Grape juice, concentration

Wucherpfennig, K. 1975. The inhibition of tartrate precipitation in grape juice concentrate by means of electrodialysis. International Federation of Fruit Juice Producers. Scientific-Technical Commission Report 13, pp. 73-117. 

For variety, try using some orange marmalade, raspberry or strawberry preserves, or even a tablespoon of frozen red or purple grape juice concentrate in place of sugar or other sweeteners. Combining the flavors of fruit with cocoa just can t be beat ... 

I ve included quite a few of my favorite recipes, frequently spiked with cocoa powder or grape juice concentrate to provide lots of flavor as well as a load of blood pressure-healthy polyphenols. Look to berries for even more polyphenols. There s no limit to the combinations of ingredients. On a happy, economical note, you ll never waste fruit when it gets a bit overripe ... 

When certain fruits, such as mangos and peaches, are in season, I buy them at their best taste and lowest price, let them get nice and ripe, and store them in packets in the freezer. Many stores also stock bags of frozen fruits and berries. I keep frozen orange juice and red grape juice concentrate handy as well. Egg substitute is an excellent protein source to balance the meal s nutritional profile. If your smoothie comes out thicker than you d like, just add more milk, water, or juice to thin it out to your preference. 

Thus a more accurate estimate of the viscosities of concentrated apple and grape juices can be obtained by incorporating the value of calculated using either Equation 5.7 or 5.8 at a specific concentration in Equation 5.6. Although two separate equations were derived for the apple and grape juice concentrates, one could easily justify a single equation that would be reasonably applicable to both concentrates. 

There have been many studies on the application of membrane technology to food Industries. Few have, however, reached a commercial success except those of dairy processes (1) DAICEL has been studying since 1971 the application of its cellulose acetate RO membranes and polyacrylonitrile UF membranes to food, pharmaceutical, medical, paper and other industries. As to the use of membranes in food industries other than dairy processes, only two cases were developed to a semicommercial scale, that is, grape juice concentration for wine must and tomato juice concentration for processing and storage of the juice till next harvest. 

Processing and Storage Influences on the Chemical Composition and Quality of Apple, Pear, and Grape Juice Concentrates... 

Figure 1. Gas chromatograms from a Freon 113 extract of Concord grape juice concentrated 3,500 times (top) and the 3% ether-pentane fraction of a Florisil separation of the whole Freon 113 extract concentrated 13,000 times (bottom). The dots show regions where odor was detected. Conditions 30 m 0.3 mm carbowax 20 M column, helium gas flow of 23 cm sec programmed...

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