Igoundaz, Yassine and Yoshida, Kaito and Dawson, Freddie (2026) MENTHOL–EUCALYPTOL SENSORY MODULATION IN A SUGAR-FREE HERBAL HARD CANDY: VOLATILE RETENTION, COUGH-REFLEX EVIDENCE, AND RESPIRATORY COMFORT. Journal of Healthcare Science and Management, 1 (4). ISSN 3124-0615

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Abstract

Objective: Menthol and eucalyptus-derived 1,8-cineole are widely used in cooling-aromatic respiratory products, but their physiological relevance depends on both sensory delivery and preservation of volatile constituents during manufacture. We evaluated a sugar-free herbal hard candy containing eucalyptus oil microcapsule powder and menthol, with emphasis on 1,8-cineole retention, flavor uniformity and the human evidence linking menthol/cineole exposure to cough sensitivity and respiratory comfort. Method: In the optimized process, eucalyptus oil was microencapsulated with maltodextrin and gum arabic, spray-dried, and added together with menthol only after the candy mass had cooled to 92°C. Results: Relative 1,8-cineole retention reached 82.1%, compared with 64.5% when an equivalent amount of liquid eucalyptus oil was directly incorporated and 68.2% when the microcapsule fraction was added at 128°C. The optimized candy also produced highly uniform eucalyptus flavor and high overall sensory acceptance. Human challenge studies show that menthol can increase capsaicin or citric-acid cough thresholds in healthy subjects and in patients with chronic cough, with cough-count responses varying across studies. Separately, oral cineole at pharmacological doses has demonstrated symptom-related effects in randomized studies of acute bronchitis, asthma and chronic obstructive pulmonary disease. Novelty: The NVTIA formulation therefore combines a manufacturing strategy that preserves a volatile eucalyptus marker with a menthol-cineole sensory architecture that has independently measurable human physiological correlates. The current findings provide a formulation-level basis for future studies using cough-urge, cough-challenge, perceived airway cooling and respiratory-comfort endpoints under product-specific exposure conditions.

Item Type:	Article
Uncontrolled Keywords:	Menthol, 1,8-Cineole, TRPM8, Cough reflex, Eucalyptus oil microcapsule, Respiratory comfort
Subjects:	H Social Sciences
Depositing User:	admin eprints
Date Deposited:	04 Nov 2026 07:52
Last Modified:	04 Nov 2026 07:52
URI:	http://eprints.umsida.ac.id/id/eprint/17428

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