RFA and AFIA publish recommended DDG/s test methods
The Renewable Fuels Association (RFA) and American Feed Industry Association (AFIA) have published recommendations on analytical test methods for the testing of corn distillers dried grains (DDG) and corn DDG with solubles (DDGS) in the Journal of AOAC International.
The recommendations can be found in Volume 92, Number 1, 2009, of the journal.
Corn distillers dried grains (DDG) and corn DDG with solubles (DDGS) are co-products of fuel and beverage ethanol distilleries.
They are the second-largest processed feed ingredient in the United States. The absence of industry guidelines and recommendations on analytical test methods for the testing of DDGS has led to a high level of confusion related to analysis and subsequent interpretation of data for moisture, protein, fat, and fibre, all of which are critical feed qualities and trade parameters.
A number of analytical methods for constituents commonly measured in distillers dried grains (DDG) are practiced in laboratories serving the agricultural sector. A large inter-laboratory variability among results has been observed in the industry. Methods for moisture, crude fat, and crude fibre are empirical, thus part of this variability can be attributed to the use of different methods of analysis.
A study was organised and supported by the American Feed Industry Association, the Renewable Fuels Association, and the National Corn Grain Association to evaluate the efficacy, applicability, and the inter-laboratory variation of a number of methods for moisture, crude protein, crude fat, and crude fibre in DDG with solubles (DDGS).
A second study was undertaken to
assess existing inter-laboratory variation of the same methods in 23 laboratories. Based on the results of these studies, the sponsoring associations established recommended reference methods for use in commercial trade of DDGS.
The recommendations are based on inter-laboratory studies in which Denmark-based analytical solutions provider Foss was involved, participating in the trials and supplying analytical solutions.
The recommendations are based on inter-laboratory studies in which Denmark-based analytical solutions provider Foss was involved, participating in the trials and supplying analytical solutions.
A number of the company’s solutions are stated as recommended methods: Protein (crude) in Animal Feed Combustion according to AOAC 990.03 – Foss Kjeltec 8000 series; Protein (crude) in Animal Feed and Pet Food (Copper Catalyst) according to AOAC 2001.11 – Foss Kjeltec 8000 series; Oil in Cereal Adjuncts (petroleum ether) according to AOAC 945.16 -Foss Soxtec; Fibre (crude) in Animal Feed and Pet Food (F.G. Crucible) according to AOAC 978.10 – Foss – Fibertec.
The recommendations can be found in Volume 92, Number 1, 2009, of the journal.
Corn distillers dried grains (DDG) and corn DDG with solubles (DDGS) are co-products of fuel and beverage ethanol distilleries.
They are the second-largest processed feed ingredient in the United States. The absence of industry guidelines and recommendations on analytical test methods for the testing of DDGS has led to a high level of confusion related to analysis and subsequent interpretation of data for moisture, protein, fat, and fibre, all of which are critical feed qualities and trade parameters.
A number of analytical methods for constituents commonly measured in distillers dried grains (DDG) are practiced in laboratories serving the agricultural sector. A large inter-laboratory variability among results has been observed in the industry. Methods for moisture, crude fat, and crude fibre are empirical, thus part of this variability can be attributed to the use of different methods of analysis.
A study was organised and supported by the American Feed Industry Association, the Renewable Fuels Association, and the National Corn Grain Association to evaluate the efficacy, applicability, and the inter-laboratory variation of a number of methods for moisture, crude protein, crude fat, and crude fibre in DDG with solubles (DDGS).
A second study was undertaken to
assess existing inter-laboratory variation of the same methods in 23 laboratories. Based on the results of these studies, the sponsoring associations established recommended reference methods for use in commercial trade of DDGS.
The recommendations are based on inter-laboratory studies in which Denmark-based analytical solutions provider Foss was involved, participating in the trials and supplying analytical solutions.
The recommendations are based on inter-laboratory studies in which Denmark-based analytical solutions provider Foss was involved, participating in the trials and supplying analytical solutions.
A number of the company’s solutions are stated as recommended methods: Protein (crude) in Animal Feed Combustion according to AOAC 990.03 – Foss Kjeltec 8000 series; Protein (crude) in Animal Feed and Pet Food (Copper Catalyst) according to AOAC 2001.11 – Foss Kjeltec 8000 series; Oil in Cereal Adjuncts (petroleum ether) according to AOAC 945.16 -Foss Soxtec; Fibre (crude) in Animal Feed and Pet Food (F.G. Crucible) according to AOAC 978.10 – Foss – Fibertec.
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