Significance of 2-heptanone in evaluating the effect of microfiltration/pasteurisation applied to goats’ milk

Influence of Heat Treatment and Microfiltration on the Milk Proteins Properties

“…[70][71][72] The liquid submitted to this process is divided into two fractions: the fluid retained by the membrane (i.e., the retentate), which results in a higher concentration of the components having a bigger size than the average pore diameter of the membrane, and the liquid going through the membrane (i.e., the permeate or the microfiltrate) ( Figure 3). 73 However, as related by Brans et al, 31 whole milk is a com-plex and challenging feed for microfiltration membranes because of the broad particle size distribution (1 nm-20 µm) coming from the fat globules and natural and/or seasonal variations in composition. Bacteria spores and somatic cells present in raw milk are not affected by the HTST heat treatment used in the processing of most dairy products, whereas they can be physically removed by microfiltration.…”

“…79 Membrane processes are used to improve the microbial quality of milk and dairy fluids, as well as are also applied for preserving the functional properties of milk proteins. 71 Avalli et al 73 reported that the mechanic stress of the transmembrane pressure affects minimally the milk proteins in comparison with heat temperature processes. But when the skim milk passes through the microfiltration membrane the proteins and minerals tend to form aggregates in the pores and this problem may decrease the flux and modify its properties and the quantity of the protein in the permeate.…”

Solubility of fragrance raw materials in water: Experimental study, correlations, and Mod. UNIFAC (Do) predictions

“…The potential use of these materials in our society is very high, and the knowledge of the solubility in water is important information not only to produce the technological mixtures, but also from the environment point of view. For example, 2-heptanone is responsible for the aroma of milk [2]. The other ketone, 2-nonanone is used for packing and transport of wild strawberries, assurance proper aroma, and antifungal activity [3].…”