Recent RFIs

Seeking inventors to help innovate for:

Non-Thermal Pasteurization

New cold pressed technologies are needed to increase
throughput and shelf life while decreasing costs.

Market Trends

  • The juice market has doubled in volume over the past decade
  • Health trends have created a new demand for luxury juices in markets where these products previously did not exist
  • Developing markets demand for packaged juice is on the rise
  • Developed markets are seeing increased demand for cold-pressed juices

Developing markets, such as Asia Pacific and Latin America, show an increased demand for juice products. In developed regions, the traditional juice market growth has slowed, but demand for cold-pressed or luxury juices is taking off.

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Successful Non-Thermal Pasteurization Technologies Will:

  • Extend Shelf Life – 63 to 77 days minimum
  • Have Low Regulation – New tech should be GRAS (Generally Recognized As Safe)
  • Generate Consumer Acceptance – Must maintain a clean label and consumers must perceive it to be healthy
  • Cost Less – Equipment and operating costs must be lower than current technology
  • Reduce Micro-organisms – Must achieve >5-log reduction in pathogenic and spoilage micro-organism load
  • Have a High Processing Rate – Prefer at least 25 kilo-liters/hour
  • Consider Packaging – Advantageous if the product can be sterilized in its packaging
  • Maintain Low Heat – Temperature of the food cannot exceed 24o C

Current Technology is Lacking

Dense Phase Carbon Dioxide (DPCD)

The rapid decompression of carbon dioxide from a pressure of 500lbs/in2 to ambient pressure. This is milder and lower pressure than HPP. Current limitations are low solubility in strong polar substances and poor selectively of some solutes.

Bacteriocins and Antimicrobial Ingredients

Biologically active peptides that inhibit the growth of spoilage or pathogenic bacteria. Current limitations with the range of bacteria they can inhibit.

High Pressure Processing (HPP)

Uses hydrostatic pressures to inactivate micro-organisms with minimal heating. Current limitations are high capital costs and low throughput.

Pulsed Light (PL) and UV light

Pulsed white light inactivates vegetative cells and spores on the surfaces of foods. Current limitations are in fluid foods where the micro-organisms are located far from the UV source and don’t receive photon contact because the fluid layer absorbs it.

Pulsed Electric Field (PEF)

High Voltage pulses reduce micro-organisms. PEF is limited to the types and viscosity of foods. Liquid foods with small particles and the presence of bubbles diminish efficacy.

Ozone/Cold Plasma

Ozone (O3) applied to food is highly reactive and causes deactivation of micro-organisms. Current limitations are significant loss of color pigment, and high oxidization potential that degrades organic compounds.


Enzymes are purified from microbial cells then added to foods. Current limitations are the cost of the enzymes, and in some products they must be inactivated or removed after processing.

Invention Suggestions

Dense Phase Carbon Dioxide (DPCD)

Solutions that focus on high-throughput. Commercial sized DPCD equipment with continuous operations is desired.

Bacteriocins and Antimicrobial Ingredients

New bacteriocins and antimicrobial ingredients that are considered GRAS and can reduce micro-organism load and be accepted by consumers.

High Pressure Processing (HPP)

Invention solutions that allow for continuous, high volume HPP rather than batch or semi-continuous as well as those that combining HPP with other technologies (DPCD, Ultrasound, PEF or PL or UV).

Pulsed Light (PL) and UV light

Technologies that thin or aerosolize the liquid to the extent that light can penetrate all the liquid or solutions that incorporate light during pre or post processing to augment pasteurization.

Pulsed Electric Field (PEF)

Solutions that resolve current limitations and include applications for liquid foods and those with small particles. Inventions for continuous, large capacity PEF equipment are desired.

Ozone/Cold Plasma

Because this technology has a tendency to destroy juices, it can’t be used during the processing stage. However during pre-processing, it has little effect on whole fruits and vegetables while reducing micro-organisms. Solutions that improve or integrate this with other technologies would be considered.


New enzymes that are considered GRAS and can reduce micro-organism load and be accepted by consumers.

The Non-Thermal Pasteurization Invention Opportunity is now closed.

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Learn More

Professional isolation is not good for the inventor’s soul. I find collaborating with other Xinova members often leads to better ideas, in fact, some of my recruits have become co-authors on inventions I’ve subsequently sold to Xinova. For me, getting to focus on idea generation and leave the IP protection to someone else is a great opportunity to invent in realms I could not access otherwise. I credit more than half of my income and much of my success to Xinova. There’s no other company besides Xinova that buys ideas from independent innovators.

Dr. Shmuel Ur
Full-time Inventor and
CEO of Shmuel Ur Innovations Ltd.
Shorashim, Israel

Xinova has more invention opportunities

Login or join our inventor community to view all current Requests for Invention (RFIs) and to access the full RFI document for each of these opportunities.

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Seeking inventions that enable the reuse of evaporated water captured from dry snack manufacturing.

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Atmospheric Water Generation

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Processing Bio-Based Composite Films for Food Packaging

Seeking viable and commercial scale methods for the processing and conversion of bio-based composites.

In-Line Food Processing Sensors

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Flexible-to-Rigid Packaging

Seeking inventions that create new rigid packaging solutions formed from flexible materials.

Fecal Sludge Dewatering

Seeking inventions that enable rapid dewatering of fecal sludge.

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