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The effect of genotypical and phenotypical variation in taste sensitivity on liking of ice cream and dietary fat intake. Food Qual Prefer 2017. [DOI: 10.1016/j.foodqual.2016.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Drink Red: Phenolic Composition of Red Fruit Juices and Their Sensorial Acceptance. BEVERAGES 2016. [DOI: 10.3390/beverages2040029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Lipides et comportement alimentaire chez les enfants. CAHIERS DE NUTRITION ET DE DIÉTÉTIQUE 2016. [DOI: 10.1016/j.cnd.2016.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhou X, Shen Y, Parker JK, Kennedy OB, Methven L. Relative Effects of Sensory Modalities and Importance of Fatty Acid Sensitivity on Fat Perception in a Real Food Model. CHEMOSENS PERCEPT 2016; 9:105-119. [PMID: 27594969 PMCID: PMC4989022 DOI: 10.1007/s12078-016-9211-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 06/01/2016] [Indexed: 12/17/2022]
Abstract
INTRODUCTION Fat can be perceived through mouthfeel, odour and taste, but the influence of these modalities on fat perception remains undefined. Fatty acids are stimuli and individual sensitivity to fatty acids varies. Studies show association between fatty acid sensitivity, dietary intake and BMI, but results are conflicting. Therefore, this study examined this association, and the effect of modalities on fat perception. METHODS Two sub-studies were conducted. In study 1 (n = 46), fat intensity was assessed by milk/cream mixtures varying by five fat levels. Fat intensity was rated under four conditions: mouthfeel odour-masked, mouthfeel-masked, odour masked and with no masking. Mouthfeel masking was achieved using thickener and paraffin, odour masking using nose-clips. Fatty acid sensitivity was measured by 3-AFC staircase method using milk containing oleic acid (0.31-31.4 mM). In study 2 (n = 51), more fat levels were added into the intensity rating. A 2-AFC discrimination test was used to confirm whether fat levels could be distinguished. In the sensitivity test, a wider range of oleic acid was included. RESULTS Fat intensity was rated higher without nose clips (p < 0.0001), implying that odour increased fat perception. Mouthfeel-masked samples were rated higher, showing that increased viscosity and lubricity enhanced fat perception (p < 0.0001). Participants could distinguish fat levels based on "taste" in rating tests and 2-AFC tests. Participants were divided into high-/medium-/low-sensitivity groups. No significant difference was found in fat intensity between groups; however, the high-sensitivity group discriminated more fat levels. No association between sensitivity groups, nutrient intake or BMI was found. CONCLUSION Mouthfeel and odour can enhance fat perception. Fat level can be discriminated based on taste.
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Affiliation(s)
- Xirui Zhou
- Sensory Centre, Department of Food and Nutritional Sciences, The University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP UK
| | - Yuchi Shen
- Sensory Centre, Department of Food and Nutritional Sciences, The University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP UK
| | - Jane K Parker
- Flavour Centre, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
| | - Orla B Kennedy
- Hugh Sinclair Human Nutrition Unit, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
| | - Lisa Methven
- Sensory Centre, Department of Food and Nutritional Sciences, The University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP UK
- Department of Food and Nutritional Sciences, The University of Reading, PO Box 226, Whiteknights, Reading, RG6 6AP UK
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Colditz IG, Hine BC. Resilience in farm animals: biology, management, breeding and implications for animal welfare. ANIMAL PRODUCTION SCIENCE 2016. [DOI: 10.1071/an15297] [Citation(s) in RCA: 118] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A capacity for the animal to recover quickly from the impact of physical and social stressors and disease challenges is likely to improve evolutionary fitness of wild species and welfare and performance of farm animals. Salience and valence of stimuli sensed through neurosensors, chemosensors and immunosensors are perceived and integrated centrally to generate emotions and engage physiological, behavioural, immune, cognitive and morphological responses that defend against noxious challenges. These responses can be refined through experience to provide anticipatory and learned reactions at lower cost than innate less-specific reactions. Influences of behaviour type, coping style, and affective state and the relationships between immune responsiveness, disease resistance and resilience are reviewed. We define resilience as the capacity of animals to cope with short-term perturbations in their environment and return rapidly to their pre-challenge status. It is manifested in response to episodic, sporadic or situation-specific attributes of the environment and can be optimised via facultative learning by the individual. It is a comparative measure of differences between individuals in the outcomes that follow exposure to potentially adverse situations. In contrast, robustness is the capacity to maintain productivity in a wide range of environments without compromising reproduction, health and wellbeing. Robustness is manifested in response to persistent or cyclical attributes of the environment and is effected via activity of innate regulatory pathways. We suggest that for farm animals, husbandry practices that incorporate physical and social stressors and interactions with humans such as weaning, change of housing, and introduction to the milking parlour can be used to characterise resilience phenotypes. In these settings, resilience is likely to be more readily identified through the rate of return of variables to pre-challenge or normal status rather than through measuring the activity of diverse stress response and adaptation mechanisms. Our strategy for phenotyping resilience of sheep and cattle during weaning is described. Opportunities are examined to increase resilience through genetic selection and through improved management practices that provide emotional and cognitive enrichment and stress inoculation.
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McCrickerd K, Forde CG. Sensory influences on food intake control: moving beyond palatability. Obes Rev 2016; 17:18-29. [PMID: 26662879 DOI: 10.1111/obr.12340] [Citation(s) in RCA: 206] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Revised: 09/24/2015] [Accepted: 09/25/2015] [Indexed: 12/18/2022]
Abstract
The sensory experience of eating is an important determinant of food intake control, often attributed to the positive hedonic response associated with certain sensory cues. However, palatability is just one aspect of the sensory experience. Sensory cues based on a food's sight, smell, taste and texture are operational before, during and after an eating event. The focus of this review is to look beyond palatability and highlight recent advances in our understanding of how certain sensory characteristics can be used to promote better energy intake control. We consider the role of visual and odour cues in identifying food in the near environment, guiding food choice and memory for eating, and highlight the ways in which tastes and textures influence meal size and the development of satiety after consumption. Considering sensory characteristics as a functional feature of the foods and beverages we consume provides the opportunity for research to identify how sensory enhancements might be combined with energy reduction in otherwise palatable foods to optimize short-term energy intake regulation in the current food environment. Moving forward, the challenge for sensory nutritional science will be to assess the longer-term impact of these principles on weight management.
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Affiliation(s)
- K McCrickerd
- Clinical Nutrition Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, Singapore.,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore
| | - C G Forde
- Clinical Nutrition Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, Singapore.,Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore.,National University of Singapore, Department of Physiology, Yong Loo Lin School of Medicine, Singapore
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Bolhuis DP, Newman LP, Keast RSJ. Effects of Salt and Fat Combinations on Taste Preference and Perception. Chem Senses 2015; 41:189-95. [PMID: 26708735 PMCID: PMC4776737 DOI: 10.1093/chemse/bjv079] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2015] [Indexed: 12/29/2022] Open
Abstract
Fat and salt are a common and attractive combination in food and overconsumption of either is associated with negative health outcomes. The major aim was to investigate contributions and interactions of salt and fat on taste pleasantness and perception. The minor aim was to investigate individual fat taste sensitivity (detection threshold of oleic acid [C18:1]) on pleasantness for fat. In a complete factorial design, 49 participants (18–54 years, 12 males) tasted tomato soups with 4 different fat concentrations (0–20%) and 5 different salt concentrations (0.04–2.0%). The preferred concentration and the discrimination ability for both fat and salt were determined by ranking tests. Results show that salt and fat affected pleasantness separately (P < 0.01), with salt having the strongest effect. Fat concentrations 0%, 5%, and 10% did not differ in pleasantness, whereas 20% was less pleasant (P < 0.05). There were no interactions for fat and salt on pleasantness or saltiness and fattiness intensity. Fat taste sensitive participants preferred lower fat concentrations than less sensitive participants (P = 0.008). In conclusion, the strong effect of salt on pleasantness in this study suggests that salt, rather than fat, play a major role in the attraction to savory fatty foods.
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Affiliation(s)
- Dieuwerke P Bolhuis
- Centre for Advanced Sensory Science, School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Highway, Burwood, Victoria 3125, Australia
| | - Lisa P Newman
- Centre for Advanced Sensory Science, School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Highway, Burwood, Victoria 3125, Australia
| | - Russell S J Keast
- Centre for Advanced Sensory Science, School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Highway, Burwood, Victoria 3125, Australia
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Schouteten JJ, De Steur H, De Pelsmaeker S, Lagast S, De Bourdeaudhuij I, Gellynck X. Impact of Health Labels on Flavor Perception and Emotional Profiling: A Consumer Study on Cheese. Nutrients 2015; 7:10251-68. [PMID: 26690211 PMCID: PMC4690085 DOI: 10.3390/nu7125533] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 10/23/2015] [Accepted: 11/30/2015] [Indexed: 11/23/2022] Open
Abstract
The global increase of cardiovascular diseases is linked to the shift towards unbalanced diets with increasing salt and fat intake. This has led to a growing consumers' interest in more balanced food products, which explains the growing number of health-related claims on food products (e.g., "low in salt" or "light"). Based on a within-subjects design, consumers (n = 129) evaluated the same cheese product with different labels. Participants rated liking, saltiness and fat flavor intensity before and after consuming four labeled cheeses. Even though the cheese products were identical, inclusion of health labels influenced consumer perceptions. Cheese with a "light" label had a lower overall expected and perceived liking compared to regular cheese. Although cheese with a "salt reduced" label had a lower expected liking compared to regular cheese, no lower liking was found when consumers actually consumed the labeled cheese. All labels also influenced the perceived intensities of the attributes related to these labels, e.g., for example salt intensity for reduced salt label. While emotional profiles of the labeled cheeses differed before tasting, little differences were found when actual tasting these cheeses. In conclusion, this study shows that health-related labels might influence the perceived flavor and emotional profiles of cheese products.
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Affiliation(s)
- Joachim J Schouteten
- Department of Agricultural Economics, Ghent University, Coupure links 653, Gent 9000, Belgium.
| | - Hans De Steur
- Department of Agricultural Economics, Ghent University, Coupure links 653, Gent 9000, Belgium.
| | - Sara De Pelsmaeker
- Department of Agricultural Economics, Ghent University, Coupure links 653, Gent 9000, Belgium.
| | - Sofie Lagast
- Department of Agricultural Economics, Ghent University, Coupure links 653, Gent 9000, Belgium.
| | - Ilse De Bourdeaudhuij
- Department of Movement and Sport Sciences, Ghent University, Watersportlaan 2, Gent 9000, Belgium.
| | - Xavier Gellynck
- Department of Agricultural Economics, Ghent University, Coupure links 653, Gent 9000, Belgium.
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Loftus HL, Astell KJ, Mathai ML, Su XQ. Coleus forskohlii Extract Supplementation in Conjunction with a Hypocaloric Diet Reduces the Risk Factors of Metabolic Syndrome in Overweight and Obese Subjects: A Randomized Controlled Trial. Nutrients 2015; 7:9508-22. [PMID: 26593941 PMCID: PMC4663611 DOI: 10.3390/nu7115483] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 11/06/2015] [Accepted: 11/10/2015] [Indexed: 11/16/2022] Open
Abstract
Limited studies have shown that Coleus forskohlii extract may aid in weight management. This randomized, double blind placebo-controlled clinical study assessed the effects of supplementation with C. forskohlii extract on key markers of obesity and metabolic parameters in overweight and obese individuals. Thirty participants completed the trial and they were randomly assigned to receive either 250 mg of C. forskohlii extract (n = 15) or a placebo twice daily for 12 weeks. All participants were advised to follow a hypocaloric diet throughout the study. Body weight, body mass index (BMI), waist and hip circumference, and waist to hip ratio, were monitored fortnightly. Dietary intake was assessed at the baseline and weeks 4, 8 and 12. Appetite was assessed using visual analogue scales and blood samples were analyzed for plasma lipids, ghrelin, leptin, glucose and insulin at the baseline and end of the intervention. Significant reductions to waist and hip circumference (p = 0.02; p = 0.01, respectively) were recorded in both experimental and placebo groups after the 12 week intervention. Furthermore, high density lipoprotein-cholesterol (HDL-C) was significantly increased (p = 0.01) in both groups. The experimental group showed a favorable improvement in insulin concentration and insulin resistance (p = 0.001; 0.01 respectively) compared to the placebo group. These findings suggest that C. forskohlii extract in conjunction with a hypocaloric diet may be useful in the management of metabolic risk factors.
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Affiliation(s)
- Hayley L Loftus
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, P.O. BOX 14428 MCMC, Melbourne 8001, Australia.
| | - Katie J Astell
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, P.O. BOX 14428 MCMC, Melbourne 8001, Australia.
| | - Michael L Mathai
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, P.O. BOX 14428 MCMC, Melbourne 8001, Australia.
| | - Xiao Q Su
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, P.O. BOX 14428 MCMC, Melbourne 8001, Australia.
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Boltong A, Keast R. Chemosensory Science in the Context of Cancer Treatment: Implications for Patient Care. CHEMOSENS PERCEPT 2015. [DOI: 10.1007/s12078-015-9180-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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