Green Pyramid Biotech Turns Sophorolipid Research Into a Natural Food-Safety Platform

Pune-based Green Pyramid Biotech has developed a biosurfactant-based platform that applies microbial fermentation and green chemistry to food safety, post-harvest protection and residue removal. Its best-known product, Sophab, emerged from research on sophorolipids, a class of biologically produced glycolipid surfactants that can help loosen hydrophobic residues, reduce surface contamination and improve the cleaning of fruits and vegetables.

The scientific foundation of the technology goes back more than a decade to work conducted at CSIR–National Chemical Laboratory in Pune by microbiologist Dr. Asmita A. Prabhune and her research colleagues. Their studies examined how sophorolipids could be produced through fermentation and used as antimicrobial and surface-active agents. Green Pyramid Biotech was later established to translate this research into commercially usable biotechnology products and to create a bridge between laboratory science and practical applications in food safety and agriculture.

From Microbial Fermentation to a Functional Biosurfactant

Sophorolipids are produced by certain yeasts through fermentation using suitable carbon sources such as sugars, oils, fatty acids or related compounds. These molecules contain both water-attracting and oil-attracting regions, giving them the ability to reduce surface tension and interact with oily or hydrophobic substances that ordinary water may struggle to remove.

This property is particularly useful when cleaning agricultural produce. Many pesticides and post-harvest residues are designed to adhere strongly to plant surfaces so that they remain effective under field conditions. Fruits and vegetables also contain natural waxes, microscopic pores, folds and irregularities where residues and microorganisms can accumulate. A biosurfactant can improve the ability of water to spread across these surfaces and help disperse substances that otherwise remain attached.

Sophab was developed around this principle. Instead of relying entirely on conventional synthetic surfactants, the formulation uses biologically derived surface-active chemistry intended for food-contact applications. The technology aims to improve the removal of accessible surface contaminants while remaining compatible with produce that will subsequently be consumed.

Antimicrobial Properties Add a Second Layer of Protection

The research behind Sophab goes beyond physical cleaning. Earlier studies by the CSIR-NCL team also examined the antimicrobial properties of sophorolipid-based formulations against common microorganisms.

Laboratory testing demonstrated substantial reductions in bacteria such as Escherichia coli and Salmonella typhimurium under experimental conditions. The formulation also showed activity against plant-associated microorganisms including Erwinia chrysanthemi and Xanthomonas campestris, indicating that the biosurfactant could combine surface-cleaning properties with microbial reduction.

The antimicrobial action is linked to the ability of certain sophorolipid structures to interact with microbial cell membranes. Because biological membranes contain lipid components, amphiphilic molecules can in some circumstances disturb membrane integrity and reduce microbial viability. The precise effect depends on concentration, molecular structure, organism and environmental conditions, but the principle has been studied across a growing body of biosurfactant research.

This gives Sophab a broader functional profile than a conventional rinse. The technology is designed not only to help remove residues but also to reduce microbial contamination present on produce surfaces.

Addressing Surface Pesticide Residues

One of the most important claims associated with Sophab concerns pesticide removal. This aspect requires careful distinction between surface residues and systemic pesticides.

Contact pesticides and other external residues remain primarily on the surface of fruits and vegetables and can therefore be accessible to washing. Systemic pesticides, however, may be absorbed into plant tissues and cannot be removed simply by cleaning the outside of the produce.

Sophab is therefore most relevant to accessible surface contamination. Its biosurfactant molecules can interact with hydrophobic residues, help emulsify oily substances and improve their transfer from the produce surface into the wash water.

Green Pyramid Biotech has reported strong pesticide-removal performance under controlled testing, and the technology has been evaluated through accredited laboratory systems. Earlier innovation programmes also highlighted high removal efficiencies for tested contaminants. These results are best understood as performance under specific test conditions rather than as a universal guarantee that every pesticide on every crop will be removed to the same degree.

The actual effectiveness of washing can vary according to the pesticide involved, the crop surface, the concentration present, the time elapsed since application and whether the chemical remains on the exterior or has penetrated into the plant tissue.

Why Fruits and Vegetables Are Difficult to Clean

Fresh produce presents a surprisingly complex surface from a food-safety perspective. Fruits may have waxy skins and microscopic depressions, while leafy vegetables contain veins, folds and overlapping structures that trap soil, moisture and microorganisms.

During cultivation, harvesting, transport and retail handling, produce may come into contact with pesticides, dust, soil, microorganisms and post-harvest treatments. Some fruits may also receive food-grade wax coatings to reduce moisture loss and improve shelf life.

Simple rinsing can remove loose particles, but strongly adhering or oily residues are more difficult to dislodge. Biosurfactants improve wetting and surface contact, helping the wash solution reach areas that pure water may not cover effectively.

This ability to improve surface cleaning is central to Sophab’s design and reflects a broader shift toward biotechnology-based approaches in food hygiene.

Potential Role in Post-Harvest Preservation

The technology also has potential beyond household food washing. By reducing microbial populations and surface contamination after harvest, biosurfactant-based treatments could help delay spoilage under suitable conditions.

Post-harvest losses remain a major challenge in India’s fruit and vegetable supply chain. Produce can deteriorate rapidly during storage and transport, particularly where temperature control, packaging and hygiene are inadequate.

A treatment capable of reducing surface microbial load without relying on aggressive chemical disinfectants could therefore have value for farmers, packhouses, retailers, food processors and exporters. Green Pyramid Biotech has explored this broader post-harvest potential as part of its continuing biosurfactant research.

The actual shelf-life benefit will depend on the crop, maturity, storage conditions, temperature, humidity, packaging and microbial environment. The technology should therefore be viewed as one component of a wider post-harvest management system rather than a substitute for proper cold-chain and handling practices.

An Alternative to Conventional Surfactants

Most conventional surfactants are manufactured through petrochemical processes. Sophorolipids offer a different route because microorganisms can produce them through fermentation.

This distinction is important from both an industrial and environmental perspective. Fermentation-based production can potentially support biodegradable and biologically derived alternatives to conventional surfactants while reducing dependence on purely petrochemical chemistry.

The challenge is achieving industrial scale, consistent quality and competitive pricing. Biosurfactants must not only perform well in the laboratory but also be manufactured economically, purified efficiently and formulated in a way that remains stable during storage and use.

Green Pyramid Biotech’s work is significant because it represents an attempt to move this science beyond academic experimentation and into practical commercial formulations.

From Public Research to Startup Commercialisation

The development of Sophab also demonstrates an important model for India’s biotechnology ecosystem. The underlying science emerged from public-sector research at CSIR-NCL, while the commercial pathway developed through startup incubation and biotechnology entrepreneurship.

Green Pyramid Biotech was founded to convert this accumulated knowledge into products with applications in food safety, sanitation, agriculture and other sectors. The company was supported within Pune’s innovation ecosystem and later gained recognition through Indian biotechnology programmes that highlighted its biosurfactant-based technologies.

This progression from laboratory research to startup formation and commercial product development is central to India’s effort to build a stronger bioeconomy. Scientific institutions can generate valuable discoveries, but their larger impact depends on whether those discoveries can be converted into manufacturable technologies and viable products.

Sophab is an example of this research-to-market transition.

A Wider Biosurfactant Technology Platform

Sophab should not be viewed as an isolated product. Sophorolipids are being studied worldwide for applications in pharmaceuticals, cosmetics, detergents, agriculture, antimicrobial formulations, environmental remediation and advanced materials.

Green Pyramid Biotech has also explored the use of biosurfactant technology beyond fruit and vegetable washing, including food hygiene, post-harvest preservation and other biologically derived cleaning systems.

The underlying value lies in the versatility of the molecule. A biosurfactant that can reduce surface tension, interact with oily materials and influence microbial membranes may be adapted for multiple industrial uses depending on how it is formulated.

This creates the possibility of developing a broader Indian biotechnology platform rather than a single consumer product.

An Indian Biotechnology Story With Everyday Relevance

The Green Pyramid Biotech story is notable because it connects advanced microbiology with an ordinary daily activity. Washing fruits and vegetables may appear simple, but the science of removing strongly adhering residues and microbial contamination can be complex.

Sophab begins with a microorganism producing a biosurfactant through fermentation. That molecule is then converted into a formulation capable of interacting with oily residues, lowering surface tension and contributing to microbial reduction.

The same underlying technology could eventually support food processors, agricultural supply chains and export operations in addition to domestic use.

For India, this represents a useful example of how biotechnology can create value outside the more visible fields of vaccines, biologics and genetic engineering. Green Pyramid Biotech has taken specialised research on microbial surfactants and attempted to convert it into an indigenous platform for food safety and post-harvest management.

The significance of Sophab therefore lies not simply in creating another fruit and vegetable wash. It lies in demonstrating how Indian research, fermentation science, green chemistry and startup entrepreneurship can combine to produce a practical biotechnology platform with applications from the household kitchen to the agricultural supply chain.

---