logo
    Evaluation of relative sweetness and sensory characteristics of tagatose
    1
    Citation
    0
    Reference
    20
    Related Paper
    Citation Trend
    Abstract:
    Tagatose is emerging as a very promising sugar substitute. In this study relative sweetness and sweetness characteristics of tagatose were evaluated and effect of concentration on these characteristics was also tested. The quality of sweetness was judged in terms of overall temporal profile of sweetener, any objectionable taste (bitterness, astringency, chemical-like sensations, etc.) and cooling effect. The relative sweetness and sweetness characteristics were tested through sensory evaluation by panel of experienced judges. The relative sweetness of tagatose was found 0.91. Sweetness characteristics of tagatose were found almost similar to that of the sucrose. The relative sweetness and sweetness characteristics of tagatose were not affected by change in its concentration in the range of 3.3 to 22.0%.
    Keywords:
    Sweetness
    ABSTRACT The sweetness characteristics of sucrose, fructose, aspartame, acesulfame K, sodium saccharin and calcium cyclamate were studied in aqueous and lipid model food systems with and without lemon or vanilla flavoring. Anchored linear scales were used to evaluate sweetened model systems for initial, maximum and residual sweetness intensity and nonsweet aftertaste. Data were analyzed by analyses of variance. Flavor did not influence sweetness, except where residual sweetness was more intense in lemon and vanilla solutions than in plain solutions. No sweetener was perceived exactly like sucrose. Intensity and sweetness profiles varied between systems and among sweeteners. Character of the food system influenced perceptions of sweetness and aftertaste.
    Sweetness
    Aftertaste
    Aspartame
    When we refer to food as containing “sugar,” we tend to picture white crystals we buy in bags or pour from sachets into our coffee, but to a food scientist sugar is not a single thing, but a type of thing. While, most commonly, when we say sugar we refer to sucrose, in reality there are many sugars that can be found in (or added to) food. They all have in common the chemical characteristic that they are carbohydrates, which means, as the name suggests, that they are based on carbon and water (giving hydrated carbon), and indeed the three core elements found in all sugars are carbon, hydrogen, and oxygen. One of the simplest sugars, molecularly speaking, is glucose, in which there are 6 carbon atoms, 6 oxygen atoms and 12 hydrogen atoms (so it is like 6 carbons plus 6 water molecules, as each water molecule has two hydrogens to one oxygen). These are arranged, not in a long chain, as in the proteins we discussed in the previous chapter, but rather in a ring structure (not technically round, but more like a hexagon might appear if you gave it a good twist). Glucose is the main sugar found in biology, being found in our bodies and also produced by plants by photosynthesis. Another simple sugar is fructose, found widely in fruit and honey, which has an even simpler structure, a pentagon structure, but again has 6 carbon atoms bound together with 6 oxygens and 12 hydrogens, while a rarer one (at least in its unbound state) is galactose, again with the same number of the core atoms but arranged in yet another slightly different state. Here is a wonderful example of the significance of chemistry for food, where the exact same number of atoms of the same three elements can naturally be found in (at least) three different arrangements, which reflect subtly different molecular shapes but yet give compounds that differ greatly in their sweetness, solubility, reaction with other components in food, and many other properties.
    Carbon fibers
    Sweetness
    Sweetness and the pleasantness of sweetness of sucrose solutions and sweetened food conform to different functions. Sweetness rises with concentration, whereas pleasantness first rises and then decreases. The breakpoint appears to occur at a constant sweetness (that is, constant sensory) level.
    Sweetness
    Constant (computer programming)
    Citations (171)