I read this morning that labs here use something called "thin layer
spectroscopy" to look for the large molecules characteristic of added
sugars. Article said 90% of honey sold in Japan comes from China, at
wholesale about ¥500 (say, five US dollars) per kilogram. Break-even
in stores is ¥800 per kilogram, so the profits are pretty small.
About 20& of the stuff analyzed turns out to have been adulterated.
On Saturday, May 26, 2007, at 00:11 Asia/Tokyo, Marshall Dudley wrote:
Jonathan B. Britten wrote:
In Japan, as I write, there's a big scandal about honey, both
domestic and imported. Some mfgrs. have been adding sweeteners to
their "pure" honey had at last were found out. Lots of "pure
honey" on sale at half price in the groceries these days!
I am not sure how the scam was exposed.
Turns out that telling if sugar has been added to honey is pretty
simple. Sugar molecules have handedness, and will rotate light by a
certain amount right or left depending on the sugar and the handedness
of the molecule. If I remember right the handedness of pure honey is
one direction, unless made from sucrose, in which it is then the other
direction. So a simple test with polarized light can determine if it
has been adulterated this way, and if so, how much.
Marshall
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