Supercritical CO2 extraction for reduced-fat potato chips
Green, food-grade supercritical CO2 extraction technology for removing post-frying oils from potato chips. Thar Process offers pilot-scale R&D and toll processing to optimize process parameters, preserve taste and texture, and produce low-fat snack products using sustainable, solvent-free technology.
Overview
This solution leverages supercritical carbon dioxide (SC-CO2) extraction to reduce or remove post-frying oils from potato chips. Because the oils used in frying are highly soluble in SC-CO2, this food-grade, non-toxic, and environmentally sustainable technology can effectively extract residual fat while preserving chip structure. Prior published research confirms that up to 100% of oil can be extracted under optimized conditions, with chips remaining largely intact. Thar Process brings decades of expertise in supercritical fluid technologies to help snack food manufacturers develop cleaner-label, lower-fat products without compromising sensory quality.
Technical specifications
Key features:
- Utilizes supercritical CO2 as a green, non-toxic solvent with no residual solvent contamination
- Applicable to post-frying oils in potato chips and similar snack products
- Process parameters to be optimized include pressure, solvent-to-feed ratio, temperature, and feed loading mode
- Responses measured include oil content, mass yield, and texture analysis
- Supported by analytical platforms including UPLC-UV/MS and SFC-UV/MS
- Scalable from laboratory R&D through pilot-scale production
Technology readiness level
The underlying concept has been scientifically validated through published research and prior patents. Thar Process now seeks to advance the technology by applying Design of Experiments methodology at a pilot-scale facility featuring two 12-liter SCFE vessels capable of pressures up to 600 bar. Remaining validation needs include comprehensive sensory evaluation and cost analysis to confirm commercial viability. Collaborative third-party analyses will supplement in-house capabilities as needed.
About Thar Process
Thar Process is a global technology and services company specializing in supercritical CO2 extraction and purification solutions. Founded in 1990 and based in Pittsburgh, the company engineers and fabricates specialized equipment, such as SuperFast extraction systems and Isolator supercritical fluid chromatography (SFC) systems. These technologies enable sustainable, solvent-free processing by utilizing upcycled CO2 to separate and isolate high-value molecules, including natural products, pharmaceutical APIs, and synthetic compounds. Their operations span from laboratory-scale R&D to large industrial-scale production, supported by certified cGMP, USDA Organic, Kosher, and Halal facilities.
By replacing traditional hydrocarbon-based processes with green, supercritical technologies, Thar Process helps customers in the nutraceutical, food, cosmetic, and pharmaceutical industries create safer, cleaner products. The company offers contract R&D and toll processing services, providing a single-point-of-access for businesses looking to improve product quality and sustainability without the capital expenditure of building their own systems. Thar Process works with clients on five continents to solve complex challenges in sterilization, impregnation, and material remediation, adhering to its core principles of People, Planet, and Profit.
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