Use of Polyphosphates in Agar Processing

Part IV. Industrial application of polyphosphates in agar manufacture

Abstract

The effects of polyphosphates on agar qualities which were confirmed in two factories manufacturing string- and bar-style agar ("hosokanten" and "kakukanten", respectively) were described. By adding 30-100ppm of polyphosphate in the cooking water for extracting agar from seaweeds, improvement in color of the product was obtained without significant decrease in the strength of agar gel.