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Nanyang Polytechnic develops world’s first unagi cell lines and plant-based growth serum

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Consumers can expect to enjoy lab-grown unagi and other fishes as early as 2024

SINGAPORE – Media OutReach – 16 January 2023 – Nanyang Polytechnic’s School of Applied Science (SAS) successfully developed proprietary cell lines for high value fish species that cannot be farmed. These cell lines are the first in the world to grow on an ethically viable plant-based alternative to the more commonly used fetal bovine serum.


As the world becomes increasingly vulnerable to supply shocks and disruptions, food resilience and sustainability have steadily become a top priority. Currently, for example, Singapore imports more than 90% of its food, leading to its Government setting a “30 by 30” goal of meeting 30% of Singapore’s nutritional needs by 2030.

In addition, with rampant overfishing causing marine populations to dwindle drastically, enjoying traditional seafood dishes may soon become a problem. One-third of commercial fish stocks are harvested at biologically unsustainable levels, and a staggering 90% are exploited.[1]

The development of the fish cell lines was led by Mark Richards, NYP’s Lead Specialist in Aquaculture Technology, with funding support from the Singapore Food Story R&D Grant managed by Singapore Food Agency and A*STAR. To address ethical concerns raised on the usage of fetal bovine serum for cell lines, the NYP team used an alternative serum extracted from a plant source. With significant cost savings from using the plant-based serum, fish cells can now be grown in a more sustainable manner, and at a larger scale.

Dr Joel Lee, Director of Nanyang Polytechnic’s School of Applied Science, said, “We’ve worked on a variety of food fish species, but we have had the most success with unagi, which is unfarmable today. Through our R&D, we were able to transform and develop the fish cells into products like fish cakes and fillets, while prioritising and addressing the sustainable and ethical concerns of seafood farming.”

NYP has licensed three of the in-house developed proprietary cell lines to Umami Meats, a Singapore-based food tech start-up developing sustainable seafood, for retail. They include the Japanese eel/unagi (Anguilla japonica), humpback grouper (Cromileptes altivelis), and orange-spotted grouper (Epinephelus coioides). It is expected that seafood products developed using these cell lines will be available as early as 2024.

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About Nanyang Polytechnic

Established as an institution of higher learning in 1992, Nanyang Polytechnic’s (NYP) academic schools offer quality education and training through 40 full-time diploma courses and common entry programmes. NYP also has a full suite of Continuing Education and Training (CET) options for lifelong learning, ranging from specialist and advanced diplomas, to SkillsFuture-supported modules and courses. NYP’s Asian Culinary Institute Singapore and the Singapore Institute of Retail Studies are CET institutes set up in partnership with SkillsFuture Singapore (SSG) to champion and transform Singapore’s F&B and retail sectors respectively. A third NYP CET institute – the National Centre of Excellence for Workplace Learning – also set up in collaboration with SSG, will spearhead the development of progressive workplace learning strategies and programmes for companies here.

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