Author A. Druffner, S. Kamin
Journal Edition sofw journal 1/2-2021

Abstract

Foam is an important consideration in the development of toothpaste formulations. Although toothpastes are increasingly formulated to deliver a range of oral health benefits, foam remains an important attribute for consumer acceptability. Foam properties like speed, quantity, quality and longevity are key signal and sensory attributes for many personal care and hygiene cleansing products, including toothpaste [1]. In general, consumers perceive foam as an indication that the product is performing. It is well accepted that surfactants provide foam to toothpaste.

In this study, the foam characteristics of model aqueous toothpastes using sodium lauryl sulfate (SLS) and cocamidopropyl betaine (CAPB) were measured using a Kruss dynamic foam analyzer. Toothpaste foam properties and foam structure were continuously monitored through video image analysis. It was shown that the method can differentiate between the foam of the different toothpaste formulations and the measurements correlate with consumer perception. In additional studies, the impact of a nature-derived polymer, from sustainably sourced cellulose, on toothpaste foam quality was evaluated. The results show the polymer can modify the foam to provide more luxurious and creamy foam to afford consumers with enhanced sensory experience.

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