Investigation of the stabilization and preservation of sweet sorghum juices

Autor: Gillian Eggleston, Scottie Sklanka, Eldwin St. Cyr, Anthony J. Delucca, Randall Powell, C. D. Dalley
Rok vydání: 2015
Předmět:
Zdroj: Industrial Crops and Products. 64:258-270
ISSN: 0926-6690
Popis: a b s t r a c t Sweet sorghum juice is extremely vulnerable to microbial spoilage during storage because of its high water activity and rich sugar medium, and this represents a major technical challenge. The effects of clarification (80 ◦C; limed to pH 6.5; 5 ppm polyanionic flocculant) and UV-C irradiation were inves- tigated as stabilization and preservation treatments for juices stored at ambient temperature (∼25 ◦ C). Juices were extracted by roller press from various sweet sorghum cultivars grown in humid and dry envi- ronments in Louisiana and Tennessee, respectively. Raw juices contained up to 10 9 total bacteria cfu/mL. Initial results indicated that pilot plant clarified juice was considerably more stable than raw or UV-C irradiated (15 W lamp aquaculture system at ∼25 ◦ C) juice, irrespective of cultivar. Further experiments
Databáze: OpenAIRE