Recent developments in the characterization and biotechnological production of sweet-tasting proteins |
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Authors: | I Faus |
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Institution: | (1) Laboratory of Biotechnology, URIACH GROUP, Arnau de Vilanova, 22-42, E-08105 Sant Fost de Campsentelles (Barcelona), Spain e-mail: urquima@uriach.com Tel.: +34-93-5705450 Fax: +34-93-5702476, ES |
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Abstract: | The state of the art regarding the six known sweet-tasting proteins (thaumatin, monellin, mabinlin, pentadin, brazzein and
curculin) and the taste-modifying protein miraculin is reviewed. Their biochemical properties, molecular genetics and biotechnological
production are assessed. All of these proteins have been isolated from plants that grow in tropical rainforests. They share
no sequence homology or structural similarities. Nonetheless, one of them, thaumatin, shares extensive homology with certain
non-sweet proteins found in other plants. The potential industrial applications of the sweet-tasting proteins are also discussed,
placing special emphasis on the barriers that a recombinant product of these characteristics will have to overcome before
it reaches the market.
Received: 14 June 1999 / Received revision: 30 August 1999 / Accepted: 3 September 1999 |
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