Potential of Microalgae Biomass for the Sustainable Production of Bio-commodities

Author(s):  
Giorgio Perin ◽  
Tomas Morosinotto

2015 ◽  
Vol 29 ◽  
pp. 24-31 ◽  
Author(s):  
Ok Kyung Lee ◽  
Dong Ho Seong ◽  
Choul Gyun Lee ◽  
Eun Yeol Lee


2015 ◽  
Vol 192 ◽  
pp. 97-104 ◽  
Author(s):  
Probir Das ◽  
Mahmoud Ibrahim Thaher ◽  
Mohammed Abdul Quadir Mohd Abdul Hakim ◽  
Hareb Mohammed S.J. Al-Jabri


Author(s):  
N. I. Chernova ◽  
S. V. Kiseleva ◽  
O. M. Larina ◽  
G. A. Sytchev

Algae biomass is considered as an alternative raw material for the production of biofuels. The search for new types of raw materials, including high-energy types of microalgae, remains relevant, since the share of motor fuels in the structure of the global fuel and energy balance remains consistently high (about 35%), and the price of oil is characterized by high volatility. The authors have considered the advantages of microalgae as sources of raw materials for fuel production. Biochemical and thermochemical conversion are proposed as technologies for their processing. This paper presents the results of the study of the pyrolysis of the biomass of clonal culture of blue-green microalgae / cyanobacteriumArthrospira platensis rsemsu 1/02-Pfrom the collection of the Research Laboratory of Renewable Energy Sources of the Lomonosov Moscow State University. An experiment to study the process of pyrolysis of microalgae biomass was carried out at the experimental facility of the Institute of High Temperatures RAS in pure nitrogen grade 6.0 to create an oxygen-free environment with a linear heating rate of 10 ºС / min from room temperature to 1000 ºС. The whole process of pyrolysis proceeded in the field of endothermy. The specific amounts of solid residue, pyrolysis liquid and gaseous products were experimentally determined. As a result of the pyrolysis of microalgae biomass weighing 15 g, the following products were obtained: 1) coal has the mass of the solid residue is 2.68 g, or 17.7% of the initial mass of the microalgae (while 9.3% of the initial mass of the microalgae remained in the reactor); 2) pyrolysis liquid – weight 3.3 g, or 21.9% of the initial weight; 3) non-condensable pyrolysis gases – weight 1.15 l. The specific volumetric gas yield (the amount of gas released from 1 kg of the starting material) was 0.076 Nm3/ kg. The analysis of the composition and specific volume yield of non-condensable pyrolysis gases formed in the process of pyrolysis, depending on temperature. It is shown that with increasing temperature, the proportion of highcalorie components of the gas mixture (hydrogen, methane and carbon monoxide) increases. The calorific value of the mixture of these gases has been estimated.



Jurnal Zarah ◽  
2018 ◽  
Vol 6 (2) ◽  
pp. 53-58
Author(s):  
Marniati Salim

Abstract In this study to the growth characteristics of microalgae (Dunaliella salina, Nannochloropsis oculata, Tetrasel mis chuii & Chaetoceros calcitrans), in different mediums, namely Bold’s Basal Medium (BBM) and BBM modification of sea water. The results obtained from microalgae (N.oculata, T.chuii, C.calcitrans) are better grown on BBM media while microlaga D.salina grows well on BBM modification of sea water. Microalgae biomass is extracted by maceration method in hexane and methanol solvents. Test bacteria used gram positive (Staphylococcus aureus) and gram negative (Escherichia coli). Inhibitory zone diameter results were compared with antimicrobial sensitivity tests according to Clinical and Laboratory Standards Institute (CLSI). From the results of microalgae hexane and methanol extract antibacterial activity tests (D.salina, N.oculata, T.chuii, C.calcitrans) showed that the extract was not too sensitive to inhibit bacterial growth.   Keywords: microalgae, medium, antimicrobial



2010 ◽  
pp. 82-87 ◽  
Author(s):  
Peter W. Rein

The production of bioethanol and biodiesel and the prospect of its importation into the EU have lead to various initiatives to ensure that only biofuels which are produced in a sustainable way are acceptable. Standards which are set to define the important sustainability issues are in various stages of development. The processes involved are of interest to the sugar industry, as both sugarcane and sugarbeet have enormous potential as feedstocks for bioethanol. The Better Sugarcane Initiative is underway to define standards for the sustainable production of both sugar and bioethanol from sugarcane. This paper attempts to discuss the major issues surrounding sustainable production of sugar and ethanol, outlining the processes involved in setting and maintaining sustainability standards. This is discussed in particular with respect to the development of the Better Sugarcane Initiative and looks forward to the implications for all stakeholders.



Author(s):  
G. Vinci ◽  
F. D’Ascenzo ◽  
A. Esposito ◽  
M. Musarra


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