Caffeine Content and Perceived Sensory Characteristics of Pod Coffee: Effects on Mood and Cognitive Performance
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McCartney, Danielle
Khalesi, Saman
Desbrow, Ben
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Abstract
Encapsulated (Pod) coffee is increasingly popular and available in a range of flavor and intensity profiles. This study examined consumption of different coffee Pods on mood and cognitive performance. Thirty-eight participants (n=6 males, 32 females; age: 23.9±5.4 years; weight: 64.3±11.9 kg; BMI: 22.4±2.7 kg·m-2; mean±SD) completed 3 trials, consuming either Cosi, Dharkan, or Kazaar Pods following overnight caffeine abstention. Mood and cognitive performance (choice reaction-time (CRT), visual scanning (VS), Stroop) were measured before and 30 min post coffee consumption. Sensory characteristics were measured during coffee consumption. Accuracy, Reaction Time (RT) central tendency and whole RT distributions were analyzed. Bitterness, flavour-intensity, aroma and perceived caffeine content ratings increased for Cosi, Dharkan and Kazaar Pods respectively. Reduced ratings of sleepiness and headache; and increased ratings of concentration, alertness, excitement and happiness were observed with all Pods. Coffee improved CRT latency (before: 469±55 vs. after: 459±50 ms; p=0.031), but not visual scanning performance. Stroop RTs were faster after coffee (before: 854±193 vs. after: 766±156 ms; p<0.001); with control, congruent and incongruent trials facilitated by different aspects of the RT distribution. Consumption of Nespresso® Pod coffee improves mood and cognitive performance irrespective of caffeine content, habitual caffeine use and Pod sensory characteristics. However, the effects on cognitive function appear to be task dependent.
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Current Research in Nutrition and Food Science
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6
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2
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© 2018 The Author(s). Published by Enviro Research Publishers. This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Nutrition and dietetics
Nutrition and dietetics not elsewhere classified
Food properties (incl. characteristics and health benefits)
Cognition
Science & Technology
Life Sciences & Biomedicine
Food Science & Technology
Caffeine
Coffee
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Irwin, C; McCartney, D; Khalesi, S; Desbrow, B, Caffeine Content and Perceived Sensory Characteristics of Pod Coffee: Effects on Mood and Cognitive Performance, Caffeine Content and Perceived Sensory Characteristics of Pod Coffee: Effects on Mood and Cognitive Performance, 2018, 6 (2), pp. 329-345