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Related Concept Videos

Assessment of the Mouth01:26

Assessment of the Mouth

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A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
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The Tongue and Taste Buds00:49

The Tongue and Taste Buds

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The surface of the tongue is covered with various small bumps called papillae, which either distribute what has been ingested (filiform papillae) or contain the sensory taste (or gustatory) receptor cells (fungiform, circumvallate, and foliate papillae). Embedded within each taste-related papilla are the taste buds—clusters of 30 to 100 gustatory receptor cells.
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Taste Buds and Receptors01:20

Taste Buds and Receptors

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Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
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Gustation01:43

Gustation

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Gustation is a chemical sense that, along with olfaction (smell), contributes to our perception of taste. It starts with the activation of receptors by chemical compounds (tastants) dissolved in the saliva. The saliva and filiform papillae on the tongue distribute the tastants and increase their exposure to the taste receptors.
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Methods for Studying Drug Absorption: In vitro01:16

Methods for Studying Drug Absorption: In vitro

366
In vitro experiments are crucial for understanding the transport and absorption of drugs through biological materials. These studies employ varied methods such as the diffusion cell method, the everted sac technique, and the everted ring technique.
The diffusion cell method uses a two-compartment cell, including a donor compartment with the drug solution, which simulates the environment where the drug is applied, and a receptor compartment with a buffer solution, which simulates the environment...
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The Physiology of Taste01:24

The Physiology of Taste

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The perception of a salty flavor is facilitated by sodium ions within the oral salivary fluid. Upon consumption of a salty substance, salt crystals disassemble, leading to the liberation of its constituents—Na+ and Cl- ions. These ions subsequently dissolve into the salivary fluid present in the oral cavity. The external environment of the gustatory cells experiences an elevation in Na+ concentration, thereby establishing a potent concentration gradient. This gradient propels the...
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Related Experiment Video

Updated: Oct 3, 2025

Taste Exam: A Brief and Validated Test
07:10

Taste Exam: A Brief and Validated Test

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[Application progress on taste evaluation methods for oral preparations].

Yue-Ying Zhao1, Chang-Hai Wang1, Ze-Kang Zhang1

  • 1School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|February 18, 2022
PubMed
Summary

Accurately assessing oral medication taste is crucial for patient adherence. This review examines taste assessment methods, highlighting limitations of human taste panels and the utility of alternative techniques for pharmaceutical development.

Keywords:
application progressoral preparationstaste evaluationtraditional human taste panel

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Area of Science:

  • Pharmaceutical Sciences
  • Sensory Science
  • Drug Delivery

Background:

  • Taste significantly impacts oral medication efficacy and patient compliance.
  • Objective taste characterization remains a challenge in oral preparation development.
  • Current taste assessment methods face limitations in accuracy and reproducibility.

Purpose of the Study:

  • To review and compare various taste assessment methods for oral preparations.
  • To provide insights into the principles, applications, and limitations of each method.
  • To guide taste correction research and improve oral drug product competitiveness.

Main Methods:

  • Review of traditional human taste panels.
  • Analysis of electronic tongue technology.
  • Evaluation of animal preference tests.
  • Examination of in vitro release studies.
  • Assessment of electrophysiological tests.

Main Results:

  • Human taste panels, while standard, suffer from subjectivity and poor reproducibility.
  • Electronic tongues, animal tests, in vitro release, and electrophysiology offer objective, albeit limited, auxiliary assessments.
  • Each method presents unique advantages and disadvantages for taste evaluation.

Conclusions:

  • Objective taste assessment is vital for enhancing patient compliance and product development.
  • Alternative methods complement traditional taste panels, addressing their inherent limitations.
  • Advancements in taste assessment technologies are key to improving oral preparation design and marketability.