| 摘要 |
Use of high levels of fructose with alginate sols and calcium salts has been found to produce systems which gel very rapidly at high temperatures but not at normal ambient temperatures. Preferred systems use acids with calcium salts which are almost insoluble at neutral pH but are soluble at acid pHs. Advantageously the system contains a sequestrant for calcium ions. The concentration of fructose in the systems should be from 50% to 75% of the total, especially 60% to 72%. To produce gels the systems are heated at a temperature of at least 50 °C, especially from 60 °C to 90 °C. The system and process have many uses in, for example, the bakery trade. |
