NDLI: Determination of the osmotic pressure of multicomponent solutions in the food industry

Content Provider	Springer Nature Link
Author	Timkin, V. A. Lazarev, V. A.
Copyright Year	2015
Abstract	This paper is dedicated to the determination of the osmotic pressure of multicomponent solutions using aqueous food substances such as fruit and vegetable juices, whey, and lactose as examples. The determination of osmotic pressure as a critical parameter responsible for the efficiency of the membrane separation of multicomponent aqueous mineral-organic solutions is a problem of considerable current interest. An original method for the determination of the osmotic pressure of complex solutions has been developed. A relationship between the osmotic pressures of fruit and vegetable juices and whey and the concentration of lowmolecular-weight solutes (sugars and salt ions) in them has been revealed. A laboratory system for studying the reverse osmosis process has been developed. Experiments with fresh fruit and vegetable juices, curd whey, cheese whey, and lactose were carried out by a dynamic method with the use of a cellulose acetate reverse osmosis membrane with an asymmetric structure. The characteristics of the initial and final products after ultrafiltration are given. Based on the experimental data, the dependence of the osmotic pressure of fruit and vegetable juices, whey, and lactose on the concentration of dry solutes was plotted. The experimental results are discussed.
Starting Page	301
Ending Page	307
Page Count	7
File Format	PDF
ISSN	09655441
Journal	Petroleum Chemistry
Volume Number	55
Issue Number	4
e-ISSN	15556239
Language	English
Publisher	Pleiades Publishing
Publisher Date	2015-06-17
Publisher Place	Moscow
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	fruit and vegetable juice whey lactose membrane technology reverse osmosis osmotic pressure ultrafiltration ceramic membrane polymeric membrane Industrial Chemistry/Chemical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Geochemistry and Petrology Fuel Technology Chemical Engineering Energy Engineering and Power Technology

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