Abstract
The results of the study of the composition of volatile compounds of rennet cheeses are presented. Sample preparation was performed using Supelco’s solid-phase microextractor, including a special fiber material coated with a layer of divinylbenzene-carboxene-polydimethylsiloxane «DVB / Carboxen / PDMS StableFlesh ™». Using gas chromatography with mass-selective detection, about 400 aroma-forming components were detected, among which 39 compounds were identified, which form the basis of the flavor profile of cheeses. The main flavor descriptors for all cheeses are: propionic, butyric, and caproic acids, acetoin, methyl amyl ketone, 2-nonanone, and limonene. It has been established that the profile of volatile components for cheeses various ripening periods, has significant differences. Thus, for semi-hard cheeses made using propionic acid microorganisms, the most characteristic components are acids — propionic and butyric, as well as compounds of the terpene series o-cymene and β-pinene. For semi-hard cheeses of the Dutch group (formed from the layer), with maturities from 20 days to 3 months, the terpene compounds and esters are the most significant, whereas for superhard cheeses with a maturity of more than a year, the main components affecting the aromatic profile are butyric and caproic acids, 2-heptanone and limonene. Semi-hard and hard cheeses with ripening periods from 3 to 6 months are characterized by a high content of caproic and butyric acids, as well as by the presence of such aromatic substances as limonene and acetic acid ethyl acetate (hexyl acetate). Semi-hard cheeses, which are molded in bulk, with maturities from 10 days to 3 months contain acetoin, caproic acid, as well as significant quantities of the same limonene and hexylacetate.
Highlights
An important place among dairy products is occupied by cheeses — products obtained by coagulating milk and subsequent long-term processing where moisture has been removed resulting in a clot
Semi-hard and hard cheeses with ripening periods from 3 to 6 months are characterized by a high content of caproic and butyric acids, as well as by the presence of such aromatic substances as limonene and acetic acid ethyl acetate
Conclusions the study of aroma compounds of semi-solid and hard rennet cheeses produced in the Republic of Belarus made it possible to establish the most characteristic components responsible for the formation of their sensory properties
Summary
An important place among dairy products is occupied by cheeses — products obtained by coagulating milk and subsequent long-term processing where moisture has been removed resulting in a clot. Processing is ended with formation of cheese mass and salting of obtained wheels of cheese. Cheese gains its properties only after a long-term process of ripening in cheese cellars, where the conditions are created for accumulation of taste and aroma properties of cheese mass. It is proposed to classify all the variety of cheeses produced according to the following criteria: type of raw material and its properties; the composition of the microflora involved in the production of cheese; parameters and conditions of the process; composition and properties of the finished product. From the entire range of cheeses, two most significant and widespread groups of cheeses can be distinguished: hard rennet cheeses with high and low temperatures of the second heating and semihard rennet cheeses
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
