AUTHENTICITY TESTING OF FRUIT JUICE
Detection of Undeclared
Addition of Corn Syrup to Apple or Orange Juice
There are significant economic incentives
to adulterate apple or orange juice with less expensive sugar solutions, no more so than
when poor harvests result in a shortfall in fruit for processing. The simplest method of
extending a fruit juice, known to be practiced by less scrupulous people, is to add
inexpensive sugar and dilute with water to rebalance the sweetness. Luckily, the addition
of inexpensive corn syrup or cane sugar to apple or orange juice can be detected by
carbon-13 analysis.
Fruit Juice Carbon-13 Analysis .............. (Catalogue No.: FC32)
See Example Laboratory Report
Our Fruit Juice Carbon-13 Analysis allows detection
of undeclared addition of corn syrup, including high fructose corn syrup,
to apple or orange juice. It is conducted every week to the standards required
by the Association of Official Analytical Chemists (AOAC) Method 981.09 - Carbon
ratio mass spectrometric method for detection of corn syrup in apple juice and Method
982.21 - Carbon ratio mass spectrometric method for detection of corn syrup
in orange juice.
We require a minimum of 10 ml of apple or orange juice, or 1
gram of concentrate, to be supplied for analysis. Our laboratory reports include
carbon-13 content of the juice, as determined by duplicate analysis, and an
interpretation of the outcome of the analysis.
For further information on isotope analysis of fruit juice water please
Email us or use our
quote form.
Also see: Authentication of Fruit Juice Water for
the detection of undeclared addition of corn syrup to fruit juice.
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