Essay On Triangle Test

In the first part of experiment, oral fatty acid sensitivity of panelists was determined by using triangle test. Triangle test is a type of discriminative or difference test. In the test, the panelists were given three sets of coded samples of skim milk. There were three coded samples in each set. Two of the samples were the same and one was odd. The odd sample contained oleic acid (C18:1). The panelists were asked to choose the odd sample in each set. Triplicates of samples were used in triangle test was due to the chance of correctly guessing the sample with added fatty acids three consecutive times in triangle test was only 3.7% (Stewart and others 2011).
Although fatty acids was not a ‘taste’ in the traditional sense such as sweet, however, previous research had proved that fatty acids can be detected in the oral cavity over a range of concentration (Mattes 2009). According to the results tabulated in Figure 1, a total of 32 panelists out of 50 panelists managed to correctly choose the odd sample in all three sets. Meanwhile, 10 panelists can identify the odd sample in two out of the

We can see that when the concentration of evaporated milk increased which represent an increase in fatty acids concentration, the sweetness of the sample increased. This showed that the concentration of fatty acids had a positive correlation with the sweetness of sample. However, the fatty food liking increased up to 32 ml of evaporated milk per 100g of dadih and decreased gradually when the concentration of fatty acids increased further. According to Steward and others (2010), they suggested that people who termed as hypersensitive towards oleic acids were better in detecting small difference in fat content and had lower BMI values that those who were defined as hyposensitive. This could be explained hypersensitive individuals had decrease liking when the concentration of fatty acids