Sweetness
![Sweet foods, such as this [[strawberry](https://upload.wikimedia.org/wikipedia/commons/4/43/Strawberry_shortcake.jpg)
The perceived intensity of sugars and high-potency sweeteners, such as aspartame and neohesperidin dihydrochalcone, are heritable, with gene effect accounting for approximately 30% of the variation.
The chemosensory basis for detecting sweetness, which varies between both individuals and species, has only begun to be understood since the late 20th century. One theoretical model of sweetness is the multipoint attachment theory, which involves multiple binding sites between a sweetness receptor and a sweet substance.
Studies indicate that responsiveness to sugars and sweetness has very ancient evolutionary beginnings, being manifest as chemotaxis even in motile bacteria such as ''E. coli''. Newborn human infants also demonstrate preferences for high sugar concentrations and prefer solutions that are sweeter than lactose, the sugar found in breast milk. Sweetness appears to have the highest taste recognition threshold, being detectable at around 1 part in 200 of sucrose in solution. By comparison, bitterness appears to have the lowest detection threshold, at about 1 part in 2 million for quinine in solution. In the natural settings that human primate ancestors evolved in, sweetness intensity should indicate energy density, while bitterness tends to indicate toxicity. The high sweetness detection threshold and low bitterness detection threshold would have predisposed our primate ancestors to seek out sweet-tasting (and energy-dense) foods and avoid bitter-tasting foods. Even amongst leaf-eating primates, there is a tendency to prefer immature leaves, which tend to be higher in protein and lower in fibre and poisons than mature leaves. The "sweet tooth" thus has an ancient heritage, and while food processing has changed consumption patterns, human physiology remains largely unchanged. Provided by Wikipedia
21
Published: 1986
Superior document: Beiträge zu der internationalen Wirkung Johann Joachim Winckelmanns 4/5
22
23
24
Published: 2010.
Superior document: Constitutionalism and democracy
25
Published: c2008.
Superior document: Artech House microwave library
26
27
Published: c2013.
28
Superior document: Sonderdruck aus FS für Max Leller 1989 117ff
29
30
Published: 2021.
31
Published: 1984
32
Postwar fertility trends and differentials in the United States / Ronald R. Rindfuss, James A. Sweet
Published: 1977
33
Published: 1987
34
Published: 1911
35
Published: [2016]
Superior document: Title is part of eBook package: De Gruyter UTP eBook-Package Backlist 2000-2015
Links: Get full text; Cover
36
Published: 2007.
Superior document: Toronto Studies in Philosophy
Links: Get full text
37
Published: [2016]
Superior document: Title is part of eBook package: De Gruyter University of Toronto Press eBook-Package Archive 1933-1999
Links: Get full text; Get full text; Cover
38
Other Authors:
“...Sweet, Louise E....”
39
40
Other Authors:
“...Sweet, Louise E....”