Physical and biological basis of production and processing of biomass for the energy resources


Physical and biological basis of production and processing of biomass for the energy resources

Leader: Prof. DSc Jerzy Tys

Team: Prof. DSc Bohdan Dobrzański; PhD Eng Agnieszka Kasprzycka; PhD Izabela Krzemińska; PhD Dariusz Wiącek; MSc Mariola Chmielewska; MSc Agata Piasecka; MSc Edyta Magierek


In recent years, demand for renewable energy has increased, which is associated with decreasing of  resources of conventional energy. Poland is obliged to implement quantitative targets for 2020, in the framework of climate and energy package, the so-called. “3 x 20%”:  reducing greenhouse gas emissions by 20% compared to 1990, reducing energy consumption by 20%, increasing the share of renewable energy to 20% of total energy consumption in the EU, including increasing the use of renewable energy sources in transport up to 10%.  Therefore, research in this task are focused on the implementation of the research, for which the results are a response to the new issues of the use of aw materials for energy purposes. In the area of research tasks, entitled: “Physical and biological basis of production and processing of biomass for the energy resources”, are implemented issues concerning on: management and processing of organic waste of different origin, sourcing and processing of new energy resources – microalgae and the determination of the energy values of the plant biomass.

Research profile of the task involves several issues, among others: pre-treatment of the difficult biodegradable lignocellulosic biomass to produce biomethane, optimization of the parameters process of methane fermentation process, selection of the biomass in the direction of composing the best mix of raw materials for biogas production, management of post-fermentation sludge and development of the various sludge processing methods to use it as a new product. Moreover, the studies concerning on biomass of microalgae. Microalgal biomass is considered as one of the promising feedstock for biofuels (Tang et al. 2011). Individual algal species differ in terms of nutritional and environmental requirements. Therefore, culture conditions have an effect on the algal growth rate, biomass production (Krzemińska et al.2014).


The aim of the study is to analyse the growth parameters and changes in the biochemical composition of unicellular algae in order to assess the potential use of modified substrates in algal cultures. The designed investigations will consist in maintenance of experimental cultures cultivated on modified media and analyses of the measurements of biomass growth using spectrophotometric, microscopic, and weight methods. To evaluate the biochemical composition, quantitative and qualitative analysis of unicellular algal biomass will be carried out.


In addition, in the frame of the task are carried out the research of physical methods of quality assessment of fruits and vegetables, study of mechanical properties of plant materials under static and dynamic loads and colouring of plant materials. Moreover, it is performed mechanical properties of crops, determination of strength parameters of materials important for agriculture and food processing, mechanical properties of fruits, vegetables, grains, and sprouts of flowers, examination, analysis and assessment of colours of materials and impact of agricultural technology, harvest, transport, storage and shelf-live of fruits and vegetables.



  1. Alam M.Z., Mahmat M.E., Muhammad N..:  Solid state bioconversion of oil palm biomass for ligninase enzyme production (2005 r.)  Artif. Cells, Blood Substitutes, Immobilization Biotechnol., 33, 457–466
  2. Kasprzycka A., Lalak J., Tys J.:  Wpływ stopnia rozdrobnienia biomasy roślinnej na produkcję biogazu. (2015 r.) Acta Agrophysica 2015, Vol. 22, 2, 139-149
  3. Krzemińska I., Pawlik-Skowrońska B., Trzcińska M., Tys J. 2014: Influence of photoperiods on the growth rate and biomass productivity of green microalgae. Bioprocess and Biosystems Engineering, Vol. 37, 4, 735-741
  4. Lalak J., Kasprzycka A., Martyniak D., Tys J.:  Effect of biological pretreatment of Agropyron elongatum ‘BAMAR’ on biogas production by anaerobic digestion (2016 r.) Bioresource Technology 2016, Vol. 200, doi:10.1016/j.biortech.2015.10.022, 194-200
  5. Tang H., Chen M., Garcia M.E.D., Abunasser N., Simon Ng K.Y., Salley S.O., 2011. Culture of microalgae Chlorella minutissima for biodiesel feedstock production. Biotechnol. Bioeng. 108, 10, 2280-2287
  6. Wiącek D., Tys J.:  Biogaz – wytwarzanie i możliwości jego wykorzystania (2015 r.) Acta Agrophysica Monographiae PL 2015, 1-92