| 1. |
- Andersson, Annica, et al.
(författare)
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Effect of Different Extrusion Parameters on Dietary Fiber in Wheat Bran and Rye Bran
- 2017
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Ingår i: Journal of Food Science. - : Wiley. - 0022-1147 .- 1750-3841. ; 82:6, s. 1344-1350
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Tidskriftsartikel (refereegranskat)abstract
- Wheat bran and rye bran are mostly used as animal feed today, but their high content of dietary fiber and bioactive components are beneficial to human health. Increased use of bran as food raw material could therefore be desirable. However, bran mainly contains unextractable dietary fiber and deteriorates the sensory properties of products. Processing by extrusion could increase the extractability of dietary fiber and increase the sensory qualities of bran products. Wheat bran and rye bran were therefore extruded at different levels of moisture content, screw speed and temperature, in order to find the optimal setting for increased extractability of dietary fiber and positive sensory properties. A water content of 24% for wheat bran and 30% for rye bran, a screw speed of 400 rpm, and a temperature of 130 °C resulted in the highest extractability of total dietary fiber and arabinoxylan. Arabinoxylan extractability increased from 5.8% in wheat bran to 9.0% in extruded wheat bran at those settings, and from 14.6% to 19.2% for rye bran. Total contents of dietary fiber and arabinoxylan were not affected by extrusion. Content of β-glucan was also maintained during extrusion, while its molecular weight decreased slightly and extractability increased slightly. Extrusion at these settings is therefore a suitable process for increasing the use of wheat bran and rye bran as a food raw material.
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| 2. |
- Bannak Gedara, Shishanthi Jayarathna, et al.
(författare)
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High fructan barley lines produced by selective breeding may alter beta-glucan and amylopectin molecular structure
- 2023
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Ingår i: Carbohydrate Polymers. - 0144-8617. ; 316
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Tidskriftsartikel (refereegranskat)abstract
- Six cross-bred barley lines developed by a breeding strategy with the target to enhance the fructan synthesis activity and reduce the fructan hydrolysis activity were analyzed together with their parental lines, and a reference line (Gustav) to determine whether the breeding strategy also affected the content and molecular structure of amylopectin and beta-glucan. The highest fructan and beta-glucan content achieved in the novel barley lines was 8.6 % and 12 %, respectively (12.3-fold and 3.2-fold higher than in Gustav). The lines with low fructan synthesis activity had higher starch content, smaller building blocks in amylopectin, and smaller structural units of beta-glucans than the lines with high-fructan synthesis activity. Correlation analysis confirmed that low starch content was associated with high amylose, fructan, and beta-glucan content, and larger building blocks in amylopectin.
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| 5. |
- Ademuyiwa, Adesoji O., et al.
(författare)
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Determinants of morbidity and mortality following emergency abdominal surgery in children in low-income and middle-income countries
- 2016
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Ingår i: BMJ Global Health. - : BMJ Publishing Group Ltd. - 2059-7908. ; 1:4
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Tidskriftsartikel (refereegranskat)abstract
- Background: Child health is a key priority on the global health agenda, yet the provision of essential and emergency surgery in children is patchy in resource-poor regions. This study was aimed to determine the mortality risk for emergency abdominal paediatric surgery in low-income countries globally.Methods: Multicentre, international, prospective, cohort study. Self-selected surgical units performing emergency abdominal surgery submitted prespecified data for consecutive children aged <16 years during a 2-week period between July and December 2014. The United Nation's Human Development Index (HDI) was used to stratify countries. The main outcome measure was 30-day postoperative mortality, analysed by multilevel logistic regression.Results: This study included 1409 patients from 253 centres in 43 countries; 282 children were under 2 years of age. Among them, 265 (18.8%) were from low-HDI, 450 (31.9%) from middle-HDI and 694 (49.3%) from high-HDI countries. The most common operations performed were appendectomy, small bowel resection, pyloromyotomy and correction of intussusception. After adjustment for patient and hospital risk factors, child mortality at 30 days was significantly higher in low-HDI (adjusted OR 7.14 (95% CI 2.52 to 20.23), p<0.001) and middle-HDI (4.42 (1.44 to 13.56), p=0.009) countries compared with high-HDI countries, translating to 40 excess deaths per 1000 procedures performed.Conclusions: Adjusted mortality in children following emergency abdominal surgery may be as high as 7 times greater in low-HDI and middle-HDI countries compared with high-HDI countries. Effective provision of emergency essential surgery should be a key priority for global child health agendas.
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| 6. |
- Alm Fjellborg, Andreas, 1982-
(författare)
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Housing tenure and residential mobility in Stockholm 1990-2014
- 2018
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- In this thesis the links between housing tenure, income and selective, segregation generating, residential mobility are explored. The development of these links is analysed against the background of housing regime changes in Stockholm between 1990 and 2014. Housing policy changes in Sweden, and Stockholm, promote ownership through, for instance, housing tenure conversions and the tax-system. What this development means for residential mobility trends and may mean for ethnic and economic segregation is explored in three articles. Paper 1 contrasts two time periods and provides an analysis of residential mobility and economic sorting. It is shown that the socioeconomic composition of movers is relatively stable over time while the increasingly owner dominated housing market in Stockholm contributes to stronger socio-spatial residential patterns through the strengthened economic sorting of movers across the whole income scale. Paper 2 has a focus on ethnic and socioeconomic differences in out-mobility from poor neighbourhoods. The findings indicate that foreign background residents are dependent upon housing wealth and income to be able to leave poor neighbourhoods when they move, while the Swedish background group has a variety of resources at their disposal when they move. Paper 3 analyses how housing tenure affects moving, and movers' destinations, in neighbourhoods with high concentrations of non-western foreign-born residents in Stockholm. By comparing two cohorts (1993-2000 and 2001-2008) it is analysed how this relationship develops over time. Housing tenure and income do not seem to be pivotal for who moves, but increasingly important for where movers end up. Results display ethnic differences and how the changing housing market in Stockholm reproduces ethnic segregation. Two main conclusions from the thesis are that (i) the changing housing regime in Stockholm produces stronger economic sorting of movers – this has been affected by the geographically, socioeconomically and ethnically uneven gains from the housing market transformations experienced over the last three decades. (ii) The residential mobility patterns and the economic stratification of residential mobility opportunities that the reconfiguration of Stockholm’s housing market gives rise to increases the economic, political and social marginalization of neighbourhoods characterized by low income levels and high shares of foreign-born residents. Combating ethnic segregation is today even more closely related to the socioeconomic differences between the foreign-born and native-born parts of the population.
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| 8. |
- Andersson, Annica, et al.
(författare)
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Lignin is the main determinant of total dietary fiber differences between date fruit (Phoenix dactylifera L.) varieties
- 2020
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Ingår i: NFS Journal. - : Elsevier BV. - 2352-3646. ; 21, s. 16-21
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Tidskriftsartikel (refereegranskat)abstract
- Date fruits (Phoenix dactylifera) of ten varieties, collected in the United Arab Emirates, were studied to determine their dietary fiber content and composition. Fourier transform infrared (FTIR) spectroscopy indicated that the dietary fiber components in all the date fruit varieties was similar. The major dietary fiber components, including cellulose, hemicellulosic components, lignin, and pectin, were analyzed by the Uppsala method. The total dietary fiber content in the date fruits analyzed (5.2%–8.3%) is comparable to commonly consumed dried fruits and is correlated with the content of lignin. The lignin was the main determinant of the total dietary fiber content in dates and its content was higher in semi-hard and hard fruit varieties.
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| 9. |
- Andersson, Annica, et al.
(författare)
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Relationship of grain fructan content to degree of polymerisation in different barleys
- 2014
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Ingår i: Food and Nutrition Sciences. - : Scientific Research Publishing, Inc.. - 2157-944X .- 2157-9458. ; 5, s. 581-589
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Tidskriftsartikel (refereegranskat)abstract
- Fructans are important in the survival of plants and also valuable for humans as potentially health promoting food ingredients. In this study fructan content and composition were determined in grains of 20 barley breeding lines and cultivars with a wide variation in chemical composition, morphology and country of origin, grown at one site in Chile. There was significant genotypic variation in grain fructan content ranging from 0.9% to 4.2% of grain dry weight. Fructan degree of polymerisation (DP) was analysed using high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD). Changes in the distribution of different chain lengths and the pattern of structures of fructan were detected with increasing amount of fructan in the different barleys. A positive correlation was found between fructan content and the relative amount of long chain fructan (DP > 9) (r = 0.54, p = 0.021). Our results provide a basis for selecting promising barley lines and cultivars for further research on fructan in barley breeding with the aim to produce healthy food products.
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| 10. |
- Andersson, Annica, et al.
(författare)
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Rye dietary fibre
- 2014
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Ingår i: Rye and health. - 9781891127816 ; , s. 23-47
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Bokkapitel (refereegranskat)
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