scholarly journals Mathematical Modelling of Bioethanol Production from Raw Sugar Beet Cossettes in a Horizontal Rotating Tubular Bioreactor

Fermentation ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 13
Author(s):  
Mladen Pavlečić ◽  
Mario Novak ◽  
Antonija Trontel ◽  
Nenad Marđetko ◽  
Marina Grubišić ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Sugar Beet ◽  
Negative Impact ◽  
Substrate Inhibition ◽  
Bioethanol Production ◽  
Yeast Saccharomyces Cerevisiae ◽  
Raw Sugar ◽  
Tubular Bioreactor ◽  
Berkeley Madonna ◽  
Horizontal Rotating Tubular Bioreactor

Alternative to the use of fossil fuels are biofuels (e.g., bioethanol, biodiesel and biogas), which are more environmentally friendly and which can be produced from different renewable resources. In this investigation, bioethanol production from raw sugar beet cossettes (semi-solid substrate) by yeast Saccharomyces cerevisiae in a horizontal rotating tubular bioreactor (HRTB) was studied. Obtained results show that HRTB rotation mode (constant or interval) and rotation speed have considerable impact on the efficiency of bioethanol production in the HRTB. The main goal of this research was to develop a non-structural mathematical model of bioethanol production from raw sugar beet cossettes in the HRTB. The established mathematical model of bioethanol production in the HRTB describes substrate utilization and product formation (glycerol, ethanol and acetate) and presumes negative impact of high substrate concentration on the working microorganism (substrate inhibition) by using Andrews inhibition kinetics. All simulations of bioethanol production in the HRTB were performed by using Berkeley Madonna software, version 8.3.14 (Berkeley Madonna, Berkeley, CA, USA). The established non-structural bioprocess model describes relatively well the bioethanol production from raw sugar beet cossettes in the HRTB.

Bioethanol production from raw sugar beet cossettes in horizontal rotating tubular bioreactor

2017 ◽  
Vol 40 (11) ◽  
pp. 1679-1688 ◽  
Author(s):  
Mladen Pavlečić ◽  
Tonči Rezić ◽  
Mirela Ivančić Šantek ◽  
Predrag Horvat ◽  
Božidar Šantek
Keyword(s):  
Sugar Beet ◽  
Bioethanol Production ◽  
Raw Sugar ◽  
Tubular Bioreactor ◽  
Horizontal Rotating Tubular Bioreactor

Optimization of enzymatic sugar beet hydrolysis in a horizontal rotating tubular bioreactor

2016 ◽  
Vol 92 (3) ◽  
pp. 623-632 ◽  
Author(s):  
Martina Andlar ◽  
Iva Rezić ◽  
Damir Oros ◽  
Daniel Kracher ◽  
Roland Ludwig ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Tubular Bioreactor ◽  
Horizontal Rotating Tubular Bioreactor

scholarly journals Future of Insecticide Seed Treatment

2021 ◽  
Vol 13 (16) ◽  
pp. 8792
Author(s):  
Milorad Vojvodić ◽  
Renata Bažok
Keyword(s):  
Sugar Beet ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Seed Treatment ◽  
Negative Impact ◽  
Protective Measure ◽  
Lower Amount ◽  
Vegetable Crops ◽  
Good Efficacy ◽  
Active Substances

Seed treatment as a method of local application of pesticides in precise agriculture reduces the amount of pesticides used per unit area and is considered to be the safest, cheapest and most ecologically acceptable method of protecting seeds and young plants from pests in the early stages of their development. With the introduction of insecticides from the neonicotinoid group in the mid-1990s, the frequency of seed treatment increased. Due to suspected negative effects on pollinators, most of these insecticides are banned in the European Union. The ban has therefore led to a reduction in the number of active substances approved for seed treatment and to an increased re-use of active substances from the group of pyrethroids as well as other organophosphorus insecticides, which pose potentially very serious risks, perhaps even greater than those of the banned neonicotinoids. The objective of this review is to analyze the advantages and disadvantages of seed treatment and the potential role of insecticide seed treatment in reducing the negative impact of pesticides on the environment. The main disadvantage of this method is that it has been widely accepted and has become a prophylactic protective measure applied to almost all fields. This is contrary to the principles of integrated pest management and leads to an increased input of insecticides into the environment, by treating a larger number of hectares with a lower amount of active ingredient, and a negative impact on beneficial entomofauna. In addition, studies show that due to the prophylactic approach, the economic and technical justification of this method is often questionable. Extremely important for a quality implementation are the correct processing and implementation of the treatment procedure as well as the selection of appropriate insecticides, which have proven to be problematic in the case of neonicotinoids. The ban on neonicotinoids and the withdrawal of seed treatments in oilseed rape and sugar beet has led to increased problems with a range of pests affecting these crops at an early stage of growth. The results of the present studies indicate good efficacy of active ingredients belonging to the group of anthranilic diamides, cyantraniliprole and chlorantraniliprole in the treatment of maize, soybean, sugar beet and rice seeds on pests of the above-ground part of the plant, but not on wireworms. Good efficacy in controlling wireworms in maize is shown by an insecticide in the naturalites group, spinosad, but it is currently used to treat seeds of vegetable crops, mainly onions, to control onion flies and flies on other vegetable crops. Seed treatment as a method only fits in with the principles of integrated pest management when treated seeds are sown on land where there is a positive prognosis for pest infestation.

Bioethanol production from sugar beet molasses and thick juice by free and immobilisedSaccharomyces cerevisiae

2018 ◽  
Vol 125 (1) ◽  
pp. 134-142 ◽  
Author(s):  
Vesna M. Vučurović ◽  
Vladimir S. Puškaš ◽  
Uroš D. Miljić
Keyword(s):  
Sugar Beet ◽  
Bioethanol Production ◽  
Beet Molasses ◽  
Sugar Beet Molasses ◽  
Thick Juice

An Improved CARV Process for Bioethanol Production from a Mixture of Sugar Beet Mash and Potato Mash

2011 ◽  
Vol 75 (3) ◽  
pp. 602-604 ◽  
Author(s):  
Min-Soo YUN ◽  
Jeung-yil PARK ◽  
Mitsuhiro ARAKANE ◽  
Riki SHIROMA ◽  
Masakazu IKE ◽  
...  
Keyword(s):  
Sugar Beet ◽  
Bioethanol Production

scholarly journals Water resources planning in bioethanol production from sugarcane

Memorias ◽  
2018 ◽  
pp. 30-35
Author(s):  
Danny Ibarra Vega Danny Ibarra Vega ◽  
Carlos Peña Rincón ◽  
Johnny Valencia Calvo ◽  
Johan Manuel Redondo ◽  
Gerard Olivar Tost
Keyword(s):  
Mathematical Model ◽  
High Risk ◽  
Water Resources ◽  
Water Consumption ◽  
High Water ◽  
Water Shortage ◽  
Agricultural Crops ◽  
Bioethanol Production ◽  
Water Resources Planning ◽  
Resources Planning

The biofuels industry has grown and has positioned itself in Colombia for national purposes, these come from biomass sources such as agricultural crops. Bioethanol is the most used in Colombia and is obtained from sugarcane. One of the main concerns of the sector and society, is the high water consumption associated with agricultural crops (9,000 m3 / ha-year), there are currently 232,000 hectares of sugarcane for the production of sugar and bioethanol. Given the aforementioned, the need arises to carry out a planning of industrial increase of the sector taking into account as a main base the demand and availability of water resources for different activities in the Cauca river basin and the demand for sugarcane crops. In this document it is presented a mathematical model and the evaluation of different scenarios of the estimation of the trend of water consumption in the bioethanol production process in Colombia and in this way to establish scenarios of high risk of water shortage both for the population, interested parties and cane cultivation.

scholarly journals The effect of changes in opportunity costs and prices of some agricultural products such as sugar beet, corn,wheat etc. used for bioethanol production on the cost of bioethanol production is not adequately known in Turkey.. Therefore, it was aimed to determine the bioethanol production cost items and unit production costs and also to put forth the effects of variations in raw material prices on cost of bioethanol.. The research data were collected via personal interviews from active bioethanol plants in Turkey. The results of previous studies and documents of related institutions and organizations were also used. The study followed classical cost analysis approach to calculate production cost. Scenario analysis was performed when exploring the effect of raw material prices on bioethanol production cost. Research findings showed that production cost per litre bioethanol produced from sugar beet molasses, corn, wheat and corn-wheat mixture were 2.50 TL, 2.84 TL, 2.95 and 2.84 TL, respectively. The share of raw material expenses in bioethanol cost per liter varied associated with the crops used in the process, it was 28.55% for bioethanol produced from sugar beet molasses, 44.81% for bioethanol produced from corn-wheat mixture and 44.87% bioethanol produced from corn. The research results also showed that the changes that occur in raw material prices significantly affected the bioethanol production cost and opportunity cost of crops created difficulties in biomass supply. Implementing the suitable policies and strategies and making the necessary arrangements in legislation would enhance the economic sustainability of bioethanol production in Turkey.

2017 ◽  
Vol 32 (1) ◽  
pp. 16-16
Author(s):  
Selime Canan ◽  
Vedat Ceyhan
Keyword(s):  
Sugar Beet ◽  
Production Cost ◽  
Agricultural Products ◽  
Production Costs ◽  
Raw Material ◽  
Bioethanol Production ◽  
Beet Molasses ◽  
Sugar Beet Molasses ◽  
Research Findings ◽  
The Cost

scholarly journals Effects of the comminution rate and microbial contamination of particles in the rumen on accuracy ofin situestimates of digestion of protein and amino acids of dehydrated sugar beet pulp

2013 ◽  
Vol 152 (1) ◽  
pp. 166-174 ◽  
Author(s):  
J. GONZÁLEZ ◽  
J. M. ARROYO ◽  
J. A. GUEVARA-GONZÁLEZ ◽  
R. MOUBI ◽  
O. PIQUER ◽  
...  
Keyword(s):  
Amino Acids ◽  
Sugar Beet ◽  
Crude Protein ◽  
Microbial Contamination ◽  
Negative Impact ◽  
Degradation Kinetics ◽  
Sugar Beet Pulp ◽  
Fresh Weight Basis ◽  
Beet Pulp ◽  
Composite Samples

SUMMARYEffects of the correction of microbial contamination (using15N techniques) and of considering the comminution rate (kc) of particles in the rumen on effective estimates of the ruminally undegraded (RU) fraction and its intestinal effective digestibility (IED) were examined in a sample of dehydrated sugar beet pulp (DBP) generating composite samples (from rumen-incubated residues) representative of the chemical composition of RU. Tested fractions were dry matter (DM), organic matter (OM, tested only for RU), crude protein (CP) and amino acids (AA). The study was performed on three rumen and duodenum cannulated wethers fed with a 2 : 1 (fresh weight basis) chopped oat hay-to-concentrate diet supplied at 40 g DM/kg BW0·75in six equal meals per day. The DBP showed sigmoid degradation kinetics: the fractional degradation rate increased by 5·8 times as time (h) increased from 0 to∞. Thekcrate (measured in the diet concentrate) represented 5·74% of the total rumen retention time of particles. As a result, the RU of DM was over-evaluated by 6·53% whenkcwas not considered. Microbial contamination of RU was high as in DM as in CP. Therefore, the overestimation of RU of DM was increased to 12·2% when this contamination was not corrected. The lack of this correction also led to large over-evaluations of RU and IED of CP and AA. As a result, the overestimation of the intestinal digested fraction was 40·9% for CP and 45·0% for total analysed AA. This overestimation varied largely among AA (from 18·9 to 88·7%). Corrected proportions of RU and IED were also variable among AA. Hypotheses on the causes of this variability are given. Resultant changes in the AA profile of the intestinal digested protein had some negative impact on the supply of essential AA and cysteine without affecting lysine. This problem is limited because the microbial protein synthesized from DBP fermentation in the rumen is largely predominant in the AA supply to the host.

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