1,721,005 research outputs found
Typical application of TVS modelling to two natural materials from Brenta's alluvional plan (Italy) for mudtherapy and cosmetic characterization.
No full textpH-stat techniques in titrimetric analysis. IV. pH-stat monitoring of chelatometric titrations
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The importance on an integrated analytic approach to the study of physico-chemical characteristics of natural thermal waters used for pelotherapy aims: perspectives for reusing cooled thermal waters for treatments related to thermalism applications
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Development of a tensiometric model for surface energy characterization of raw coffee beans
No full textThe aim of this work is to investigate surface energy properties of various raw coffee bean species (tensiometric
approach) and to develop a tensiometric marker based on contact angle measurements of Fomblin
HC/25 drops, a perfluoropolyether phosphate (PFPE), to distinguish different species of raw coffee
beans. To create measurable contact angles, raw coffee beans were pre-selected according to the endosperm
surface morphology (smooth surface) and affixed to a specifically developed support. The tensiometric
method was developed using contact angle method (CA) and calculation models such as Owens,
Wendt and Kaelble. Results show the tensiometric properties of raw coffee beans expressed as surface
free energy (SFE) and the capability of the marker to distinguish species. This work could create interesting
prospects for quality control at the product source, storage conditions, and for industrial process evaluation
of roasting and drying
Study on the effects of cocoa seeds processing on the content of water-soluble protein, tryptophan and its metabolites
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