Rural Development 2019: Research and Innovation for Bioeconomy“ (RD2019): Proceedings of the 9th International Scientific Conference

Permanent URI for this collection

Browse

Recent Submissions

Now showing 1 - 5 of 86
  • research article ; ; ;
    Rural development 2019 : research and innovation for bioeconomy (RD2019) [elektroninis išteklius] : 9th international scientific conference, September 26-28, 2019, Agriculture Academy of Vytautas Magnus University. Akademija : Agriculture Academy of Vytautas Magnus University, p. 1-7
    Field experiments were carried out at the Experimental Station of Vytautas Magnus University (54º52′ N, 23º49′ E)in Lithuania.Winter wheat wasgrown on the background of N150P90K90 mineral fertilization and was additionally foliar-fertilized with different concentrations of amino acid solutions (0.5–3.0%) at stem elongation and heading stages. The study was aimed to establish protein content as well as quantitative and qualitative distribution of amino acids in winter wheat grain as influenced by fertilization with different concentrations of amino acids.Experimental evidence showed that solutions with different concentrations of amino acids applied at winter wheat stem elongationand heading stages increased grain protein content and total amino acids contents.Plants, fertilized with amino acids solutionsat stem elongationstage accumulated higher protein content by on average 4.8%, at heading stage by 4.5%compared with the grain protein content of plants that had not received amino acids fertilization. The total amino acids content in winter wheat grain in response to amino acids applied at stem elongationstage increased by on average 2.0 g kg-1, at heading stage by 5.3 g kg-1. Nonessential and essential amino acids content in winter wheat grain was significantly increased by 2.5 and 3.0% amino acids solutions, applied atstem elongationstage byand0.5, 1.0, 1.5% amino acids solutions applied at heading stage. Winter wheat fertilization with amino acids solutions at stem elongationstage mostly increased the content of glutamic acid, at heading stage mostly increased thecontents of glutamic, aspartic, valine, isoleucine, leucine, phenylalanine, methionine, threonine and lysine acids.
      19  51
  • research article
    Falkauskas, Rimvydas
    ;
    Baliukonienė, Violeta
    ;
    Bakutis, Bronius
    ;
    Jovaišienė, Jurgita
    Rural development 2019 : research and innovation for bioeconomy (RD2019) : proceedings of the 9th international scientific conference, September 26-28, 2019, Agriculture Academy of Vytautas Magnus University, 2019, p. 8-12
    The research aims of this study were to determine and to evaluate the effect of feed contaminated with different concentrations of fusariotoxins (zearalenone (ZEA), deoxynivalenol (DON) on the quality of milk investigate concentration zearalenone in cow milk samples. Feed and milk samples were collected from dairy farms which were the high Total Bacterial Count (TBC) and Somatic Cell Count (SCC) in milk. Feed samples were tested by TLC (Romer Labs methods). The zearalenone (ZEA) in the milk was measured by ELISA test, RIDASCREEN® Zearalenon (R-Biopharm AG). The milk qualitative indicators testing was conducted by public enterprise „Pieno tyrimai“ (Lithuania). From 12 dairy cow farms, which have high TBC and SCC, were selected feed samples for detection of fusariotoxins. Average ZEA concentration in feed was 496.25±51 µg/kg (p<0.05), DON average concentration in feed was 65.31±12 µg/kg (p<0.05). Higher amount TBC in milk samples were in those farms where was detection ZEA and DON concentration. As a result, we can assume that the higher TBC in milk samples than 221±20 thous. CFU/ml was find in farms where in feed samples was detected the higher ZEA concentration than 700±50 µg/kg (p<0.05). The highest levels than 650±42 of SCC in milk were found when the feed samples were contaminated ZEA - 700±50 µg/kg (p<0.05) and more. It can also be observed that the higher the ZEA concentration in the sample is, the higher the amount of SCC follows. Comparing concentration ZEA in feed and in milk established percent from 0.01 to 0.31 % (p<0.05). The highest levels of SCC and TBC were found in samples with high concentrations of ZEA. In 16 % milk samples we detected ZEA, concentration was from 0.08 µg/l to 0.4 µg/l.
      11  24
  • research article
    Greco, Carlo
    ;
    Comparetti, Antonio
    ;
    Mammano, Michele Massimo
    ;
    Orlando, Santo
    Rural development 2019 : research and innovation for bioeconomy (RD2019) : proceedings of the 9th international scientific conference, September 26-28, 2019, Agriculture Academy of Vytautas Magnus University, 2019, p. 13-20
    The modern agricultural system is wasteful, with Europe generating some 700 million tonnes of agricultural and food waste each year. In the context of the agri-food chain, the ‘circular economy’ aims to reduce waste while also making best use of the ‘wastes’ produced by using economically viable processes and procedures to increase their value. In this paper we will try to frame the key issues associated with food waste into the emerging bioeconomy and circulareconomic mode, suggesting that these three concepts are intertwined, and considering them unitarily might provide win-win solutions that minimize wastage, promote income growth and job creation, and prompt sustainable local development. In terms of performance and economic considerations, peat is in many ways an ideal constituent of soilless growing media. Peat has become the material of choice throughout plant production systems from propagation to saleable ‘finished plant’ material. However, the extraction of peat has well documented negative impacts on the environment; arguably the most important of these is the release of stable, sequestered carbon into the active carbon cycle, thereby exacerbating climate change. During the la st 20 years, peat extraction has come under increasing scrutiny throughout Europe and particularly in the UK. This has generated an abundance of studies examining a diverse range of alternative materials (as compost, vermicompost, digestate, biochar). In the selection of new materials, environmental considerations have become as important as performance and economic cost. In this context there has been a justifiable emphasis on organic materials derived from agricultural, industrial and municipal waste streams. For future urban sustainability it is necessary to develop integrated processes, which can be part of a circular bio-economy. However the challenge still remains of simultaneously recycling the nutrients from the waste. The greenhouse horticulture applied to nutraceutical species is the ideal sector for improving the conversion rate of organic waste into food and health friendly products. On far composting/vermicomposting/pyrolysis/anaerobic digestion and the use of the end-product to the partial substitution of peat in nursery activity allows reducing the environmental and economic costs in the production of potted plants.
      29  60
  • research article ; ;
    Rural development 2019 : research and innovation for bioeconomy (RD2019) [elektroninis išteklius] : 9th international scientific conference, September 26-28, 2019, Agriculture Academy of Vytautas Magnus University. Akademija : Agriculture Academy of Vytautas Magnus University, p. 21-27
    In traditional farming, plants require a lot of space (growing area), they consume a large amount of water, absorb a small percentage of nutrients in soil and are completely dependent on meteorological conditions. Therefore, growing crops in this way entails high costs and a highrisk of invested funds. One of the measures to reduce these factors is the use of hydroponics. In the study six types of hydroponic systems (HS) plant constructions based on plant nutrient supply technology were reviewed: ebb and flow HS; nutrient film technique (NFT)HS; aeroponics; deep water culture HS; “wick” HS and drip-irrigation HS. In addition, a review of thestructuraldesign of the hydroponic systems identified their advantages and disadvantages in green fodderproduction. The most promising technology for the cultivation of green fodder is the NFT HS. This cultivation technology is appreciated in feed production for its highly utilized growing room volume and closed-loop irrigationsolution to plants, which allowsit to be easily automated based on solution parameters. Seven farms already have this technology in place in Lithuania. In order to optimize hydroponic foddercultivation technology, it is expedient to improve NFTequipment and process control systems.
      131  165
  • research article
    Iorgachova, Kateryna
    ;
    Makarova, Olga
    ;
    Sokolova, Nataliia
    ;
    Khvostenko, Kateryna
    Rural development 2019 : research and innovation for bioeconomy (RD2019) : proceedings of the 9th international scientific conference, September 26-28, 2019, Agriculture Academy of Vytautas Magnus University, 2019, p. 28-33
    In recent years, it is a global trend of avoiding the use of synthetic ingredients for the food products quality enhancement. In this case it is actual task to search for the alternative natural raw materials, which provide the stabilization the products quality during storage. Due to their chemical composition, physiological and functional-technological properties the usage of herbs is a perspective solution of this problem. The aim of the study was to evaluate the effectiveness of natural ingredients based on herbs (powder and extracts) on the rancidity retardation. The antioxidant effect of herb raw-materials (hop, chamomile, nettle) was studied for the low-moisture bakery products with high fat content. These products are the ideal type of “food on the go” with long term of storage, which characterized with increasing popularity among modern consumers. The study was conducted at the Odessa National Academy of Food Technologies labs. The peroxide value of samples was determined by iodometric method (ISO 3960:2017). The results revealed that addition of natural antioxidants to the bakery goods in comparison to products without additives reduced this indicator up to the 37…52 % for the samples with herbs. It has been determined that hop, chamomile and nettle incorporation have pronounced antiseptic properties also. The use of herbs in the low-moisture bakery products technology leads to the quality stabilization during their shelf life, improvement of nutritional value and it may be more attractive to consumers due to their natural origin.
      11  9