Nutrient database for distiller's dried grains with solubles produced from new ethanol plants in Minnesota and South Dakota

Abstract

A study was conducted to evaluate the nutrient content and variability of distiller's dried grains with solubles (DDGS) originating from new (less than 5 yr old) ethanol plants in Minnesota and South Dakota. Ten plants (8 MN, 2 SD) participated in the study, submitting a total of 118 samples. Samples were collected every 2 mo from ten ethanol plants in the Minnesota-South Dakota (MNSD) region from 1997 to 1999 and were analyzed for amino acid levels, DM, CP, crude fiber, crude fat, ash, ADF, NDF, Ca, P, K, Mg, S, Na, Zn, Mn, Cu, and Fe analysis. Digestible energy (DE), ME, and NFE levels were also calculated. Means (dry-matter basis) and coefficients of variation for each nutrient among all plants during 1997 to 1999 were DM (88.9%, 1.7%), CP (30.2%, 6.4%), crude fat (10.9%, 7.8%), crude fiber (8.8%, 8.7%), ash (5.8%, 14.7%), NFE (45.5%, 6.1%), ADF (16.2%, 28.4%), NDF (42.1%, 14.3%), calculated DE (3,990 kcal/kg, 3.24%), calculated ME (3,749 kcal/kg, 3.28%), Arg (1.20%, 9.1%), His (0.76%, 7.8%), Ile (1.12%, 8.7%), Leu (3.55%, 6.4%), Lys (0.85%, 17.3%), Met (0.55%, 13.6%), Phe (1.47%, 6.6%), Thr (1.13%, 6.4%), Trp (0.25%, 6.7%), Val (1.50%, 7.2%), Ca (0.06%, 57.2%), and P (0.89%, 11.7%), respectively. Among the amino acids analyzed, Lys was the most variable (CV = 17.3%), followed by Met (CV = 13.6%). Nutrient levels of MNSD DDGS were higher in crude fat, NDF, DE, ME, P, Lys, Met, and Thr and lower for DM, ADF, and Ca than NRC (1998) values. Nutrient values differed between years for ash, DE, Mn, Zn, Cys (P < 0.10), Fat, TDN, ME, Met, Ile (P < 0.05), Ca, P, K, Mg, and Cu (P < 0.01). These results suggest that gross energy; P; and total Lys, Met, and Thr levels are higher in DDGS from MNSD ethanol plants compared to published values and chemical analysis values of a DDGS sample obtained from an older Midwestern plant.

By-product Originating from Artisan Distillers of Rice Alcohol in Northern Vietnam: Production, Use and Nutrient Value for Smallholder Pig Raising

“…Thus, the average values of calcium, phosphorus, copper, iron, manganese and zinc in RDP of present study are increased between 2 and 9 times in comparison with value of brown rice. The results of this study are in agreement with previous studies [4,5,6,21] who indicated that most mineral contents of DDGS are at least 3 times higher than those of the grain from which it originated. In the present study, average phosphorus content in the rice distiller's by-product samples analysed was within the range of published values in DDGS of previous reports [4,5,6,19,20,21].…”

“…The average ash content of RDP (5.15%) was within the range of values (2.2 to 8.5%) in RDP studied by [2]. In this study, NDF level in RDP was high and could provide an advantage in digestive energy and metabolisable energy [4]. When considering fibers, NDF and ADF contents in RDP were higher than that reported by previous work [2] and similar to NDF (34.6%) and ADF (16.3%) values in the DDGS [19].…”

“…Difference among chemical composition of RDP in the present study when compared to previous studies is probably ascribed, as for DDGS, by input materials, distillation equipment and production process [4,5].…”

“…During the process of alcohol production, approximately two thirds of grains is converted into alcohol and carbon dioxide, increasing thus 3-folds concentrations of unfermented remaining nutriments [4,20]. Thus, the average values of calcium, phosphorus, copper, iron, manganese and zinc in RDP of present study are increased between 2 and 9 times in comparison with value of brown rice.…”

“…In developed countries, dried distillers grains with solubles (DDGS) -a cereal byproduct from ethanol production plants -are used as animal feed [1,4,5,6]. They contain high levels of crude protein (27.15%), phosphorus (0.76%) and other nutrients [5] while their price is about half to a quarter lower than that of soybean meal and fish meal respectively.…”