365/366 Photo a Day Blog | Sweet Lovin

Sweet Lovin : January 13, 2010

Image Data
File Name: 7D_23432
Model: Canon EOS 7D
Lens: EF 70-200mm F/2.8L USM
Date: 01.09.10 3:25pm
Focal Length: 120mm (192mm)
Shutter: 1/200 s
F-Stop: F2.8
ISO: 800
Program: Manual
Metering: Multi-segment
Focus Distance: 13.80 m

Sweet Lovin

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01.13.2010
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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. 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. In natural settings of the sort our primate ancestors evolved in, 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.

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