The separator is the only machine sold on spores specifically
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A bactofuge is a centrifuge run hot enough, usually 50–60 °C, to thin the milk so spores and cells migrate outward faster than the cream. Tetra Pak rates its range at 5,000 to 55,000 litres an hour with up to 99% reduction of incoming bacterial levels, naming aerobic spores such as Bacillus cereus and anaerobic spores as the target. Alfa Laval sells the same class of machine on the same claim.
The removal step is already sold, and it is sold on other grounds
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Bactofugation is a catalogue product from at least three vendors, ranked on throughput and specified on bacterial reduction. GEA positions its version as two bacteria-removing separators dropped into an existing pasteurisation line, sold on low investment and running cost. Used 25,000 litre-per-hour machines trade secondhand.
Strategy
Every process patent in this field belongs to a dairy, and three of the four families are Chinese
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The filings that describe how a plant should be run come from operators, each naming a product the company already makes. Huangshi Group South China Dairy claims a low-temperature separation sequence that freezes the concentrate instead of drying it. Guangxi Royal Dairy Industry claims a buffalo-milk line built around a 0.09-second hold at 144 °C. Xinjiang Fengtuoyuan Dairy Technology claims three filter tanks in series for camel milk, with a cleaning circuit into every stage. Dairy Protein Coop Food claims the bowl-residence trick for goat milk, filed in New Zealand and granted in the US.
Research
Membranes get more logs, and the pore size is the setting that decides how many
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Cold ceramic microfiltration at 1.2 micrometres removed 4.57 log of Bacillus licheniformis spores from skim milk, against 2.17 log at 1.4 micrometres, while Geobacillus spores came out almost completely at either pore size. Tetra Pak states up to 99.95% removal of bacteria and spores ahead of UHT.
Market
The approvals reaching market cover pathogens, and spores survive them
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The clearest commercial clearance of the period is Tamarack Biotics' TruActive ultraviolet platform, accepted by the FDA and confined to powdered dairy ingredients such as whey and milk protein concentrate, with liquid raw milk targeted for 2027. The claim behind it is log reduction of pathogens, five logs of the most UV-resistant organisms and seven including Mycobacterium avium paratuberculosis. No spore inactivation is reported for it. The route to market is licensing the platform to dairy ingredient producers.
Strategy
The separator makers patent the drum, and their filings are older
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GEA Westfalia Separator's 2024 application claims a distributor with second openings that feed part of the product outward into the drum, described as a bacteria-removing separator for sterilising milk. Tetra Laval's 2019 filing stacks a sub-stack of microorganism-clarification discs and a sub-stack of milk-fat separation discs in one bowl, sharing a distribution channel. GEA Mechanical Equipment's 2017 separator places a clarifying agent inside an inner drum and has drawn twelve forward citations across eleven jurisdictions.
Research
Two complete processes exist, and the newer one puts the milk through 144 °C
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Only two filings describe a full sequence rather than a unit operation.
Market
The one regulation that moved was a border certificate on a contaminated ingredient
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On 24 February 2026 the European Commission required consignments of arachidonic acid oil from China to carry an official certificate and laboratory results showing absence of cereulide, with identity and physical checks on half of consignments and a transitional window to 26 April. It followed recalls that began in December 2025 and reached 99 countries and territories, with 144 suspected and confirmed cases across ten countries. Nestlé, Danone and Lactalis were among the companies recalling, with losses reported in millions of dollars of sales.