International Journal of Environment and Bioenergy
ISSN: 2165-8951 (online)Search Article(s) by:
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Current Issue: Vol. 9 No. 3or Keyword in Title:
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Table of Content for Vol. 9 No. 3, 2014

Impact of Sugar Mill Effluent on Photosynthetic Pigment Content and Biochemical Constituents Variance of Cluster Bean (Cyamopsis tetragonaloba (L) Taub)
Kaliyamoorthy Jayakumar, Rajesh. M and T.M. Sathees Kannan
 PP. 143 - 160
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ABSTRACT: The present study was carried to find out the impact of sugar mill effluent on photosynthetic pigment content and biochemical constituents variance of Cluster Bean (Cyamopsis tetragonaloba (L) Taub). All the photosynthetic Pigment content; such as chlorophyll-a, chlorophyll-b, total chlorophyll, carotenoid content and biochemical constituents, such as, starch, amino acid, protein, reducing and non-reducing sugar content were increased at 10 % sugar mill effluent concentration of cluster bean plants. The above parameters were decreased at higher (25, 50, 75 and 100 %.) concentrations of sugar mill effluents.

Nitrogen and Phosphorus Resorption Efficiency in Some Native Tropical Trees Planted on a Mine Spoil in Singrauli Coalfields, India
Arvind Singh
 PP. 161 - 170
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ABSTRACT: A study was conducted to explore the nitrogen and phosphorus resorption efficiencies in eight native tropical trees planted on a mine spoil. Of the eight investigated species Acacia catechu, Albizia lebbeck, Dalbergia sissoo and Pongamia pinnata were represented by leguminous tree species while Azadirachta indica, Gmelina arborea, Tectona grandis and Terminalia bellerica were represented by non-leguminous tree species. All the tree species have shown higher nitrogen and phosphorus resorption efficiencies on nitrogen and phosphorus deficient mine spoil. Non-leguminous species had shown greater efficiency for nitrogen resorption than the leguminous species. However, no such trend emerged for phosphorus resorption efficiency between both groups of plants.

Biomass Energy
Askari Mohammad Bagher
 PP. 171 - 195
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ABSTRACT: To many people, the most familiar forms of renewable energy are the wind and the sun. But biomass (plant material and animal waste) is the oldest source of renewable energy, used since our ancestors learned the secret of fire. Until recently, biomass supplied far more renewable electricity or “biopower” than wind and solar power combined (Washington, 2008). If developed properly, biomass can and should supply increasing amounts of biopower. In fact, in numerous analyses of how many countries can transition to a clean energy future, sustainable biomass is a critical renewable resource (Rachel, 2009a). Biomass is a renewable energy source not only because the energy it comes from the sun, but also because biomass can re-grow over a relatively short period of time. Through the process of photosynthesis, chlorophyll in plants captures the sun"s energy by converting carbon dioxide from the air and water from the ground into carbohydrates complex compounds composed of carbon, hydrogen, and oxygen.

Effect of Ethyl Methanesulfonate on Fatty Acid Characteristic of Nannochloropsis sp.
Dina Augustine, Mujizat Kawaroe, Agus Oman Sudrajat
 PP. 196 - 204
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ABSTRACT: The ability of microalgae to grow in short time with huge biomass production has become the reference point to produce biofuel in short time as well. Until now, it still needs microalgae species that is capable of producing numerous biomass and high levels of fatty acid so it is able to supply basic needs for biofuel. One of the method used to increase microalgae biomass is mutagenesis. Mutagenesis method here is conducted by adding certain compounds called Ethyl Methanesulfonate (EMS) to microalgae cell. The results of this study showed that the highest biomass was obtained from Nannochloropsis sp. cultivation with 0.1 M EMS concentration in two different phases (1.08 ± 0.33 and 1.11 ± 0.07 gr/L). Gas chromatography identification has detected the presence of 22 compounds of saturated fatty acid and 3 compounds of unsaturated fatty acid. Three compounds of unsaturated fatty acid detected were C18:2 cis-9 (methyl oleate), C16:1 (methyl palmitoleate) and C18:2 (methyl linoleic). The highest percent area/concentration of saturated and unsaturated fatty acid respectively is C16:0 (methyl palmitate) as much as 67.70±0.05 at stationary phase and C16:1 (methyl palmitoleate) as much as 17.59±0.42 at death phase. From the results, it can be implied that EMS input in microalgae cultivation can increase the percentage of certain fatty acids that potentially produce to be biodiesel.