scholarly journals Biomass Yield, Chemical Composition and Potential Ethanol Yields of 8 Cultivars of Napiergrass (<i>Pennisetum purpureum</i> Schumach.) Harvested 3-Monthly in Central Thailand

2013 ◽  
Vol 03 (02) ◽  
pp. 107-112 ◽  
Author(s):  
Kannika Rengsirikul ◽  
Yasuyuki Ishii ◽  
Kunn Kangvansaichol ◽  
Prapa Sripichitt ◽  
Vittaya Punsuvon ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Biomass Yield ◽  
Pennisetum Purpureum ◽  
Ethanol Yields ◽  
Central Thailand

Effects of inter-cutting interval on biomass yield, growth components and chemical composition of napiergrass (Pennisetum purpureum Schumach) cultivars as bioenergy crops in Thailand

2011 ◽  
Vol 57 (3) ◽  
pp. 135-141 ◽  
Author(s):  
Kannika Rengsirikul ◽  
Yasuyuki Ishii ◽  
Kunn Kangvansaichol ◽  
Pichit Pripanapong ◽  
Prapa Sripichitt ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Biomass Yield ◽  
Pennisetum Purpureum ◽  
Bioenergy Crops ◽  
Cutting Interval

scholarly journals Production potential and chemical composition of elephant grass (Pennisetum purpureum Schum.) at different ages for energy purposes

2017 ◽  
Vol 16 (25) ◽  
pp. 1428-1433 ◽  
Author(s):  
Kesia Faria Vidal Ana ◽  
da Costa Barbe Tatiane ◽  
Figueiredo Daher Rogerio ◽  
Eustáquio Almeida Filho Janeo ◽  
Samara Nunes de Lima Roberta ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Production Potential ◽  
Different Ages ◽  
Pennisetum Purpureum Schum

scholarly journals Latitudinal, seasonal and depth-dependent variation in growth, chemical composition and biofouling of cultivated Saccharina latissima (Phaeophyceae) along the Norwegian coast

2020 ◽  
Vol 32 (4) ◽  
pp. 2215-2232 ◽  
Author(s):  
Silje Forbord ◽  
Sanna Matsson ◽  
Guri E. Brodahl ◽  
Bodil A. Bluhm ◽  
Ole Jacob Broch ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Latitudinal Gradient ◽  
Biomass Yield ◽  
Saccharina Latissima ◽  
Seaweed Farming ◽  
Membranipora Membranacea ◽  
Salinity Levels ◽  
Biomass Yields ◽  
Tissue Nitrogen ◽  
Frond Length

Abstract The Norwegian coastline covers more than 10° in latitude and provides a range in abiotic and biotic conditions for seaweed farming. In this study, we compared the effects of cultivation depth and season on the increase in biomass (frond length and biomass yield), chemical composition (protein, tissue nitrogen, intracellular nitrate and ash content) and biofouling (total cover and species composition) of cultivated Saccharina latissima at nine locations along a latitudinal gradient from 58 to 69° N. The effects of light and temperature on frond length and biofouling were evaluated along with their relevance for selecting optimal cultivation sites. Growth was greater at 1–2 m than at 8–9 m depth and showed large differences among locations, mainly in relation to local salinity levels. Maximum frond lengths varied between 15 and 100 cm, and maximum biomass yields between 0.2 and 14 kg m−2. Timing of maximum frond length and biomass yield varied with latitude, peaking 5 and 8 weeks later in the northern location (69° N) than in the central (63° N) and southern (58° N) locations, respectively. The nitrogen-to-protein conversion factor (averaged across all locations and depths) was 3.8, while protein content varied from 22 to 109 mg g−1 DW, with seasonality and latitude having the largest effect. The onset of biofouling also followed a latitudinal pattern, with a delayed onset in northern locations and at freshwater-influenced sites. The dominant epibiont was the bryozoan Membranipora membranacea. Our results demonstrate the feasibility of S. latissima cultivation along a wide latitudinal gradient in North Atlantic waters and underscore the importance of careful site selection for seaweed aquaculture.

scholarly journals Nutritional value, fermentation losses and aerobic stability of elephant grass (Pennisetum purpureum Schum.) silage treated with exogenous fibrolytic enzymes

2020 ◽  
Vol 42 ◽  
pp. e48272
Author(s):  
Maikon Figueredo Lemos ◽  
Alexandro Pereira Andrade ◽  
Pedro Henrique Ferreira da Silva ◽  
Camila Oliveira Santos ◽  
Caio Felipe Barros Souza ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Dry Matter ◽  
Nutritional Value ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
Fibrolytic Enzymes ◽  
Grass Silage ◽  
Aerobic Stability ◽  
Pennisetum Purpureum Schum

The aim of this study was to evaluate nutritional value, fermentation losses, and aerobic stability of elephant grass silage (Pennisetum purpureum Schum.) treated with exogenous fibrolytic enzymes. The experiment was conducted in a completely randomized design with four replicates (experimental silos) and five levels of fibrolytic enzymes (0, 1.5, 3.0, 4.5 and 6.0%). For this, the elephant grass was ensiled at 70 days of age in plastic buckets with 20L capacity. Silos were opened 60 days after sealing. Analyses were made for chemical composition, in vitro dry matter digestibility (IVDMD), effluent losses (EL), gas losses (GL) and dry matter recovery (DMR), as well as the aerobic stability of the silage. Data were analyzed with PROC REG of SAS® University, at 5% probability. There was an increase in IVDMD content (p < 0.0001) and reduction in NDF and ADF contents (p < 0.0001) according to enzyme levels. These results were related to the increase in the degradation of fiber fractions. There were higher EL (p = 0.0062) as a function of enzyme levels and aerobic deterioration after silo opening, at all levels tested. Thus, it can be concluded that the exogenous fibrolytic enzymes change the chemical composition of elephant grass silage, and increase its digestibility and nutritional value. Moreover, when used alone as an additive, fibrolytic enzymes are not able to recover all dry matter of this silage (with effluent and gas losses), and are not able to maintain aerobic stability in the first hours after opening the silos.

Biomass Yield, Chemical Composition and In Vitro Gas Production of Different Dhaincha (Sesbania spp.) Accessions from Bangladesh

2018 ◽  
Vol 35 (4) ◽  
pp. 397
Author(s):  
A.K.M. Ahsan Kabir ◽  
M. Moniruzzaman ◽  
Z. Gulshan ◽  
A.B.M. Mustanur Rahman ◽  
A.K.M Golam Sarwar
Keyword(s):  
Chemical Composition ◽  
Biomass Yield ◽  
Gas Production ◽  
In Vitro Gas Production ◽  
Sesbania Spp

scholarly journals Silage Quality and Preference of Elephant grass (Pennisetum purpureum) with Varying Levels of Poultry dropping and Cassava Peel by West African Dwarf Goats

2019 ◽  
pp. 537-548 ◽  
Author(s):  
Binuomote R. T. ◽  
Bamigboye F. O. ◽  
Amuda A.J. ◽  
Ayebogan G. M.
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Dry Matter ◽  
West African ◽  
Pennisetum Purpureum ◽  
Elephant Grass ◽  
West African Dwarf ◽  
Grass Silage ◽  
Light Green ◽  
Cassava Peel

In this study, elephant grass ((Pennisetum purpureum) was ensiled with varying levels of poultry dropping and cassava peel (CSP). Silage characteristics and chemical composition of the silage mixtures were determined in the laboratory while preferences of West African Dwarf (WAD) goats for the mixtures were assessed using eighteen (18) WAD goats. The treatments were: T1: P. purpureum (60%), poultry dropping (40%), dry cassava peel (0%); T2: P. purpureum (60%), poultry dropping (30%), dry cassava peel (10%); T3: P. pupureum (60%), poultry dropping (20%), dry cassava peel (20%); T4: P. purpureum (60%), poultry dropping (10%), dry cassava peel (30%); T5: P. purpureum (60%), poultry dropping (0%), dry cassava peel (40%) and T6: P. purpureum (100%). All the mixtures formed good silage, except the silage with the highest proportion of poultry dropping (T1) and acidity (pH) ranged from 6.75 to 3.80 (T1 and T5 respectively) while colour varied from pale to light green with dark brown and white speckles as proportion of cassava peel in the silage mixture increased. All silages had firm texture with pleasant and slightly alcoholic smell. Dry matter (DM) content of silage increased as proportion of cassava peel in the mixture increased while crude protein (CP) and (NDF) reduced. DM, CP and CF varied from 27.00 to 54.00%, 8.46 to 10.72% and 28.52 to 60.52 %, respectively. The preference by goats was 11.22, 20.44, 20.71, 21.78, 22.56 and 32.28% for T5, T4, T6, T3, T2 and T1 respectively. These results revealed that the silage properties, chemical composition and acceptability of elephant grass silage by WAD goat were enhanced by the addition of cassava peel and poultry dropping to elephant grass

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