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Caffeine content and perceived sensory characteristics of pod coffee: Effects on mood and cognitive performance

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posted on 2023-02-21, 04:46 authored by Christopher Irwin, Danielle McCartney, Saman KhalesiSaman Khalesi, Ben Desbrow
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.

History

Volume

6

Issue

2

Start Page

329

End Page

345

Number of Pages

17

eISSN

2322-0007

ISSN

2347-467X

Publisher

Enviro Research Publishers

Additional Rights

CC BY 4.0

Peer Reviewed

  • Yes

Open Access

  • Yes

Acceptance Date

2018-05-30

External Author Affiliations

Griffith University

Author Research Institute

  • Appleton Institute

Era Eligible

  • Yes

Journal

Current Research in Nutrition and Food Science

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