| 1. |
- Rothenberg, Elisabet, et al.
(författare)
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Texture-modified meat and carrot products for elderly people with dysphagia : preference in relation to health and oral status
- 2007
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Ingår i: Scandinavian Journal of Food and Nutrition. - : Taylor & Francis. - 1748-2976 .- 1748-2984. ; 51:4, s. 141-147
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Tidskriftsartikel (refereegranskat)abstract
- Background: Reduced taste and smell, chewing problems and swallowing dysfunction are common among elderly people and affect perception, food choice and the ability to eat. Objective: To study the preference for texture-modified carrot and meat products in elderly people aiming to meet the needs of people with impaired chewing and/or swallowing. Design: Data were collected using questionnaires focusing on health, oral status and preference for the products. Altogether, 108 elderly people in ordinary housing (OH) and 50 living in special housing (SH) in Malmö (SH-M) and Göteborg (SH-G) participated. Results: 19% had a body mass index 522, predominantly in SH (24%). Stroke was reported by 20% of the subjects in SH. Among those with subjectively experienced difficulties in swallowing (12%), 58% reported coughing, 21% a gurgly voice in association with food intake and 50% obstruction during swallowing. Only 20% with subjective swallowing difficulties had been specifically examined regarding this problem. All the tested products were easy to masticate and swallow. Compared with OH, people in SH-M found the meatproducts easier to masticate and swallow. Compared with OH, subjects in SH found the carrot products easier to masticate. Conclusions: There is a need to develop tasty texture-modified nutritious food products for people with mastication and/or swallowing problems. Possible factors for differences in preference between groups, in this study OH and SH, may be related to health status in general and specifically mastication and swallowing functions.
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| 2. |
- Wendin, Karin, 1963-, et al.
(författare)
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Dynamic analyses of sensory and microstructural properties of cream cheese
- 2000
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Ingår i: Food Chemistry. - 0308-8146 .- 1873-7072. ; 71:3, s. 363-378
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Tidskriftsartikel (refereegranskat)abstract
- Flavour and texture in cream cheese depend on the microstructure. The objective of this work was to study the influence of fat content, salt content and homogenisation pressure on the microstructure and sensory properties of cream cheese. Twelve types of cream cheese were produced according to a full-factorial design, whereby the fat content was set at three levels, the salt content at two levels and the homogenisation pressure at two levels. The cheeses were analysed by a sensory panel, using both quantitative descriptive profiling and time intensity (T1) evaluation, and by using a confocal laser scanning microscope, CLSM, whereby the microstructure of the cheeses was analysed. All the design parameters had a significant influence on the flavour and texture, although fat had the largest effect. Interaction effects between the design parameters were also found to influence the character of cream cheese. The results showed that it is possible to create a cream cheese with lower fat content and with sensory attributes similar to the attributes in cream cheese with high fat content, by modification of production parameters.
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| 3. |
- Hall, Gunnar, et al.
(författare)
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Sensory design of foods for the elderly
- 2008
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Ingår i: Annals of Nutrition and Metabolism. - 0250-6807 .- 1421-9697. ; 52, s. 25-28
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Tidskriftsartikel (refereegranskat)abstract
- Background/Aims: Elderly persons with dysphagia need food that requires little or no chewing, that is easy to swallow and has attractive sensory characteristics. The aim was to investigate how ingredients varied according to experimental designs influence the perceived sensory, chewing and swallowing characteristics of two types of texture-modified model foods. Methods: Meat- and carrot-based, texture-modified model foods were produced. The following parameters were varied: particle size, fat content, starch and egg composition. The samples were studied using sensory analyses, focus group discussions and consumer studies. Results: The design parameters mainly had an impact on sensory texture attributes. The experts in the focus groups selected three products of each type which were regarded as being optimal for older persons. All the products contained a high proportion of egg yolk and a low amount of starch. Older consumers considered all the selected products to be easy to chew and swallow. The differences between older persons in nursing homes compared to those living in their own homes could be linked to health. Conclusions: Optimization of factors influencing food quality through the use of experimental designs in combination with sensory and consumer studies is required in order to meet the needs and demands of older people.
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| 4. |
- Holmer, A, et al.
(författare)
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Acceptance of Nordic snack bars in children aged 8-11 years
- 2012
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Ingår i: Food & Nutrition Research. - 1654-6628 .- 1654-661X. ; 56:10484
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Tidskriftsartikel (refereegranskat)abstract
- Background: A health promoting diet is suggested to be tailored to regional circumstances to preserve the cultural diversity in eating habits, as well as contribute to more environmentally friendly eating. It may influence consumer acceptance, however, if the components of the diet differs considerably from their habitual food. Objective: This study aimed to investigate whether snack bars composed of Nordic ingredients were accepted by 8-11 year-old Danish (n=134) and Swedish (n=109) children. Design: A seven-point hedonic scale was used to measure the children’s acceptance of five snack bars that varied in their composition of whole grains, berries and nuts. A preference rank ordering of the five bars was also performed. Results: The results showed that samples that were rated highest in liking and were most preferred in both countries were a kamut/pumpkin bar and an oat/cranberry bar. The sample with the lowest rating that was also least preferred was a pumpernickel/sea buckthorn bar. Flavour was the most important determinant of overall liking followed by texture, odour and appearance. Conclusions: Children’s acceptances and preferences were highly influenced by the sensory characteristics of the bars, mainly flavour. In agreement with earlier studies, the novel food ingredients seemed to influence children’s preferences. The Nordic snack bars may have a potential to be a snack option for Danish and Swedish school children, but repeated exposures to the products are recommended to increase children’s acceptance.
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| 5. |
- Janestad, H, et al.
(författare)
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Modelling of dynamic flavour properties with ordinary differential equations
- 2000
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Ingår i: Food Quality and Preference. - 0950-3293 .- 1873-6343. ; 11:4, s. 323-329
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Tidskriftsartikel (refereegranskat)abstract
- The most common way to analyse sensory dynamic measurements (time-intensity, TI) is to extract some characteristic parameters from the resulting curve such as 'intensity maximum' and 'area under the curve'. In order to get more information from TI data, a general mathematical model was developed. The model was based on the theory for ordinary differential equations. The solutions were characterised by their eigenvalues, which might be correlated to recipe and process. As an example, the temporal perception of chocolate flavour has been measured and modelled. In addition the classical characteristic TI parameters could easily be calculated by the model.
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| 6. |
- Marklinder, Ingela, et al.
(författare)
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Food safety knowledge, sources thereof and self-reported behaviour among university students in Sweden
- 2020
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Ingår i: Food Control. - : Elsevier. - 0956-7135 .- 1873-7129. ; 113
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Tidskriftsartikel (refereegranskat)abstract
- International studies have noted shortcomings in food safety knowledge and behaviour among university students. In general students do not constitute a pronounced risk group but there are wider implications. In a foreseeable future some of them will become pregnant and a majority will be responsible for vulnerable groups in their near environment. A crucial question exists, therefore, about their food safety knowledge and safe food handling practices. The aim of this study is to investigate food safety knowledge, sources thereof and self-reported food safety behavior among university students in Sweden. A quantitative study design using a web-based questionnaire was chosen as the data collection method. The questionnaire was distributed through social media and e-mail. Among the 606 respondents from 24 Swedish universities 80% were 18-30 years and 78% were women. The average number of correct answers on the knowledge questions was 7.61 out of 12 (63.4%). The foremost source of food safety knowledge was "Family and friends" (45%). Just 21.1% reported Food safety education as a source, although 35.6% had experience of a course in food hygiene/safety and/or microbiology. Respondents who reported "Family and friends" to be the foremost food safety source of knowledge also got a significantly lower rate of correct answers. Students who estimated their food safety knowledge to be good also had more correct answers. Experience of food safety education at secondary school/university/working place/polytechnic school significantly correlated with more correct answers on the knowledge questions and indicated a safer self-reported behaviour. Those with fewer correct answers also reported more unfavourable behaviours. The present study indicates that education promotes more optimal behaviors. The authors would suggest a more systematic food safety education at younger ages.
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| 7. |
- Undeland, I, et al.
(författare)
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Preventing lipid oxidation during recovery of functional proteins from herring (Clupea harengus) fillets by an acid solubilization process
- 2005
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Ingår i: Journal of Agricultural and Food Chemistry. - 0021-8561 .- 1520-5118. ; 53:14, s. 5625-5634
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Tidskriftsartikel (refereegranskat)abstract
- It has previously been found that a process based on solubilization at pH 2.7 gives high yields of herring muscle proteins with good functionality. In this study, the development of lipid oxidation during acid processing of herring mince was studied. It was tested how modifications of the process conditions and/or additions of antioxidants could prevent lipid oxidation during the actual process and then during ice storage of the protein isolates. Processing parameters evaluated were prewash of the mince, exposure time to pH 2.7, inclusion or exclusion of a high-speed centrifugation, and addition of antioxidants. Antioxidants tested were erythorbate (0.2%, 9.3 mM), sodium tripolyphosphate (STPP; 0.2%, 5.4 mM), ethylenediaminetetraacetic acid (EDTA; 0.044%, 1.5 mM), and milk proteins (4%). The first three antioxidants were added in the prewash or during the homogenization step, whereas milk proteins were added to the final precipitate. At time 0, all isolates were analyzed for pH, moisture content, and thiobarbituric reactive substances (TBARS). Selected isolates were also analyzed for lipid and protein content. Stability during ice storage was followed in terms of odor, TBARS, and color (a*/b* values). Extensive lipid oxidation took place using the "control" process without high-speed centrifugation. This was not significantly (p <= 0.05) affected by a prewash or varied exposure time to pH 2.7. Including high-speed centrifugation (20 min, 10000g) significantly (p <= 0.05) reduced TBARS values, total lipids, a* values and b* values. Erythorbate alone, or in combination with STPP/EDTA, significantly (p <= 0.05) reduced lipid oxidation during processing if added in the prewash or homogenization step. During ice storage, better stability was gained when antioxidants were added in both of these steps and when EDTA was used instead of STPP.
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| 8. |
- Wendin, Karin, 1963-, et al.
(författare)
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Do facial reactions add new dimensions to measuring sensory responses to basic tastes?
- 2011
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Ingår i: Food Quality and Preference. - 0950-3293 .- 1873-6343. ; 22:4, s. 346-354
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Tidskriftsartikel (refereegranskat)abstract
- Basic taste solutions induce sensory perceptions via taste receptors and give rise to specific facial reactions. Many of these have been shown to be innate. The aim of this study was to explore relationships between the sensory perception of basic taste solutions at different concentrations and facial reactions. Basic taste solutions each at three levels plus water were served to a panel. The assessors individually identified quality, intensity and pleasantness. They were recorded during tasting and their facial reactions (based on FACS) were coded and analysed. Facial reactions indicated both quality and concentration of the stimuli. The intensity of most facial reactions increased with increasing stimulus concentration, most pronounced for sourness (lips) and bitterness (eyes and forehead). Pleasantness ratings decreased with increasing concentrations of all basic tastes. Water and the lowest sucrose concentration were perceived as the most pleasant samples and gave rise to the lowest intensity of facial reactions. The study showed that a combination of sensory analyses and facial expressions was successful in adding further insight to the knowledge of perception of basic tastes.
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| 9. |
- Wendin, Karin, 1963-, et al.
(författare)
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Influences of fat, thickener and emulsifier contents on salad dressing : Static and dynamic sensory and rheological analyses
- 2001
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Ingår i: Lebensmittel-Wissenschaft + Technologie. - 0023-6438 .- 1096-1127. ; 34:4, s. 222-233
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Tidskriftsartikel (refereegranskat)abstract
- The effects of contents of fat, thickener and emulsifier in salad dressing were investigated. Twelve types of dressings were produced according to a full factorial design, whereby the fat content was set at three levels, the thickener and the emulsifier contents at vivo levels. The dressings were analysed by a sensory panel, using both quantitative descriptive profiling and time-intensity (TI) evaluation, and by instrumental/rheological measurements. The two sensory methods were related to each other and the instrumental results were related to tire sensory results. All design parameters had a significant influence on the properties of salad dressing, mainly on texture and mouthfeel. Fat content was the most influencing parameter. Inter-action effects were found and it can he concluded that the content of the emulsifier was less critical when the fat and thickener contents increased Dynamic and descriptive sensory analyses,ere mainly related to each other in the fattiness attribute. There were strong relations between instrumental and sensory analysis according to rheological and texture attributes, /r/ greater than or equal to 0.7 (Pearson correlation coefficient)for most texture attributes.
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| 10. |
- Wendin, Karin, 1963-, et al.
(författare)
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Modelling and analysis of dynamic sensory data
- 2003
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Ingår i: Food Quality and Preference. - 0950-3293 .- 1873-6343. ; 14:8, s. 663-671
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Tidskriftsartikel (refereegranskat)abstract
- Time intensity (TI) data from earlier reported studies on cream cheese and salad dressing were used to develop models based on both polynomials and ordinary differential equations (ODE) that can be used to describe and interpret TI-data. Polynomials were thus fitted to experimental data. By taking the first and second derivatives of the polynomials one gets new polynomials that express how the perceived intensity changes with time. By integrating the original polynomial one gets a new polynomial that expresses how the classical TI-parameter "Area Under the Curve" is accumulated with time. Graphical display of all these types of polynomials gives an immediate and easily interpretable impression of the influence of different experimental factors on the time dependent perception. In the ODE models experimental factors, both formula and process conditions, were taken into account. Thus it was possible to develop equations that can be used for prediction of TI-curves for intermediate experimental settings.
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