Pectin from Husk Tomato (Physalis ixocarpa Brot.): Rheological behavior at different extraction conditions
作者： Blanca E. Morales-Contreras , Walfred Rosas-Flores , Juan C. Contreras-Esquivel , Louise Wicker , Juliana Morales-Castro
DOI: 10.1016/J.CARBPOL.2017.09.097
关键词:
摘要: Abstract A rheological study was carried out to evaluate formulations of test dispersions and gels high methoxyl pectins (HTHMP) obtained at different conditions from husk tomato waste ( Physalis ixocarpa Brot.). The effect extraction agent (hydrochloric acid or citric acid), blanching time (10 15 min) (15, 20 25 min) on the rheology tested samples evaluated. Flow behavior activation energy were evaluated dispersions, while E a ) frequency sweeps, temperature sweep, creep-recovery penetration performed gels. HTHMP showed shear thinning flow behavior, showing good fit Cross model. Extraction agent, did not have parameters (η z , η∞, C, m). decreased as increased. Frequency sweeps revealed dependence for both G’ G”, (25- 95 °C) thermostable pectin Hydrocloric (HCl) extracted stronger structure than (CA)
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