Monellin

Monellin is a protein that is found in the fruit of the Serpentwood plant (Dioscoreophyllum cumminsii). It is a sweet protein that is approximately 3,000 times sweeter than sucrose by weight. Monellin is used as a low-calorie sweetener and is of interest in the study of taste and dietetics.

History[edit]

Monellin was first discovered in the 1960s by researchers exploring the Serpentwood plant. The protein was named after the Monell Chemical Senses Center, a non-profit scientific institute dedicated to research on taste and smell.

Structure[edit]

Monellin is a small protein composed of two polypeptide chains, A and B, which are held together by disulfide bonds. The A chain contains 44 amino acid residues, while the B chain contains 50. The protein has a unique tertiary structure that allows it to bind to the sweet taste receptor on the tongue.

Sweetness[edit]

The sweetness of monellin is due to its ability to bind to the sweet taste receptor on the tongue. This binding triggers a signal to the brain, which perceives the taste as sweet. Unlike sucrose, monellin does not contribute to calorie intake, making it a popular choice for low-calorie diets and diabetic diets.

Uses[edit]

Monellin is used as a low-calorie sweetener in various food products. It is also used in scientific research to study the mechanisms of taste and the role of sweet proteins in diet and health.

Safety[edit]

Monellin is generally recognized as safe for consumption. However, like all proteins, it can cause allergic reactions in some individuals.

References[edit]

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