Browsing NOFIMA vitenarkiv by Author "Næs, Tormod"
Now showing items 21-40 of 69
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Development of enzyme cocktails for complete saccharification of chitin using mono-component enzymes from Serratia marcescens
Mekasha, Sophanit; Byman, Ida Roksvåg; Lynch, Catherine; Toupalová, Hana; Andera, Ladislav; Næs, Tormod; Vaaje-Kolstad, Gustav; Eijsink, Vincentius Gerardus Henricus (Peer reviewed; Journal article, 2017)One potential strategy for biorefining of chitin-rich biomass entails enzymatic saccharification, which, so far, has been scarcely explored. Here, saccharification of chitin was explored using response surface methodology ... -
Diagnosing indirect relationships in multivariate calibration models
Eskildsen, Carl Emil Aae; Engelsen, Søren B.; Dankel, Elin Katinka; Solberg, Lars Erik; Næs, Tormod (Peer reviewed; Journal article, 2021)Problems concerning covariance among independent variables are well understood and dealt with by inverse regression methods like partial least squares regression. However, covariance between dependent variables has only ... -
Different liking but similar healthiness perceptions of rye bread among younger and older consumers in Sweden
Sandvik, Pernilla; Nydahl, Margaretha; Marklinder, Ingela; Næs, Tormod; Kihlberg, Iwona (Journal article; Peer reviewed, 2017)Rye breads, especially those with a chewy texture and sour flavor, have shown several health benefits but their consumption is lower among younger consumers than older. This study explores liking of commercial rye bread ... -
Discriminability and uncertainty in principal component analysis (PCA) of temporal check-all-that-apply (TCATA) data
Castura, J.C.; Rutledge, D.N.; Ross, C.F.; Næs, Tormod (Journal article; Peer reviewed, 2022)Temporal check-all-that-apply (TCATA) data can be summarized and explored using principal component analysis (PCA). Here we analyze TCATA data on Syrah wines obtained from a trained sensory panel. We evaluate new and ... -
Effects of evoked meal contexts on consumers’ responses to intrinsic and extrinsic product attributes in dry-cured ham
Hersleth, Margrethe; Monteleone, Erminio; Segtnan, Anne; Næs, Tormod (Peer reviewed; Journal article, 2015) -
Effects of evoked meal contexts on consumers’ responses to intrinsic and extrinsic product attributes in dry-cured ham
Hersleth, Margrethe; Monteleone, Erminio; Segtnan, Anne; Næs, Tormod (Peer reviewed; Journal article, 2015) -
Evaluation of complementary numerical and visual approaches for investigating pairwise comparisons after principal component analysis
Castura, John C.; Varela, Paula; Næs, Tormod (Peer reviewed; Journal article, 2023)We propose and evaluate numerical and visual methods for investigating paired comparisons after principal component analysis (PCA). PCA results can be visualized to facilitate an understanding of the relationships between ... -
Exploring the common and unique variability in TDS and TCATA data – A comparison using canonical correlation and orthogonalization.
Berget, Ingunn; Castura, John; Ares, Gaston; Næs, Tormod; Varela, Paula (Journal article; Peer reviewed, 2020)Temporal Dominance of Sensations (TDS) and Temporal Check-all-that-Apply (TCATA) from three different case studies are compared by means of canonical correlation analysis, orthogonalization and principal component analysis ... -
Extension of SO-PLS to multi-way arrays: SO-N-PLS
Biancolillo, Alessandra; Næs, Tormod; Bro, Rasmus; Måge, Ingrid (Journal article; Peer reviewed, 2017)Multi-way data arrays are becoming more common in several fields of science. For instance, analytical instruments can sometimes collect signals at different modes simultaneously, as e.g. fluorescence and LC/GC-MS. Higher ... -
hoggorm: a python library for explorative multivariate statistics
Tomic, Oliver; Graff, Thomas; Liland, Kristian Hovde; Næs, Tormod (Peer reviewed; Journal article, 2019) -
How children approach a CATA test influences the outcome. Insights on ticking styles from two case studies with 6–9-year old children
Galler, Martina; Næs, Tormod; L. Almli, Valérie; Varela, Paula (Peer reviewed; Journal article, 2020)Due to its simplicity, Check-all-that-apply (CATA) is a promising method for consumer studies with children to generate sensory and other descriptions of samples, and to find their drivers of liking. This paper explores ... -
How good are ideas identified by an automatic idea detection system?
Christensen, Kasper Knoblauch; Scholderer, Joachim; Hersleth, Stine Alm; Næs, Tormod; Kvaal, Knut; Mollestad, Torulf; Veflen, Nina; Risvik, Einar (Journal article; Peer reviewed, 2018) -
Influence of consumers' cognitive style on results from projective mapping
Varela, Paula; Antúnez, Lucía; Berget, Ingunn; Oliveira, Denize; Christensen, Kasper; Vidal, Leticia; Næs, Tormod; Ares, Gastón (Journal article; Peer reviewed, 2017)Projective mapping (PM), one of the most holistic product profiling methods in approach, is increasingly being used to uncover consumers' perception of products and packages. Assessors rely on a process of synthesis for ... -
The influence of label information on the snacks parents choose for their children: Individual differences in a choice based conjoint test
Velázquez, Ana Laura; Alcaire, Florencia; Vidal, Leticia; Varela, Paula; Næs, Tormod; Ares, Gastón (Journal article; Peer reviewed, 2021)Labels have been reported to influence children's perception and choice of foods. However, the influence of label information on parents’ food choices for their children has not received as much attention in the literature ... -
Interpretation, validation and segmentation of preference mapping models
Endrizzi, Isabella; Gasperi, Flavia; Rødbotten, Marit; Næs, Tormod (Peer reviewed; Journal article, 2014)In this paper we discuss an extension to preference mapping of the method proposed in [Endrizzi, I., Menichelli, E., Johansen, S. B., Olsen, N. V., & Næs, T. (2011). Handling of individual differences in rating- based ... -
Investigating individual preferences in rating and ranking conjoint experiments. A case study on semi-hard cheese
Almli, Valerie Lengard; Øvrum, Arnstein; Hersleth, Margrethe; Almøy, Trygve; Næs, Tormod (Peer reviewed; Journal article, 2015)Stated preference conjoint experiments and self-explicated measures based on rating and ranking approaches were conducted to investigate Norwegian consumers’ choices among healthier and organically produced semi-hard ... -
Investigating paired comparisons after principal component analysis
Castura, J.C.; Varela, Paula; Næs, Tormod (Journal article; Peer reviewed, 2023) -
Making sense of multiple distance matrices through common and distinct components
Solberg, Lars Erik; Dahl, Tobias Gulden; Næs, Tormod (Peer reviewed; Journal article, 2021)Multiblock analysis attacks the problem of how to combine data from various data sources for purposes such as prediction, classification, clustering, or visual data analysis. A key concept is the distinction between “common” ... -
Making sense of the “clean label” trends: A review of consumer food choice behavior and discussion of industry implications
Asioli, Daniele; Aschemann-Witzel, Jessica; Caputo, Vincenzina; Vicchio, Riccardo; Annunziata, Azzurra; Næs, Tormod; Varela, Paula (Journal article; Peer reviewed, 2017)Consumers in industrialized countries are nowadays much more interested in information about the production methods and components of the food products that they eat, than they had been 50 years ago. Some production methods ... -
Maternal psychological responses during pregnancy after ultrasonographic detection of structural fetal anomalies: A prospective longitudinal observational study
Kaasen, Anne; Helbig, Anne; Malt, Ulrik Fredrik; Skari, Hans; Næs, Tormod; Haugen, Guttorm (Peer reviewed; Journal article, 2017)