extension No. 032501.
- Water indicators: the WaterScan family (3.11, 3.12 and 6.1 WaterScan Plus) combines in one reaction indicators such as E. coli, Citrobacter, Klebsiella, Enterococcus and Enterobacter.
- Spoilage: panels for beer (yeasts such as Brettanomyces or S. cerevisiae var. diastaticus, and bacteria such as Pectinatus or Pediococcus), for fruit concentrates (Alicyclobacillus and guaiacol-producing genes) and for low-pH beverages.
What it implies for turnaround time
Ampliora works with the classic DNA-based PCR workflow: the sample goes through an enrichment step before extraction and amplification. The data sheet published on taag.bio for Ampliora 1.1 Salmonella spp. indicates a complete workflow of around 26.5 hours. It is the tool designed for routine control of pathogens, indicators and spoilage when the decision can wait until the next day.
Elevia: RNA-based RT-qPCR with AiGOR™ technology
Elevia is the line built on AiGOR™, TAAG's RT-qPCR technology that uses RNA as the target instead of DNA. As we explain in RNA vs. DNA, RNA degrades quickly when the cell dies and, in addition, certain RNA sequences are present in many copies per cell. TAAG bases the line's two arguments on those two properties: orienting detection toward active cells and gaining analytical sensitivity.
What it covers
- Elevia 1.1 Salmonella spp.: AOAC-certified by extension of license No. 072601, with an AOAC scope of 62% cocoa chocolate, cocoa liquor, skim milk powder, peanuts and stainless steel surfaces; TAAG also declares validated matrices in filled chocolates, hazelnut and cocoa cream, whole muscle and ground meat, animal feed pellets and pasteurized liquid eggs.
- Elevia 2.8 Salmonella spp. and Listeria spp.: matrices of stainless steel surfaces and processed meat products.
- Elevia 2.9 Salmonella spp. and Enterobacteria: validated on stainless steel surfaces; according to taag.bio, its protocol accepts swabs and sponges taken before or after sanitization, the scenario we analyze in Enterobacteriaceae and Salmonella on post-sanitation surfaces.
What it implies for turnaround time
According to taag.bio, AiGOR makes it possible to detect without enrichment or with a short enrichment, and TAAG publishes results from 3 hours in environmental samples. The technology page also indicates AOAC-PTM certification for selected kits and validation according to ISO 16140-4. The practical consequence is that Elevia targets a different decision: releasing product or verifying a cleaning within the same shift, not the next day. As with any method, that time only holds for the matrices in which the kit is validated.
Specio: real-time PCR with melting curve and KAi interpretation
Specio uses a different chemistry: real-time PCR followed by melting curve analysis. When amplification ends, the instrument gradually heats the product and records how fluorescence falls as the DNA double strand separates. Each amplification product "melts" at a characteristic temperature that depends on its sequence, its length and its guanine and cytosine content. The classic work of Ririe, Rasmussen and Wittwer (1997) showed that the shape and position of that curve make it possible to distinguish products whose melting temperatures are less than 2 °C apart.
That property is what opens the door to identifying many different microorganisms with a single assay. When the possible species number in the dozens, reading those curves by eye becomes unfeasible; this is where KAi comes in, the AI-assisted analysis system that TAAG describes for comparing the profile of the curve obtained against reference patterns, as we cover in artificial intelligence in food microbiology.
What it covers
- Broad-spectrum spoilage: Specio 00.1 Bacteria covers more than 80 spoilage bacteria and Specio 00.2 Yeast & Molds more than 50 yeasts and molds, with matrices ranging from cola beverages and orange juice to cream, ketchup, mustard and surfaces.
- Specific spoilage: Specio 1.7 for Zygosaccharomyces bailii and parabailii in beverages and pulps.
- Pathogens: from single kits (Salmonella, S. aureus, E. coli, L. monocytogenes, Listeria spp.) to Specio 4.1, which combines Salmonella spp., L. monocytogenes, E. coli and S. aureus and is AOAC-certified by license extension No. 072101, with matrices validated in stainless steel, pasteurized 2% fat liquid milk and lettuce.
The question Specio answers best is not just "is it there?", but "what is it?". In a spoilage program, knowing which yeast or which bacterium appeared guides the root cause investigation far better than a total count.
The layers they share: Mila and TxA
The three lines are not islands. Mila is involved in designing the primers and probes of Ampliora and Elevia; it is the stage that occurs before the kit exists. At the other end of the workflow, TxA automatically interprets the amplification or melting curves generated by the Ampliora, Elevia and Specio kits, and according to taag.bio it brings sample, result and report management together in a single platform. Understanding this division avoids a common confusion: Mila, AiGOR, KAi and TxA are not products that compete with each other, but different layers of the same process (design, chemistry, interpretation and data management).
How to read the choice between lines
Rather than "which is better", it is worth asking which decision depends on the result:
- If you need routine control of pathogens, water indicators or a known spoilage panel and the result can arrive the next day, the logic of Ampliora (real-time PCR with enrichment) is the closest to conventional workflows.
- If the decision is to release a lot or restart a line within the same shift and your matrix matches the validated ones, Elevia targets that scenario by reducing or eliminating enrichment.
- If you do not know which spoilage microorganism is causing the problem, or want to identify it among dozens of possibilities, Specio's melting curve is designed for that.
In all three cases the same rule applies: a kit's scope is defined by its validation. An AOAC certification or a validation under ISO 16140 covers specific matrices, as we explain in what AOAC-PTM certification is. If your product is not among the validated matrices, a verification in your laboratory is needed before using the result to make decisions. And a positive result in any line follows its own path until it becomes a confirmed result, something we develop in presumptive results and confirmation.
Conclusion
Ampliora, Elevia and Specio are not three versions of the same kit: each line uses a different chemistry (real-time PCR on DNA, RT-qPCR on RNA with AiGOR, and PCR with melting curve) and best answers a different question, whether routine control, same-shift decision or identification among many possible microorganisms. The right choice starts from the decision that depends on the result and from the matrices in which each kit is validated.
About TAAG
Review with TAAG which line and which kit match your matrix, your target microorganism and the time in which you need to make the decision.
Frequently asked questions
What is the main technical difference between Ampliora and Elevia?
Ampliora uses real-time PCR on DNA, normally with a prior enrichment step. Elevia uses RT-qPCR on RNA with AiGOR technology, which according to TAAG makes it possible to detect without enrichment or with a short one and to orient detection toward active cells.
What does Specio's melting curve provide?
It makes it possible to distinguish amplification products by their melting temperature, which depends on the sequence. That makes it possible to identify which microorganism generated the signal among many possibilities, such as the more than 80 spoilage bacteria of Specio 00.1 or the more than 50 yeasts and molds of Specio 00.2.
Are all TAAG kits AOAC-certified?
No. According to TAAG's catalog, those with AOAC certification are Elevia 1.1 Salmonella spp. (license extension No. 072601), Ampliora 3.9 (license extension No. 032501) and Specio 4.1 (license extension No. 072101). The rest must be evaluated according to their own validation documentation.
Are Mila, KAi and TxA kits?
No. Mila is the AI platform that designs primers and probes, KAi is the AI-assisted analysis of melting curves and TxA is the software that interprets results and manages laboratory data. They are layers that accompany the kits, not kits themselves.