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ChemWell
Automated
Food & Beverage Process Control
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Ammonia UniTab Reagent:
An enzymatic test kit for
determination of ammonia in foods, beverages and other samples. Contains
enzymes, substrates and buffer components in tablet form and as aqueous
solutions and suspensions.
Each
reagent tablet is dissolved in 5 mL of deionized water, permitting the user to
prepare only as much working reagent as required for daily use.
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Automated
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D-Glucose/Fructose UniTab
Reagent:
An enzymatic
test kit for determination of total D-glucose plus D-fructose (reducing sugars)
in foods, beverages and other samples. Contains enzymes, substrates and buffer
components in tablet form and as aqueous solutions and suspensions.
The D-Fructose Standard, provided
in addition to the D-Glucose Standard, is of particular benefit in monitoring
the (slower) PGI mediated reaction. Each reagent tablet is dissolved in 5 mL
of deionized water, permitting the user to prepare only as much working reagent
as required for daily use
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L-Malic Acid Unitab Reagent:
An enzymatic test kit for determination of L-malic acid in foods, beverages and
other samples. Contains enzymes, substrates and buffer components in tablet
form and as aqueous solutions and suspensions.
Each reagent tablet is dissolved
in 5 mL of Malic Acid Buffer, permitting the user to prepare only as much
working reagent as required for daily use.
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Automated
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Primary Amino Nitrogen UniTab
Reagent: A test kit
for determination of primary amino nitrogen compounds (NOPA) in foods, beverages
and other samples. Contains buffer tablets, ophthaldialdehyde, and
Nitrogen Standard Solution.
Each tablet is dissolved in 5 mL
of deionized water, permitting the user to prepare only as much working reagent
as required for daily use. This "fast blanking" method only requires working reagent
(the blank reagent solution is no longer required). This procedure is based on a published method
from UC Davis.
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Food & Beverage Process Control
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D-Glucose/Fructose UniFlex Reagent:
An enzymatic test kit
for determination of both D-glucose and D-fructose (reducing sugars) in foods,
beverages and other samples. Two enzyme suspensions (Hexokinase/G6PDH and PGI)
are provided, permitting independent determinations of D-glucose and D-fructose.
Also contains ready to use aqueous substrates solution, as well as D-fructose
and D-glucose standards. The Fructose Standard is of particular benefit in
monitoring the (slower) PGI mediated reaction.
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Automated
Food & Beverage Process Control
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L-Malic Acid UniFlex Reagent:
An enzymatic test kit
for determination of L-malic acid in foods, beverages and other samples.
Contains ready to use aqueous substrate and buffer solutions.
Two enzyme suspensions (Malate
Dehydrogenase and GOT) are provided.
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Acetic Acid UniFlex Reagent:
An enzymatic test kit
for determination of acetic acid in foods, beverages and other samples.
Contains ready to use aqueous buffer, MDH/Citrate synthase enzyme suspension,
ACS enzyme diluent, and acetic acid standard. Also contains in dry form Acetyl
Co-A Synthetase, which is dissolved in ACS enzyme diluent, and Coenzyme powder,
which is dissolve in deionized water.
Features:
1.
Components as supplied are stable for at least 9 months when shipped from
Unitech.
2.
Reconstituted Coenzyme Solution and Acetyl Co-A Synthetase Solutions have
extended shelf life. Both are stable for 3 months following dissolution.
3.
The Flex CalculatorTM, which automatically calculates acetic
acid content in G/L based on the acetic acid ΔABS and extinction coefficient
equations. The user simply enters A0,A1, and A2
values into the Flex CalculatorTM spreadsheet. The Calculator
assists in estimating free acetic acid by providing a plot to facilitate the
extrapolation of A2 absorbance values at the time of ACS enzyme
addition.
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You can download a copy of the
Flex CalculatorTM spreadsheet
here.
(Please wait while it
downloads and opens your Excel program.)
You must have
Excel 5 or later to use this calculator.
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