Contents - Previous - Next. Preservation is not only determined by the osmotic pressure of sugar solutions but also by the water activity values in the liquid phase, which can be lowered by sugar addition; and by evaporation down to 0. Maximum saccharose concentration that can be achieved in the liquid phase of the product is The preservation of fruit by jam making is a familiar process carried out on a small scale by housewives in many parts of the world. Factory jam making has become a highly complex operation, where strict quality control procedures are employed to ensure a uniform product, but the manufacturing operations employed are in essence the same as those employed in the house.
Fruit and vegetable processing - Ch08 Fruit specific preservation technologies (cont.)
Solutions and Mixtures
Solubility parameters were initially developed to guide solvent selection in the paint and coatings industry. Today, they are widely used in in many other fields to predict miscibility and solubility of polymers, chemical resistance, and permeation rates. One of the most important application of solubility parameters is the prediction of polymer solubility in solvents. The closer the solubility parameters of the solute and the solvent are, the more likely the solubility of the solute in the given solvent. In the case of polymers, there are several rules of thumb for selecting suitable solvents:.
Remember Me. Resolution of enantiomers is their separation into their two mirror forms. If a racemate has an acid or base moiety, a salt can be formed with a basic or acidic optically pure compound resolving agent , respectively.
Bancroft's Rule states that "The phase in which an emulsifier is more soluble constitutes the continuous phase. But it has a grain of truth and a wild variety of explanations. But if you're interested for historical reasons, read on. HLD theory makes it superfluous to use an old-fashioned approximation. But Bancroft's "rule" more a rule of thumb is much used in the surfactants world so cannot be ignored.