Biocatalysis: The Potential Next Step in the Evolution of Surfactant Manufacturing

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Introduction to Surfactants and Industry Shifts

Surfactants are at the heart of countless products, from detergents and personal care cleaning to industrial products used in agriculture, metalworking, paints and coatings and many other areas. Today, how they are made is undergoing a profound transformation. Rising environmental expectations and demand for cleaner chemistry are pushing the industry to rethink production routes that have been largely unchanged for decades. This article explores the evolution from conventional petrochemical and oleochemical synthesis to fermentation-based biosurfactants and to the relatively new and powerful use of biocatalysis. While there are pros and cons to the current production technologies and the newer alternatives, it will be shown that biocatalysis represents a promising technology with very high potential that is only just beginning to be commercialized in the surfactant value chain.

Put simply, biocatalysis is the use of biological agents, typically isolated enzymes or whole microbial cells, to accelerate and direct chemical transformations. It is distinguished from conventional inorganic catalysis by its ability to operate under mild temperature and pressure conditions while delivering high specificity regarding the regio and stereochemistry of the molecular reaction (1).

Surfactants are critical for the functioning of modern civilization. The surfactants supply chain involves a complex interplay of chemistry, sustainability and innovation. As we face environmental pressures and evolving standards and challenges with respect to feedstock sourcing, the surfactant industry is undergoing a revolution. The question is no longer just “What cleans best?” but “What cleans better, faster, cheaper, more sustainably and more reliably”. That’s a lot to deal with and the answer lies in innovation in supply chains, process technology and applications.

Let’s take a quick journey through the main production technologies used for surfactants – from traditional chemical synthesis to fermentation-based methods, and the latest innovations in biocatalysis.

Why Surfactants are Important

Before addressing production technologies, it is worth remembering why surfactants are so important. They are almost everywhere in today’s world: laundry detergents, dish soaps, surface cleaners, personal care products, industrial degreasers adhesives, coatings and mining, to name a few. Their sheer volume means that even small improvements in how they are produced and applied (and how they degrade after use) can ripple into major cost and environmental impact reductions.

Moreover, as regulations tighten and demand for naturally-derived alternatives grows, the industry increasingly needs chemicals, including surfactants, that combine high performance, low cost, environmental safety (e.g. low aquatic toxicity), and naturality across the entire lifeNONBREAKING_HYPHENcycle (raw materials, manufacturing, wastewater impact, biodegradability) (2) (3).

It is these multifaceted pressures that are pushing surfactant innovation forward.

Conventional Chemistry

For decades, conventional chemistry has been the backbone of surfactant production. Most commercial surfactants derive from either petrochemical or oleochemical (mostly palm kernel oil) sources via organic synthesis (e.g., ethoxylation, sulfonation) (3). The strengths of this approach are well known: scalability, reliability, low cost, and high productivity.

Yet conventional chemistry comes with drawbacks: reliance on nonNONBREAKING_HYPHENrenewable feedstocks, supply chain concentration, lower biodegradability, energyNONBREAKING_HYPHENintensive processes, potential environmental burdens from waste streams or byNONBREAKING_HYPHENproducts, and resource volatility. In a world increasingly concerned about carbon footprint and sustainability, these factors are becoming more difficult to ignore (3).

That’s why in recent years, much money and time has been invested in new methods to get to surfactants with the aim of adding additional commercial routes to the existing petrochemical and oleochemical options.

Fermentation

Fermentation, the process of using microbes to transform renewable feedstocks, emerged as a natural candidate. By feeding bacteria, yeast, or fungi with sugars, vegetable oils, or other biomass-derived substrates, it’s possible to yield surfactant molecules via metabolic pathways (biosurfactants).

What fermentation brings to the table:

Renewable feedstocks: Using biomass instead of petrochemicals aligns production with circular or bio-based economies (4).

Milder processing conditions: Microbial fermentation can be carried out under mild conditions without the need for high temperatures or pressures, requiring less energy usage compared to chemical surfactant production (5).

Biodegradability: biosurfactants are biodegradable compounds that naturally break down over time (5).

FORCED_LINE_BREAKBut, fermentation also brings its own challenges:

Foam Control & Reactor Volume: Rhamnolipid fermentation generates amounts of stable foam, which reduces the effective working volume of bioreactors (6).

Pathogenicity & Safety: The most efficient natural producer of Rhamnolipids (Pseudomonas aeruginosa) is an opportunistic pathogen. While companies like Evonik use safe recombinant strains (P. putida), further improvement is needed to match the high yields of wild-type strains without introducing safety risks or complex regulatory hurdles (7).

Product Inhibition: High concentrations of biosurfactants such as Sophorolipids can impact fermentation performance by altering cell physiology and product formation dynamics (8).

Downstream Processing Costs: Downstream processing has been identified as a major cost driver in biosurfactant manufacture, accounting for roughly 60-80% of total production costs due to the complexity of separating and purifying these molecules (9).

Oxygen Transfer Efficiency: Both fermentation types are aerobic and require significant oxygen. The viscous nature of the oil-rich broth (Sophorolipids) or the foam layer (Rhamnolipids) creates mass transfer resistance, requiring high energy input for aeration and agitation (10).

Fermentation-based surfactants, such as Sophorolipids and Rhamnolipids, are being developed by both startups, such as Holiferm or Amphistar, and established chemical companies, like Evonik. Commercial sales volumes in this space, however, are still low in the context of the overall market.

FORCED_LINE_BREAKBiocatalysis

Biocatalysis is the industrial application of natural or engineered enzymes to accelerate chemical transformations, characterized by a level of stereo-, regio-, and chemo selectivity that typically surpasses conventional inorganic synthesis.

This specificity translates into superior yields by minimizing the formation of unwanted byproducts and isomers, which in turn improves the cost structure of manufacturing. By producing a purer crude product, biocatalysis reduces the complexity and expense of downstream purification – often the most capital-intensive stage of chemical processing (11).

In summary, biocatalysis brings to surfactants:

Precision & Selectivity: Enzymes can target exact bonds or functional groups EN_DASH they are highly selective and can improve surfactant purity and reduce side reactions (12).

Mild reaction conditions: Enzymatic reactions often run at ambient temperature, neutral pH, and atmospheric pressure (12).

Flexibility and innovation potential: Because enzymes can be engineered and optimized, biocatalysis offers modularity – the ability to tailor surfactants with custom properties (13).

In many ways, biocatalysis represents a rethink of how surfactants are made.

Innovations in directed evolution and enzyme immobilization have further enhanced commercial viability by engineering proteins that remain stable in solvent-heavy environments and can be recycled multiple times, drastically lowering the catalyst cost-per-kilogram and ensuring high volumetric productivity even at mild, energy-efficient temperatures.

Of course, no technology is perfect. For biocatalysis to realize its promise at industrial scale, key challenges remain: enzyme stability, costs, robust process integration, and regulatory clarity (especially for novel bio-based molecules).

This production route is still relatively unexplored among manufacturers, but startups like NorFalk and others are helping to advance it.

Biocatalysis vs. Fermentation: By using enzymes to build the molecule rather than microbial fermentation, one can avoids the foaming issues and difficult purification steps that make traditional biosurfactants expensive (14).

Biocatalysis vs. Chemical APGs: Traditional Alkyl Polyglucosides (APGs) are made using acids and tropical oils (Palm/Coconut), while the enzymatic process operates at mild temperatures and allows one to use local, non-tropical crops (15).

In the broader field of consumer product ingredients, other companies deploying enzymatic esterification at commercial scale include:

Evonik, using immobilized lipases to manufacture cosmetic emollients (e.g., Myristyl Myristate, Isopropyl Palmitate) (16).

Oleon, making a range of enzymatically produced esters (e.g. isoamyl laurate) under the ACT (Advanced Catalysis Technology) brand (17).

Conclusion

Looking at these three broad routes – chemical synthesis, fermentation, and biocatalysis – one sees not a linear replacement, but a diversified, hybrid future. Each method has strengths and tradeNONBREAKING_HYPHENoffs; the key is choosing the right tool for the right job.

For large-volume, commodity-type surfactants, traditional synthesis, particularly from petrochemical feedstocks is likely to remain economical and efficient. For some natural or niche applications, fermentation could offer a preferable path. And for performanceNONBREAKING_HYPHENdriven, low cost, efficient and innovationNONBREAKING_HYPHENfocused formulations, biocatalysis has much potential to become a major leg of the surfactant supply chain.

In short: the future isn’t about picking a single winner, but about building a toolbox of technologies. A toolbox that gives formulators and manufacturers the flexibility to balance efficacy, cost, sustainability, and compliance depending on the endNONBREAKING_HYPHENuse.

Surfactants are powerful and how they are made is important. The shift from petrochemical and oleochemical-based synthesis, through fermentation, and towards biocatalysis reflects a broader cultural and technology shift.

References and notes

1. Mettler-Toledo International Inc. Biocatalysis and Enzyme Catalysis https://www.mt.com/us/en/home/applications/L1_AutoChem_Applications/fermentation/biocatalysis.html
2. Jessop P, Ahmadpour F, Buczynski M, et al. Opportunities for greener alternatives in chemical formulations. Green Chemistry. 2015, 17, 2664 https://pubs.rsc.org/en/content/articlepdf/2015/gc/c4gc02261k
3. Dini S, Bekhit A, Roohinejad S, Vale J, Agyei D, et al. The Physicochemical and Functional Properties of Biosurfactants: A Review. Molecules. 2024 Vol. 29 Pages 2544 https://www.researchgate.net/publication/380937649_The_Physicochemical_and_Functional_Properties_of_Biosurfactants_A_Review
4. Mohanty, S.S., Koul, Y., Varjani, S. et al. A critical review on various feedstocks as sustainable substrates for biosurfactants production: a way towards cleaner production. Microb Cell Fact 20, 120 (2021). https://link.springer.com/article/10.1186/s12934-021-01613-3
5. Garg, R., Garg, R., Anjum, A. et al. Comprehensive review of the synthesis and sustainable applications of biosurfactants. Discov Appl Sci 7, 1168 (2025). https://doi.org/10.1007/s42452-025-07603-z
6. Gong, Z., Yang, G., Che, C. et al. Foaming of rhamnolipids fermentation: impact factors and fermentation strategies. Microb Cell Fact 20, 77 (2021). https://doi.org/10.1186/s12934-021-01516-3
7. Tiso T, Ihling N, Kubicki S, Biselli A, Schonhoff A, Bator I, Thies S, et al. Integration of Genetic and Process Engineering for Optimized Rhamnolipid Production Using Pseudomonas putida. Front. Bioeng. Biotechnol.,Vol 8 (2020). https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2020.00976/full
8. Claus S, Van Bogaert INA. Sophorolipid production by yeasts: a critical review of the literature and suggestions for future research. Appl Microbiol Biotechnol. 2017 Nov;101(21):7811-7821. https://pubmed.ncbi.nlm.nih.gov/28929199/
9. Sharma, R.; Lamsal, B.P. Understanding Bio-Based Surfactants, Their Production Strategies, Techno-Economic Viability, and Future Prospects of Producing Them on Sugar-Rich Renewable Resources. Processes 2025, 13, 2811. https://www.mdpi.com/2227-9717/13/9/2811
10. Xu N, Liu S, Xu L, Zhou J, Xin F, Zhang W, Qian X, Li M, Dong W, Jiang M. Enhanced rhamnolipids production using a novel bioreactor system based on integrated foam-control and repeated fed-batch fermentation strategy. Biotechnol Biofuels. 2020 Apr 24;13:80. https://pubmed.ncbi.nlm.nih.gov/32346396/
11. Delgado M. Sustainable Feedstocks: The Future of Green Chemistry in Petrochemicals (2024). https://www.linkedin.com/pulse/sustainable-feedstocks-future-green-chemistry-malvin-delgado-mnh7e/
12. Agger J, Zeuner B. Bio-based surfactants: enzymatic functionalization and production from renewable resources. Current Opinion in Biotechnology. Volume 78 (2022). https://www.sciencedirect.com/science/article/pii/S0958166922001768
13. Farhan, M.; Hasani, I.W.; Khafaga, D.S.R.; Ragab, W.M.; Ahmed Kazi, R.N.; Aatif, M.; Muteeb, G.; Fahim, Y.A. Enzymes as Catalysts in Industrial Biocatalysis: Advances in Engineering, Applications, and Sustainable Integration. Catalysts 2025, 15, 891. https://www.mdpi.com/2073-4344/15/9/891
14. Vazquez G, Rodriguez-Duran L, Pichardo-Sanchez M, et al. Recent Advances in Biosurfactant Production in Solid-State Fermentation. Fermentation Vol.11 (2025). https://www.researchgate.net/publication/396632039_Recent_Advances_in_Biosurfactant_Production_in_Solid-State_Fermentation
15. Zhangab B, Yanga C, Liao S, et al. Progress on the synthesis and applications of the green non-ionic surfactant alkyl polyglycosides. RSC Advances. (2025). https://pubs.rsc.org/en/content/articlepdf/2025/ra/d5ra06961k
16. Evonik. Evonik opens new plant for sustainable emollients at its Steinau site in Germany (2024). https://www.evonik.com/en/news/press-releases/2024/09/evonik-opens-new-plant-for-sustainable-emollients-at-its-steinau.html
17. Oleon. ACT now for the future, with esters produced by enzymes. https://www.oleon.com/sustainability/we-take-action-for-the-climate/enzymatic-technology