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93 Uppsatser om Fatty acids - Sida 6 av 7

Evaluation of transgenic lines of field pepperweed (Lepidium campestre L.)

The worldwide industrial demand of energy, often in form of fossil fuel, is continuously growing and at the same time these resources are coming to an end (Hamamre, 2013). The interest and focus in renewable sources are then more important than ever and plants are suggested to be a good alternative for production of raw material for industrial purposes (Nilsson et al., 1998). But the world is also facing an increasing world population which also increase the nutritional needs, plants therefore need to be suitable for both industrial and nutritional purposes. To achieve this, common plants need to be improved but it also need new potential crops to be developed and introduced (Carlsson et al., 2009). Modern technology like gene engineering is an important tool to achieve these challenges (Carlsson et al., 2011). This work focused on analyzes and evaluation of different transgenic lines of field pepperweed (Lepidium campestre L.).

Konsolidering av v?vsp?nda papperstapeter: analys och metodutveckling

Printed and painted wallpaper on a weaved fabric backing was a common way to decorate homes in Sweden during the eighteenth and nineteenth centuries. Not much is written about the craftsmanship in relation to the hanging of these wallpapers and even less about the conservation of the objects. Even so, many wall segments remain in situ and in museums and are more often than not in dire need of conservation such as deacidification and consolidation. These are composite objects, consisting of cellulose materials with different properties along with adhesives and paints. Analysis of the materials is required to ensure safe handling and choice of conservation materials, and to establish a treatment plan which will be executed in several steps. This thesis aims to identify these steps and develop a method for conserving the wall segments with suitable materials, preferably without altering the source material to any significant degree.

Intag av mättat fett och risken att drabbas av hjärt- och kärlsjukdom : en litteraturstudie

Syfte och frågeställningarHuvudsyftet med denna studie var att klargöra huruvida intaget av mättat fett påverkar risken för att drabbas av, eller avlida i hjärt- och kärsjukdom. Ett annat syfte var att undersöka om intaget av fleromättat fett eller en kost med hög kvot av fleromättat fett/mättat fett (FM/M) fungerar som prevention mot hjärt- och kärlsjukdomar. Frågeställningarna var följande;Påverkar intaget av mättat fett risken att drabbas av hjärt- och kärlsjukdom?Påverkar intaget av mättat fett risken att dö i hjärt- och kärlsjukdom?Kan intag av fleromättat fett eller en kost med hög FM/M kvot fungera som prevention mot hjärt- och kärlsjukdomar?MetodLitteratur utgivna fr.o.m. 1 januari 1999 t.o.m.

BARNS UPPLEVELSER AV RADIOLOGISK UNDERSÖKNING UNDER SIN SJUKHUSVISTELSE : - En litteraturstudie

Syfte och frågeställningarHuvudsyftet med denna studie var att klargöra huruvida intaget av mättat fett påverkar risken för att drabbas av, eller avlida i hjärt- och kärsjukdom. Ett annat syfte var att undersöka om intaget av fleromättat fett eller en kost med hög kvot av fleromättat fett/mättat fett (FM/M) fungerar som prevention mot hjärt- och kärlsjukdomar. Frågeställningarna var följande;Påverkar intaget av mättat fett risken att drabbas av hjärt- och kärlsjukdom?Påverkar intaget av mättat fett risken att dö i hjärt- och kärlsjukdom?Kan intag av fleromättat fett eller en kost med hög FM/M kvot fungera som prevention mot hjärt- och kärlsjukdomar?MetodLitteratur utgivna fr.o.m. 1 januari 1999 t.o.m.

The effect of arginine on root system development in Norway spruce (Picea abies L. Karst) somatic embryos

The demands for higher production yields and better quality materials from the forests are increasing globally. Tree breeding programs are directed to meet the future demands on forests. In order to capture the full benefits from the breeding programs, clonal propagation is necessary. For most conifer species, somatic embryogenesis (SE) is the only available option for large scale clonal propagation of Elite clonal material. For Norway spruce (Picea abies L.

Kan mjölkkors utnyttjande av vallprotein bli bättre? : utfodringsstrategier och konserveringsmetoder

The purpose with this literature study was to investigate the possibilities for improvement of forage protein in dairy cows with focus on feeding strategies and conservation of forage protein. The utilization of forage protein in dairy cows is often not that efficient as it could be. The feed crude protein consists of both true proteins and non protein nitrogen. The digestion of proteins in the rumen depends on the protein degradation rate and the ability of the microbes to synthesize microbial protein. The microbes need a balance between carbohydrates that provide them with energy and proteins that are degradable in the rumen.

Flerom?ttat fett biter inte p? inflammation efter m?ltid - En systematisk ?versiktsartikel om m?ttat fett och flerom?ttat fett har olika effekt p? inflammationsmark?ren interleukin-6 postprandiellt.

Syfte: Syftet ?r att unders?ka om intag av m?ttat och flerom?ttat fett har olika effekt p? postprandiell inflammation, hos friska vuxna i ?ldrarna 18-70 ?r. Metod: F?r att genomf?ra denna systematiska ?versiktsartikel utf?rdes litteraturs?kningar i databaserna PubMed och Scopus. Specifika s?kblock skapades f?r varje databas f?r att identifiera vetenskapliga artiklar g?llande postprandiell inflammation efter intag av m?ttat eller flerom?ttat fett. Nyckelord som anv?ndes i s?kningen inkluderade ?fatty acid?, ?inflammation? och "postprandial". Titlar och abstrakt av de h?mtade artiklarna granskades f?r att bed?ma deras relevans f?r studiens syfte.

Metodutveckling för analys av PBDE och HBCD i sediment

Brominated flame retardants (BFRs) has for many years been used in products to reduce their flammability, mainly in electronic products, textiles and construction materials. In 2003, Sweden imported 300 tons of brominated flame retardants. Leakage of these compounds has polluted natural environments. Fishes has shown increased contents of these substances, especially fat fish, since brominated flame retardants tends to accumulate in fatty tissues. They are also regarded as persistent and that gives them the ability to travel long distances. What also is really scary is that increased levels of brominated flame retardants have been detected in human breast milk. The knowledge of the brominated flame retardants is limited and not so much research has been done in this field. There are many reasons though, to keep the research going. Partly their structural resemblance to well-known toxics as PCB, but also their ability to accumulate in biological systems and enrich in food chains. In which way they affect humans we really don?t know yet.

Utveckling av substratmixen vid Mosseruds biogasanläggning : Substratkartläggning och rötningsförsök i laboratorieskala

The world?s growing need for energy together with a desire to ward off the worst consequences of global climate change has resulted in a never seen desire to invest resources in renewable energy sources. Biogas production through anaerobic digestion is one of those growing energy sources. In Sweden there are over two hundred plants that uses this biological process to break down organic substances while producing carbon dioxide and the energy-rich gas methane.This master?s thesis has focused on development of the mixture of different organic substances that is treated at a specific plant, namely Mosserud biogas plant.

Påverkan av probiotika på kariesbildande bakterier in vivo

Abstract Cavities used to be a very common problem but over time humans have learned to take care of their teeth. However, there are still many who have problems. This problem is due to microorganisms and in particular the various streptococci and lactobacilli producing acids which loosens up the enamel on teeth. These bacteria can be found at various places in the mouth and saliva. Besides being a discomfort it can be a major problems and the damaged tooth needs to be removed or make a dental filling. The aim of the study was to see how intake of probiotic tablets containing Lactobacillus reuteri PTA ATCC 5289 and Lactobacillus reuteri DSM 17938 affects the levels of oral Streptococcus mutans and lactobacilli over a three-week period.

Karaktärisering av äpplesorter : för framställning av juice och cider

The purpose of this study was to evaluate which apple cultivars are best suited for production of juice and cider. The study was limited to 41 cultivars. Common as well as uncommon apple cultivars were selected from available cultivars in the cold storage at Balsgård, Department of Horticultural Plant Breeding and Biotechnology, SLU.The practical part of the study consisted of the apples being pressed, and then the juice characteristics being assessed by appropriate criteria and methods of analysis. The analyses consisted of measurment of soluble sugars with a refractometer (Brix), titration of total acidity, determination of total phenolic content with a spectrophotometer, estimation of alcohol content by density meters and qualitative taste tests.The study did not account for different maturity of cultivars. Different apple cultivars were pressed on separate occasions, before and after Christmas 2010.

Böklåda med torv på rastgårdsytan i ekologisk slaktsvinsproduktion : effekter på beteende och emission av kväve (NH3 och N2O)

In organic animal production, synthetic amino acids are not allowed. Therefore, a higher level of crude protein is needed in the diet to pigs, which lead to more nitrogen (N) excreted in the faeces and urine. N can be emitted to the air in the form of e.g. ammonia (NH3), which contributes to eutrophication and acidification and as nitrous oxide (N2O), which is a very potent greenhouse gas. The emission of N can be reduced by e.g.

Användarvänlighet i blötutfodring : enkätstudie för smågrisproducenter

It is possible to affect the feed costs in different ways. By steeping or fermentation the digestibility of the feed is improved for the animals with a natural process in the wet feeding system Steeping means that the feed is soaked some hours before feeding. This process activatesenzymes and improves the digestibility of for example phosphorus in the feed and make it more accessible to the animal. Wet feeding can be fermented or not. Fermentationmeans that the feed has been soaked for a certain length of time so that a biological process is started.

Utfodring i finmaskiga hönät : hästens ättid och skötarens arbetsmiljö

Horses are by nature herbivores, specialized on grass, and graze during the main part of the day. The horse has neither changed this basic behaviour nor the function of gastro-intestinal tract, when the horse was domesticated by man. A horse on pasture has an even production of saliva and gastric acids. The buffering effect of the saliva makes the pH in the stomach above four throughout most of the day. With abnormal long breaks of eating, the pH may decrease, causing an increased risk of gastric ulcer.

Inverkan av ensilagets partikelstorlek på beteende och beteendestörningar hos mjölkraskvigor :

Modern milk production have come a long way when it comes to accommodating the nutritional and physiological needs of the animals, but unfortunately the behavioural and psychological needs of cows and heifers are often left unfulfilled. A long time for eating is beneficial for the digestion and also gives the cattle something to do and decreases the risks for developing abnormal behaviours. An important factor that influences eating- and ruminating time is the particle size of the roughage. The aim of the study was to find out if particle size influences the behaviour of dairy heifers, in particular with regard to eating behaviour and abnormal behaviours. The study was conducted at Uddetorp farm high school in Skara. Forty-two heifers of the breeds SR and SF were housed in 8 slatted floor pens.

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