Beefing up the flavour of cultured meat


Tuesday, 10 June, 2025

Beefing up the flavour of cultured meat

In order to create the best cultured meat, it is essential to understand the flavour compounds that can make conventional meat delicious.

In an article published in Food Chemistry, researchers from the Institute of Industrial Science, The University of Tokyo, have measured and found a way to control the key amino acids responsible for flavour in a step toward making cultured meat taste just like the real thing.

“We know that free amino acids strongly influence the flavour of traditional meat, and their levels generally increase during the aging process,” said lead author, Mai Furuhashi. “However, we noticed that the role of free amino acids in the flavour perception of cultured meat has received little research attention.”

Amino acids can be used to build proteins, but when amino acids are instead in their free form they contribute to meat’s flavour: glutamic acid imparts umami, for example, while alanine is sweet. The researchers aimed to further clarify amino acids’ role in the flavour of cultured meat.

The team first obtained muscle cells from conventional meat, which were then grown in a nutrient bath. The cells then underwent cell differentiation, to grow a fibre-like structure, like the tissues in conventional meat. Some samples were then collected to be aged, while others were not.

Liquid chromatography was used to identify and quantify free amino acids in the aged and non-aged cultured meat cells. The researchers found that the levels of free amino acids increased significantly during the aging of bovine cells, with some notable differences compared with conventional meat.

“The levels of free amino acids decreased during differentiation but increased during aging,” said senior author, Shoji Takeuchi. “The surprise was that the levels of free amino acids in cultured muscle cells were actually double those in conventional beef.”

Glutamic acid was the most prominent amino acid in cultured muscle cells, followed by aspartic acid, which may suggest it has a strong umami flavour. Conventional beef was sweeter, with high amounts of alanine.

Moreover, the amount of free amino acids located in the culture medium also influenced the intracellular free amino acids, which also influenced the flavour compounds of cultured meat.

“Increasing levels of a particular amino acid in the medium increased the levels in the cells,” Takeuchi said. “This is exciting because it means we should be able to control the flavour profile of cultured meat.”

Although other flavour components also require investigating, the research could help to further the ability to control the flavour of cultured meat.

Image credit: iStock.com/luza studios

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