Dozens of food tech companies in Israel are striving to pioneer innovative methods to produce meat without slaughtering animals.To achieve this goal, scientists adopt cutting-edge 3D bioprinting technology.
According toArik Kaufman, chief executive officer of Israeli company Steakholder Foods Ltd, the shape and thickness of the 3D-printed meat can be programmed to meet personal preferences.
The process works by first selecting the animals to extract the stem cells from. The cells are selected from animals that will provide the best meat and yield.The next step is proliferation, in which the cells are placed into a nutrient rich reactor to multiply.
When the cells reach optimal numbers, the stem cells differentiate into muscle cells and fat cells. In the final steps, the muscle cells and fat cells are turned to meat, ready to be processed into the final product, be it a burger, a steak, or even a meatloaf.
Due to the high cost of 3D-printed meat and its taste is quite different from ordinary beef, for many start-ups in this field, mass production still faces certain challenges.
According to the United Nations Food and Agriculture Organization(FAO), total emissions from global livestock represent 14.5 percent of all anthropogenic GHG(greenhouse gas) emissions.Cattle are the animal species responsible for the most emissions, representing about 65 percent of the livestock sector’s emissions.
研究人员表示,比起传统的肉类生产,培养肉能够减少对环境的恶劣影响。
Researchers suggest that lab-made beef is bound to reduce the environmental toll from conventional meat production methods.
A 2019 report from the University of Oxford suggests "cultured meat" grown using tissue engineering techniques produces up to 96% less greenhouse gas emissions, 45% less energy, 99% lower land use, and 96% lower water use than the conventional process.
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