ISSN:
1750-3841
Quelle:
Blackwell Publishing Journal Backfiles 1879-2005
Thema:
Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
,
Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
Notizen:
Polygalacturonic acid (PGA), dissolved by neutralization with KOH, rapidly clarified lime, lemon, grapefruit, orange, and apple juices, orange and grapefruit pulp wash liquors, and lemon peel juice. In 1 hr turbidity was reduced to 5% or less of its original value in orange, grapefruit, and lemon juices, 12% in lime juice, 8% in grapefruit pulp wash liquor, and 11% in lemon peel juices. Turbidities of apple juice and orange pulp wash liquor were reduced to 30 and 38%. Optimum PGA concentration ranged from 75-500 ppm. Clarification was pH dependent, with different commercial preparations differing in pH optima. Optimal pH for clarification varied directly with PGA molecular weight.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1111/j.1365-2621.1976.tb14416.x
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