Features International Sugar Journal
The Blackboard

Acid beverage floc (ABF) [Registered]

ABF, a flocculated turbid material that sometimes appears on standing in carbonated, acidified and sweetened beverages, causes severe commercial problems both in soft drinks and in acidic pharmaceutical syrups, although it is harmless (Edye et al, 2006). ABF can appear in beverages sweetened with beet or cane sugar. It should be noted that it is not associated with other haze forming processes in sugared solutions, such as the alcoholic precipitation of polysaccharides, the precipitation of SiO2, and biological activity. Roberts et al (1974, 1975) provide information on early work done in the beet industry. They state that “It was found,…

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