Purfresh controlled atmosphere shipping container. ( Wheatsheaf Group )

Through its food-safety solutions subsidiary TriStrata Group, U.K.-based Wheatsheaf Group Limited has acquired 90% of Purfresh, which sells specialized controlled atmosphere systems that lower the risk of spoilage-related cargo loss in refrigerated ocean shipping containers.

Based in San Francisco, Purfresh’s technology combines controlled atmosphere and active atmosphere with ozone technology to reduce food waste by delaying ripening and reducing decay, according to a Feb. 7 news release. The technology extends shelf life and improves food safety, reducing foodborne pathogens without using chemicals.

“Purfresh aligns very closely with our strategy of investing in companies that drive efficiencies in the food supply chain while also providing a tangible social benefit,” Graham Ramsbottom, CEO of Wheatsheaf, said in the release.

The cloud-based, proprietary cargo-monitoring software, Intellipur, provides customers with real-time visibility into, and remote control of, the conditions of temperature-sensitive cargo shipped globally, according to the release.

Intellipur is typically used for shipping high-value blueberries, avocados and mangos, but also offers ozone atmosphere technology for grapes, pineapples and citrus products which don’t continue ripening after harvest, according to the release. Purfresh’s customers include global ocean carriers, third-party logistic companies, fruit growers and international fruit import and export companies.