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Organic milk as medium for lactic acid bacteria growth: A review
2023
Sabunevica, Stefanija | Zagorska, Jelena
In recent years, the demand for organic fermented dairy products has been growing. Lactic acid bacteria (LAB) are of major interest in the food industry due to their ability to form the quality and functionality of fermented products. A significantly higher LAB cell count is presented in organic (ORG) fermented products such as yoghurt and kefir, than their conventional (CONV) counterparts. There is still a lack of information on the possible explanation and evidence of ORG milk as a better medium for LAB growth. The aim of the present review is to summarise the results of research articles on the milk compounds and their effect on LAB growth, and to identify differences between ORG and CONV milk that may provide a plausible explanation for their influence on LAB growth in ORG milk. The monographic method was used in this study. According to the previous research, significant differences were established in a content and range of carbohydrates, nitrogen sources, fats, macro elements and microelements, as well bioactive compounds in ORG and CONV milk. The composition of ORG milk may have potential benefits for the development of LAB due to the higher concentration of peptides and long-chain polyunsaturated fatty acids in it.
Show more [+] Less [-]Factors influencing work-related attitudes of top managers: An expert perspective
2023
Roscher, Bjarne Erik | Balina, Signe
This research in progress paper investigates the multifaceted factors shaping the work-related attitudes of top managers in organizations with a focus on Germany. Through in-depth interviews with seasoned experts, it reveals crucial work attitudes, examines the impact of interpersonal and procedural factors, and evaluates information’s role in the principal-agent relationship at top management levels. The findings challenge conventional assumptions, providing different perspectives on leadership and highlighting the evolving nature of management practices in the digital age. The study also explores potential differences between top IT managers and other C-level roles, investigating their implications. The results of this research based on expert interviews are used in a broader context of research to triangulate literature analysis findings and quantitative surveys in order to develop a comprehensive understanding of factors influencing top managers’ work attitudes. Semi-structured expert interviews were conducted to gain a comprehensive perspective on the influencing factors of work attitudes in top management functions. Six German experts participated, bringing diverse backgrounds and affiliations with professional associations. Despite varied perspectives, universal importance was identified in key work attitudes, challenging assumptions of significant differences between employer and employee representatives. A novel contrast between hierarchical and broader perspectives within owner and worker associations emerged, suggesting a need for a more comprehensive understanding of management approaches. Additionally, interpersonal factors in leadership, information flow, trust-building, were highlighted as contributions. Furthermore, distinctions and commonalities between IT management and other top managerial roles were identified. This study both confirms existing knowledge and introduces valuable insights to management science, potentially shaping future research and practices.
Show more [+] Less [-]A review on climate change, credit risk and agriculture
2024
Céu, Mário Santiago | Gaspar, Raquel Medeiros
Climate change poses a significant threat to agricultural productivity, necessitating a comprehensive understanding of its implications for both agricultural firms and capital lenders. This systematic literature review aims to elucidate emerging trends in addressing climate-related risks in agriculture and credit sectors. Drawing from a rigorous analysis of 39 articles sourced from Scopus and Web of Science databases, three key thematic dimensions have emerged: (i) agricultural lending and credit risk, (ii) green principles and sustainability, and (iii) the context of developing countries. From the impact of climate change on the recoverability of loans to the imperative of transitioning towards a greener and more sustainable economy, alongside the nuanced challenges faced by agriculture in developing countries, we analysed prominent and recent literary approaches. The findings underscore the need to integrate climate change considerations into agricultural and credit policies. Policymakers and financial institutions should prioritize climate education for farmers and promote sustainable financial approaches. Anticipated climate risks will impact lenders’ capital reserves, necessitating portfolio adjustments. A deep understanding of climate change’s interplay with agriculture lending and credit risk is vital, urging proactive policy and practice. Addressing climate challenges in agriculture demands a multifaceted strategy encompassing tailored credit policies, improved access to credit, financial empowerment, and the mitigation of social inequalities. This review highlights the urgent need for proactive strategies to mitigate climate risks and ensure a resilient agricultural sector, emphasizing the crucial role of research and policy interventions in navigating the complex landscape of climate change impacts on agriculture.
Show more [+] Less [-]Effect of storage period on acid value and sensory attributes of puffed wheat grains ‘Badyrak vanilla’ and ‘Badyrak with whey’
2023
Konkubaeva, Nurzat | Kulmyrzaev, Asylbek | Deydiev, Anarseit | Radenkovs, Vitalijs | Galoburda, Ruta
Puffed grains made from whole wheat, corn or rice grains are ready-to-eat breakfast cereals that do not require additional preparation. Two recipes for puffed grain coatings were developed in the previous studies. Sunflower oil was used in the coating, which may affect storage stability. Due to lipid hydrolysis, free fatty acids may be released, causing rancid off-flavour. The aim of this study was to determine the changes in the acid value of lipids and sensory attributes of sweet-coated puffed wheat grains ‘Badyrak vanilla’ (BV) and ‘Badyrak with whey’ (MC) depending on temperature during their eight-month storage. The products were packaged in metallised polypropylene pouches, 30 g each. The acid value was studied monthly at different storage temperatures (20 ± 2 °С and 4 ± 2 °С). In puffed wheat grain products, 65% of fatty acids are polyunsaturated, 25% monounsaturated, and 10% saturated. The high proportion of unsaturated fatty acids over saturated makes oil more susceptible to oxidation. Literature studies and sensory evaluation of puffed wheat grains allowed setting a limiting acid value at 4.0 mg KOH gE−1 lipids. The increase in acid value was storage temperature dependent. Thus, the acid value exceeded the established limit in the fifth month for MC and the sixth month for BV when stored at 20 ± 2 °С. At the same time, noticeable changes in puffed wheat grain flavour were observed. The temperature coefficient (Q10) for MC was 2.0, whereas for BV it was 1.5, indicating that the acid value increase in MC was more affected by temperature than that in BV.
Show more [+] Less [-]Impacts of COVID-19 on the food supply chain for arable crops in Latvia
Upite, Ilze | Bite, Dina | Pilvere, Irina | Nipers, Aleksejs
The COVID-19 pandemic has caused unprecedented stress to food supply chains, pointing to weaknesses in the labour, processing, transport and logistics spheres, as well as significant changes in demand. Food supply chains have shown considerable resilience in the face of such stress. Monitoring of the food sector during the COVID-19 pandemic indicates that the effects of COVID-19 on food supply, demand and access are interlinked processes and have a complex impact on food systems. In addition, high-value food supply chains in developed countries are even more complex, so countries need to respond quickly to restore them and also develop mechanisms that balance business and public interests and protect farmers and food business workers during future potential pandemic crises. The research aims to identify the main demand and supply side factors that affect the resilience of local and global food supply chains during the COVID-19 crisis, as well as assess the resilience of the supply chain for arable crops during the COVID-19 crisis in Latvia, identifying the main risk factors. The research found that arable crop farmers were relatively less affected by the COVID-19 crisis than other agricultural employees. The impact of the crisis was larger on the crop processing industry than on the other industries, and the main risk factors related to changes in demand and the industry’s dependence on imported raw materials and the successful operation of export markets. Based on an in-depth risk analysis, the research developed recommendations for policy makers and actors in the agri-food chain that would improve the resilience of local (domestic) participants of the arable crop food supply chain in Latvia.
Show more [+] Less [-]The role of cereal and pulse constituents and processing technology in flake texture development: A review
2022
Lignicka, Ilva | Galoburda, Ruta
To meet the rising consumer demand for higher nutrition foods and to increase flake nutritional value and functionality, it is possible to combine cereals with pulses. For consumers, one of the most important quality parameters, along with appearance and taste, is texture. To produce the appropriate quality of flakes, the knowledge about the relationship between chemical composition, processing parameters, and texture is necessary. The aim of this study was to characterise the role of cereal and pulse constituents and processing technologies in flake texture development, which could be used in flake production for achieving the appropriate hardness and crunchiness of new products. The monographic method was used to characterise the constituent and processing technology`s role in cereal and pulse flake texture development. Information published from 2003 till 2022, in total 77 full text research articles, books and databases were analysed and summarised. Data analysed show if pulse and cereal nutritional information, mineral and vitamin content is known, it is possible to combine different cereals and pulses to provide a specific nutrient composition in the developed products. The main change in high starch products is a specific gelatinization and retrogradation behaviour of starch. Constituents such as lipids and proteins as well as processing technology and parameters, can significantly modify the properties and functionality of starch. Proteins can encapsulate starch granules, inhibit starch digestion and gelatinization, reduce starch structural order, and inhibit starch retrogradation.
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