Sökning: "preservatives"

Visar resultat 21 - 25 av 32 avhandlingar innehållade ordet preservatives.

1. 21. Physical-mechanical properties and natural durability of lesser used wood species from Mozambique

   Författare :Alexandre Charifo Ali; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : The aim of this study is to assess properties of lesser used/known timbers from Mozambique. The studied species were ncurri (Icuria dunensis Wieringa), ntholo (Pseudolachnostylis maprounaefolia Pax), metil (Sterculia appendiculata K. Schum), namuno (Acacia nigrescens Oliv.) and muanga (Pericopsis angolensis Meeuwen). LÄS MER

3. 22. Antimicrobial potential of Geobacillus sp. ZGt-1 isolated from Zara hot spring in Jordan : Piecing the puzzle of the antagonistic activity of a novel bacterial strain

   Författare :Rawana Alkhalili; Bioteknik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Thermophiles; Geobacillus; antimicrobial potential; antimicrobial peptides; bacteriocins; lanthipeptides; toxin-antitoxin; genome sequence;

   Sammanfattning : The problem of antibiotic resistance is rising continuously, creating a warning signal that calls for finding alternatives. Not only that, but there is also a rising demand for natural food preservatives. The pharmaceutical and food industry sectors are working on fulfilling these needs. This thesis is exploring possible solutions to these issues. LÄS MER

4. 23. Potential and problems related to reuse of water in households

   Författare :Eva Eriksson; Denmark Technical University of Denmark; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Natural Science; Naturvetenskap; Technology byts ev till Engineering ; Teknik;

   Sammanfattning : There is a growing demand in society for the introduction of decentralised sanitary reuse systems and the main reason for this is that centralised urban sanitation systems are expensive and resource-intensive. A second is water shortage and one way to reduce the need for freshwater is to reuse wastewater on-site. LÄS MER

5. 24. Effectiveness and Evaluation of Wood Protection against Biological Deterioration Caused by Filamentous Fungi

   Författare :Olena Myronycheva; Olov Karlsson; Lone Ross; Luleå tekniska universitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Träteknik; Wood Science and Engineering;

   Sammanfattning : Developing a holistic understanding of the biological deterioration of wooden material by fungi in the laboratory and outdoor conditions requires the development of new assessment procedures and tools that allow describing the process with maximum precision and accuracy. Environmental biodeterioration is a complex process including a combination of physical, chemical and biological changes, with many uncertainties limiting the predictability and effectiveness of selected preservatives after laboratory tests. LÄS MER

7. 25. Population size and genetic diversity of Nigerian lions (Panthera leo)

   Författare :Talatu Tende; MEMEG; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; non-invasive sampling; faecal DNA; protected area; isolated population; Panthera leo;

   Sammanfattning : High growth rate in human populations, agricultural developments and industrialization have impinged negatively on the natural habitats of most large carnivores, causing fragmentation, isolation and consequently reduction in population size. Lions (Panthera leo) that once roamed most parts of Southern Europe, Asia, the Middle East, North America, northern part of South America and most parts of Africa are today found only in parts of sub-Saharan Africa and at a single site in India. LÄS MER