NDLI: Raw Juice Concentration by Osmotic Membrane Distillation Process with Hydrophobic Polymeric Membranes

Content Provider	Springer Nature Link
Author	Kujawa, Joanna Guillen Burrieza, Elena Arafat, Hassan A. Kurzawa, Marzanna Wolan, Andrzej Kujawski, Wojciech
Copyright Year	2015
Abstract	Hydrophobic polymeric membranes (PP, PTFE, and PVDF) were efficiently applied in juice concentration by osmotic membrane distillation process at room temperature. The properties of applied membranes were characterized by the value of static contact angle, hysteresis of contact angle, surface free energy, roughness, mean flow pore size, maximum pore size or bubble point, and the pore size distribution before and after their utilization in osmotic membrane distillation (OMD). Furthermore, the mechanical strength of the membranes was evaluated using the Mullen burst technique and characterization of fouling behavior was done. The impact of stripping solutions, characterized by different water activities (NaCl and CaCl$_{2}$), type of membrane materials, and membrane morphology, on the transport properties in a dehydration process was evaluated. Apple and beet juices with a high level of antioxidants were chosen. The quality of juices has been assessed by determination of total polyphenols and antioxidant activity. In the dehydration process, the most efficient were 0.45-μm PTFE and 0.45-μm PVDF membranes (24 % improvement). No loss of polyphenol content or reduction of antioxidant activity was observed after the juice dehydration.
Starting Page	2146
Ending Page	2158
Page Count	13
File Format	PDF
ISSN	19355130
Journal	Food and Bioprocess Technology
Volume Number	8
Issue Number	10
e-ISSN	19355149
Language	English
Publisher	Springer US
Publisher Date	2015-08-11
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Osmotic membrane distillation Polymeric membranes Juice concentration Antioxidant activity Total phenolic content Food Science Chemistry/Food Science Agriculture Biotechnology
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Safety, Risk, Reliability and Quality Food Science Process Chemistry and Technology

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