A type of rice substitute made from a mix of maize, arbila, and cowpea has more lysine and leucine per gram of protein than a version made only from maize. These two amino acids are necessary for...
Mechanism
Synthesis from 1 study
Mixing corn with beans like arbila and cowpeas makes the protein better because beans have more of the amino acids corn lacks. But the numbers in the claim — over 270 grams of a single amino acid per 100 grams — are impossible, since that’s more than the total weight of protein in the whole food.
Most probable mechanism
When you mix different plant foods like corn, a legume called arbila, and cowpeas, each one brings different building blocks for proteins. Corn is low in some key building blocks, but the legumes have more of those missing ones. When eaten together, they fill in the gaps, making the total protein better for the body to use.
Different plant sources contain varying proportions of essential amino acids due to differences in their genetic coding and protein synthesis pathways.
Combining cereals with legumes increases the overall lysine and leucine content in the final product because legumes are naturally richer in these amino acids than cereals.
The measured amino acid concentrations in the blended analog rice reflect the proportional contribution of each ingredient's native amino acid profile.
Evidence from Studies
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