Bitterness representation

Fig. 34a.—Schematic Representation of the Structural Parameters for Sweet and Bitter Taste. [nj/e and n /e represent the systems of the stimulant and the receptor respectively.]...

Fig. 35.—Diagrammatic Representation of the Topologies of the Areas Representing the Sweet (Circle) and Bitter (Hexagon) Modalities. ...

The general model developed for sweet and bitter compounds leads to a sweet-bitter receptor, which can be given formal representation as a hydrophobic pocket with a bipolar system (Fig. 

Figure 16. Representation of the hydrophobic pocket and the polar contact groups of a formal sweet-bitter receptor...

Lemon CH, Smith DV. 2005. Neural representation of bitter taste in the nucleus of the solitary tract. J Neurophysiol 94 3719-3729. 

A comprehensive representation of different approaches to obtain the operating lines of reetification columns is given by Bitter in [2.59, 2.60]. 

FIGURE 7.9 The impact of chirality in (a) the biologically active adrenaline (epinephrine), (b) The two enantiomers of aspartame—only one of them is sweet, and it is sold under the name Nutrasweet. The other enantiomer of aspartame is bitter. All the molecules are shown also with 3D ball-and-stick representations. The arrows point to chiral centers of interest. 

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