DYNAMIC HEADSPACE ANALYSIS OF ACCELERATED STORAGE COMMERCIAL WHEY-PROTEIN CONCENTRATE USING 4 DIFFERENT ADSORBENT TRAPS

Dynamic headspace analysis (DHA)/GC/MS was used to recover and identif y some 33 volatile compounds from commercial whey protein concentrate (WPC) subjected to accelerated storage. Four adsorbent traps, i.e., Te nax TA, Tekmar No. 8, and Vocarb 3000 and 4000, were evaluated for the ir ability to recover volatile compounds from commercial whey protein concentrate after 8 d of accelerated storage in the dark at 55 degrees C. Tenax TA was most effective for recovering esters, aliphatic hydro carbons, and aromatic hydrocarbons, and Vocarb 3000 was most effective for recovering alcohols, ketones, and furans.