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411 Uppsatser om Organic acids - Sida 15 av 28
Smaksatt proteinberikad havredryck : en vegetabilisk dryck fri från allergener
Det kommer ständigt nya studier med olika hälsoråd angående kosten och fysiskaktivitet om hur vi ska undvika fetma, högt blodtryck samt hjärt- och kärlsjukdomar.Intresset av proteinets effekt på uppbyggnad av muskelmassa vid fysisk aktivitet harökat. Detta har medfört ett stort urval av olika drycker med proteintillskott påmarknaden, främst ur animaliskt ursprung.Syftet med detta examensarbete var att ta fram en vegetabilisk proteinberikadhavredryck som förväntas hjälpa kroppen vid återhämtning. Arbetet innebar att utvecklaett recept baserat på de Nordiska Näringsrekommendationer 2004 (NNR) med fokus påprotein, kolhydrater och fett. Delmålet var även att utesluta allergener. Dryckenbaserades på ett medelvärde från de fysiskt aktiva och äldre människors näringsbehov,detta för att bredda den tilltänkta dryckens målgrupp.Fyra smaksatta drycker framställdes med olika energiinnehåll utifrån två olikahavredrycker, en naturell och en kalciumberikad.
Evaluation of Lactobacillus reuteri DSM17938 as starter in cheese production
The probiotic bacteria Lactobacillus reuteri DSM17938 was evaluated as a starter culture in cheese production, with the intention to produce a new interesting product within the functional food market. Growth and acidification rate in milk subjected to different heat treatments, as well as supplementation with growth promoting factors or support cultures was measured during controlled fermentations. The results showed that the weak proteolytic activity of L. reuteri could be compensated for by supplementation with 1% casamino acids or 5% MRS broth. Furthermore, a decrease in growth and acidification rate could be seen when using yoghurt culture or Lactobacillus delbrueckii as adjunct cultures.
Varför handla svenskt kött? : en konsumentundersökning
The background to the work bases on the consumers view around Swedish and foreign meat products, and how the attitude around the meat products is pursued in the shops.
The consumers request high meat quality and security . Many consumers value local produced and ecological meat products but the price is too high.
We have done verbal interviews with consumers on three different shops, where we asked questions and had dialogues around Swedish meat products where the consumers have told us their arguments and opinions about Swedish and foreign meat.
The result shows that the majority of consumers consider that it is important to know that meat is produce in Sweden.
Glycerol to dairy calves : effects on intestinal health and fluid balance
The bacterium Lactobacillus reuteri, which natural habitat is in the intestine of mammals and birds, uses glycerol as a substrate for production of the antimicrobial compound reuterin. Glycerol has been shown to decrease the number of Escherichia coli in human feces and it is believed to be due to in situ production of reuterin. E. coli belongs to the large family of Enterobacteriaceae, naturally occurring in the intestine, and pathogenic strains of E. coli have been shown to be one of several bacteria causing diarrhoea in calves.
Peas as feed for dairy cows
AbstractAn approaching overproduction of cereals and a future uncertain supply of non genetic modified vegetable protein feedstuffs have increased the interest in an expansion of the domestic production of protein feedstuffs in Norway. Besides rapeseed (Brassica campestris), peas (Pisum sativum) may be the most suitable crop for this purpose. Peas are characterized by having a relatively high content of crude protein, ranging between 20-26%, a high content of starch, 42-51%, and a low content of fat. In general, the energy value for peas is higher than for barley but lower than for rapeseed and soybean meal.Pea protein consists of albumins and globulins to 85-100%, which leads to the fact that a large part of the pea protein is soluble and degradable in the rumen. Starch in peas is on the other hand to a large extent resistant to rumen degradation compared to starch from other starch rich feedstuffs.
Ammoniakförluster vid flytgödselhantering : myllning och surgörning som metoder för att minska avgång vid spridning
The ammonia emissions are an environmental issue since they contribute to eutrophication. By far the largest source of ammonia emissions is manure from agriculture and should therefore be reduced. Loss of ammonia is not only negative for the environment but also to the farmer who loses nitrogen that could have been used by the crop.
The focus of this study has been emissions from spreading slurry where the loss can vary widely
depending on slurry-, soil-, and weather conditions.
There are mainly two different ways to reduce the emissions. One is to inject or mix the slurry into the ground to avoid air contact. The other way is to use acid to reduce the pH in the slurry to a level between 5 and 6 where the equilibrium is so strongly pushed to NH4+ that hardly any NH3 can be lost.
Arbetsprestation, samarbete och sammanhållning i påfrestande arbetsmiljöer: en fallstudie inom beroendevård
Stress is commonly found in society today. This paper aims to examine how work performance, cooperation and team spirit are maintained in demanding work environments. By studying two departments in a public hospital that practises addiction care, our findings suggest the following: If the experienced stress is mainly connected to challenge stressors, it has a positive effect on work performance. By organising work through mechanistic and organic structure, the handling of qualitative and quantitative stress is facilitated. As a consequence, first and foremost cooperation can be maintained, but also work performance and team spirit.
Kvävemineralisering från stallgödsel beroende på olika grad av inblandning i mark
The impact of the distribution in the soil volume of two farm manures on the net mineralization and immobilization processes of nitrogen were studied in an incubation experiment. Cattle slurry and broiler litter were placed in the soil with three procedures for incorporation including placement on top of the soil (TOP), in the middle of the soil (MID) and mixed homogenously with the soil (MIX). During the two weeks of incubation, few significant differences in net mineralization were seen between TOP, MID and MIX. However, there was a tendency that MIX led to a larger net immobilization of N than placement at one point (TOP and MID). This is also the result in the literature.
Rolf Edberg : En studie av ett miljöfilosofiskt författarskap
In this essay I have tried to present the ideas and thoughts of the Swedish author Rolf Edberg (1912-1997), journalist, ambassador and county governor. By many regarded as an environment philosopher and the introducer of deep ecology into Sweden. The essay emphasizes Edberg as a modern renaissance man of important knowledge with a rhetorical force to present and generalize the problems the planet Earth is meeting. The paper compares him with Henry Thoreau but also finds a close but perhaps unintended relationship with the German philosopher Ernst Haeckel although Edberg himself claimed to be a Darwinist at heart.The essay stresses on four characteristic features in his authorship namely 1) a holistic view of nature and man, rejecting dualism for monism; 2) a cosmic relationship within the whole universe and also between organic and inorganic matter; 3) the planet Earth is in a crisis due to an uneven and unjust distribution of the resources of the Earth, the nuclear weapon threat and the overpopulation; 4) the evolution and not the religion has the answer to our existential questions..
Slam ? en outnyttjad resurs i skogsbruket
Every year about 210 000 tones dry weight of sewage sludge is produced in Sweden. Most of the sludge is applied to agricultural land, plantsoil and landfill cover. Sewage sludge contains essential nutrients such as nitrogen and phosphorus. Nitrogen is limiting growth on solid ground in Sweden and can therefore be used as fertilizer to increase productivity. In order that the sludge can be spread to forest land it requires first a conversion of sludge to pellets, to make it more manageable.
En litteraturstudie om effekten av omega-3 och omega-6 på torra ögon
Syftet med arbetet var att sammanställa vad som tidigare har skrivits om de essentiella fettsyrorna och huruvida de har effekt på ögats främre delar, framför allt på det torra ögat.Denna litteraturstudie har genomförts med hjälp av artiklar som hittats på PubMed och Google Scholar, med hjälp av sökord såsom ?nutrition, dry eye, omega-3 och fatty acids?,men även med hjälp av andra artiklars referenslistor. Artiklarna har sedan sammanställts tilldetta arbete.Efter sammanställning av artiklarna är det möjligt att skönja en mildrande effekt av omega-6 fettsyror på symtom på torra ögon och även en ökning av tårproduktionen. Även omega-3 fettsyror tycks ha dessa egenskaper och kan därför hjälpa det torra ögat. Dock tycks en högre omega-6:omega-3 ? kvot leda till en ökad risk för torra ögon, vilket faktiskt till viss del motsäger resultatet att omega-6 fettsyror fungerar förbättrande för torra ögon.
Allanblackia stuhlmannii ? a tree under current domestication: what are the soil requirements?
Allanblackia is a genus of trees that grows in the rainforests of West, Central and Eastern Africa. Its big fruits contain seeds very rich in oil which has been used by
local communities for cooking and making soaps. The native stands are threatened by overexploitation and the demand for the oil is much greater than the supply.
Domestication programs, aiming at introducing the trees to small holder agroforestry systems, have been started for some of the species. The main aim of this study was to investigate the soil requirements of Allanblackia
stuhlmannii in terms of chemical and physical parameters, as revealed by the soil conditions in native stands. Another aim was to see if these varied along an altitudinal transect.
Kartering av markföroreningar inom Skutskärs Bruk samt utvärdering av spridningsrisker enligt Naturvårdsverkets MIFO fas 2
With the prospect of future construction on the Skutskär Pulp Mill property, Stora Enso Fine Paper has initiated an investigation of soil contaminants and a risk assessment of these contaminants. A soil and groundwater investigation has therefore been conducted on an open area of about 16 000 square meters, situated between the current wood room and digester house. To be able to integrate this study into an investigation for the whole industrial property, the study has been carried out as a phase 2 study according to the Swedish Environmental Protection Agency?s Methods of Inventories of Contaminated sites (MIFO).The site investigation has involved soil and groundwater sampling, together with the analysis of heavy metals and organic contaminants. The degree of hazard posed by the contaminants, the level of contamination, the potential for migration of the contaminants, as well as the degree to which protection of human health and the environment is required in the area, have been weighed together for an overall risk assessment of the area with regard to human health and the environment.The investigated area was built up by filling in the coastal waters.
Eu:s jordbrukspolitik sett ur perspektivet ekologisk hållbar utveckling i Sverige
The aim of this essay is to give the reader an idea of how the European agricultural policies have developed, in regard of sustainable development, since Sweden became a member in the union 1995. The main aspect that?s been investigated is the issues regarding sustainable development and how the issues regarding the ecological farming methods have been dealt with. My research questions are:- How has the European environment- and agricultural politics changed since Swedenjoined the union in 1995?- What consequences have the changes had for ecological farming?The answers to the stated questions are that there have been several treaties in the field of environmental development of the agricultural policy, starting with the Maastricht treaty and ends up with the European Action Plan for Organic Food and Farming.
Glycerol till mjölkkor : effekter på våmmetabolismen
Glycerol is essential for the lipid metabolism of both plants and animals. Glycerol is formed in the rumen by hydrolysis of lipids from the feed. Glycerol is also a by-product from the production of biodiesel from rapeseed oil and other fat sources. Glycerol might be used as a dietary glucose precursor for dairy cows in similar ways as propylene glycol. Due to increased production of biodiesel more glycerol has been available to a lower price.