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Aineistot 41-50 / 57
Assessing the potential for sea-based macroalgae cultivation and its application for nutrient removal in the Baltic Sea
<p>Marine <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/eutrophication" title="Learn more about eutrophication from ScienceDirect's AI-generated Topic Pages">eutrophication</a> is a pervasive and growing threat to global <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/environmental-impact-assessment" title="Learn more about sustainability from ScienceDirect's AI-generated Topic Pages">sustainability</a>. Macroalgal cultivation is a promising <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/circular-economy" title="Learn more about circular economy from ScienceDirect's AI-generated Topic Pages">circular economy</a> solution to achieve nutrient reduction and food security. However, the location of production hotspots is not well known. In this paper the production potential of <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/macroalgae" title="Learn more about macroalgae from ScienceDirect's AI-generated Topic Pages">macroalgae</a> of high commercial value was predicted across the Baltic Sea region. In addition, the nutrient limitation within and adjacent to macroalgal farms was investigated to suggest optimal site-specific configuration of farms. The production potential of Saccharina latissima was largely driven by <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/salinity" title="Learn more about salinity from ScienceDirect's AI-generated Topic Pages">salinity</a> and the highest production yields are expected in the westernmost Baltic Sea areas where salinity is >23. The direct and interactive effects of light availability, temperature, salinity and nutrient concentrations regulated the predicted changes in the production of Ulva intestinalis and Fucus vesiculosus. The western and southern Baltic Sea exhibited the highest farming potential for these species, with promising areas also in the eastern Baltic Sea. Macroalgal farming did not induce significant nutrient limitation. The expected spatial propagation of nutrient limitation caused by macroalgal farming was less than 100–250 m. Higher propagation distances were found in areas of low nutrient and low water exchange (e.g. offshore areas in the Baltic Proper) and smaller distances in areas of high nutrient and high water exchange (e.g. western Baltic Sea and Gulf of Riga). The generated maps provide the most sought-after input to support blue growth initiatives that foster the sustainable development of macroalgal cultivation and reduction of in situ nutrient loads in the Baltic Sea.<br></p>...
A novel UHPLC-ESI-MS/MS method and automatic calculation software for regiospecific analysis of triacylglycerols in natural fats and oils
<p>Regioisomeric analysis of triacylglycerols (TAGs) in natural oils and fats is a highly challenging task in analytical chemistry. Here we present a software (<i>TAG Analyzer</i>) for automatic calculation of regioisomeric ...
1H NMR Metabolomics of Chinese Human Milk at Different Stages of Lactation among Secretors and Non-Secretors
<p>Human milk is an intricate, bioactive food promoting infant health. We studied the composition of human milk samples collected over an 8-month lactation using <sup>1</sup>H NMR metabolomics. A total of 72 human breast ...
Effect of Acylated and Nonacylated Anthocyanins on Urine Metabolic Profile during the Development of Type 2 Diabetes in Zucker Diabetic Fatty Rats
<p> The effect of nonacylated and acylated anthocyanins on urinary metabolites in diabetic rats was investigated. Nonacylated anthocyanins extract from bilberries (NAAB) or acylated anthocyanins extract from purple potatoes ...
Influence of different Lachancea thermotolerans strains in the wine profile in the era of climate challenge
<p>The study performed sequential fermentations of red grape juice using several strains of Lachancea thermotolerans and one strain of Saccharomyces cerevisiae. Due to the new conditions imposed by climate change, wine acidity must be affected as well as the volatile profile. Non-Saccharomyces yeasts such as L. thermotolerans are real alternatives to soften the impact of climate change in winemaking. The L. thermotolerans strains included three commercially available strains and two wine-related natural isolates. L. thermotolerans showed significant statistical differences in basic chemical parameters such as lactic acid, malic acid, or ethanol concentrations as well as in the volatile profile. S. cerevisiae clearly produced some volatile compounds in higher amounts than the studied L. thermotolerans strains while others showed the opposite effect. Sequential fermentations involving any of the studied strains of L. thermotolerans with S. cerevisiae showed an increased volatile profile compared to the S. ceresisiae single fermentation, highlighting the synergic effect between the studied species.<br></p>...
Root vegetable side streams as sources of functional ingredients for food, nutraceutical and pharmaceutical applications: The current status and future prospects
<div><p><strong>Background</strong></p><p>Rapid growth of global population leads to an increase in food demand and food processing. Enormous amounts of root vegetable side streams (RVSS) are generated annually. Despite ...
NMR-based metabolomics approach on optimization of malolactic fermentation of sea buckthorn juice with Lactiplantibacillus plantarum
<p> This work investigated the impact of malolactic fermentation on the metabolomic profile of sea buckthorn juice to optimize the fermentation process for flavor modification. Six strains of L. plantarum were used with varied pH of the juice, cell acclimation, and fermentation time. <sup>1</sup>H-NOESY spectra were acquired from fresh and fermented juices with a total of 46 metabolites identified. Less sugars and quinic acid were metabolized at pH 2.7 while oxidation of ascorbic acid was reduced at pH 3.5. l-Malic acid, essential amino acids, and nucleosides were consumed early during fermentation while sugars in general were consumed later in the fermentation. If deacidification is the main target of fermentation, strains that produce less acids and ferment less sugars, shorter fermentation time, and lower starter pH should be used. Higher starter pH and longer fermentation time promote formation of antimicrobial compounds and potentially increase antioxidant stability. <br></p>...
Legacy of agrochemicals in the circular food economy: Glyphosate-based herbicides introduced via manure fertilizer affect the yield and biochemistry of perennial crop plants during the following year
<div><p>Conventional agricultural practices favoring the use of glyphosate-based herbicides (GBHs) increase the risk of GBH residues ending up in animal feed, feces, and, eventually, manure. The use of poultry manure as <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/organic-fertilizer" title="Learn more about organic fertilizer from ScienceDirect's AI-generated Topic Pages">organic fertilizer</a> in the circular food economy increases the unintentional introduction of GBH residues into horticultural and agricultural systems, with reportedly negative effects on the growth and reproduction of crop plants. To understand the potential lasting effects of exposure to GBH residues via organic manure <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/fertiliser" title="Learn more about fertilizers from ScienceDirect's AI-generated Topic Pages">fertilizers</a>, we studied strawberry (Fragaria x vescana) plant performance, yield quantity, <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/biochemistry" title="Learn more about biochemistry from ScienceDirect's AI-generated Topic Pages">biochemistry</a>, folivory, <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/phytochemistry" title="Learn more about phytochemistry from ScienceDirect's AI-generated Topic Pages">phytochemistry</a>, and soil elemental composition the year after exposure to GBH. Although plants exposed to GBH residues via manure fertilizer were, on average, 23% smaller in the year of exposure, they were able to compensate for their growth during the following growing season. Interestingly, GBH residue exposure in the previous growing season led to a trend in altered plant size preferences of folivores during the following growing season. Furthermore, the plants that had been exposed to GBH residues in the previous growing season produced 20% heavier fruits with an altered composition of <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/phenolic-compound" title="Learn more about phenolic compounds from ScienceDirect's AI-generated Topic Pages">phenolic compounds</a> compared to non-exposed plants. Our results indicate that GBHs introduced via manure fertilizer following <a href="https://www.sciencedirect.com/topics/earth-and-planetary-sciences/circular-economy" title="Learn more about circular economy from ScienceDirect's AI-generated Topic Pages">circular economy</a> practices in one year can have effects on perennial crop plants in the following year, although GBH residues in soil have largely vanished.<br></p></div>...
Chemical compositions, antioxidant activities and techno-functionality of spent grain treated by autoclave treatment: evaluation of water and temperature levels
Autoclave heating (AH) has been applied to modify the dietary fibre composition of dried brewers' spent grain (BSG) flour, which required multiple drying processes. The current study aimed to investigate the influence of ...