MANUAL Published: 23 December 2020
MNL1320160028

Chapter 2 | The Texture Profile Method

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The objective in developing this chapter was twofold: to review the characteristics and core philosophy of the original Texture Profile Method, one of the first formal descriptive analysis methods developed in the 1960s; and to document the main advances and improvements to this fundamental method over the past decades. A compendium of these important advances has not been documented, thus, the value of this manuscript. To accomplish the first objective, the core characteristics and philosophy of the original Texture Profile Method are documented, with emphasis on its main features and contributions to the field of descriptive analysis. Specifically, it is the highly technical descriptive method that (a) provides comprehensive information on the products' mechanical, geometrical, and fat/moisture-related properties and their structural changes throughout all manipulation stages, (b) represents a rheologically based sensory approach that develops and uses accurate and rheologically based sensory language and controlled product presentation and evaluation procedures, (c) follows a carefully planned panel screening and training approaches to establish well-trained texture panels, and (d) is recognized as the method that established the practice of developing and using quantitative/intensity references to score attributes' intensities. To accomplish the second objective, the main advances discussed in this chapter are: (a) how additional attribute definitions and evaluation procedures were incorporated, (b) the update of texture intensity reference scales and the development of new intensity scales, (c) the use of more comprehensive approaches to select assessors, (d) use of various scaling procedures beyond the original scale used, (e) collection of individual scores without consensus and inclusion of replications, (f) statistical analysis of data, (g) how the principles of the original Texture Profile Method were used in developing profile derivative descriptive methods, and (h) adaptation of the method to establish procedures to evaluate texture related attributes in nonfood products, such as in skincare, hair, cosmetics, paper and fabrics, pet, and other products.

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Muñoz, Alejandra, M.
IRIS: International Resources for Insights and Solutions, LLC, Mountainside, NJ, US
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Pages: 19–49
DOI: 10.1520/MNL1320160028
ISBN-EB: 978-0-8031-7119-0
ISBN-13: 978-0-8031-7118-3