The untapped energy in materials that were once considered too wet or too chemically complex to process has been unlocked due to cutting-edge chemical and mechanical engineering breakthroughs.
Emerging Techniques in Waste-to-Fuel Engineering
Dr.Raj Shah, Daniel Yon, Mathew Stephen Roshan, Gavin Thomas | Koehler Instrument Company
The biofuels sector is shifting from crop-based production pathways toward waste-derived systems enabled by process integration and industrial symbiosis. This work reviews emerging biofuel platforms that convert high waste streams into fuels for niche sectors, with emphasis on sustainable aviation fuel. A dairy permeate ethanol pathway is evaluated in which approximately 14,000 metric tons of permeate solids are processed annually to produce ethanol with a reported carbon intensity of 5 to 12 gCO₂e per MJ, compared to approximately 50 gCO₂e per MJ for conventional corn ethanol. When upgraded via ethanol to jet conversion, the resulting C8 to C16 hydrocarbons are compatible with existing aviation fuel infrastructure. Additional waste-based pathways include macroalgae conversion systems, where hydrothermal liquefaction operates at approximately 350°C and 180 bar and experimental results show that roughly 99 percent of arsenic partitions to the solid char phase. Insect derived lipid platforms are also discussed, demonstrating lifecycle carbon footprint reductions of up to 80 percent through co location and waste heat integration. Collectively, these systems illustrate the feasibility of waste centric biofuel pathways that decouple fuel production from arable land use and support circular bioeconomy objectives.
Introduction
The global energy transition has historically been defined by the search for new resources, from whale oil to petroleum, to more recently, first-generation energy crops. However, there is a fundamental shift as the 2026 horizon takes shape. As the global economy strives to reach carbon zero, the biofuel industry is averting from the reliance on arable land and intended crops due to the increasing level of the question of the “food vs. fuel” debate and the harsh realities of climate change. Unlike previous biofuel cycles driven by agricultural mandates, the current wave of innovation is driven by the convergence of waste management crises and advanced catalytic science, offering pathways to decarbonize "hard-to-abate" sectors such as aviation and heavy marine transport. The new frontier lies not in the expanses of cornfields or palm plantations but in overlooked, high-entropy waste streams.
The untapped energy in materials that were once considered too wet or too chemically complex to process has been unlocked due to cutting-edge chemical and mechanical engineering breakthroughs. Engineers are establishing new catalytic processes and industrial symbiosis models to transform environmental liabilities into high-performance, efficient fuels. These innovations are revolutionizing the bioeconomy and demonstrate that the most sustainable sources of fuel are the ones that have been discarded. They are defined not merely by their novel feedstocks, ranging from dairy processing residues and toxic marine biomass to municipal sludge and insect biorefining, but by the advanced chemical and mechanical engineering processes that have rendered these materials sustainable and viable.
Low Carbon Bioethanol Using Dairy Permeate
Dairy permeate is one of the unusual feedstocks that have shown up in the North American SAF (Sustainable Aviation Fuel) market. Dairy permeate is the liquid stream remaining after the ultra-filtration of skim milk, a standard unit operation in the production of high-value dairy proteins such as whey protein isolate (WPI), milk protein concentrate (MPC), and Greek yogurt. As consumer demand for protein-enriched dairy products has surged, the volume of permeate generated has increased proportionately [1]. Chemically, permeate is a dilute solution comprised primarily of:
- Water: >85%
- Lactose (Milk Sugar): ~4-5%
- Minerals/Ash: ~0.5-1%
- Residual Protein/Fat: Negligible traces [2].
While a fraction is dried for use in animal feed or food fillers, the energy intensity of spray drying often makes disposal a net cost for dairy processors. A depiction of the ultra-filtration process for milk is shown in Figure 1 [3]. Land spreading, a common disposal method, poses risks of nutrient runoff and soil salinity, further complicating negative externalities. .jpg)
Figure 1: Process for recovery of a dried protein concentrate using ultra-filtration (UF). 1. UF unit, 2. Buffer tank for UF permeate, 3. Buffer tank for whey retentate, 4. Evaporator, 5. Spray dryer, 6. Bagging [3].
From a bioenergy perspective, permeate offers a distinct logistical advantage over cellulosic feedstocks (e.g., corn stover, switchgrass) because it is already aggregated at the processing facility. The "Dairy Distillery Alliance," a partnership between Canadian startup DD Biofuel and the Michigan Milk Producers Association (MMPA), has capitalized on this by siting their $41 million ethanol facility directly adjacent to a major dairy processing plant in Constantine, Michigan. Located in Constantine, Michigan, this system utilizes a unique "under-the-road" pipeline architecture, moving 14,000 to 16,000 metric tons of milk permeate solids on an annual basis out of the dairy plant into the fermentation tanks, eliminating the carbon emissions produced via feedstock transport. A recent update from MMPA announced that the first ethanol tanker would be produced Q1 of 2026, predicting the production volume of 2.2 to 2.3 million gallons of ethanol per year [3].
The conversion of lactose to ethanol requires specific microbiological and process engineering adaptations distinct from the standard corn-to-ethanol flowsheet. Traditional ethanol fermentation utilizes Saccharomyces cerevisiae to metabolize glucose derived from starch hydrolysis. However, wild-type S. cerevisiae cannot metabolize lactose. The dairy permeate process employs a specialized yeast strain Kluyveromyces marxianus that possess the 𝛽-galactosidase enzyme necessary to hydrolyze lactose into glucose and galactose monomers for fermentation [4]. However, ethanol distillation is energy intensive. To address this, the plant incorporates an anaerobic digestion (AD) unit to treat the stillage, the residual of the distillation. The AD unit produces biogas, which burns to run the boiler on the stills to produce a closed thermal cycle. The recovered water is treated to the standards of river quality and released, decoupling the production of fuels and the use of fresh water [1].
This logistical integration is a key factor in the project's ability to achieve extremely low Carbon Intensity (CI) scores. The outcome is an ethanol of a Carbon Intensity (CI) of 5-12 gCO 2e/MJ, significantly lower than the 50 CI of corn ethanol [3]. This low-CI ethanol is chemically the same as conventional ethanol except with better environmental impact. DD Biofuel plans to take advantage of this ideal set of feedstock by entering the Ethanol-to-Jet (ETJ) conversion systems such as those run by LanzaJet.
Ethanol-to-Jet Conversion Systems
LanzaJet has operationalized the world's first commercial-scale ethanol-to-jet facility, "Freedom Pines Fuels," in Soperton, Georgia, with full production achieved in 2025 [5]. This facility is optimal for low-CI ethanol streams. First, ethanol is passed over a solid acid catalyst (typically alumina or zeolite) at elevated temperatures (~300-400°C) forming ethylene, which is compressed and fed into a reactor where it forms oligomers. By controlling temperature and pressure, the chain length is targeted toward the jet fuel range (C8 to C16), as seen in Figure 2 [6]. The unsaturated oligomers are then reacted with hydrogen gas to saturate the double bonds, creating stable paraffins. The product stream is distilled to separate Sustainable Aviation Fuel (SAF) from renewable diesel and light ends (naphtha) [7].
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Figure 2: Composition of SAFs against their carbon number in an attempt to create a suitable jet fuel alternative between C8 and C16 [8].
LanzaJet’s technology converts ethanol with high efficiency, but the lifecycle GHG reduction is heavily dependent on the input CI. Dairy permeate ethanol, with its CI of ~5-12 gCO₂e per MJ, allows the final SAF to qualify for maximum incentives under the U.S. Inflation Reduction Act (Section 45Z) [9]. For reference, the baseline for fossil jet fuel is approximately 89 gCO2e/MJ [10]. DD Biofuel estimates that the low cost of the feedstock (permeate is often negative-cost due to disposal fees) combined with these incentives allows permeate-SAF to achieve price parity with fossil jet fuel. If Blue Biofuels sells its aviation fuel in California, it qualifies for the Low Carbon Fuel Standard Credit (LCFS) designed to reward the reduction of carbon emissions. Based on current rates, this credit adds approximately $0.49 per gallon to the company's revenue. When combined with other government incentives, the total value of these credits reaches $7.07 per gallon. This amount is earned in addition to the standard market price of the fuel, which is roughly $2.30 per gallon [9]. The success of the Constantine, Michigan facility is expected to trigger a wave of replication across the "dairy belt" of North America (Wisconsin, New York, Idaho) and in major dairy-exporting nations like New Zealand and Ireland. By valorizing lactose, the dairy industry transforms a potential methane liability into a strategic node in the decentralized production of aviation energy.
Marine Derived Bio-Compressed Natural Gas
Since 2011, the "Great Atlantic Sargassum Belt" has inundated Caribbean coastlines with millions of tons of rotting macroalgae, releasing toxic hydrogen sulfide and ammonia, strangling local tourism. In 2025, 39 million tons of sargassum clogged the Caribbean, causing respiratory illness in local populations and corrosion of electrical equipment [11]. However, in 2024, engineers in Barbados and Mexico pivoted from viewing this phenomenon as a disaster and more of a sustainable biomass resource.
In Barbados, the deep-tech startup Rum and Sargassum Inc. has commercialized a bio-compressed natural gas (Bio-CNG) solution that leverages the island's specific industrial waste profile [12]. The core engineering challenge with Sargassum is its high salinity and skewed Carbon-to-Nitrogen (C:N) ratio, which can inhibit methanogenesis in standard digesters. Anaerobic digestion (AD) requires a specific Carbon-to-Nitrogen (C:N) ratio (optimally 20-30:1) [13]. Furthermore, it contains high levels of arsenic (accumulated from the open ocean), heavy metals, and polyphenols, which are inhibitory to microbial fermentation [14]. The high salt content poses a lethal osmotic shock to methanogenic bacteria in traditional anaerobic digesters.
The solution, developed at the University of the West Indies Cave Hill Campus [15], involves a precise co-digestion recipe: mixing the carbon-rich, saline seaweed with nitrogen-dense Barbados Blackbelly sheep manure and acidic wastewater from local rum distilleries. This ternary mixture buffers the pH and dilutes salinity, creating optimal conditions for anaerobic bacteria [16, 17]. In late 2024, the project launched a pilot fleet of vehicles running on this "seaweed gas," demonstrating a decentralized model where small island nations can achieve energy security using local waste.
Steam Flash Recovery Systems
Beyond biogas, significant research activity in Mexico and St. Vincent is focused on converting Sargassum into drop-in liquid fuels [12, 18]. While anaerobic digestion is a mature technology for wet wastes, it produces methane. The recent critical engineering breakthrough is the development of Hydrothermal Liquefaction (HTL) as a viable option to produce liquid hydrocarbon fuels (diesel/jet) directly from wet sewage sludge and algal blooms without the prohibitive energy cost of drying. Unlike pyrolysis, which requires energy-intensive drying, HTL processes wet biomass at high pressure (180 bar) and temperature (350°C). Studies on continuous HTL systems have confirmed that over 99% of these heavy metals partition into the solid char phase during the reaction, leaving the resulting biocrude oil relatively clean and safe for upgrading to diesel or jet fuel [19]. This "self-cleaning” property of the HTL reaction is essential for utilizing toxic marine biomass, as confirmed with relatively low trace metal concentrations in the aqueous phase of HTL products down to less than 1 ppm as seen in Figure 3 [20].
Figure 3: Trace metal composition (ppm) of the HTL products [20].
However, although HTL has long been the standard for wet waste conversion, it has struggled with equipment reliability and economic viability. In 2024, engineers at the Pacific Northwest National Laboratory (PNNL) addressed these hurdles with significant design modifications.
A major problem HTL reactors have is how frequently heat exchangers fail. Viscous sludge that is heated to 350 °C results in rapid fouling of heat transfer surfaces and system shutdowns. PNNL’s 2024 design utilizes a steam flashing heat recovery system instead of traditional heat exchangers. Instead of transferring heat through a metal surface, which fouls, the hot product stream is flashed to release steam, which is then directly injected to heat the incoming feed. The system improves reliability by heating the feedstock slurry to an intermediate temperature of approximately 170 °C via direct steam injection rather than through a metal wall, which prevents the fouling characteristic of the previous designs. It is important to note that the implementation of the steam flashing system resulted in a 63% increase in the HTL conversion cost contribution, rising from $1.04/GGE (Gallon Gasoline Equivalent) to $1.69/GGE [20].
The economic viability of steam flashing HTL systems rely heavily on the non-oil phases. To even further “close the loop,” PNNL shifted the perspective of the solid residue from the leftover char produced via HTL. Previously considered a disposal cost, recent chemical analysis has revealed that this ash possesses pozzolanic properties, meaning that it can react with calcium hydroxide to form cementitious compounds. The solids are rich in silica, calcium, and phosphorus. Research by Sadoon et al. [21] indicates that when ground, this material has pozzolanic properties, reacting with calcium hydroxide to form cement.
PNNL's techno-economic assessments now model the use of solid residue as a Supplementary Cementitious Material (SCM) to replace portland cement in concrete production. Since cement manufacturing is a substantial CO2 emitter, offsetting it with HTL ash grants the biofuel production process substantial carbon credits. Assuming the valuation of the HTL derived SCM being $100/ton, this "waste-to-concrete" co-product credit lowers the Minimum Fuel Selling Price (MFSP) of the resulting biocrude to approximately $6.26, making sludge-derived fuel economically competitive while sequestering carbon in the built environment [22].
Larvae Feedstocks for Biofuel Production
The use of insects, especially Black Soldier Fly Larvae (BSFL, Hermetia illucens), has been proven to be a viable source for animal feed. However, the lipid fraction, often 30-40% of the dry mass, has been underutilized [23]. In 2024-2025, a paradigm shift occurred, recognizing insect lipids not as a byproduct, but as a premium, chemically distinct feedstock for the biofuels sector.
The lipid profile of BSFL is characteristically high in lauric acid (C12), typically ranging from 21% to 50% depending on the insect diet. This carbon chain length offers several key advantages over that of common vegetable oils (C16 and C18). For instance, the lack of double bonds in the fatty acid chains renders the fuel highly resistant to oxidation. This is a critical parameter for SAF, which requires long-term storage stability without gum formation [24]. Lauric acid is also more efficient to hydro process into SAFs since it does not have to be subjected to the harsh hydrocracking process compared to the longer chains in soy or canola oil [25].
More importantly, IJdema et al. [26] have quantified the link between waste input and lipid output. Larvae reared on carbohydrate-rich food waste accumulate significantly more lipid (up to 30.5% crude lipid) compared to those on protein-heavy abattoir waste. This creates an economic incentive to divert municipal organic waste (food scraps) specifically to fuel-grade insect production, while reserving cleaner agricultural residues for feed-grade protein production. The ability to use "dirty" waste streams for fuel production circumvents the regulatory hurdles associated with using waste-fed insects in the food chain [27].
The main challenge is efficiently extracting these lipids from the larvae. Yet advanced methods like supercritical CO₂ extraction and aqueous enzymatic extraction are replacing traditional pressing, achieving higher yields and better-quality oil with fewer environmental impacts. Kim et al. [28] demonstrated that a 6-hour extraction cycle could reduce the residual fat content in larval powder to below 4.6%. To achieve this, they operated at pressures around 350 bar and 40-60°C, in which CO2 enters a supercritical state where it exhibits the diffusivity of a gas and the solvating power of a liquid. Once extracted, the lipids can be converted to biodiesel by hydrodeoxygenating.
The economic viability of insect fuel relies on "Industrial Symbiosis." Innovafeed's model in Nesle, France, and Decatur, Illinois, involves physically co-locating insect farms with existing corn processing plants and power stations, a similar method shown by DD Biofuel and MMPA. Agricultural byproducts are piped directly to the insect facility, avoiding transport emissions, and waste heat from the power plant warms the larvae, maintaining the circular nature of the system. This integration reduces the facility's carbon footprint by 80% compared to standalone models.
Company Innovafeed is re-engineering the insect not just as a protein crop, but as a lipid refinery. The economy of insect fuel portrays the concept of "Industrial Symbiosis." Innovafeed's model in Nesle, France, and Decatur, Illinois, involves physically co-locating insect farms with existing corn processing plants and power stations, akin to the DD Biofuel system [29]. With minimal transportation-caused emissions, the agricultural waste is fed into the insect plant, and the waste heat of the power plant is used to heat the larvae. This integration minimizes the facility's carbon footprint by 80% of the standalone models [30]. This positions them as a key supplier for future SAF refining.
Conclusion
The future of biofuels engineering in 2026 is quite evident as we transition from large-scale farming to waste management engineering. The biofuel engineering landscape of the past years has been defined by feedstock agnosticism and process intensification, evidenced by HTL systems yielding ~39% biocrude from sewage sludge with energy densities of 33 MJ/kg. These innovations use non-competitive feedstocks to minimize energy penalties; for instance, insect-lipid refineries now achieve 80% carbon footprint reductions through industrial symbiosis and waste heat recovery. Furthermore, technologies converting dairy permeate to ethanol have unlocked CI as low as 5 gCO₂e/MJ, far superior to first-generation corn ethanol. As these technologies are further developed, they represent the beginning of a circular bioeconomy in which the energy of our jets and ships is not extracted from the ground but recovered from the waste products of other sectors.
About the Authors
Dr. Raj Shah, is a Director at Koehler Instrument Company in New York, where he has worked for the last 25 plus years. He is an elected Fellow by his peers at ASTM, IChemE, ASTM,AOCS, CMI, STLE, AIC, NLGI, INSTMC, Institute of Physics, The Energy Institute and The Royal Society of Chemistry. An ASTM Eagle award recipient, Dr. Shah recently coedited the bestseller, “Fuels and Lubricants handbook”, details of which are available at ASTM’s Long-awaited Fuels and Lubricants Handbook https://bit.ly/3u2e6GY. He earned his doctorate in Chemical Engineering from The Pennsylvania State University and is a Fellow from The Chartered Management Institute, London. Dr. Shah is also a Chartered Scientist with the Science Council, a Chartered Petroleum Engineer with the Energy Institute and a Chartered Engineer with the Engineering council, UK. Dr. Shah was recently granted the honorific of “Eminent engineer” with Tau beta Pi, the largest engineering society in the USA. He is on the Advisory board of directors at Farmingdale university (Mechanical Technology), Auburn Univ (Tribology), SUNY, Farmingdale, (Engineering Management) and State university of NY, Stony Brook (Chemical engineering/ Material Science and engineering). An Adjunct Professor at the State University of New York, Stony Brook, in the Department of Material Science and Chemical Engineering, Raj also has over 700 publications and has been active in the energy industry for over 3 decades.
Mr. Daniel Yon is a Chemical and Biomolecular Engineering undergraduate at Johns Hopkins Whiting School of Engineering focused on optimizing sustainable industrial systems and next-generation energy processes. He is passionate about designing and optimizing the systems that form the backbone of modern industry and is interested in analyzing the entirety of a process to enhance efficiency and sustainability. He is also an intern at Koehler Instrument Company under Dr. Raj Shah in Holtsville, NY.
Mr. Mathew Stephen Roshan is a Chemical and Molecular Engineering Undergraduate Student at Stony Brook University where Dr.’s Shah and Mittal are on the external advisory board of directors and where he is a research assistant at the Advanced Energy Research and Technology Center performing research on carbon capture and hydrogen storage. He also works as an intern under Dr. Raj Shah studying tribology, alternative energy, and fuels at Koehler Instrument Company and is a member of the SBU chapter of the American Institute of Chemical Engineers (AIChE).
Mr. Gavin Thomas is part of a thriving internship program at Koehler Instrument Company in Holtsville, NY and is a recent graduate of the Chemical and Molecular Engineering program at Stony Brook University. He also works as a process engineer at Mill-Max in Oyster Bay, NY where he becomes hands-on with various production processes to ultimately improve safety, efficiency, and cost-effectiveness.
Bibliography
[1] K. Schroeder, “Low-CI Ethanol Made from Milk | Ethanol Producer Magazine,” Ethanolproducer.com, 2024. https://ethanolproducer.com/articles/low-ci-ethanol-made-from-milk (accessed Jan. 21, 2026).
[2] “MILK AND WHEY FRACTIONATION | Dairy Processing Handbook,” Tetrapak.com, 2016. https://dairyprocessinghandbook.tetrapak.com/chapter/milk-and-whey-fractionation
[3] O. McDonald, “DD Biofuel – Opportunity,” Daily Distillery, Nov. 19, 2024. https://ddbiofuel.com/opportunity/ (accessed Jan. 21, 2026).
[4] T. L. de Albuquerque et al., “β-Galactosidase from Kluyveromyces lactis: Characterization, production, immobilization and applications - A review,” International Journal of Biological Macromolecules, vol. 191, no. 191, pp. 881–898, Nov. 2021, doi: https://doi.org/10.1016/j.ijbiomac.2021.09.133.
[5] “LanzaJet Makes History as the World’s First to Produce Jet Fuel from…,” LanzaJet, Nov. 13, 2025. https://www.lanzajet.com/news-insights/lanzajet-makes-history
[6] Z. Li, A. Lepore, B. H. Davison, and C. K. Narula, “Catalytic Conversion of Biomass-Derived Ethanol to Liquid Hydrocarbon Blendstock: Effect of Light Gas Recirculation,” Energy & Fuels, vol. 30, no. 12, pp. 10611–10617, Dec. 2016, doi: https://doi.org/10.1021/acs.energyfuels.6b02562.
[7] C. K. Narula et al., “Heterobimetallic Zeolite, InV-ZSM-5, Enables Efficient Conversion of Biomass Derived Ethanol to Renewable Hydrocarbons,” Scientific Reports, vol. 5, no. 1, Nov. 2015, doi: https://doi.org/10.1038/srep16039.
[8] “Ethanol to SAF – Vertimass,” Vertimass.com, 2024. https://www.vertimass.com/ethanol-to-saf/
[9] Blue Biofuels, Inc, “Blue Biofuels Reveals the Highly Positive Impact of the Inflation Reduction Act on Its Business Outlook - Blue Biofuels,” Blue Biofuels, Jul. 25, 2023. https://bluebiofuels.com/blue-biofuels-reveals-the-highly-positive-impact-of-the-inflation-reduction-act-on-its-business-outlook/ (accessed Jan. 21, 2026).
[10] “Current Methods for Life Cycle Analyses of Low-Carbon Transportation Fuels in the United States,” Oct. 2022, doi: https://doi.org/10.17226/26402.
[11] M. Garcia, “Mexico eyes SAF breakthrough with sargassum algae feedstock,” AGN, Sep. 09, 2025. https://aerospaceglobalnews.com/news/mexico-sargassum-saf-aviation/ (accessed Jan. 22, 2026).
[12] Communications OECS, “Saint Vincent and the Grenadines launches a pilot project on sargassum to turn a challenge into an opportunity,” The Organisation of Eastern Caribbean States, Sep. 24, 2025. https://pressroom.oecs.int/saint-vincent-and-the-grenadines-launches-a-pilot-project-on-sargassum-to-turn-a-challenge-into-an-opportunity (accessed Jan. 22, 2026).
[13] Chaudhery Mustansar Hussain, Ram Naresh Bharagava, L. Goswami, and Anamika Kushwaha, Bio-Based Materials and Waste for Energy Generation and Resource Management. Elsevier, 2023.
[14] M. Nurse, “Barbados launches First Bio-CNG Vehicle Powered by Sargassum,” Caricom.org, Sep. 30, 2024. https://caricom.org/barbados-launches-first-bio-cng-vehicle-powered-by-sargassum/
[15] Beckles, Hilary. “A Green Revolution on Wheels: The World’s First Sargassum-Powered Vehicle.” A Green Revolution on Wheels: The World’s First Sargassum-Powered Vehicle, The University of the West Indies Cave Hill Campus, 17 Sept. 2024, uwi.edu/vcreport/ft-21.php.
[16] H. Legena et al., “Experimental Evidence on the Use of Biomethane from Rum Distillery Waste and Sargassum Seaweed as an Alternative Fuel for Transportation in Barbados,” May 2021, doi: https://doi.org/10.18235/0003288.
[17] M. I. López-Torres, J. A. Sosa-Olivier, J. R. Laines-Canepa, A. Padilla-Rivera, I. Santiago-Cortez, and F. J. Jiménez-Hernández, “Aerobic biotransformation of Sargassum fluitans in combination with sheep manure: optimization of control variables,” Chemistry and Ecology, vol. 39, no. 8, pp. 823–842, Sep. 2023, doi: https://doi.org/10.1080/02757540.2023.2263427.
[18] E. Galeana, “Mexico Explores Turning Caribbean Sargassum Into Jet Biofuel,” Mexico Business, Sep. 03, 2025. https://mexicobusiness.news/sustainability/news/mexico-explores-turning-caribbean-sargassum-jet-biofuel (accessed Jan. 22, 2026).
[19] H. Liu, “Optimizing hydrothermal liquefaction of municipal mixed sludge for biocrude production and valorizing hydrochar,” Open Collections, Jan. 2023, doi: https://doi.org/10.14288/1.0437517.
[20] J. Watkins, A. Kumar, and P. Valdez, “Choose an item. Whole Algae Hydrothermal Liquefaction and Upgrading A review of progress and challenges and insight into the future,” Jan. 2025. Accessed: Jan. 22, 2026. [Online]. Available: https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-37209.pdf
[21] A. Sadoon, M. T. Bassuoni, and A. Ghazy, “Valorization of Agricultural Ashes from Cold and Temperate Regions as Alternative Supplementary Cementitious Materials: A Review,” Clean Technologies, vol. 7, no. 3, pp. 59–59, Jul. 2025, doi: https://doi.org/10.3390/cleantechnol7030059.
[22] Y. Xu et al., “2023 Business Case Study: Hydrothermal Liquefaction of Algal Bloom Biomass,” Dec. 2024. Accessed: Nov. 25, 2025. [Online]. Available: https://www.pnnl.gov/main/publications/external/technical_reports/PNNL-35507.pdf
[23] J. P. Cruz-Tirado, M. S. dos Santos Vieira, R. S. B. Ferreira, J. M. Amigo, E. A. C. Batista, and D. F. Barbin, “Prediction of total lipids and fatty acids in black soldier fly (Hermetia illucens L.) dried larvae by NIR-hyperspectral imaging and chemometrics,” Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 329, no. 125646, Dec. 2024, doi: https://doi.org/10.1016/j.saa.2024.125646.
[24] H. Nguyen et al., “Direct transesterification of black soldier fly larvae (Hermetia illucens) for biodiesel production,” Journal of the Taiwan Institute of Chemical Engineers, vol. 85, pp. 165–169, Apr. 2018, doi: https://doi.org/10.1016/j.jtice.2018.01.035.
[25] Ji Eun Lee et al., “Application of the Hydrodeoxygenation of Black Soldier Fly Larvae Lipids in Green Diesel Production,” Sustainability, vol. 16, no. 2, pp. 584–584, Jan. 2024, doi: https://doi.org/10.3390/su16020584.
[26] F. IJdema et al., “Modulating the fatty acid composition of black soldier fly larvae via substrate fermentation,” animal, vol. 19, no. 1, p. 101383, Jan. 2025, doi: https://doi.org/10.1016/j.animal.2024.101383.
[27] M. R. Tariq et al., “Black Soldier Fly: A Keystone Species for the Future of Sustainable Waste Management and Nutritional Resource Development: A Review,” Insects, vol. 16, no. 8, pp. 750–750, Jul. 2025, doi: https://doi.org/10.3390/insects16080750.
[28] S. Kim et al., “Removal of fat from crushed black soldier fly larvae by carbon dioxide supercritical extraction,” Journal of Animal and Feed Sciences, vol. 28, no. 1, pp. 83–88, Mar. 2019, doi: https://doi.org/10.22358/jafs/105132/2019.
[29] T. Wall, “Industrial symbiosis fine-tuned for BSFL pet food ingredients,” PetfoodIndustry, Sep. 13, 2024. https://www.petfoodindustry.com/insect-based-cat-and-dog-food/article/15683895/adm-industrial-symbiosis-finetuned-for-bsfl-pet-food-ingredients (accessed Jan. 22, 2026).
[30] A. Media, “Production extension takes Innovafeed to next level,” Aquafeed.com, May 24, 2023. https://www.aquafeed.com/newsroom/news/production-extension-takes-innovafeed-to-next-level/ (accessed Jan. 22, 2026).
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