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D. SULLIVAN, Covance Laboratories, 3301 Kinsman Blvd., Madison, WI 53704 Low carbohydrate diets have become very widespread in the United States during the last few years. Consumers that have adapted this lifestyle are demanding products that are low in glycemic carbohydrates. As food and supplement companies have begun to produce these products, a need has developed for accurate analysis of glycemic, net or available carbohydrates. Traditional methods for the analysis of carbohydrates involved calculating the total carbs by subtracting the sum of the protein, moisture, ash, and fat from 100. This calculation frequently picked up non-carbohydrate compounds, and additional assays were required to measure these materials and subtract them from the total carb result. A new method has been developed that can measure the glycemic carbohydrates through a “direct” analysis. Using this method, the analyst can quantify the total mono and di-saccarides as well as the dextrins and starches. This assay has been used successfully on a variety of different foods and dietary supplements. Details of the procedure will be presented along with precision, accuracy, ruggedness, and specificity data.
Session 13, Regulatory and analytical challenges for low-carbohydrate foods
2005 IFT Annual Meeting, July 15-20 - New Orleans, Louisiana |