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Faster sensory screening From November 2008 newsletter

Faster sensory screening

Companies seeking faster, simpler and more cost-effective sensory profiling will benefit from a new approach resulting from research at Campden BRI. The technique, called Partial Napping®, should prove particularly useful where a company needs to sort a large sample set prior to more in-depth analysis of selected samples - such as 'sensory screening' of new formulations in product development.

The conventional method, Quantitative Descriptive Analysis®, uses trained panellists and is highly effective at characterising the sensory properties of a sample set, but it can be time-consuming, complex and relatively costly. Napping had been shown to offer a faster, simpler alternative: assessors group samples on a two dimensional surface according to their similarities and differences, to quickly produce a perceptual map. Descriptive terms can be added to the map, but these are less informative than those from profiling.

In Partial Napping, the assessors repeat the Napping process, concentrating each time on a different sensory modality (e.g. appearance, odour, flavour and texture) and adding relevant descriptive terms at each round. The research shows that Partial Napping retains the advantages of simplicity and rapidity, but is closer to conventional profiling in terms of the descriptions yielded.

This development adds to our breadth of sensory services and complements our sensory training and related publications

Contact: Chantal Gilbert
+44(0)1386 842256