RAPID PEROXIDASE TESTING FOR
OAT "COOK" QUALITY
A second part of the shelf life and product stability
equation for cooked oat products is peroxidase. It is more difficult
to inactivate than lipase and trace residual activity is common.
Peroxidases can also renature and regenerate part of the original
enzyme activity under some conditions.
Numerous colorimetric reactions can be used to follow peroxidase
denaturation and renaturation during thermal processing. We selected
guaiacol as the preferred color generator for its stability and
excellent sensitivity without excessive reactivity. More sensitive
color reactions for peroxidase exist but they are difficult to use
effectively in processing areas because of the presence of oat and
other peroxidase positive dust. OAT-CHEK II can be correlated to lab
peroxidase tests if appropriate adjustments are made for
enzyme-active dusts in the processing plant environment.
Consequently OAT-CHEK II, like OAT-CHEK I, can be used to establish
in-house standards, to generate quality assurance data and for rapid
sample comparisons.
OAT-CHEK II was developed to allow in-plant testing of oxidative
rancidity. It does require a short extraction with distilled water
(not provided) prior to the actual color reaction. Tests take only a
few minutes and are easily run by production personnel without
laboratory support.
We think you and your production and quality assurance staffs will
be pleased with the ease and speed of OAT-CHEK II. The kit contains
enough materials for approximately 300 determinations and comes
complete (except for distilled water which must be purchased
locally) with extraction vials, transfer pipets,
funnels and filter papers, reaction vials, reagents, dropper
bottles, graduated cylinder, wash bottle, digital timer, associated
items, instructions and a carrying case*. The cost is $300.00 plus
shipping and handling making each determination less than a dollar.
A replacement reagent kit (also for 300 determinations) is $225.00
plus shipping and handling.
*The carrying case is not included in orders shipped
outside the United States because the added size and weight
increase the shipping costs dramatically; please purchase a tool
box or other suitable carrying case locally.
Here at last is a cost effective peroxidase test with a practical
production orientation. Call or fax your order for fast service and
technical support. Let OAT-CHEK II keep you on the competitive edge
of rapid "cook quality" testing technology.
See also OAT-CHEK
I for a quick test for lipase activity.
Contact us for additional information.
Consulting, new product research and
development, and food and feed microscopy services are
available through the laboratory at ALTECA
LTD.
To Contact Us:
LSB Products, a division of ALTECA Ltd.
731 McCall Road, Manhattan, KS 66502, U.S.A.
Tel: (785) 537-9773, Fax: (785) 537-1800
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When contacting us from outside the United
States, please provide your name, company name, complete address,
telephone number, fax number and e-mail address.
This page was last updated on 05/07/08
.
