Related Experiment Video
Updated: Dec 7, 2025
07:33
Sucrose Preference and Novelty-Induced Hypophagia Tests in Rats using an Automated Food Intake Monitoring System
Published on: May 8, 2020
11.1K
Exploring New and Modified Rejection-Type Thresholds Using Cricket Snack Crackers.
Ryan Ardoin1, Ross Romero1, Brian Marx2
1School of Nutrition and Food Sciences, Louisiana State University, Agricultural Center, Baton Rouge, LA 70803, USA.
Foods (Basel, Switzerland)
|September 29, 2020
Summary
New methods for sensory threshold testing were developed using cricket powder in snack crackers. These approaches offer more realistic interpretations of product rejection, aiding food formulation.
Area of Science:
- Food Science
- Sensory Analysis
- Consumer Behavior
Background:
- Sensory threshold concepts traditionally focus on detection, but affective perceptions and product rejection are increasingly important.
- Existing methodologies for measuring product rejection thresholds have limitations in interpretation based on the specific methods used.
- Understanding consumer rejection is crucial for novel ingredient incorporation and product development.
Purpose of the Study:
- To propose and evaluate modified and novel methodologies for assessing sensory rejection thresholds in food products.
- To investigate the impact of cricket powder incorporation on various sensory attributes (color, flavor, texture, overall perception) of snack crackers.
- To provide more flexible and realistic interpretations of rejection thresholds for product formulation and consumer acceptance.
Main Methods:
- Modified Consumer Rejection Threshold (M-CRT) using a 2-alternative choice (2-AC) preference test with a 'no preference' option.
- Modified Hedonic Rejection Threshold (M-HRT) based on hedonic scores below neutral, analyzed with a one-sample t-test.
- Novel Rejection Tolerance Threshold (RTT) and Rejection Range (RR) using binomial acceptability questions and probit regression.
- Evaluation of cricket powder (0-20%) substituted for whole-wheat flour in snack crackers.
Main Results:
- The study demonstrated differential sensory effects of cricket powder on color, flavor, texture, and overall perception of snack crackers.
- Modified and novel threshold methodologies provided varied interpretations of consumer rejection based on the chosen approach.
- The proposed RTT and RR offer more realistic and flexible insights into consumer rejection levels for product formulation.
Conclusions:
- The developed M-CRT, M-HRT, RTT, and RR methodologies offer expanded and more realistic interpretations of sensory rejection thresholds.
- Integrating multiple threshold testing techniques within a single session provides a comprehensive understanding of rejection phenomena with minimal resource increase.
- These methods enhance the ability to manage novel ingredient integration, like cricket powder, by providing actionable data for product development and consumer acceptance.
Related Concept Videos
01:14Decision Making: Traditional Method
4.9K
The process of hypothesis testing based on the traditional method includes calculating the critical value, testing the value of the test statistic using the sample data, and interpreting these values.
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
First, a specific claim about the population parameter is decided based on the research question and is stated in a simple form. Further, an opposing statement to this claim is also stated. These statements can act as null and alternative hypotheses, out of which a null hypothesis would be a...
4.9K
01:16Critical Region, Critical Values and Significance Level
13.0K
The critical region, critical value, and significance level are interdependent concepts crucial in hypothesis testing.
In hypothesis testing, a sample statistic is converted to a test statistic using z, t, or chi-square distribution. A critical region is an area under the curve in probability distributions demarcated by the critical value. When the test statistic falls in this region, it suggests that the null hypothesis must be rejected. As this region contains all those values of the...
In hypothesis testing, a sample statistic is converted to a test statistic using z, t, or chi-square distribution. A critical region is an area under the curve in probability distributions demarcated by the critical value. When the test statistic falls in this region, it suggests that the null hypothesis must be rejected. As this region contains all those values of the...
13.0K
01:02Quantifying and Rejecting Outliers: The Grubbs Test
3.3K
Sometimes, a data set can have a recorded numerical observation that greatly deviates from the rest of the data. Assuming that the data is normally distributed, a statistical method called the Grubbs test can be used to determine whether the observation is truly an outlier. To perform a two-tailed Grubbs test, first, calculate the absolute difference between the outlier and the mean. Then, calculate the ratio between this difference and the standard deviation of the sample. This...
3.3K