Canned dairy: factors of increasing preservation
DOI:
https://doi.org/10.31617/2.2022(42)06Abstract
Introduction. The main criterion for the state of water in food is the indicator of "water activity" (Aw), which affects their quality and
shelf life.
Problem. At present, it is advisable to propose such changes in the recipe and technology of canned milk, which would reduce the rate of "water activity" and increase the osmotic pressure.
The aim of the work is scientific substantiation of factors of canned milk preservation.
Methods. Objects of scientific research – low-fat condensed low-lactose milk with a sugar content of 13, 16 and 31 %, the low-fat
condensed milk with sugar by traditional technology was used as a control; dry milk multicomponent mixture with the addition of dry whey protein concentrate, as a control there was selected milk-carbohydrate mixture without protein component. Water activity (Aw) was determined on the device AguaLab-3TE, osmotic pressure – by cryoscopic method. The number of mesophilic aerobic and facultative anaerobic microorganisms was determined according to DSTU ISO 4833: 2006.
Results. Samples of low-lactose condensed milk with mass fraction of 34 and 32 % and sugar content of 31 % in terms of osmotic
pressure and "water activity" were the closest to traditional condensed milk with sugar and complied with current regulations on microbiological indicators. The dry whey protein concentrate, included into the formula of the dry milk multicomponent mixture, acts as a water-binding component, reducing the "water activity" to 0.290.
Conclusions. The use of enzymatic hydrolysis of lactose with the use of the enzyme preparation β-galactosidase has a positive
effect on the osmotic pressure and the indicator of "water activity". In the dry milk multicomponent mixture, the proposed dry whey protein concentrate as a water-binding component helps to reduce the rate of "water activity" and the number of
microorganisms. The proposed changes in the technology and recipe of the investigated canned milk will allow to extend the shelf life of products.
References
Benders’ka, O. V., Levkivs’ka, T. M., & Bessarab, O. S. (2018). Tehnologichni vlastyvosti pokaznyka "aktyvnist’ vody" i jogo vplyv na jakist’ tomatnyh sousiv [Technological properties of the indicator "water activity" and its impact on the quality of tomato sauces]. Mizhnarodnyj naukovyj zhurnal "Internauka" – International Scientific Journal "Internauka", 2(10), 11-14 [in Ukrainian].
Bal’-Prylypko, L., Kryzhova, Ju., & Garmash, O. (2017). Vykorystannja fermentnyh preparativ pry vyrobnyctvi varenyh kovbas [The use of enzyme preparations in the production of cooked sausages]. Prodovol’cha industrija APK, 5, 11-15 [in Ukrainian].
Water Activity in Foods: Fundamentals and Applications. (2007). Gustavo V., Barbosa-Canovas, Anthony J., Fontana Jr., Shelly J., Schmidt, & Theodore P., Labuza (Eds.). Blackwell Publishing and the Institute of food Technologies. ISBN: 978-0-813-82408-6 [in English].
Mikrobiologija harchovyh produktiv i kormiv dlja tvaryn. Metod vyznachennja aktyvnosti vody [Microbiology of food and animal feed. Method for determining water activity]. (2007). DSTU ISO 21807:2007 [in Ukrainian].
Kotjuk, O. V., & Mel’nyk, V. M. Rol’ aktyvnosti vody u harchovyh produktah. Voda v harchovij promyslovosti [The role of water activity in food products. Water in the food industry]. (2014). Zbirnyk tez dopovidej V vseukrai’ns’koi’ naukovo-praktychnoi’ konferencii’ z mizhnarodnoju uchastju – Collection of reports abstracts of the V All-Ukrainian scientific and practical conference with international participation. (pp. 42-43). Odesa: Odes’ka nacional’na akademija harchovyh tehnologij [in Ukrainian].
Onofrijchuk, O. S., Kurkchi, A. V., & Kohan, O. O. (2021). Pokaznyk aktyvnosti vody dlja prognozuvannja povedinky pomadnyh cukerok na osnovi riznogo vuglevodnogo skladu pid chas i’h zberigannja [Water activity index for predicting the behavior of fondant candies based on different carbohydrate composition during its storage]. Naukovi zdobutky molodi – vyrishennju problem harchuvannja ljudstva u XXI stolitti – Scientific achievements of young people - for solving the problems of human nutrition in the XXI century: Proceedings of the 87 International Scientific Conference Young Scientists, Postgraduate and Students. Part. 1, 129. Kyi’v: NUHT [in Ukrainian].
Ovsijenko, K. V., & Grek, O. V. (2019). Doslidzhennja aktyvnosti vody syrovatkovershkovyh syriv [Study of water activity of whey-cream cheeses]. Naukovi problemy harchovyh tehnologij ta promyslovoi’ biotehnologii’ v konteksti jevrointegracii’ – Scientific problems of food technologies and industrial biotechnology in the context of European integration: Proceedings from VIII International Scientific and Technical Conference. (pp. 442-444). Kyi’v: NUHT [in Ukrainian].
Gregirchak, N. M., Ukrai’nec’, O. O., Zvjaginceva-Semenec’, Ju. P., Kobylins’ka, O. V., & Kambulova, Ju. V. (2017). Mikrobiologichnyj analiz vershkovyh kremiv ponyzhenoi’ zhyrnosti [Microbiological analysis of low-fat creams]. Naukovi praci Nacional’nogo universytetu harchovyh tehnologij – Scientific works of the National University of Food Technologies, 3(23), 238-245 [in Ukrainian].
Koval’, O. A., & Guc’, V. S. (2019). Modeljuvannja zminy jakosti harchovyh produktiv za pokaznykom aktyvnosti vody [Modeling of food quality change by water activity indicator]. Naukovi zdobutky molodi – vyrishennju problem harchuvannja ljudstva u XXI stolitti – Scientific achievements of young people – for solving the problems of human nutrition in the XXI century: proceedings of the 85th Anniversary International Conference of young scientists, postgraduate students and students, dedicated to the 135th Anniversary of the National University of Food Technologies. Part. 3, 360. Kyi’v: NUHT [in Ukrainian].
Konservy molochni. Moloko nezhyrne zgushhene z cukrom. Tehnichni umovy [Canned milk. Low-fat condensed milk with sugar. Specifications]. (2009). DSTU 6063:2008. Kyi’v: Derzhspozhyvstandart Ukrai’ny [in Ukrainian].
Moloko ta vershky suhi. Tehnichni umovy [Dry milk and cream. Specifications]. (2015). DSTU 4273:2015. Kyi’v: DP "UkrNDNC" [in Ukrainian].
Produkty molochni. Metody vyznachennja masovoi’ chastky vology v molochnyh suhyh i zgushhenyh produktah ta molokovmisnyh konservah [Dairy products. Methods for determining the mass fraction of moisture in milk dry and condensed products and canned milk]. (2016). DSTU 8574:2015. Kyi’v: DP "UkrNDNC" [in Ukrainian].
Konservy molochni. Vyznachennja sahariv jodometrychnym metodom [Canned milk. Determination of sugars by iodometric method]. (2014). DSTU 7381:2013. Kyi’v: Minekonomrozvytku Ukrai’ny [in Ukrainian].
Moloko. Vyznachennja vmistu azotu. Ch. 2. Metod K’jel’dalja. Metod iz vykorystannjam bloku dlja spaljuvannja (makrometod) (ISO 8968-2:2001, IDT; IDF 20-2:2001, IDT) [Milk. Determination of nitrogen content. Part 2. Kjeldahl method. Method using a combustion unit (macromethod) (ISO 8968-2: 2001, IDT; IDF 20-2: 2001, IDT)]. (2005). DSTU ISO 8968-2:2005 (IDF 20-2:2001). Kyi’v: Derzhspozhyvstandart Ukrai’ny [in Ukrainian].
Mikrobiologija harchovyh produktiv i kormiv dlja tvaryn. Goryzontal’nyj metod pidrahunku mikroorganizmiv. Tehnika pidrahuvannja kolonij za temperatury 30 oS (ISO 4833:2003, IDT) [Microbiology of food products and animal feed. Horizontal method of counting microorganisms. Colonies counting technique at 30 ° C (ISO 4833: 2003, IDT)]. (2006). DSTU ISO 4833:2006. Kyi’v: Derzhspozhyvstandart Ukrai’ny [in Ukrainian].
Ermolaev, V. A., & Shushpannikov, A. B. (2010). Issledovanie pokazatelja aktivnosti vody suhih molochnyh produktov [Study of water activity index of dry dairy products]. Tehnika i tehnologija pishhevyh proizvodstv – Technique and technology of food production, 2(17), 84-88. ISSN: 2074-9414eISSN: 2313-1748 [in Russian].
Minorova, A. V., Krushel’nyc’ka, N. L., Rudakova, T. V., Moisejeva, L. O., & Narizhnyj, S. O. (2020). Ocinka jakosti suhyh molochnyh bagatokomponentnyh
sumishej na pryncypah kvalimetrii’ [Quality evaluation of dry milk multicomponent mixtures on the principles of qualimetry]. Prodovol’chi resursy – Food resources, 15, 139-150. https://doi.org/10.31073/foodresourses2020-15-15 [in Ukrainian].
Minorova, A. V., Rudakova, T. V., & Krushel’nyc’ka, N. L. (2020). Biologichna cinnist’ suhyh molochnyh bagatokomponentnyh sumishej [Biological value of dry milk multicomponent mixtures]. Prodovol’chi resursy – Food resources, 14, 125-136. https://doi.org/10.31073/foodresources2020-14-13 [in Ukrainian].
