Приказ основних података о документу
Application of ultrafiltration to apple juice clarification
Primena ultrafiltracije za bistrenje soka jabuke
dc.creator | Vladisavljević, Goran | |
dc.creator | Vukosavljević, Predrag | |
dc.creator | Bukvić, Branka | |
dc.creator | Zlatković, Branislav | |
dc.date.accessioned | 2020-12-17T17:42:27Z | |
dc.date.available | 2020-12-17T17:42:27Z | |
dc.date.issued | 2000 | |
dc.identifier.issn | 1450-8109 | |
dc.identifier.uri | http://aspace.agrif.bg.ac.rs/handle/123456789/208 | |
dc.description.abstract | Raw depectinized apple juice was clarified in a laboratory scale ultrafiltration (UF) system using ceramic tubular membranes (Tech-Sep Carbosep) with a molecular weight cut-off of 300,000, 50,000, and 30,000 daltons. The experiments have been carried out over a wide range of transmembrane pressures (100-400 kPa), temperatures (293-328 K), and feed flow rates (100-900 mL/min). Permeate flux significantly decreased with time until a steady state was established. The steady-state permeate flux reached a maximum at a transmembrane pressure of about 200 kPa. Higher permeate flux was obtained at higher temperatures due to lower permeate viscosity. A linear relationship between steady-state permeate flux and feed flow rate in logarithmic coordinates was obtained and the slope of these lines ranged from 0.22 to 0.31. | en |
dc.description.abstract | Bistrenje depektinizovanog matičnog soka jabuke uspešno je vršeno ultrafiltracijom kroz keramičke cevne membrane proizvedene od cirkonijum-oksida i titan-dioksida na podlozi od poroznog ugljenika. Eksperimenti su vršeni uz potpunu recirkulaciju retentata i sa protocima napojne struje u modulu od 100-900 ml/min. Fluks permeata u početku opada sa vremenom, ali se posle određenog vremena uspostavlja stacionarno stanje. Stacionami fluks permeata, L dostiže maksimum pri transmembranskom pritisku od oko 200 kPa, nakon čega opada sa daljim porastom pritiska. To se može objasniti deformacijom čestica mutnoće u sloju gela, raskidanjem krupnijih lančastih agregata otvorene strukture i formiranjem sitnijih čestica koje se gušće pakuju u sloju gela, što dovodi do smanjenja poroznosti i propustljivosti sloja. U log-log koordinatnom sistemu stacionami fluks permeata linearno raste sa porastom protoka napojnog soka, pri čemu nagib ovih pravih varira od 0,22 do 0,31. | sr |
dc.publisher | Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-sa/4.0/ | |
dc.source | Journal of Agricultural Sciences (Belgrade) | |
dc.subject | ultrafiltration | en |
dc.subject | apple juice | en |
dc.subject | clarification | en |
dc.subject | ceramic membrane | en |
dc.subject | permeate flux | en |
dc.title | Application of ultrafiltration to apple juice clarification | en |
dc.title | Primena ultrafiltracije za bistrenje soka jabuke | sr |
dc.type | article | |
dc.rights.license | BY-SA | |
dc.citation.epage | 130 | |
dc.citation.issue | 2 | |
dc.citation.other | 45(2): 121-130 | |
dc.citation.spage | 121 | |
dc.citation.volume | 45 | |
dc.identifier.fulltext | http://aspace.agrif.bg.ac.rs/bitstream/id/908/205.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_agrospace_208 | |
dc.type.version | publishedVersion |