Water-Soluble Carbohydrate Extraction from Sweet Pearl Millet and Sweet Sorghum Biomass as Affected by Bagasse Impregnation

2017 ◽  
Vol 60 (2) ◽  
pp. 253-261 ◽  
Keyword(s):  
Pearl Millet ◽  
Sweet Sorghum ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Sweet Pearl Millet ◽  
Water Soluble Carbohydrate

Optimization of Water-Soluble Carbohydrate Extraction from Sweet Sorghum and Sweet Pearl Millet Biomass

2020 ◽  
Vol 13 (1) ◽  
pp. 237-248 ◽  
Author(s):  
Noura Saïed ◽  
Mohamed Khelifi ◽  
Annick Bertrand ◽  
Mohammed Aider ◽  
Gaëtan F. Tremblay
Keyword(s):  
Pearl Millet ◽  
Sweet Sorghum ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Sweet Pearl Millet ◽  
Water Soluble Carbohydrate

scholarly journals Forage yield, nutritive value, and ensilability of sweet pearl millet and sweet sorghum in five Canadian ecozones

2019 ◽  
Vol 99 (5) ◽  
pp. 701-714
Author(s):  
Hugo Alix ◽  
Gaëtan F. Tremblay ◽  
Martin H. Chantigny ◽  
Gilles Bélanger ◽  
Philippe Seguin ◽  
...  
Keyword(s):  
Pearl Millet ◽  
Sweet Sorghum ◽  
Volatile Fatty Acids ◽  
Nutritive Value ◽  
Pennisetum Glaucum ◽  
Water Soluble ◽  
Forage Yield ◽  
Soluble Carbohydrate ◽  
Sweet Pearl Millet ◽  
The Pacific

Sweet pearl millet [Pennisetum glaucum (L.) R. Br.] and sweet sorghum [Sorghum bicolor (L.) Moench], previously tested for ethanol production, were evaluated as high sugar crops for animal feeds to possibly replace silage corn (Zea mays L.). We compared the forage yield, nutritive value, and ensilability of one hybrid of sweet pearl millet and two of sweet sorghum to a locally adapted silage corn hybrid in five Canadian ecozones. Forage yields of sweet pearl millet and sorghum were similar to that of silage corn in the Boreal Shield, Mixedwood Plain, and Atlantic Maritime ecozones, greater in the Prairies, and lower in the Pacific Maritime ecozone. Across sites, forage dry matter concentration was less for sweet pearl millet (289 g kg−1) and sweet sorghum (245 g kg−1) than for silage corn (331 g kg−1). Sweet pearl millet had a lower total digestible nutrient (TDN) concentration (452 g kg−1 DM) and aNDF digestibility (NDFd) than sweet sorghum and silage corn along with greater neutral detergent fibre (aNDF) and water-soluble carbohydrate (WSC) concentrations than silage corn. Sweet sorghum had greater aNDF and WSC, lower starch, and similar TDN (534 g kg−1 DM) concentrations, but greater NDFd compared with silage corn. Sweet pearl millet and sorghum fermented as well as silage corn, reaching low pH values and acceptable concentrations of lactic and volatile fatty acids. Sweet sorghum is therefore a viable alternative to silage corn in Canada except in the Pacific Maritime ecozone, but early-maturing hybrids with acceptable DM concentration at harvest are required.

Effects of row spacing and plant population on sweet sorghum yield

1984 ◽  
Vol 24 (126) ◽  
pp. 386 ◽  
Author(s):  
PM Martin ◽  
FM Kelleher
Keyword(s):  
Sweet Sorghum ◽  
Dry Matter ◽  
Plant Population ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Row Spacing ◽  
Photosynthetic Productivity ◽  
South Wales ◽  
Narrow Row ◽  
Water Soluble Carbohydrate

Sweet sorghum (Sorghum bicolor) was grown in an irrigated field trial at Richmond, New South Wales, to determine the effects of row spacing (30, 75, and 105 cm) and plant population (8 and 16 plants/m2) on yields of water soluble carbohydrate (WSC) and dry matter. For both plant populations, narrow row spacing resulted in significantly greater dry matter and WSC yield, especially at seed maturity. Total dry matter and WSC yield also increased with increased plant population from 8 to 16 plants/m2. Much of the WSC yield advantage of reduced row spacing was attributed to greater photosynthetic productivity before anthesis, which resulted in higher WSC yield at anthesis and the production of taller, thicker stems, the volume of which was closely related to post-anthesis WSC accumulation

Ensilability and Nutritive Value of Sweet Sorghum and Sweet Pearl Millet Bagasse as Affected by Different Methods of Carbohydrate Extraction for Eventual Ethanol Production

2021 ◽  
Vol 64 (2) ◽  
pp. 401-411
Author(s):  
Noura Saïed ◽  
Mohamed Khelifi ◽  
Annick Bertrand ◽  
Gaëtan F. Tremblay ◽  
Mohammed Aider
Keyword(s):  
Pearl Millet ◽  
Sweet Sorghum ◽  
Nutritive Value ◽  
Water Soluble ◽  
Neutral Detergent Fiber ◽  
Soluble Carbohydrates ◽  
List Type ◽  
Sweet Pearl Millet ◽  
Juice Extraction

HighlightsJuice extraction resulted in a decrease in the nutritive value of the bagasse as compared with the initial biomass.Silages made from the second pressing bagasse were well conserved.Sweet sorghum silage has a better nutritive value than sweet pearl millet.Abstract. Pressing the biomass of sweet sorghum and sweet pearl millet in-field is one of the suggested options for bioethanol production. The extracted juice can be delivered to an ethanol plant, and the bagasse (pressing residue) can be used for ruminant feeding. Efficient carbohydrate extraction is highly important for good ethanol yield. However, enough carbohydrates must remain in the bagasse for its adequate conservation as silage. In this study, the ensilability and the chemical composition of the second pressing bagasse of sweet sorghum and sweet pearl millet were investigated. The bagasse was obtained following a second pressing of the first pressing bagasse after its impregnation with water based on three water:bagasse ratios (0.5, 1, and 1.5). Results indicated that water:bagasse ratio did not affect water-soluble carbohydrate (WSC) extraction for both crops. The second pressing bagasse of sweet sorghum and sweet pearl millet contained 80.5 ±4.6 and 60 ±4.6 g of WSC kg-1 dry matter (DM), respectively. The second pressing bagasse of both crops had reduced nutritive value compared to the initial biomass, i.e., higher neutral detergent fiber (NDF) and acid detergent fiber (ADF) concentrations along with lower non-structural carbohydrate (NSC) concentration, in vitro true digestibility of DM (IVTD), and in vitro NDF digestibility (NDFd). The second pressing bagasses of both crops also showed good ensilability, but sweet sorghum bagasse silages were of better nutritive value than sweet pearl millet bagasse silages (ADF = 446.2 ±3.7 vs. 463.2 ±3.7 g kg-1 DM, IVTD = 813.8 ±3.4 vs. 708.8 ±6.8 g kg-1 DM, and NDFd = 741.8 ±4.8 vs. 596.2 ±8.5 g kg-1 NDF, respectively). The water:bagasse ratio used for bagasse impregnation before the second pressing only affected the NDF concentration of silages, as a higher NDF concentration was obtained with a water:bagasse ratio of 1.5. Sweet sorghum and sweet pearl millet can be considered dual-purpose crops; the extracted juice can be fermented into ethanol, and the second pressing bagasse can be used to make good-quality silage. Keywords: Bagasse impregnation, Nutritive value, Silage, Sweet pearl millet, Sweet sorghum, Water-soluble carbohydrates.

Characterisation of the WSC fraction of six species of temperate pasture grass

2004 ◽  
Vol 32 ◽  
pp. 247-248
Author(s):  
J. C. Ince ◽  
A. C. Longland ◽  
A. J. Cairns ◽  
M. Moore–Colyer
Keyword(s):  
Perennial Ryegrass ◽  
Water Soluble ◽  
Italian Ryegrass ◽  
Soluble Carbohydrate ◽  
Meadow Fescue ◽  
Pasture Grass ◽  
Pasture Grasses ◽  
Optimal Health ◽  
Water Soluble Carbohydrate ◽  
Field Plots

The carbohydrate (CHO) fraction of pasture grasses is a major source of energy for many domestic herbivores. However, the amounts, and types, of the water–soluble carbohydrate (WSC) fraction (i.e. glucose, fructose, sucrose, and polymers of sucrose and fructose, the fructans) present in such grasses, varies with species and environmental conditions. As the WSC constitute a highly digestible, energy yielding fraction of grasses, it is important to be able to measure their levels in a sward so that the diets of pastured animals may be designed to elicit optimal health and productivity. The aim of this study was to characterise the WSC profile of six UK pasture grasses, and to develop a technique for extracting the fructan portion of the WSC.Six species of UK pasture grasses [Cocksfoot (C), Timothy (T), Meadow Fescue (M), Italian Ryegrass (IR), Perennial Ryegrass (PR) and Hybrid Ryegrass (HR)] were grown in experimental field plots at IGER.

scholarly journals The effect of drying and ensiling grass on its digestion in sheep

1971 ◽  
Vol 26 (2) ◽  
pp. 123-134 ◽  
Author(s):  
D. E. Beever ◽  
D. J. Thomson ◽  
E. Pfeffer ◽  
D. G. Armstrong
Keyword(s):  
Small Intestine ◽  
Digestive Tract ◽  
Terminal Ileum ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Proximal Duodenum ◽  
Fresh Frozen ◽  
Gross Energy ◽  
Water Soluble Carbohydrate

1. The effect of drying and ensiling ryegrass on the site of digestion of the energy andcarbohydrate fractions was studied in sheep fitted with rumen cannulas and re-entrant can-nulas in the proximal duodenum and terminal ileum.2. The sheep were given fresh (frozen) grass, dried grass, wilted and unwilted silage pre-pared from herbage harvested from the same sward. The grass diets were offered twice dailyto each animal and paper impregnated with chromium sesquioxide was administered twicedaily into the rumen. Twenty-four hour collections of duodenal and ileal digesta, adjusted togive 100 yo recovery of Cr2O3, were analysed to determine the extent of digestion in the fore-stomachs, the small intestine and the caecum and colon.3. Total digestibility of the gross energy was similar for the fresh grass, dried grass andwilted silage diets (67·4,68·1 and67·5 %)but higher for the unwilted silage (72·0 %, P < 0·01).There was an increased flow of energy into the small intestine when the sheep were given driedgrass and unwilted silage. The proportion of the apparently digested energy lost within thesmall intestine was greater when the dried grass was given (302 yo) than when the fresh grasswas given (23·6 yo).4. Drying or ensiling of wilted material affected digestion neither in the entire alimentarytract nor in the different sections of the tract, of some carbohydrate fractions. About 97 yo ofthe digested water-soluble carbohydrate, over 90 yo of the digested cellulose and over 70 yo ofthe digested hemicellulose were digested before reaching the small intestine. The increasedamount of energy entering the duodenum of the sheep given the dried grass was notaccounted for by changes in the fate of these carbohydrate fractions in the digestive tract. Withunwilted silage, digestibilities of the cellulose and hemicellulose fractions were higher, andlower proportions of the digested carbohydrates were lost before the small intestine.

Methane emissions differ between sheep offered a conventional diploid, a high-sugar diploid or a tetraploid perennial ryegrass cultivar at two allowances at three times of the year

2018 ◽  
Vol 58 (6) ◽  
pp. 1043 ◽  
Author(s):  
A. Jonker ◽  
G. Molano ◽  
E. Sandoval ◽  
P. S. Taylor ◽  
C. Antwi ◽  
...  
Keyword(s):  
Perennial Ryegrass ◽  
Dry Matter ◽  
Early Spring ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Ch4 Emissions ◽  
High Sugar ◽  
Elevated Water ◽  
Water Soluble Carbohydrate ◽  
Male Sheep

Elevated water-soluble carbohydrate (WSC) concentration in the diet may affect rumen fermentation and consequently reduce methane (CH4) emissions. The objective of the present study was to determine CH4 emissions from male sheep (8 per treatment) in respiration chambers for 48 h and fed either a conventional diploid (CRG), a high-sugar diploid (HSG) or a tetraploid (TRG) perennial ryegrass cultivar, each offered at 0.7 or 1.0 kg dry matter (DM)/day during periods in early spring 2013 (P1), early autumn 2014 (P2) and late spring 2014 (P3). There was a significant (P < 0.001) interaction between cultivar and period for CH4 yield (g/kg DM intake). In P1 yield was 9% lower (P = 0.007) for sheep fed HSG than for sheep fed CRG or TRG, in P2 yield was 16% lower (P < 0.001) for sheep fed TRG than that for sheep fed CRG or HSG, and in P3 yield was 15% lower (P < 0.001) for sheep fed TRG than that for sheep fed CRG, with HSG-fed sheep being intermediate and not significantly different from either CRG or TRG. Despite there being a cultivar × period interaction, overall, CH4 yield was lower for sheep fed HSG or TRG than for sheep fed CRG (P < 0.001). There were no cultivar × level of feed offer interactions and, overall, yield of CH4 was 9% higher (P = 0.003) for sheep offered 0.7 than for sheep offered 1.0 kg DM/day. In each period, one or other of the high-WSC diploid (HSG) or tetraploid cultivars (TRG) gave lower CH4 yields than did the control diploid (CRG), suggesting that CH4 yield is reduced by characteristics of these cultivars. However, the effect was not consistently associated with either cultivar and could not be attributed to higher forage water-soluble carbohydrate concentrations.

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