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News #1: Chondroitin
News #2: Glucosamine
News #3: L-Carnitine
News #4: Chondroitin & Glucosamine in Pet Food
analytical lab new5 News #5: Single Lab Validation
analytical lab news6 News #6: Identification and Quantification of Oversulfated Chondroitins
Member of AOAC method Committee for Dietary Supplement
Active participant in Dietary Supplement Task Force
Official contractor for NIH through BPA program (Blanket Purchase Agreement)
Completed Single Lab Validation of Enzymatic-HPLC Method for Chondroitin Sulfate Assay funded by NIH, and the paper is going to be published on Journal of AOAC
Developed Pre-Column Derivatization Method for Glucosamine Assay funded by NIH, and the paper have been published on Journal of AOAC
Test Naturally Existing Chondroitin Sulfate and Glucosamine in Pet Foods and Animal Feeds

Based on current clinical research, it has been proven that chondroitin sulfate and glucosamine are benefitial to human and animal joint tissue. Both chondroitin sulfate and glucosamine have become important nutrition compositions in pet foods and animal feeds. Certain raw materials in pet foods and animal feeds, such as animal cartilage, bone and trachea, contain chondroitin sulfate in a bound form (attached to protein and some other substances), and glucosamine, from shrimp and crab shells, in varying percentages. Other raw materials might also contain bound chondroitin sulfate and glucosamine.

Analytical Laboratories in Anaheim, Inc. has developed method utilizing special pre-digestion procedures to release the free chondroitin sulfate and glucosamine from their bound form. The free chondroitin sulfate can be quantitated by enzymatic-HPLC method, a specific and sensitive method for chondroitin sulfate. Free glucosamine is tested by a pre-column derivatization method. Any pre-existing free chondroitin sulfate and glucosamine (usually is spiked to the finished products) will be included in the final result. The detection limit for chondroitin sulfate is <0.02%; for glucosamine is <0.01%.

Analytical Laboratories in Anaheim, Inc. is able to test total (bound & free) chondroitin sulfate and glucosamine in any form of pet food and animal feed (such as canned food, dry form, biscuit, etc.), as well as R & D products and raw materials. It would also be our pleasure to offer free consulting for your research and development. Please contact: David Ji at (714) 524-9988, or david@analytical-lab.com for questions and further information.

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FDA registered Analytical Laboratories in Anaheim