Małgorzata Krzywonos

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• Professor
• Professor (Full) at Wroclaw University of Economics and Business

This study investigates the potential use of white lupine straw (WLS), an underutilized agricultural by-product, as a raw material to produce valuable biochemicals such as monosaccharides and 5-hydroxymethylfurfural (5-HMF) through hydrothermal pretreatment. The aim was to optimize mild reaction conditions to maximize the recovery of these products...

Dieser Beitrag stellt die Entwicklung eines digitalen, projektbasierten Entrepreneurship-Kurses an der Hochschule für angewandte Wissenschaften München dar, der sich auf Greentech, Agriculture & Food konzentriert. Der 2020 initiierte Kurs passte sich den COVID-19- und Post-Pandemie-Herausforderungen an, indem er einen Flipped-Classroom-Ansatz und h...

In response to the growing imperative for sustainable entrepreneurship, this study investigates the efficacy of integrating targeted sustainability content into an action-learning-oriented international entrepreneurship course. This case study aimed to evaluate the impact of integrating sustainability content into an existing entrepreneurship cours...

Despite COVID-19, the world economy still contributes to the growth of production and consumption worldwide. Waste disposal, recycling management and energy generation are challenges for many companies in developing economies, including Poland. This article aims to assess the operation of a municipal waste treatment plant (MWTP) from the perspectiv...

Food waste is an extremely important problem that is an aspect of the wider issue of inefficient use of resources. While every ninth inhabitant of the Earth suffers from malnutrition, in highly developed countries, such as Poland, as much as 1/3 of food is thrown away. The aim of this article is to present the issue of food waste, especially in Pol...

The fruit processing industry generates enormous amounts of byproducts, which are primarily removed through landfill or incineration. However, these processes cause carbon dioxide and methane emissions and release dioxin into the environment. The management of fruit processing byproducts is important for reducing the amount of food waste that is se...

How can we best possibly design an international and multidisciplinary entrepreneurship learning experience which combines elements of on- and offline learning? This paper will outline the iterative design development of such a project-based, international, and cross-functional entrepreneurship course on Greentech, Agriculture, and Food in a flippe...

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 10103685

This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 10103685

Plants of the Lemnaceae family are becoming increasingly popular among researchers. The goal of the study was to characterize trends in scientific research related to the use of aquatic plants from the Lemnaceae family for energy purposes, especially for the production of biogas, bioethanol, and other biofuels. These plants fit perfectly into the c...

Cel: Celem artykułu było zbadanie oferty wegańskich wyrobów cukierniczych na wrocławskim rynku, identyfikacja brakujących produktów w ofercie cukierni, zrozumienie zapotrzebowania konsumentów oraz opracowanie prototypu wegańskiego sernika. Metodyka: Przeprowadzono analizę dostępności produktów wegańskich na rynku, a następnie opracowano recepturę i...

Current and future trends in the world population lead to the continuous growth of municipal waste volumes. Only in the EU-28 approx. 86 million tons of biowaste is produced yearly. On the other hand, the recent energy crisis calls for a fast transition towards more local and renewable energy sources. Most of this stream could be recycled through a...

Sustainable development lead to more mature and responsible production patterns and consumption. Nowadays the sustainable approach is necessary for adopting environmental solutions. The aim of this study is to give an overview of scientific research developed for Environmental Life Cycle Costing with Machine Learning. Combination of Life Cycle Cost...

Plants maintain the ecological equilibrium of the earth and stabilize the ecosystem. Today, traditional commodities and new value-added markets can be served simultaneously. There is significant biosource and bioprocess innovation for biobased industrial products. Furthermore, plant-based innovation is associated with the transition to sustainabili...

A review of the potential areas of algal biomass utilization has already been conducted. In addition to lowering the greenhouse effect and contributing to the decrease in the amounts of harmful substances in the air and water, attention has been paid to the possibility of utilizing algal biomass as a feedstock for the production of environmentally...

This scientometric review and bibliometric analysis aimed to characterize trends in scientific research related to algae, photobioreactors and astaxanthin. Scientific articles published between 1995 and 2020 in the Web of Science and Scopus bibliographic databases were analyzed. The article presents the number of scientific articles in particular y...

The current study evaluates a decentralized biorefinery's economic and environmental performance, which uses two-step pyrolysis for converting rice and wheat straw to bio-oil and biochar. The biorefinery was located in Punjab (India), where open burning of residue is prevalent. The decentralized biorefinery was evaluated regarding the energy requir...

The primary objective of this paper is to identify the possibilities of using sugar beet pulp as feedstock to produce a variety of added-value products. Such an application of the sugar production byproducts contributes to implementing circular bio-economy, which is a source of many economic, social, and environmental benefits. Specific objectives...

As a Guest editor, I have a pleasure to launch an open call for papers for a Special Issue of the Applied Sciences, an Open Access Journal by MDPI, "Innovative Environmental Technologies and Challenges". Impact Factor - 2, 474. Deadline: 10 August 2021.

The aim of this study was to analyse the feasibility of implementing the Paris Agreement and the provisions regarding the goals of reducing greenhouse gas emissions in the EU through Poland, the Czech Republic, Hungary and Slovakia, i.e., the so-called Visegrad Group States (V4). The basis of the study was an in-depth analysis of the energy policie...

Nowadays, municipal solid waste (MSW) management is one of the most critical issues. MSW may threaten the environment; however, the concerning high organic fraction content can be useful. This study aimed to compare the suitability of mechanically sorted organic fraction (OF) of MSW and source-segregated biowaste for biofertilizer usage. The compos...

Background: in the context of the ongoing obesity epidemic and increase in cases of metabolic disorders among the population, it is significant, from the health, nutritional, and economic point of view, to a look at the habits of sugar-sweetened beverage (SSB) consumption of adults in Poland. This study aims to determine the sweetened beverages, wh...

Lately, it has been observed that the variety of dietary supplements is rapidly growing. The aim of the study is to extend the classification of dietary supplements (DSs) intended for children above the age of 3, as well as to categorize the ingredients used to manufacture such products. Three hundred fifteen dietary supplements intended for childr...

Business is not only an important perpetrator of the environmental problems, but it also plays a key role in successfully addressing them. In the process of solving environmental problem not only the role of large companies but also entrepreneurs has been noticed. Environmental entrepreneurship (otherwise referred to as “ecopreneurship”) can be def...

PurposeIn this work one-stage, no presence of acidic catalyst hydrothermal extraction of pectin from sugar beet pulp (SBP) as a batch process was investigated, leading to increasing the value of this by-product of sugar beet industry.Methods The comprehensive study of the effect of the extraction temperature and the extraction time on the yield and...

In recent years, an increase has been reported in consumer awareness of balanced diet and health prevention. This caused the consumer interest in functional foods to increase. The major functional foods are products that contain prebiotics and probiotics. The most often eaten probiotic product is classic yogurt, however the fermented dairy and non-...

Niniejszy artykuł stanowi głos w dyskusji toczącej się w środowiskach naukowych związanych z dyscypliną „Nauki o zarządzaniu i jakości” na temat wyodrębnienia subdyscyplin i obszarów badawczych. Jego celem jest systematyzacja „Nauk o jakości” jako subdyscypliny ze szczególnym uwzględnieniem właściwych jej obszarów prowadzenia badań naukowych. Zapro...

Waste solid residue from the hydrothermal extraction of pectin derived from sugar beet pulp was used as feedstock in the production of 5-hydroxymethylfurfural (5-HMF). The depolymerization of pectin-free sugar beet pulp (PF-SBP) to monosaccharides and their dehydration to 5-HMF were conducted in subcritical water using a batch reactor. The experime...

Background: The aim of this study was to specify the amounts and the types of dietary supplements (DS) taken by children and define the attitudes of caregivers towards DS and towards administering them to children aged 3-12. An analysis of the reasons for using DSs, and of expected benefits and awareness of health risks associated with administeri...

Purpose This study aimed to examine the possibilities of the treatment of the by-products generated in the anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW): oxygen stabilization (composting) of the solid digestate and pretreatment with air stripping of the effluents (liquid digestate and leachate from maturation fie...

Niniejszy artykuł stanowi głos w dyskusji toczącej się w środowiskach naukowych związanych z dyscypliną nauki o zarządzaniu i jakości na temat wyodrębnienia subdyscyplin i obszarów badawczych. Jego celem jest systematyzacja nauk o jakości jako subdyscypliny ze szczególnym uwzględnieniem właściwych jej obszarów prowadzenia badań naukowych. Zapropono...

Sweetening agents (SA) and sweeteners are major additives used in the production of dietary supplements (DS), they fulfill both technological and organoleptic functions. The aim of this study is to identify the types of SA and sweeteners found in DS intended for children and to determine the secondary role of them. The study was performed on data f...

The replacement of fossil fuel with renewable energy sources seems as though it will be crucial in the future. On the other hand, waste generation increases year by year. Thus, waste-to-energy technologies fit in with the actual trends, such as the circular economy. The crucial type of generated waste is municipal solid waste, which is in the resea...

This study was aimed at examining the effect of hydraulic retention time (HRT) on the progress and efficiency of continuous biodegradation of sugar beet distillery stillage. Aerobic biodegradation of stillage was conducted in a 2-L stirred-tank reactor using a mixed culture of Bacillus bacteria under mesophilic conditions (36°C). Continuous process...

The consumption of dietary supplements (DSs) is rising among children. Lately the composition of such products has come under considerable criticism. Sweetening agents (SA) were identified and quantified in dietary supplements, which take the form of lollipops (lollipop supplements) using HPLC and the calorific value of the analysed products was de...

Anaerobic digestion (AD) is a commonly used method of processing waste. Regardless of the type of the used digestate (fertilizer, feedstock in case of solid-state fermentation, raw-material in case of thermal treatment) effective pathogen risk elimination, even in the case of high pathogen concentration is essential. An investigation of the surviva...

Local food production is meaningful not only for a single producer but also for the consumer, and finally for the entire region. Therefore, it would be beneficial to take up the issue of local entrepreneurship in the context of food production. The aim of the study was to analyze important terms, research topics, and research results related to the...

The molasse’s vinasse, because it contains three groups of color processes in it, i.e., melanoidins, hexose alkaline degradation products, and sucrose caramelization products, is one of the most difficult to treat wastewater. Vinasse is toxic to various microorganisms, harmful to soil, groundwater, and vegetation. The aim of the study was using fiv...

Composting is a natural process; however, many artificial factors have been developed to improve process efficiency for the organic fraction of municipal solid waste (OFMSW) stabilization in the mechanical – biological treatment (MBT) plant. The study aimed to assess the effect of aeration (X1), irrigation (X2), process time (X3) and turning freque...

We analyzed the effect of hydraulic retention time (HRT) and pH control of beet molasses vinasse on the efficiency of its continuous aerobic biodegradation with a mixed culture of Bacillus bacteria. Two experimental series were conducted in a 2-L stirred-tank reactor, at an aeration rate of 1 vvm, stirrer speed of 900 rpm, and temperature of 36 °C....

Automatic milking differs from natural sucking behavior, and it affects animal health. Subatmospheric pressure is the main parameter of a mechanical milker, and it is produced to overcome teat resistance, open the teat sphincter, keep the milking unit attached to teats, suck milk from the teat sinus and transport milk to the pipeline. Bernoulli’s e...

Due to various ecological problems, it is required to remove the ammonia nitrogen from wastewater. Industrial wastewater that was not subjected to any purification was used in this study, while most processes described in the literature were carried out using synthetically prepared solutions. The study investigated the removal of ammonium ions usin...

Environmental Life Cycle Costing (ELCC) is a summary of all costs related to the product life cycle that are covered directly by one or more entities engaged in this life cycle (e.g. by the supplier, producer, user or consumer as well as all persons involved in the “end of life” phase), increased by the costs of environmental impact. Its correct im...

The hydrolysis of high methyl ester citrus-apple pectin as a model substance for plant biomass waste rich in pectin fraction resulting in an uronic acids was performed in a batch reactor using subcritical water. The effects of the reaction temperature and time on the composition of the products contained in the separated liquid fractions were studi...

Three modern didactic res. stands (photovoltaic panels, a wind turbine and a Pelton water turbine) were designed, built and programmed, allowing for practical understanding the phenomena related to the conversion of energy from renewable sources. The stand with photovoltaic panels with a surface of 0.5 m2 and a max. power of 50 W was equipped with...

We propose a one-stage hydrothermal extraction of sugar beet pulp leading to effective co-production of pectin and neutral monosaccharides with a relatively high yield and satisfactory purity without the presence of an acidic catalyst. The optimal experimental design methodology was used for modelling and optimizing the yield of pectin and neutral...

The waste‐free policy is part of the process of sugar production from beets in which the resulting molasses are used for ethanol production. However, during this process another byproduct, namely vinasse, is created. Therefore, there is a problem with the utilization of wastewater, which cannot be disposed to the environment without being treated....

The objective of this paper was to compare the markets and methods of production of ethanol to be used in transport in Poland and Brazil. Differences in terminology associated with its use for transport purposes in both countries have been discussed, as well as the market-related aspects of such use, comparing, among other things, the scale of prod...

Vinasse is the waste product from the production of ethanol that is most loaded with pollutants. Known methods of treating vinasse allow for a reduction in the pollution load, but do not remove the brown colour. The aim of this study was to investigate the effect of the addition of yeast extract (YE) on the decolourization of sugar beet molasses vi...

Anaerobic digestion (AD) has been used widely as a form of energy recovery by biogas production from the organic fraction of municipal solid wastes (OFMSW). The aim of this study was to evaluate the effect of the introduction of co-substrates (restaurant wastes, corn whole stillage, effluents from the cleaning of chocolate transportation tanks) on...

Opisano występowanie akryloamidu w żyw-ności oraz mechanizmy jego powstawania. Przedstawiono szkodliwy wypływ akryloamidu, konsekwencje zdrowotne związane z jego spożywaniem oraz szacowane spożycie ze szczególnym uwzględnieniem dzieci. Wskazano sposoby przetwarzania żywności pod kątem możliwości ograniczania zachodzenia reakcji Maillarda i unikania...

The influence of the acidic hydrolysis (reaction time (15 and 30 min.) and acid concentration (1, 3 and 5% H2SO4)) conducted at 121°C on chemical composition of the raw wheat stillage fractions has been studied. After hydrolysis, an attempt was made to detoxify, i.e. to remove substances (mainly furfurals) that inhibit the course of ethanol ferment...

Model citrus-apple pectins were depolymerized under hydrothermal conditions to study the influence of basic reaction parameters (temp., hydrolysis time) on the compn. of the liq. fraction. Effect of liq. fraction-contained hydrolysis products on the growth of lactic acid bacteria Lactobacillus plantarum MILab393 was also studied by measuring the ch...

Heavy metals are the main pollutants in electroplating wastewater. Currently, mainly chemical methods, which generate huge amounts of toxic sludge, are used in industrial wastewater treatment. To achieve environmental sustainability, there is a need to introduce an eco-friendly treatment of such contaminated wastewater. The present study was carrie...

The aim of the work was to analyze the properties and to compare the processes of production of synthetic biohydrocarbons using the ETG method and the selected conventional transport biofuels produced in Poland, from the perspective of the environmental effect achieved, expressed as CO2 emission reduction. Research was conducted using the BIOGRACE...

Beet stillage is a high-strength effluent from the production of ethanol from sugar beet. A large annual volume of sugar beet stillage requires finding new effective ways for its utilization. The aim of the study was to investigate the effect of temperature on the efficiency of aerobic biodegradation of beet stillage. Biodegradation was carried out...

Distilleries, in addition to ethanol, produced vinasse which is hazardous for the environment. Sugar beet molasses vinasse (BMV) is the most problematic waste from distilleries because of the coloured compounds contained therein. Traditional methods of the removal of the pollutant load from the waste do not allow simultaneous decolourization. The p...

Vinasse is a by-product of ethanol fermentation. Its dark brown colour, which is attributable to the presence of caramels, melanoidins and invert alkaline degradation products, cannot be removed by biological methods. The aim of the study was to determine the efficiency of five natural sorbents (halloysite KR, halloysite PJC, zeolite I, zeolite II,...

Beet molasses vinasse is formed in large quantities as a waste product of the distillery industry, where the molasses derived from sugar beet is used as a raw material. This vinasse has a dark color, low pH, and chelating properties. Many microorganisms have the ability to decolorize and biodegrade beet molasses vinasse. In this work, different cul...

http://www.dbc.wroc.pl/dlibra/docmetadata?id=41210&from=publication

Astaxanthin is a carotenoid used in the pharmaceutical, nutraceutical, and food industry. In order to obtain a high biomass yield of the microalgae, it is necessary to provide the proper amount of feed, light source, the optimum temperature and pH of the medium. The aim of the work was to design and implement a computerized system to control remote...

The development of bio-economy in Poland is dependent on close collaboration between employees of universities, public administrations and entrepreneurs. The article diagnosed conditions of the bio-economy in the world and in Poland and indicated the directions of change and prospects for development. The concept of bio-economy has been presented,...

W strategii „Europa 2020” podkreślono znaczenie biogospodarki dla inteligentnego i ekologicznego wzrostu. Artykuł wskazuje, że osiągnięcia związane z upowszechnianiem wyników badań naukowych i innowacji w dziedzinie biogospodarki i związana z tym poprawa zarządzania odnawialnymi zasobami biologicznymi oraz stworzenie nowych, zróżnicowanych rynków ż...

Summary: It has been estimated that the growth of the dietary supplements (DS) market will have amounted to 8% annually by 2020 and it will reach an estimated value of 5.04 billion PLN then. Within this group of products, one can notice the growing significance of DS intended for children aged 0-10.The preliminary research on the number and the typ...

Expert system and Delphi method were used to est. the shares of biocomponents in motor fuels in 2020–2030. The share of biofuels in transport fuel will increase from 10.3% in 2020 up to 19.7% in 2030. The share of 1st generation biofuels on 2020 was estd. as 74% but will decrease down to 25% in 2030. The share of 3rd generation biofuels will increa...

Streszczenie. Melasowy wywar buraczany to ciemnobrunatna ciecz stanowiąca produkt uboczny gorzelni. Kolor zawdzięcza głównie takim związkom barwnym jak karmele, mela-noidyny i produkty alkalicznego rozkładu inwertu. Substancje te uniemożliwiają biodegra-dację wywaru. Dekoloryzacja mikrobiologiczna to jeden ze sposobów zmniejszania barwy tego uciążl...

Expert system and Delphi method were used to est. the shares of biocomponents in motor fuels in 2020-2030. The share of biofuels in transport fuel will increase from 10.3% in 2020 up to 19.7% in 2030. The share of 1st generation biofuels on 2020 was estd. as 74% but will decrease down to 25% in 2030. The share of 3rd generation biofuels will increa...

The main objective of the article is to show the influence of consumer ethnocentrism on the regional products on the market. Consumers give more attention today to look not only on the ingredients, they watch carefully in which country products are made. In the article it has been shown why some of the customers would like to buy only products, wh...

Streszczenie. Dokonano przeglądu literaturowego, którego celem było m.in. wyjaśnienie ważnej roli betainy w świecie mikroorganizmów, roślin i zwierząt oraz tego, jak istotne znaczenie ma ona dla organizmu ludzkiego. Za najważniejsze funkcje betainy uważa się jej zdolność do osmopro-tekcji, a także do przenoszenia grup metylowych. Dzięki tym właściw...

A review, with 122 refs., of chem., phys. and mech. methods and industrial projects of the process commercialization. Przedstawiono metody obróbki wstępnej materiałów lignocelulozowych, kluczowego etapu produkcji bioetanolu, od którego zależy efektywność procesu. Opisano wady i zalety każdej z metod konwersji. Przytoczono przykłady biorafinerii wyt...