Diffusion and Performance of Fragranced Products: Prediction and Validation

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Miguel Teixeira (Author) FEUP; Oscar Rodriguez (Author) FEUP; Alírio Rodrigues (Author) FEUP

Journal

Title: AICHE Journal

Vol. 59 No. 10

Pages: 3943-3957

ISSN: 0001-1541

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 2 Citations

Scientific classification

FOS: Engineering and technology

Other information

Authenticus ID: P-006-6PM

DOI: 10.1002/aic.14106

Abstract (EN): The design of fragranced products is a combination of art, technology, and scientific knowledge, although the former still predominates in the industry. For that reason, a theoretical model to assess their performance considering the release and diffusion together with the predicted odor intensity over time and distance from the source was developed and validated. Diffusion profiles were experimentally measured in a diffusion tube, similar to the Stefan tube, and predicted with a model for pure fragrance chemicals, binary, quaternary, and multicomponent (11 chemicals) mixtures. A very good agreement between our purely predictive model and experimental concentration data was observed. Fragrance concentrations in air were then converted into odor intensities using models from psychophysics, making it possible to evaluate the evolution of the odor with time and distance using a performance plot. Accordingly, the performance of these mixtures was modeled and experimentally validated, which constitutes a landmark for fragrance design. (c) 2013 American Institute of Chemical Engineers AIChE J, 59: 3943-3957, 2013

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15