Entrainment distillation as a reference method for the determination of the water content of foods : III. Application of the method developed to some model substrata
article
The isooctane entrainment distillation technique, developed in a previous paper was applied to a set of model substrata, i.e. crystal hydrates, a choice of biocolloids and substrates rich in lipids and essential oils.
The data for hydrates and biocolloids obtained in the new technique were in satisfactory agreement with those arrived at using the best indirect reference method. The entrainment distillation technique operated more quickly than this reference method and had a more general applicability, since substrates rich in lipids and essential oils did not offer any difficulties. Slow dehydration of lactose hydrate and the necessity for neutralizing acid systems containing levulose or sucrose before desiccation are still disadvantages of the method.
The data for hydrates and biocolloids obtained in the new technique were in satisfactory agreement with those arrived at using the best indirect reference method. The entrainment distillation technique operated more quickly than this reference method and had a more general applicability, since substrates rich in lipids and essential oils did not offer any difficulties. Slow dehydration of lactose hydrate and the necessity for neutralizing acid systems containing levulose or sucrose before desiccation are still disadvantages of the method.
TNO Identifier
288768
Source
Recueil des travaux chimiques des Pays-Bas, 70(4), pp. 331-343.
Pages
331-343
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