Be Cautious When Using Loss on Drying Moisture Analysis for DDGS

Be Cautious with the Moisture Analysis Method
Be Cautious with the Moisture Analysis Method Use Use for Corn Distillers Dried Grain with Solubles

Moisture analysis methods need careful consideration as this study reveals.  14 standard gravimetric methods were used to quantify the variability of moisture content results in corn distillers dried grains with solubles.  The test results from each of these methods were compared with the Karl Fischer titration method and the percent deviation noted.  A halogen moisture analyzer was also used to measure moisture in three fuel ethanol plant samples.  The results were telling: Moisture content determined by the different LoD (loss on drying) methods were significantly different.  Interestingly, the percentage deviation decreased at lower drying temperatures, while drying time was also seen to have some impact.  To eliminate erroneous readings and conclusions, they study recommends caution when using LoD for moisture analysis of distillers dried grains with solubles.

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About Bob Sandor

Bob began working as a chemist in 1987 and remains a science geek to this day. After his PhD he worked on the bench in materials and inorganic chemistry for 10 years. He then took on a love for marketing and sales. He combined his passion for science and business and took entrepreneur general management positions in large corporations like Hoecsht Celanese now Sanofi Aventis, Bel-Art and Smiths Detection. There he learned what it would take to run a business and finally Tovatech was co-founded in 2006. Bob’s hobbies include playing, listening and composing music, skiing, working out, the internet and all things science. Read More