The Canberra biotech startup is helping processors detect spoilage risks before milk reaches the shelf.
Updated
August 13, 2026 1:01 AM
CYBERTONGUE® Food Testing System, developed by PPB Technology. IMAGE: PPB Technology
Anyone who has opened a carton of milk before its expiry date only to find that it smells off or tastes bitter has experienced the problem firsthand. For dairy processors, the same issue can play out across thousands of litres. Milk may pass routine quality checks, make it through production and still spoil before reaching the end of its expected shelf life.
CYBERTONGUE®, a biosensing platform, is designed to give dairy processors an earlier warning.
Developed by Canberra-based biotech startup PPB Technology, the compact food testing system allows processors to analyse milk on-site and receive results within minutes. Its first commercial application detects protease, an enzyme linked to spoilage, shorter shelf life and production losses across dairy products.
Dairy companies already test milk for fat, protein, bacteria, antibiotics and other indicators. Samples from individual farms may be sent to central laboratories, while tanker loads are tested again when they reach processing plants. These checks provide useful information, but they do not always show whether milk will remain stable in a UHT carton, meet a supermarket’s shelf-life requirements or produce the expected amount of cheese.
Even after heat treatment, protease can continue affecting milk. For processors making UHT milk, fresh milk or mature cheese, that creates a costly blind spot.
“Right now, dairy processors are working blind on this,” PPB Technology founder Stephen Trowell told Ventureport. “It’s becoming more of a problem as customers expect longer shelf lives and higher quality.”
CYBERTONGUE® uses engineered biosensing proteins that emit blue and green light. The balance between the two colours changes when the protein reacts with a target substance. The reader measures that shift and calculates how much of the target is present.
Trowell describes himself as a protein engineer at heart. He spent around three decades at CSIRO, Australia's national science and technology agency, and close to four decades in research before becoming a startup founder. The technology behind CYBERTONGUE® grew out of years of biological research, including earlier experiments involving wine aromas and explosives detection.
PPB initially developed its technology to measure plasmin, an enzyme derived from cows. After feedback from the dairy industry, the company shifted its focus to bacterial proteases, which were identified as a more pressing spoilage problem. The platform can make some existing tests faster, but PPB chose to focus first on a measurement previously unavailable to processors.
“Where we’ve chosen to lead is with a measurement nobody else can do at all,” he said. “The blue ocean, if you like.”
That focused entry point shapes PPB’s wider strategy. CYBERTONGUE® could eventually test for lactose, allergens, microbial toxins and other targets. Yet launching everything at once would stretch a six-person company too far. Protease gives it a clear route into dairy, where the financial value is easier to demonstrate.
A processor that detects high protease activity may redirect a batch of milk away from long-life products and use it for yoghurt, curd or another product where the enzyme causes less damage. PPB also says its tests can help trace problems in the milk supply and detect biofilms on processing equipment, allowing factories to take corrective cleaning measures.
Fresh milk presents another sizeable opportunity, with the global market estimated at around US$81 billion in 2026 and projected to grow at 6.83% annually through 2035. At that scale, even small gains in shelf-life consistency could prevent substantial losses. Supermarkets often require milk to have a minimum amount of shelf life remaining on delivery. Products that fall short may be rejected, discounted or discarded at the processor’s expense. While Australian processors typically aim for a shelf life of 19 to 21 days, they do not always achieve it. CYBERTONGUE® could help them reach that target more consistently.
Cheese producers face a related issue. Protease can create bitter flavours in hard cheeses and reduce production yield. Cheesemakers add another enzyme, chymosin, during production, often without knowing how much protease activity is already present in the milk. Better information could help them adjust the process and get more value from the same raw material.
PPB sells the reader as laboratory equipment, but its long-term business model centres on repeat testing. Customers buy the machine, then purchase a PPB reagent cartridge each time they run an assay. Future tests are intended to work on the same reader, making the system more useful as the catalogue expands.
CYBERTONGUE®’s compact design reflects PPB’s focus on practical onsite testing. The device is small enough to fit into two cupped hands and comes with a tablet running PPB’s software.
At the time of the interview, 13 to 15 systems had been installed with paying customers. PPB had made sales in 11 countries across five continents, with Europe as its largest market.
Trowell describes PPB as “born global”. While Australia and New Zealand have sophisticated dairy industries, Trowell thinks CYBERTONGUE® may offer even more value in regions where milk quality is less consistent, transport routes are longer or refrigeration is harder to maintain.
Trowell also believes PPB has a strong competitive moat, with the combination of manufacturing both the hardware and consumable reagents. Patents form one layer, but he does not consider legal protection sufficient on its own. A competitor would need expertise in protein engineering, reagent production, optical hardware, software and dairy processing.
Calibration adds another barrier. For each new box of reagents, PPB securely uploads the required calibration data to the customer’s machine. A third party could not simply manufacture a cartridge with the same dimensions and expect it to work correctly.
“We own the whole stack,” Trowell said, referring to everything from the sensing molecule to the hardware, software and cloud platform.
That said, he accepts that no technology is impossible to copy. His view is that PPB’s mix of scientific knowledge, integrated system and experience in dairy gives it enough of a head start to build a meaningful position before competitors catch up.
The technology could eventually reach beyond food. Trowell sees possible uses in environmental testing, veterinary care and medical diagnostics, including the analysis of blood, serum or saliva. PPB has already discussed potential applications with organisations outside the food industry.
For now, however, moving directly into clinical diagnostics would create more risk than opportunity. Medical products can require years of trials, extensive regulatory work and large development budgets. PPB would also need to build new sales channels and choose between many possible clinical uses without knowing which one would attract the strongest demand.
For these reasons, food testing offers PPB a clearer path. The regulatory barriers are generally lower, customers have immediate operational problems, and PPB has already built relationships in dairy. Once the platform has proved itself commercially, the company could enter other sectors through partnerships or licensing.
Trowell has held that view for years. The immediate goal is to build a successful food testing company rather than chase the prestige often attached to medical biotechnology.
The opportunity may also expand as food production becomes more complex. Dairy factories increasingly process oat, soy and other alternatives on equipment that also handles cow’s milk. This creates cross-contamination and allergen risks, offering another potential use for CYBERTONGUE®.
PPB still has plenty to prove. It must secure repeat reagent orders, convert early trials into wider deployments and expand its test catalogue without compromising accuracy. Scaling an integrated biotech hardware business across international markets will not be simple.
Still, its approach offers a useful lesson for other deep-tech startups. Instead of beginning with every possible application, PPB picked a specific problem that costs customers money today. It built a product around that pain point, then used the same technology as the foundation for a broader platform.
As Trowell put it, customers “need it fast, and they need it right.” CYBERTONGUE® is betting that food testing can deliver both.
Keep Reading
Skip the slogans—real Women’s Day campaigns create impact that lasts
Updated
April 1, 2026 8:56 AM
Mother Armenia monument in Victory Park, Gyumri city, Armenia. PHOTO: ADOBE STOCK
Women’s Day offers brands an opportunity to show what they stand for through meaningful action. But the strongest International Women’s Day campaigns do more than say “thank you”. They speak to women’s everyday lives.
Instead of big, vague empowerment slogans, some brands focus on small moments that shape confidence and wellbeing. Think about how we compliment young girls, how safe public spaces feel, what comfort really looks like and how friendship plays help women grow. When a campaign is built on a real insight and backed by something practical, it lands harder and lasts longer.
If you’re a startup planning a Women’s Day initiative, there’s value in studying what actually works. The examples below show how clarity, credibility and usefulness can turn International Women’s Day into something that feels meaningful and on-brand.
To celebrate the International Day of the Girl on October 11, 2025, Dove launched #ChangeTheCompliment—a campaign that asked parents and caregivers to rethink how they praise girls. Instead of defaulting to looks-based comments, Dove encouraged adults to acknowledge qualities like resilience, intelligence and determination alongside beauty.
The idea was grounded in data from Dove’s 2024 Real State of Beauty report, which found that more than 60% of girls feel pressure to be beautiful. Dove brought the message to life through a digital film showing parents broadening their praise in everyday moments.
In Canada, the campaign expanded through a partnership with psychologist Dr. Vanessa Lapointe, who helped anchor #ChangeTheCompliment in expert insight. She linked the campaign’s core message to Dove’s long-running Self-Esteem Project, launched in 2004 to provide free, evidence-based tools developed with psychologists and body image experts. Some of these tools included “Confident Me”, a classroom workshop on body confidence and “Amazing Me”, age-appropriate lessons designed to support self-esteem at school.
What worked here is that it didn’t stay inside a brand video. Parents, teachers and creators joined in by sharing their own examples online, posting revised compliments, building quick classroom activities or filming short clips where they swapped appearance-based praise for character-based words. From social posts to simple at-home conversations, the idea travelled beyond the original film and made participation easy.
Startup takeaway: Don’t build a Women’s Day campaign around a fuzzy theme. Focus on specific, everyday behaviors your audience relates to and design your campaign to shift them. Specificity makes your message practical and memorable.
In March 2024, Tetley Green Tea Immune launched the “I Am More Than My Nickname” campaign in India to challenge a common social habit: labeling someone’s fitness based on how their body looks. In many communities, body-type nicknames are used casually. Some of them might sound harmless, but they can chip away at confidence and self-worth over time. Tetley’s point was simple: fitness isn’t a body size. It’s strength, health and well-being.
The campaign centered on a digital film featuring a young girl nicknamed “Golu”, a Hindi term often used to describe someone as chubby. Throughout the film, she’s judged before she even tries, with people deciding what she can and cannot do based on her appearance. As the story unfolds, she pushes back. The film closes with women of different body types holding placards displaying various nicknames, ending with a clear line: “My Body Can, Your Body Can, Every Body Can”. It’s a strong example of a brand taking a familiar social habit and giving people a new way to see it.
Startup takeaway: Look for one small, common behaviour your audience sees every day. Then give people a simple way to engage with it, whether that’s sharing a story, rethinking a phrase or calling out a habit. When participation is baked into the idea, the campaign spreads naturally.
For International Anti-Street Harassment Week 2025, L'Oréal Paris launched its “Never Your Fault” campaign as part of its Stand Up Against Street Harassment program. The campaign drew on L’Oréal Paris research with Ipsos showing the scale of the problem: 75% of women reported experiencing harassment, and 60% said they adjust their clothing or appearance in public.
The message was clear: harassment is never the victim’s fault, and public spaces should feel safer for women. That matters because a lot of women still end up internalizing blame and changing how they dress just to lower the risk.
The campaign also came with a clear next step. It builds on L’Oréal’s partnership with Right To Be, an international NGO focused on stopping harassment, which began in 2020. Through Right To Be’s 5D framework—Distract, Delegate, Document, Delay and Direct—the program teaches bystanders simple, practical ways to intervene safely in the moment.
Startup takeaway: If you’re addressing a sensitive issue in a Women’s Day campaign, don’t go about it alone. Work with experts who bring trust, depth and real tools. It makes your message stronger fast.
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In 2025, Van Heusen Innerwear marked Women’s Day with a single visual that many women immediately recognized. The poster showed a crumpled shirt with a bra placed over it, capturing that end-of-day moment of relief.
The slogan on the poster—“Happy Women’s Day has nothing to do with us”—makes the point that real comfort is personal, not performative. The message wasn’t really about taking off a bra, but about the pressure women carry all day, including the expectation to look a certain way, feel a certain way and still keep going. By leaning into a real, everyday experience, Van Heusen positioned itself as a brand that listens rather than lectures.
Startup takeaway: Skip the predictable in Women’s Day slogans. Find an honest, lived moment and build around it. When your campaign reflects real life, it feels relevant instead of seasonal.
In 2025, Mattel celebrated International Women’s Day by honoring real-life female friendship duos with one-of-a-kind Barbie Role Model dolls made in their likeness. The campaign focused on the idea that strong friendships help women grow, succeed and support each other. Instead of spotlighting individual achievement, it highlighted collective strength—women empowering women.
By featuring duos such as Alicia Keys and Ann Mincieli, Jordan Chiles and Jade Carey and other global pairs across sports, entertainment and advocacy, the campaign framed friendship as a source of confidence and ambition from girlhood onward. To make it practical, Mattel partnered with psychologist and best-selling author Dr. Marisa G. Franco, who shared simple advice for girls: take initiative in making friends, assume people will like you, express appreciation openly, try new activities together and prioritize quality over quantity in relationships.
Startup takeaway: If your Women’s Day campaign is built on a social insight, make it actionable. Storytelling helps, but tools, education and frameworks are what make it useful.
Across these International Women’s Day campaigns, the playbook is consistent: choose one real, everyday behaviour and shift it. Whether it’s the way we compliment girls, the labels we use, how bystanders intervene, what comfort feels like or how we nurture friendships, each brand anchored its message in something tangible and built action around it.
For startups, the lesson is straightforward: be precise in what you’re addressing, be credible in how you show up and make your message usable. Attention is easy to grab, but relevance is harder to earn and far more valuable.