PSI® Technology: Building Better Biostimulants from the Ground Up
Agriculture today demands more than simple solutions. Growers need inputs that not only improve yield and quality but also provide reliability across seasons, adaptability to different crops, and alignment with environmental standards. Yet many biostimulants on the market are inconsistent; they may work in one field trial but fail to replicate the results in commercial conditions. This is often because there is no unified development process behind them.
At Brandon Bioscience, we believe that high-performing biostimulants cannot be left to chance. They must be built on a structured scientific framework, where every stage, from sourcing raw materials to confirming field results, is deliberate, measured, and validated. This is the principle behind PSI® Technology. It is not a single product, but a development platform built around five interconnected pillars designed to ensure consistent, proven performance in every formulation.
Why a Pillar-Based Approach Matters in Agriculture
Biostimulants operate at the intersection of biology, chemistry, and agronomy. If one aspect is neglected, for example, if the extraction process is inconsistent, or if the product’s composition varies from batch to batch, the end result becomes unpredictable. Farmers, however, cannot afford unpredictability. Every input they use must earn its place in the programme by delivering measurable value.
A pillar-based approach ensures that no critical stage is left to assumption. Each pillar serves as a safeguard, preventing weaknesses that could compromise results. This structure also creates a direct link between the product’s design and its performance in the field, so growers know exactly what they are applying, why it works, and what they can expect to see.
Pillar One: Novel Marine Bioactives
The journey starts with the raw materials. Ascophyllum nodosum, a brown seaweed harvested from cold, nutrient-rich waters, contains an array of bioactive compounds known to influence plant physiology. However, the true value lies not in simply using seaweed, but in identifying and prioritising the compounds with the greatest agronomic impact.
Brandon Bioscience invests heavily in the chemical and functional mapping of A. nodosum to discover unique molecular fractions, including specific carbohydrates that can stimulate beneficial responses in crops. This deep raw material knowledge is not static; it evolves through continuous research, enabling us to adapt product design as science advances. Starting with the right bioactives means that every subsequent stage builds on a strong, targeted foundation.
Pillar Two: Proprietary Extraction Processes
Once the target bioactives are identified, they must be extracted without losing their potency. This is where the second pillar, proprietary extraction processes, comes into play. Extraction is not simply a mechanical separation; it is a finely tuned process where parameters such as temperature, pH, time, and solvent composition determine the stability, size, and structure of the bioactive molecules.
Our proprietary hot extraction methods are optimised to unlock the maximum number of eliciting bioactives while preserving their integrity. By controlling the molecular mass distribution, we can tailor extracts to specific modes of action. This precision ensures that the final extract is not just active, but active in the way we intend.
Pillar Three: Chemical Characterisation
Even the most advanced extraction process means little without consistency. In agriculture, a product that works one year but performs differently the next quickly loses trust. That is why the third pillar, physicochemical analysis, is critical.
Every batch of PSI® Technology extract undergoes rigorous testing to confirm its molecular profile matches the established performance standard. This includes measuring solid content, composition, molecular weight distribution, and other key indicators. Such analysis ensures that growers receive the same formulation every time, eliminating variability that could lead to inconsistent results in the field. For the farmer, this means confidence that the product applied this season will behave just as it did in previous successful seasons.
Pillar Four: Biological & Functional Characterisation
Having the right compounds in the right composition is only half the equation; they must also produce the intended effect in plants. The fourth pillar, bioactivity analysis, bridges the gap between chemical composition and agronomic benefit.
We test our extracts in recognised plant models to observe their influence on physiological and molecular markers. For example, we may measure changes in relative water content, stomatal conductance, or nutrient uptake efficiency, and link these to gene expression data from stress-related pathways. If a product is designed to improve drought tolerance, we validate that it triggers the expression of aquaporin genes or enhances osmolyte accumulation. If it targets nutrient use efficiency, we confirm that it stimulates root growth or upregulates nutrient transporter genes. This validation ensures that each PSI® product has a clear, evidence-based mode of action.
Pillar Five: Field Performance
The final pillar, field performance, takes the laboratory findings into real-world conditions. Agriculture is complex, with variables such as soil type, climate, crop variety, and management practices all influencing results. That is why we conduct extensive multi-year, multi-location trials across diverse crops and regions.
These trials assess not only yield and quality, but also consistency under varying levels of stress. We look for measurable advantages, whether that means a higher °Brix in fruit, more uniform tuber size, improved marketable yield under drought, or reduced quality loss under salinity. By validating products under the same pressures growers face, we ensure they perform not just in theory, but in practice.
How the 5 Pillars Work Together
The strength of PSI® Technology lies in the integration of these pillars. Novel marine bioactives provide the starting potential; proprietary extraction preserves and enhances that potential; physicochemical analysis ensures every batch is identical; bioactivity analysis confirms the mode of action; and field performance proves it works in real farms. Each pillar reinforces the others, creating a closed loop of design, validation, and application.
This is why PSI® Technology products are not only effective but also predictable and repeatable. Growers can plan with confidence, knowing that the product they invest in has been engineered for reliability at every stage.
The Impact of PSI® Technology on Crop Productivity and Sustainability
By adhering to the five pillars, PSI® Technology delivers more than just yield gains. It supports sustainability by enabling crops to achieve more with fewer inputs, whether that means reducing nitrogen fertiliser by 20% without sacrificing yield, maintaining fruit set under heat stress, or sustaining water status during prolonged dry spells. The result is a portfolio of products that align with the principles of climate-resilient agriculture, giving growers a practical way to meet both production and environmental goals.
Learn More About PSI® Technology
If you want to explore how the five pillars of PSI® Technology can deliver consistent, high-performance results in your crops while supporting sustainable farming practices, contact us for more information.
