一块肉的诞生 (The Birth of a Piece of Meat)

2013年，荷兰马斯特里赫特大学教授马克·波斯特在伦敦展示了世界上第一块实验室培养牛肉汉堡，造价高达33万美元。十年后的今天，培养肉的成本已经下降了超过99%。美国食品药品监督管理局（FDA）和美国农业部已联合批准了多家公司的培养肉产品上市销售，这个曾经遥不可及的概念正在变成超市货架上的现实。

In 2013, Professor Mark Post of Maastricht University in the Netherlands showcased the world's first lab-grown beef burger in London, at a staggering cost of $330,000. A decade later, the cost of cultured meat has dropped by more than 99%. The U.S. Food and Drug Administration (FDA) and the U.S. Department of Agriculture have jointly approved cultured meat products from multiple companies for retail sale, turning this once-distant concept into a reality on supermarket shelves.

培养肉的原理并不复杂。科学家从动物身上提取少量干细胞，在实验室中提供适宜的营养液、温度和生长因子，让细胞自然增殖和分化，最终形成肌肉组织。整个过程不需要饲养和屠宰动物，用水量减少96%，温室气体排放降低92%，土地使用减少95%。

The principle behind cultured meat is not complicated. Scientists extract a small number of stem cells from animals and provide them with suitable nutrient solutions, temperatures, and growth factors in the laboratory, allowing the cells to naturally proliferate and differentiate into muscle tissue. The entire process requires no raising or slaughtering of animals, reducing water usage by 96%, greenhouse gas emissions by 92%, and land use by 95%.

从实验室到市场 (From Lab to Market)

美国的Upside Foods和GOOD Meat是首批获得监管批准的培养肉公司。2024年，它们的产品开始在旧金山和华盛顿特区的高端餐厅限量供应。一块培养鸡肉的零售价约为每磅17美元，虽然仍高于传统鸡肉的每磅3-4美元，但已经接近消费者可接受的范围。

Upside Foods and GOOD Meat in the United States are among the first cultured meat companies to receive regulatory approval. In 2024, their products began limited distribution at upscale restaurants in San Francisco and Washington, D.C. A pound of cultured chicken retails for approximately $17, still higher than conventional chicken at $3-4 per pound, but approaching the range consumers might find acceptable.

新加坡则走在更前面。2020年，新加坡成为全球第一个批准培养肉销售的国家。Eat Just公司的培养鸡肉产品已在新加坡的多家餐厅和超市上架。以色列的Aleph Farms也在2024年获得了监管批准，计划推出培养牛排产品。

Singapore has moved further ahead. In 2020, Singapore became the first country in the world to approve the sale of cultured meat. Eat Just's cultured chicken products are available in multiple restaurants and supermarkets across Singapore. Israel's Aleph Farms also received regulatory approval in 2024, planning to launch cultured beef steak products.

规模化生产的关键瓶颈 (Key Bottlenecks for Mass Production)

培养肉面临的最大挑战是规模化生产。目前全球培养肉的年产量不到1万吨，而全球肉类年消费量超过3.5亿吨。要实现真正的商业化，培养肉的产量需要增长数百倍。这要求更大规模的生物反应器、更低成本的培养基，以及更高效的细胞培养技术。

The biggest challenge facing cultured meat is scaling up production. Currently, global cultured meat production is less than 10,000 tons per year, while global meat consumption exceeds 350 million tons. To achieve true commercialization, cultured meat production needs to increase by several hundred times. This requires larger bioreactors, lower-cost culture media, and more efficient cell cultivation technologies.

另一个障碍是消费者接受度。多项调查显示，约有40%的消费者对食用"实验室培养的肉"持保留态度，尽管其营养价值与传统肉类完全相同。如何消除"实验室"这个词带来的心理抵触，是培养肉行业需要解决的营销难题。

Another barrier is consumer acceptance. Multiple surveys show that approximately 40% of consumers have reservations about eating "lab-grown meat," despite its nutritional profile being identical to conventional meat. How to overcome the psychological resistance associated with the word "lab" is a marketing challenge the cultured meat industry must address.

未来食物的新版图 (The New Landscape of Future Food)

培养肉只是未来食品革命的一部分。精密发酵技术正在生产无动物乳蛋白，植物基肉类的口感越来越接近真肉。食品科学家预测，到2040年，实验室培育的蛋白质可能占据全球蛋白质市场的15%到20%。这场关于"肉"的重新定义，正在改变人类与食物的关系。

Cultured meat is only part of the future food revolution. Precision fermentation technology is producing animal-free dairy proteins, and plant-based meats are becoming increasingly similar in texture to real meat. Food scientists predict that by 2040, lab-cultivated protein could account for 15% to 20% of the global protein market. this redefinition of "meat" is transforming the relationship between humans and food.

【重点词汇】

• cultured /ˈkʌltʃərd/ adj. 培养的 — Cultured meat is grown from animal cells in a laboratory.
• proliferate /prəˈlɪfəreɪt/ v. 增殖，扩散 — Stem cells proliferate rapidly under the right conditions.
• regulatory /ˈreɡjələtɔːri/ adj. 监管的 — The product received regulatory approval from the FDA.
• bioreactor /ˌbaɪoʊriˈæktər/ n. 生物反应器 — Large-scale bioreactors are needed for mass production.
• acceptance /əkˈseptəns/ n. 接受度 — Consumer acceptance remains a significant challenge.
• fermentation /ˌfɜːrmenˈteɪʃn/ n. 发酵 — Precision fermentation creates dairy proteins without cows.
• greenhouse gas /ˈɡriːnhaʊs ɡæs/ n. 温室气体 — Cultured meat produces far fewer greenhouse gas emissions.
• scalability /ˌskeɪləˈbɪləti/ n. 可扩展性 — Scalability is the primary obstacle for the industry.

【语法要点】

• 倍数表达（has dropped by more than 99%）：by + 百分比表示"下降/增加了多少"，注意与 to 的区别。
• 让步让步（although...）：although 引导让步状语从句，放在主句后时用逗号隔开。
• 现在完成时被动语态（has been approved）：表示"已经被批准"，强调过去的动作对现在的影响。