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  • 251.
    Arvola, Sandra
    et al.
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    Liedgren, Hanna
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    En vegetariska dag i veckan: En studie som utvärderar gymnasieelevers inställning till och efterfrågan av vegetarisk skollunch, samt deras upplevda delaktighet kring skollunchen i en skola i Umeå kommun.2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background Meat consumption increased in Sweden between the years 2000-2010 with 20 % per capita. Meanwhile, there are recommendations from the Swedish National Food Agency to reduce intake from charcuteries and red meat, as well as to increase intake of vegetables and pulses.

    Objective The purpose of this study was to evaluate Umeå municipality’s project: “A vegetarian day once a week”, through assessing upper secondary school pupil’s attitudes to and perceived demand of vegetarian school lunch as well as their participation at mealtimes at a school in Umeå.

    Method A questionnaire was designed in the program esMakerNX2. The questionnaire was distributed through mail and as a paper-based version in an upper secondary school in the municipality of Umeå, during the spring of 2014. Convenience sampling was used. Data collected were analyzed in IBM SPSS Statistics 21 with a significance level of p<0,05.

    Results A total of 122 pupils participated, 68 girls and 54 boys. About half of the participants, 51 % (n=62), ate every time when only the vegetarian meal alternative was offered. Girls chose the vegetarian meal alternative more often than boys (p<0,001). Almost half of the pupils, 48 % (n=28), chose the vegetarian meal primarily because of the good taste. Results even showed that 14 % (n=17) ate vegetarian meals more often since the start of the project, whilst 9 % (n=10) ate less often.

    Conclusion The pupils had different opinions about vegetarian meals in school. Almost half of the pupils chose not to eat when the lunch served was exclusively vegetarian. The interest of vegetarian food was stronger among girls than boys. A few upper secondary school pupils were influenced by the project to eat more vegetarian food, which shows that changing people ́s meal patterns is a big task where more knowledge and work is needed. 

  • 252.
    Aschemann-Witzel, J.
    et al.
    Aarhus Univ., Aarhus, Denmark.
    de Hooge, I.
    Wageningen Univ., Wageningen, Netherlands.
    Normann, A.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Food and Bioscience, Flavour.
    Consumer-Related Food Waste: Role of Food Marketing and Retailers and Potential for Action2016In: Journal of International Food and Agribusiness MarketingArticle in journal (Refereed)
    Abstract [en]

    Food waste has received increasing attention in recent years. As part of their corporate social responsibility strategies, food supply chain actors have started to act towards avoiding and reducing food waste. Based on a literature review, an expert interview study, and example cases, we discuss food marketing and the role and responsibility of retail. Food marketing and retailing contribute to consumer-related food waste via decisions on date labeling, packaging sizes and design elements, and pricing strategies encouraging overpurchase, as well as communication shifting consumer priorities to the disadvantage of food waste avoidance. Potential actions to tackle food waste relate to improved packaging and information, altering pricing strategies, and cooperation with other actors across the supply chain. Three cases highlight the extent to which moral and strategic motives are interlinked and that there are opportunities for competitive advantage through corporate social responsibility and a business case for sustainability in the area of food waste. 2016 Copyright

  • 253.
    Aspholme, Carita
    et al.
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    Persson, Evelina
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    Svensson, Nina
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    "Har ni något överhuvudtaget som jag kan äta?": Att ha ett barn med dubbeldiagnosen celiaki-diabetes: föräldrars upplevelser av kosten.2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background The prevalence of both coeliac disease and diabetes type I in the pediatric population varies between 2.4-16.4 %. Both diseases demand a strictly controlled diet A limited number of studies are investigating the practical implementation of the two diets. Objective To investigate parent’s experiences of the diet, when having a child with both coeliac disease and diabetes type I. Method A qualitative method was used in form of narratives, collected through a web based form. The informants consisted of 26 parents, having a child of age 3-16 years, diagnosed with both coeliac disease and diabetes type I. Qualitative content analysis was used to analyze the narratives. Result Difficulties were experienced by the informants considering the practical implementation of the two diets. The double diagnosis demanded frequent planning. Lack of knowledge in the surroundings was experienced, for example in staff at school and restaurants. The possibilities of saving time and money were limited and there were limitations also in the food supply, especially gluten-free products with low glycemic index. Due to experience of inconvenience and negative treatment from their surroundings, the feelings of being different were enhanced. Conclusion Difficulties in trusting others knowledge regarding the diet lead to compliance issues and put restraint to the children’s social life. Perceptions of lack of treatment and understanding in the surroundings could enhance the feeling of not being like everyone else and being a nuisance. A need for education aimed at staff in schools and restaurants exists to increase knowledge and understanding. More materials regarding cooking with the double-diagnosis are desirable. Constant planning lead to limitations in the daily life and the parenting role became more controlling, which could create difficulties when guiding the child into independence. Also the supply of gluten-free products with low glycemic index is limited and need further development.

  • 254. Augustin, K
    et al.
    Frank, J
    Augustin, S
    Langguth, P
    Öhrvik, V
    Witthöft, Cornelia M.
    Sveriges lantbruksuniversitet, Uppsala.
    Rimbach, G
    Wolffram, S
    Green tea extracts lower serum folates in rats at very high dietary concentrations only and do not affect plasma folates in a human pilot study.2009In: Journal of Physiology and Pharmacology, ISSN 0867-5910, E-ISSN 1899-1505, Vol. 60, no 3, p. 103-108Article in journal (Refereed)
    Abstract [en]

    Green tea catechins (GTC) have been shown to inhibit the activities of enzymes involved in folate uptake. Hence, regular green tea drinkers may be at risk of impaired folate status. The present experiments aimed at studying the impact of dietary GTC on folate concentrations and metabolism. In a human pilot study (parallel design) healthy men consumed for 3 weeks 6 capsules (approximately 670 mg GTC) per day (2 capsules with each principal meal) containing aqueous extracts of the leaves of Camellia sinensis (n=17) or placebo (n=16). No differences in plasma folate concentrations were observed between treatments. We further fed groups of 10 male rats diets fortified with 0, 0.05, 0.5, 1, or 5 g GTC/kg for 6 weeks. Only at the highest intake, GTC significantly decreased serum 5-methyl-tetrahydrofolate concentrations in rats, while mRNA concentrations of reduced folate carrier, proton-coupled folate transporter/heme carrier protein 1, and dihydrofolate reductase (DHFR) remained unchanged in intestinal mucosa. Using an in vitro enzyme activity assay, we observed a time- and dose-dependent inhibition of DHFR activity by epigallocatechin gallate and a green tea extract. Our data suggest that regular green tea consumption is unlikely to impair folate status in healthy males, despite the DHFR inhibitory activity of GTC.

  • 255.
    Augustsson, Maria
    et al.
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    Berglund, Ida-Karin
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    Vegankost eller blandkost?: En jämförelse av näringsintag, livsmedelsval och måltidsmönster hos förskolebarn som äter vegankost och blandkost.2012Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: The discussions and studies on vegan diet for children are many and with diverged opinions and results. The negative views, where the risks of deficiencies in the diet is in focus often dominates. Many studies show that if the most common pitfalls are avoided the growth of vegan children is normal. Today, the debate often focus on the risks of giving children a vegan diet, while the unbalanced mixed diet is easily forgotten. The latest national study of children´s dietary habits in Sweden (2003), reported a satisfactory distribution of protein, fat and carbohydrates, while the type of fat and carbohydrates consumed were of bad quality.

    Objective: The aim of this study was to investigate the nutritional intake, food choice and meal patterns among vegan and omnivore preschool children. The study also investigated whether the nutrient intake was consistent with the recommendations by the National Food Agency (NFA).

    Method: A quantitative method was used where a three-day estimated dietary registration of twelve children was performed, where half of the children were vegans and the other half omnivores. 

    Results: Children who ate a vegan diet consumed more fruit and vegetables, fibers and had a higher energy intake. The difference on the intake of fruit and vegetables was not significantly. The omnivores had a higher intake of sugar, salt and saturated fat, with a significant difference for the latter two. The vegan children had consistently a higher mean value of all nutrients with the exception of selenium and B12. The difference was only significant for the intake of vitamin C. Both groups had a satisfactory meal patterns.

    Conclusion: The vegan children had an intake more in accordance with the NFA recommendations than the omnivore children, indicating highly motivated and knowledgeable parents of the children who ate a vegan diet. 

  • 256.
    Axelsson, Cecilia
    Umeå University, Faculty of Social Sciences, Department of Food and Nutrition.
    Whole grain intake in adolescents assessed by the web-based dietary assessment method Riksmaten flex – a validation study2016Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Background During the year 2016-2017 the Swedish national food agency will perform a national dietary survey focusing on adolescents. In the work with the survey a new web based dietary assessment method, Riksmaten flex was developed. The current study was a part of the pilot study prior to the main survey.

    Objective To validate the reported intake of whole grains from Riksmaten flex against 24-hour recalls and alkylresorcinols as a biomarker of whole grain intake from wheat and rye.

    Method A crossover study was performed on adolescents, from elementary schools grade five and eight together with high school second graders, from different regions of Sweden. A total of 78 participants conducted two days of both dietary assessment methods and left blood samples for non-fasting plasma alkyresorcinol homologues to be analyzed.

    Results The intake from whole grains and whole grains from wheat and rye was 3.0 respectively 1.0 in the 24-hour recalls and 3.5 respectively 1.1 in Riksmaten flex. Spearman’s correlation coefficient between non-fasting plasma total alkylresorcinols and whole grains from wheat and rye was 0.36 for Riksmaten flex. Furthermore single and multiple regression models showed significant associations between the energy adjusted intake of whole grains from wheat and rye (g/MJ) and total alkylresorcinols in Riksmaten flex (p<0.01).

    Conclusion A significant correlation was seen between the reported intake of whole grains from wheat and rye in Riksmaten flex and the 24-hour recalls. A significant correlation was furthermore seen between the intake of whole grains from wheat and rye in Riksmaten flex and non-fasting plasma alkylresorcinol homologue levels. The correlation between the methods was weak but the overall result from this study suggests that Riksmaten flex captures the whole grain intake from wheat and rye in a valid way and can be used to assess this intake in Swedish adolescents.

  • 257. Ayer, N.W.
    et al.
    Tyedmers, P.H.
    Pelletier, N.L.
    Sonesson, Ulf
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Institutet för livsmedel och bioteknik.
    Scholz, A.
    Co-product allocation in life cycle assessments of seafood production systems: Review of problems and strategies2007In: The International Journal of Life Cycle Assessment, ISSN 0948-3349, E-ISSN 1614-7502, Vol. 12, no 7, p. 480-487Article in journal (Refereed)
    Abstract [en]

    Background, Aim and Scope. As Life Cycle Assessment is being increasingly applied to study fisheries and aquaculture systems, the LCA methodology must be adapted to address the unique aspects of these systems. The focus of this methodological paper is the specific allocation problems faced in studying seafood production systems and how they have been addressed to date. Main Features. The paper begins with a literature review of existing LCA research of fishing and aquaculture systems with a specific focus on 1) identifying the key allocation problems; 2) describing the choice of allocation procedures; and 3) providing insight on the rationale for those choices where available. The allocation procedures are then discussed in the context of ISO recommendations and other published guidance on allocation, followed by a discussion of the key lessons to be learned from the reviewed studies and recommendations for future LCAs of seafood production systems. Literature Review. The literature review suggests that allocation problems are most likely to arise when dealing with: landed by-catch within the context of capture fisheries, the use of co-product feed ingredients in aquaculture feeds, multiple outputs from fish farms, and the generation of by-products when seafood is processed. System expansion and allocation according to physical causality were not applied in most cases, while economic allocation was the most widely used approach. It was also observed that the level of detail and justification provided for allocation decisions in most published reports was inconsistent and incomplete. Discussion. The results of this literature review are consistent with other reviews of allocation in LCA in that allocation according to economic value was found to be the most frequently applied approach. The application of economic allocation when system expansion is not feasible is consistent with ISO guidance. However, economic allocation is not the most appropriate method in seafood production LCAs because it does not reflect the biophysical flows of material and energy between the inputs and outputs of the production system. Conclusions, Recommendations and Perspectives. More effort needs to be invested in developing allocation procedures appropriate to seafood production systems. Allocation based on gross energy content is proposed as one potential alternative means of allocating environmental burdens in some instances in seafood production LCAs. A standard set of requirements for how to describe and justify allocation decisions in published reports is needed to make these studies more robust and transparent. © 2007 ecorried publishers (Verlagsgruppe Hüthig Jehle Rehm GmbH).

  • 258. Backman, A.
    et al.
    Lantz, P.-G.
    Radstrom, P.
    Olcen, P.
    Evaluation of an extended diagnostic PCR assay for detection and verification of the common causes of bacterial meningitis in CSF and other biological samples1999In: Molecular and Cellular Probes, ISSN 0890-8508, E-ISSN 1096-1194, Vol. 13, no 1, p. 49-60Article in journal (Refereed)
    Abstract [en]

    A seminested polymerase chain reaction (PCR)-based diagnostic assay was evaluated for detection and verification of Neisseria meningitidis, Haemophilus influenzae, Streptococcus pneumoniae, Steptococcus agalactiae and Listeria monocytogenes in cerebrospinal fluid (CSF) and other biological samples. A general bacterial amplicon from the 16S rRNA gene was amplified in a first step, and species-specific regions in a second. The detection level was 4 fg DNA/reaction, corresponding to about one bacterial genome per reaction tube. Sample preparations (Dynabeads DNA DIRECT kit) were assayed from 140 bacterial strains suspended in saline. In CSF the detection level for bacteria was 103 CFU ml-1 for N. meningitidis, H. influenzae and S. pneumoniae, 104 CFU ml-1 for Escherichia coli and 105 CFU ml-1 for S. agalactiae and L. monocytogenes. The detection levels for these bacteria were the same in the other tested biological samples, like blood with or without culture media. Clinical CSF samples were evaluated from 71 patients with proven bacterial meningitis, as were 61 CSF samples from individuals without bacterial meningitis. The diagnostic sensitivity of the assay in detecting bacteria in general was 0.97, and for the specific species in the clinical CSF samples 0.87-0.94. The specificity was 1.0 for detecting bacteria in general. Some cross-reactions were noted within the streptococcus group. The PCR results were verified by banding patterns of HaeIII digested PCR products.

  • 259. Baden, S.
    et al.
    Emanuelsson, Andreas
    SIK – Institutet för livsmedel och bioteknik.
    Pihl, L.
    Svensson, C.-J.
    Aberg, P.
    Shift in seagrass food web structure over decades is linked to overfishing2012In: Marine Ecology Progress Series, ISSN 0171-8630, E-ISSN 1616-1599, Vol. 451, p. 61-73Article in journal (Refereed)
    Abstract [en]

    Empirical field studies in seagrass have revealed that overgrowth by filamentous algae which reduces seagrass growth can be explained by a top-down cascading effect caused by declines in top predators, which is enforced by eutrophication. On the Swedish west coast, 60% of the seagrass has disappeared since the 1980s. We hypothesised that overfishing, responsible for a >90% decline in the cod stock, and the 4 to 8 times increase in nutrient load since the 1930s have altered the seagrass structure and function during recent decades. We used quantitative samples from the 1980s and 2000s and analysed the trends in abundance of the 4 feeding guilds: top predatory fish, intermediate predatory fish, crustacean omnivores and mesoherbivores. Since the 1980s, the commercial catch of gadoids on the Swedish west coast has decreased by >90%, and here we found that the biomass of top predators (gadoids and trout) that forage in seagrass has decreased by approximately 80%. In contrast, the biomass of intermediate predatory fish (gobids and sticklebacks) has increased 8 times during summer and 11 times during autumn, while mesoherbivores (idoteids and gammarids >7 mm) have more or less disappeared from the seagrass bed. We thus found clear evidence that a shift in seagrass food web structure has taken place over the last 3 decades. Combining these findings with our recent empirical results from field cage experiments in the Skagerrak seagrass, where we manipulate top-down and bottom-up regulation, we conclude that lack of grazers in concert with eutrophication most likely contributed to the overgrowth by filamentous algae and disappearance of the seagrass on the Swedish west coast. © Inter-Research 2012.

  • 260. Barling, D.
    et al.
    De Vriend, H.
    Cornelese, J.A.
    Ekstrand, Bo
    SIK – Institutet för livsmedel och bioteknik.
    Hecker, E.F.F.
    Howlett, J.
    The social aspects of food biotechnology: A European view1999In: Environmental Toxicology and Pharmacology, ISSN 1382-6689, E-ISSN 1872-7077, Vol. 7, no 2, p. 85-93Article in journal (Refereed)
    Abstract [en]

    The application of the modern biotechnology to food, notably through the use of GM, has raised concern amongst the European public. Values that underlie this public concern about food biotechnology, include perceptions of: trust, choice, need, and care for a sustainable society and natural balance. Recommendations are advocated for addressing these social aspects, in terms of improving consumer choice, promoting greater public involvement in decision making and achieving a sustainable society. A model of risk analysis for genetically modified organisms (GMOs) and genetically modified food that incorporates this social dimension, through the integration of risk analysis with a social impact analysis is proposed, in order to build greater popular trust into the decision making processes. Copyright (C) 1999 Elsevier Science B.V.

  • 261.
    Barr, U-K
    SIK – Institutet för livsmedel och bioteknik.
    Lean för biodlare : slutrapport2011Report (Refereed)
  • 262.
    Barr, Ulla-Karin
    et al.
    SIK – Institutet för livsmedel och bioteknik.
    Merkel, H.
    Surface penetrating radar2004In: Detecting Foreign Bodies in Food, p. 172-192Article in journal (Refereed)
  • 263.
    Barr, Ulla-Karin
    et al.
    SIK – Institutet för livsmedel och bioteknik.
    Merkel, H.F.
    Microwaves lead the way for food radar detection.2003In: New Food, no 2, p. 46-49Article in journal (Other academic)
  • 264. Barreto, C.
    et al.
    Altskär, Annika
    SIK – Institutet för livsmedel och bioteknik.
    Fredriksen, S.
    Hansen, E.
    Rychwalski, R.W.
    Multiwall carbon nanotube/PPC composites: Preparation, structural analysis and thermal stability2013In: European Polymer Journal, ISSN 0014-3057, E-ISSN 1873-1945, Vol. 49, no 8, p. 2149-2161Article in journal (Refereed)
    Abstract [en]

    The focus of this report concerns the preparation nanocomposites from poly(propylene carbonate) (PPC) and multiwall carbon nanotubes (MWNTs). A solvent route using tetrahydrofuran, ethoxylated non- ionic surfactants combined with sonication was found to be successful in deagglomerating and dispersing the nanotubes. Transmission electron microscopy revealed highly disentangled and dispersed nanotubes and was supported by the qualitative stability evaluations. The morphology and molecular mobility of the prepared nanocomposites (0.5, 3.0 and 5.0 wt% of nanotubes) were characterized by rheology, microscopy, low-field solid-state nuclear magnetic resonance, and electrical conductivity. The networking of nanotubes was highest with a stearyl alcohol ethoxylate surfactant, and was found to improve with the sonication time. Nanotube percolation was established, both rheologically and electrically, from a filler content of approximately 0.5 wt%. A higher tendency toward particle agglomeration was observed at higher MWNT loadings. Only minor changes in the glass transition temperature were measured presumably due to the presence of solvent and surfactant residues. The thermal stability was marginally improved by increasing the loading and dispersion of the nanotubes, and appeared to be modified by solvent and surfactant residues. © 2013 Elsevier Ltd. All rights reserved.

  • 265. Beckel, R.
    et al.
    Lundgren, Birgit
    Hall, Gunnar
    SIK – Svenska livmedelsinstitutet.
    Waller, G.R.
    Effect of Maillard reaction products on the stability of minced herring in frozen storage.1985In: Journal of Food Science, Vol. 50, no 2, p. 501-502Article in journal (Refereed)
  • 266.
    Becker, Wulf
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Fetter2006In: Näringslära för högskolan, Liber AB, Stockholm , 2006, p. 460-Chapter in book (Other (popular scientific, debate etc.))
  • 267.
    Becker, Wulf
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Livsmedelskonsumtion och kostvanor i Sverige - utvecklingstrender2006In: Näringslära för högskolan, Liber AB, Stockholm , 2006, p. 460-Chapter in book (Other (popular scientific, debate etc.))
  • 268.
    Becker, Wulf
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Näringsrekommendationer2006In: Näringslära för högskolan, Liber AB, Stockholm , 2006, p. 460-Chapter in book (Other (popular scientific, debate etc.))
  • 269.
    Becker, Wulf
    et al.
    Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Public Health and Caring Sciences.
    Håglin, Lena
    Aschan-Åberg, Karin
    Mineralämnen2006In: Näringslära för högskolan, Liber AB, Stockholm , 2006, p. 460-Chapter in book (Other (popular scientific, debate etc.))
  • 270.
    Beck-Friis, Johan
    et al.
    Svensk Veterinärtidning.
    Danielsson-Tham, Marie-Louise (intervjuobjekt)
    Örebro University, School of Hospitality, Culinary Arts & Meal Science.
    ISOPOL XV – internationellt listeriasymposium i Uppsala2004Report (Other (popular science, discussion, etc.))
  • 271.
    Beck-Friis, Johan
    et al.
    Sveriges veterinärförbund.
    Danielsson-Tham, Marie-Louise (intervjuobjekt)
    Örebro University, School of Hospitality, Culinary Arts & Meal Science.
    Salmonella: en smitta att ta på allvar2004In: Svensk veterinärtidning, ISSN 0346-2250, Vol. 56, no 10, p. 33-34Article in journal (Refereed)
  • 272.
    Bengtsson, A
    SIK – Svenska institutet för konserveringsforskning.
    Organoleptisk bedömning av några bestrålade "stilldrinkar" och fruktjuicer1962Report (Refereed)
  • 273.
    Bengtsson, A
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Strålbehandling av fiskprodukter1962Report (Refereed)
  • 274. Bengtsson, A.
    et al.
    Quednau, M.
    Haska, G.
    Nilzen, P.
    Persson, A.
    Composting of oily sludges - degradation, stabilized residues, volatiles and microbial activity1998In: Waste Management & Research, ISSN 0734-242X, E-ISSN 1096-3669, Vol. 16, no 3, p. 273-284Article in journal (Refereed)
    Abstract [en]

    Process residuals, sludge with high oil content, were treated by composting. In lab-scale (100 litre) trials initial oil concentrations (30 to 50 g kg-1 dry matter) were, depending on composting conditions, reduced 55 to 90% during a period of 60 to 120 days. Besides carbon dioxide, a significant amount of oil was converted to stabilized residuals. A minor volatile fraction (5%) evaporated. High numbers (approximately 1 x 108 per gram dry compost) of oil degrading bacteria were detected during the high rate phases. Genetic fingerprinting (randomly amplified polymorphic DNA (RAPD) indicated groups of related and potentially interesting isolates from these periods. RAPD also indicated that successions of the microflora took place over time. Initial oil contents (40 to 80 g kg-1 dry compost) in outdoor pilot composts (15,000 to 20,000 kg), were reduced 86 to 94% in 10 months. Prolonged treatment (5 months) resulted in further decreases, in total a 95 to 97% reduction. In spite of increased biological activity, neither the addition of organic (manure) nor inorganic (nitrogen, phosphorus and potassium) nutrients increased the speed or amount of oil degraded during the prolonged treatment. Among potentially hazardous organics, elevated levels of polyaromatic hydrocarbons were found in the original oily sludge. Composting with adequate substrate reduced most of them. With proper considerations, composting is suggested as a cost and treatment-effective way of handling these sludges.

  • 275.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    5:e Frystorkningssymposiet i Köln 27-28 februari 19621962Report (Refereed)
  • 276.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    9:e Europeiska köttforskarmötet i Budapest1963Report (Refereed)
  • 277.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Analys av huvudkomponenter i livsmedel : seminarium 7 december 19781979Report (Refereed)
  • 278.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Benefits available to members of the Foundation for Swedish food preservation research1972Report (Refereed)
  • 279.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Biokemiskt storskalelaboratorium vid SIK. En presentation.1978Report (Refereed)
  • 280.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Bröddag : sammanfattning av seminarium på SIK den 4 april 19791979Report (Refereed)
  • 281.
    Bengtsson, N
    SIK – Svenska livmedelsinstitutet.
    Current results from research at SIK on frozen convenience foods and on temperature distribution in foods in the freezer chain1975Report (Refereed)
  • 282.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Dielektrisk värmning inom livsmedelstekniken: Mätning av livsmedels dielektriska egenskaper samt försök med upptining och pastörisering1971Report (Refereed)
  • 283.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Electronic defrosting of frozen fish1965Report (Refereed)
  • 284.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Engineering aspects of the current practice of freeze-drying in Europe1967Report (Refereed)
  • 285.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Extrusion-cooking of food. Seminar held at SIK - The Swedish Food Institute. Gothenburg, Sweden on January 21, 1981.1981Report (Refereed)
  • 286.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Fjärde Internationella frystorkningskurserna i Lyon 20-29 juli 19641964Report (Refereed)
  • 287.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Forskning för bättre kvalitet.1979Report (Refereed)
  • 288.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Frysning av finstyckat, rått nötkött1969Report (Refereed)
  • 289.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Frysning med flytande kväve : färsk potatis1966Report (Refereed)
  • 290.
    Bengtsson, N
    SIK – Svenska institutet för konserveringsforskning.
    Frysning med flytande kväve : ägg och äggprodukter1966Report (Refereed)
  • 291.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Frystorkning - metod och framtid1965Report (Refereed)
  • 292.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Frystorkning av kokt nötkött : inverkan av några förbehandlingsvariabler1965Report (Refereed)
  • 293.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Frystorkning av livsmedel i USA och Kanada1963Report (Refereed)
  • 294.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Frystorkning av rått nötkött : en litteratursammanställning1965Report (Refereed)
  • 295.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska institutet för konserveringsforskning.
    Frystorkning, mikrovågsvärmning och kvävefrysning i USA : några intryck från en resa sommaren 19671967Report (Refereed)
  • 296.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Glutenprojektet - ökad användning av gluten : slutrapport till Nordisk industrifond 19821983Report (Refereed)
  • 297.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Institutet för livsmedelsforskning.
    Guidelines för dielektriska värmningsförsök1995Report (Refereed)
  • 298.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Har hemmen den matlagningsapparatur de förtjänar? Några synpunkter på dagens köksutrustning.1979Report (Refereed)
  • 299.
    Bengtsson, N
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Svenska livmedelsinstitutet.
    Hur färskt är färskt? : djupfryst, färskvaror, kylda och konserverade produkter1981Report (Refereed)
  • 300.
    Bengtsson, N
    SIK – Svenska livmedelsinstitutet.
    Hållbarhet och hållbarhetsmärkning : seminarium på Interfoodmässan 16 oktober, 1980 [Göteborg]19801980Report (Refereed)
3456789 251 - 300 of 2942
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