The physiological state of yeast affects the intensity of propagation and biosynthesis of secondary metabolites and determines the sensory profile of beer. Besides that, yeast […]
Above ground and below ground biomass in grey alder Alnus incana (L.) Moench. young stands on agricultural land in central part of Latvia
Young grey alder stands under 10 years of age that are growing on abandoned agricultural lands in Central Latvian lowlands were selected for this study. […]
Green energy from different feedstock processed under anaerobic conditions
The possible use of energy crops and aquaculture for bioenergy production has only recently become a research target, so there is little information on their […]
Production of fermentation feedstock from lignocellulosic biomass: applications of membrane separation
The development of cost-efficient, highly productive technologies for fermentation feed production from lignocellulose biomass is still a challenge. In this paper, the production of fermentable […]
Profitability of hybrid aspen breeding in Latvia
Hybrid aspen (Populus tremuloides × P. tremula) has fast growth in climatic conditions of Northern Europe and relatively high wood quality. Therefore, breeding of it […]
Anaerobic digestion of vegetables processing wastes with catalyst metaferm
There are 54 active biogas plants in Latvia today. It is necessary to investigate the suitability of various biomasses for energy production. Maize is the […]
Formation of height increment of hybrid aspen in Latvia
Annual increment of hybrid aspen exceeds that of other tree species (including common aspen) in Baltic States. Notable (several-fold) differences in productivity between clones have […]
Comparison of technologic parameters of pellets and other solid fuels produced from various raw materials
The article relates results of experiments and problem studies, the main goal of which was comparing four alternatives of solid biofuels suitable for heating private […]
Impact of synthetic hormone 17α-ethinylestradiol on growth of microalgae Desmodesmus communis
Microalgae has recently attracted much attention as a feedstock for biogas. Using wastewater as microalgae nutrition is a way how to produce algal biomass with […]
Energy crops utilization as an alternative agricultural production
Nowadays an increasing attention is given to the production and use of solid biofuels as an alternative to traditional fossil fuels. The common raw material […]