Sensory Shelf Life Estimation of Food Products

1st Edition

Guillermo Hough

CRC Press
Published May 25, 2010
Reference - 264 Pages - 63 B/W Illustrations
ISBN 9781420092912 - CAT# 9291X

For Instructors Request Inspection Copy


Add to Wish List
FREE Standard Shipping!


  • Explains how to design a shelf life estimation experiment
  • Develops the application of survival analysis statistics to SSL prediction using acceptance/rejection data obtained from consumers
  • Presents instructions, code and downloadable example files to be used with the freely available R-statistical package
  • Details the cut-off point methodology as an alternative to survival analysis
  • Covers non-linear and survival analysis modeling of Arrhenius’ equation to obtain adequate predictions of activation energies
  • Includes an R-function to perform a non-linear regression to better estimate activation energy
  • Describes extensions of survival analysis statistics to other food applications


Complying with food regulations and, more importantly, quality standards, requires practical and reliable methods to estimate a product’s shelf life. Emphasizing the importance of the consumer’s perception of when food has reached the end of its shelf life, Sensory Shelf Life Estimation of Food Products provides a tool for adequately predicting sensory shelf life (SSL).

The book delineates the basics of sensory analysis and how it applies to shelf-life studies and includes discussions of experimental design aspects, survival analysis methodology, and its extensions. It provides detailed instructions and software functions for performing SSL estimations, accompanied by data sets and the R Statistical Package functions that are available for download. The author presents the cut-off point methodology used to estimate SSL when the survival analysis methods get complicated. He includes a chapter on accelerated storage covering kinetics, calculations of prediction confidence intervals and potential pitfalls. He also examines extensions of survival analysis statistics to other areas of food quality such as optimum concentration of ingredients and optimum cooking temperatures.

Microbiologically stable foods, such as biscuits or mayonnaise, will have their shelf-life defined by the changes in their sensory properties. Many fresh foods, such as yogurt or pasta, after relatively prolonged storage may be microbiologically safe to eat but rejected due to changes in their sensory properties. Shelf life in most food products is determined by sensory issues instead of microbiological or chemical concerns. This book offers key techniques for experimental design, storage, consumer testing procedures, and calculations. It includes methods for accelerated storage experiments, thoroughly explains statistical data treatment, and includes practical examples.


We provide complimentary e-inspection copies of primary textbooks to instructors considering our books for course adoption.

Request an
e-inspection copy

Share this Title