| 1. |
- Stedt, Kristoffer, 1991, et al.
(författare)
-
Post-harvest cultivation with seafood process waters improves protein levels of Ulva fenestrata while retaining important food sensory attributes
- 2022
-
Ingår i: Frontiers in Marine Science. - : Frontiers Media SA. - 2296-7745.
-
Tidskriftsartikel (refereegranskat)abstract
- Seaweed aquaculture can provide the growing human population with a sustainable source of proteins. Sea-based cultivation is an effective method for farming seaweeds on a large scale and can yield high biomass output. However, the quality and biochemical composition of the biomass is seasonally dependent, which limits the harvests to certain periods of the year. Here we show the possibility to extend the sea-based cultivation season of Ulva fenestrata when aiming for high protein levels, by post-harvest treatment in herring production process waters. We harvested U. fenestrata at an optimal period in terms of yield, but suboptimal in terms of protein content. We then cultivated the seaweed in onshore tank systems with the nutrient-rich process waters for 14 days. We monitored biomass yield, crude protein content, amino acid composition, and content of the health concerning metals arsenic, mercury, lead, and cadmium, as well as the sensory properties of the dried biomass. After cultivation in the process waters, biomass yields were 30 - 40% higher (210 – 230 g fresh weight) compared to in seawater (160 g fresh weight). Also, the crude protein and amino acid content increased three to five times in the process waters, reaching 12 - 17 and 15 – 21% dry weight, respectively. The protein enriched biomass followed food graded standards for heavy metal content, and consumption of the biomass does not exceed health based reference points. Additionally, no sensory attributes regarded as negative were found. This rapid, post-harvest treatment can help extend the cultivation season of sea-based seaweed farms, maximizing their output of sustainable proteins.
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
- Jourdain, Elsa, et al.
(författare)
-
Influenza Virus in a Natural Host, the Mallard : Experimental Infection Data
- 2010
-
Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 5:1
-
Tidskriftsartikel (refereegranskat)abstract
- Wild waterfowl, particularly dabbling ducks such as mallards (Anas platyrhynchos), are considered the main reservoir of low-pathogenic avian influenza viruses (LPAIVs). They carry viruses that may evolve and become highly pathogenic for poultry or zoonotic. Understanding the ecology of LPAIVs in these natural hosts is therefore essential. We assessed the clinical response, viral shedding and antibody production of juvenile mallards after intra-esophageal inoculation of two LPAIV subtypes previously isolated from wild congeners. Six ducks, equipped with data loggers that continually monitored body temperature, heart rate and activity, were successively inoculated with an H7N7 LPAI isolate (day 0), the same H7N7 isolate again (day 21) and an H5N2 LPAI isolate (day 35). After the first H7N7 inoculation, the ducks remained alert with no modification of heart rate or activity. However, body temperature transiently increased in four individuals, suggesting that LPAIV strains may have minor clinical effects on their natural hosts. The excretion patterns observed after both reinoculations differed strongly from those observed after the primary H7N7 inoculation, suggesting that not only homosubtypic but also heterosubtypic immunity exist. Our study suggests that LPAI infection has minor clinically measurable effects on mallards and that mallard ducks are able to mount immunological responses protective against heterologous infections. Because the transmission dynamics of LPAIVs in wild populations is greatly influenced by individual susceptibility and herd immunity, these findings are of high importance. Our study also shows the relevance of using telemetry to monitor disease in animals.
|
|
| 5. |
- Järhult, Josef D., et al.
(författare)
-
Environmental levels of the antiviral oseltamivir induce development of resistance mutation H274Y in influenza A/H1N1 virus in mallards
- 2011
-
Ingår i: PLOS ONE. - San Francisco, CA : Public Library of Science (PLoS). - 1932-6203. ; 6:9
-
Tidskriftsartikel (refereegranskat)abstract
- Oseltamivir (Tamiflu®) is the most widely used drug against influenza infections and is extensively stockpiled worldwide as part of pandemic preparedness plans. However, resistance is a growing problem and in 2008-2009, seasonal human influenza A/H1N1 virus strains in most parts of the world carried the mutation H274Y in the neuraminidase gene which causes resistance to the drug. The active metabolite of oseltamivir, oseltamivir carboxylate (OC), is poorly degraded in sewage treatment plants and surface water and has been detected in aquatic environments where the natural influenza reservoir, dabbling ducks, can be exposed to the substance. To assess if resistance can develop under these circumstances, we infected mallards with influenza A/H1N1 virus and exposed the birds to 80 ng/L, 1 µg/L and 80 µg/L of OC through their sole water source. By sequencing the neuraminidase gene from fecal samples, we found that H274Y occurred at 1 µg/L of OC and rapidly dominated the viral population at 80 µg/L. IC₅₀ for OC was increased from 2-4 nM in wild-type viruses to 400-700 nM in H274Y mutants as measured by a neuraminidase inhibition assay. This is consistent with the decrease in sensitivity to OC that has been noted among human clinical isolates carrying H274Y. Environmental OC levels have been measured to 58-293 ng/L during seasonal outbreaks and are expected to reach µg/L-levels during pandemics. Thus, resistance could be induced in influenza viruses circulating among wild ducks. As influenza viruses can cross species barriers, oseltamivir resistance could spread to human-adapted strains with pandemic potential disabling oseltamivir, a cornerstone in pandemic preparedness planning. We propose surveillance in wild birds as a measure to understand the resistance situation in nature and to monitor it over time. Strategies to lower environmental levels of OC include improved sewage treatment and, more importantly, a prudent use of antivirals.
|
|
| 6. |
-
Aktivt åldrande – individuellt anpassade måltidslösningar för hälsa och livskvalitet hos äldre : slutrapport
- 2016
-
Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- In Sweden, as most parts of the world, the proportion of elderly is increasing. Thenumber of the elderly will shortly exceed the number of younger people. Between2010 and 2030, the number of Europeans aged over 65 will rise by nearly 40%.According to the UN, the increase in life expectancy is mainly due toimprovements in nutrition and hygiene. The growing number of older peopleposes major challenges, but also opportunities for society, business andentrepreneurship.Health issues, primarily food, and quality of life are in focus and strongly relatedto autonomy. It should be possible to live an active and independent life, andpossible to make independent choices, regardless of age, disease and disability.This adds to Quality of Life! To achieve this we created a project in collaborationbetween partners from academia, research institutes, business, industry andsociety. The idea was in a first step to identify target groups along with their needsand desires. Then to design foods and meals adapted to the elderly’s needs andpreferences. Further to develop packaging of the meals that can be used forinformation as well as in the distribution chain. The project invented value chainsfor different types of ordering and distribution of the foods and meals as well as toinclude waste management. The outcome of the project are new knowledge aswell as food products available on the market and other products soon ready to beput on the market.
|
|
| 7. |
- Albinsson, Berit, et al.
(författare)
-
Handbook on Sensory Analysis
- 2017
-
Bok (övrigt vetenskapligt/konstnärligt)abstract
- The original of this handbook is the Swedish Handbok i Sensorisk Analys, which wasan updated edition of an older sensory analysis handbook written by Birgit Lundgrenback in 1981. The handbook was revised in 2013 by Berit Albinsson, Karin Wendinand Annika Åström. Both these handbooks were written at SIK – The Swedish Instituteof Food and Bioscience, which is now part of RISE – Research Institutes of Sweden.The revised edition of the handbook has proved popular in both industry and in theteaching world. At university level, it has been used by students as a complement tothe academic literature in sensory science programmes. There has been a growing demandamong international students at Swedish universities for the handbook to betranslated. In 2016, Kristianstad University entered into an agreement with the researchbody RISE to translate the handbook into English. The translation was madeby Patrick O’Malley.The handbook was translated and printed with permission from the co-authors.
|
|
| 8. |
- Berg, Johan, et al.
(författare)
-
State Of The Art report : insects as food and feed
- 2017
-
Ingår i: Annals of Experimental Biology. - 2348-1935. ; 5:2, s. 1-9
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- FAO has considered insects as food since 2003 [1] and is promoting consumption of insects (entomophagy) in the Western world because of the possibilities for sustainable production it offers. Insects as food are considered to leave smaller ecological footprints than conventional livestock (beef, pigs, and poultry) regarding feed, land and water needs, as well as greenhouse gas and ammonia emissions [2-7]. As an example regarding water, taken from a recent TV documentary, if a family of four people got their protein need from insects one day a week instead of from conventional livestock, over a year they would save the planet about a million Liters of water [8]. This is in agreement with figures above.
|
|
| 9. |
- Berg, Johan, et al.
(författare)
-
Äta insekter : finns det några hälsorisker?
- 2019
-
Ingår i: Nutritionsfakta. ; december
-
Tidskriftsartikel (populärvet., debatt m.m.)abstract
- En tidigare publicerad artikel i Nutritionsfakta har visat på hälso- och hållbarhetsfördelar med att äta insekter. Finns det då några hälsorisker med att äta insekter? När det gäller kemiska risker är dessa små, förutsatt att producenten har kontroll på fodrets tungmetallinnehåll. Bakterier och andra mikroorganismer behöver kontrolleras noga, men inga tydliga risker finns här heller. Personer med skaldjursallergier bör dock vara försiktiga med insekter. Generellt motsvarar riskerna de som gäller för andra animaliska livsmedel, och samma typ av kontrollprogram bör finnas. Dock behövs mer forskning inom området. Kött från nöt, svin och fjäderfä har studerats under lång tid; det är dags att låta forskningen kring insekter som mat börja ta igen det försprånget.
|
|
| 10. |
- Biörklund Helgesson, Maria, et al.
(författare)
-
Verksamhetsberättelse Mat- och Måltidsvetenskap 2019
- 2020
-
Rapport (populärvet., debatt m.m.)abstract
- Under året som gått har mycket hänt och vi utvecklas vidare! Denna upplaga av Mat- och måltidsvetenskaps verksamhetsberättelse sammanfattar händelser och utveckling av ämnesområdet vid Högskolan Kristianstad under 2019. Ett år där alla medarbetare på avdelningen bidragit till att arbeta för visionen att vi ska ha en ledande position för framtidens mat och måltider genom attraktiva utbildningar, framgångsrik forskning och aktiv samverkan.
|
|
