Abstract

The present research features the effect of technological parameters of zeolite filtration on the content of vitamins, minerals, and physico-chemical and sensory properties of milk. The zeolite was obtained from the Tarbagatai deposit (East of Kazakhstan). The authors developed a flow chart for a comprehensive experimental study of the tech-nological process. According to the developed technological scheme, the milk went through a filter containing 100–200 g of zeolite, under pressure at a pump speed of 300–400 rpm. When the frequency of the pump rpm was increased to 400 rpm, it resulted in a significant change in the content of minerals and vitamins A and E in the milk. However, the filtration triggered a decrease in the content of iron, zinc, and phosphorus ions, while the content of sodium, potassium, calcium, and magnesium increased. The content of vitamin A after the filtration decreased from 24 to 23.9–23.8 mg per 100 lilers of milk, while the content of vitamin E decreased from 0.097 to 0.095–0.092 mg per 100 liters of milk. Thus, the filtration process affected the physicochemical parameters of the milk: the frequency of the pump speed reached 400 rpm, and the content of zeolite in the filters increased up to 150 g and 200 g, while the titrated acidity fell down to 15°T. The sensory properties of the milk did not change during the filtration process. The optimal parameters for zeolite filtration of milk were established as follows: pump speed = 300 rpm; pump volumetric capacity = 10 l/min or 600 l/h; zeolite content = 200 g (80% of the filter volume).

Keywords

Milk, natural zeolite, sorption-filtering material

REFERENCES

1. Sharafiev DR, Khatsrinov AI. Analiz potrebitelʹskikh svoystva prirodnykh tseolitov v stranakh SNG [Analysis of consumer properties of natural zeolites in the CIS countries]. Bulletin of the Technological University. 2016;19(12):95–98. (In Russ.).
2. Ayar N, Keçeli G, Kurtoğlu AE, Atun G. Cationic dye adsorption onto natural and synthetic zeolites in the presence of Cs+ and Sr2+ ions. Toxicological and Environmental Chemistry. 2015;97(1):11–21. DOI: https://doi.org/10.1080/02772248.2014.949264.
3. Pritylska N, Bondarenko E. Research of prospects for using zeolites in the food industry. Eastern-European Journal of Enterprise Technologies. 2015;5(11):4–9. DOI: https://doi.org/10.15587/1729-4061.2015.51067.
4. Mitrogiannis D, Psychoyou M, Baziotis I, Inglezakis VJ, Koukouzas N, Tsoukalas N, et al. Removal of phosphate from aqueous solutions by adsorption onto Ca (OH) DOI: https://doi.org/10.1016/j.cej.2017.03.063. treated natural clinoptilolite. Chemical Engineering Journal. 2017;320:510–522.
5. Harutyunyan RS, Harutyunyan LR, Petrosyan IA, Badalyan GG, Sargsyan HO, Kuznetsova TF, et al. Sorption of Fe (III) ions from wines by acid treated zeolites. Proceedings of Universities. Applied Chemistry and Biotechnology. 2017;7(1)(20):111–118. (In Russ.). DOI: https://doi.org/10.1016/j.cej.2017.03.063.
6. Zemskov VI, Kharchenko GM. Properties of filter baffle plates made of natural zeolite. Bulletin of Altai State Agricultural University. 2014;114(4):148–152. (In Russ.).
7. Zemskov VI, Kharchenko GM. Filtering centrifuge for vegetable oil clarification based on STS-3 separator. Bulletin of Altai State Agricultural University. 2015;126(4):114–120. (In Russ.).
8. Marynchenko L, Marynchenko V, Hyvel M. Exploring the possibility of purification of water-alcohol solutions of different concentrations containing aldehydes and esters by mineral adsorbents. Eastern-European Journal of Enterprise Technologies. 2017;4(11–88):10–15. DOI: https://doi.org/10.15587/1729-4061.2017.108750.
9. Marynchenko L, Marynchenko V, Hyvel M. Research of mineral adsorbents application for water-alcohol solutions purification in technology of alcoholic beverages. EUREKA: Physics and Engineering. 2017;(4):3–10. DOI: http://doi. org/10.21303/2461-4262.2017.00397.
10. Shubina NI, Uskov GE. Methods of reduction of radionuclides in milk and dairy products. Molodezhʹ i nauka [Youth and Science]. 2016;(1):7–11. (In Russ.).
11. Donskaya GA, Mariin VA. Purification of milk from radionuclides of cesium with non-organic natural sorbent. Dairy Industry. 2014;(12):48–49. (In Russ.).
12. Kakimov AK, Kakimova ZhH, Baibalinova GM, Mirasheva GO, Amanzholov SA, Baitakova AK. Radioprotective properties of natural zeolites. Mezhdunarodnaya nauchno-prakticheskaya konferentsiya, posvyashchennaya pamyati Vasiliya Matveevicha Gorbatova [International Scientific and Practical Conference dedicated to the memory of Vasily Matveevich Gorbatov]. 2014;(1):112–113. (In Russ.).
13. Fang X-H, Fang F, Lu C-H, Zheng L. Removal of Cs+, Sr2+, and Co2+ Ions from the Mixture of Organics and Suspended Solids Aqueous Solutions by Zeolites. Nuclear Engineering and Technology. 2017;49(3):556–561. DOI: https://doi.org/10.1016/j. net.2016.11.008.
14. Lihareva N, Petrov O, Tzvetanova Y, Kadiyski M, Nikashina A. Evaluation of the possible use of a Bulgarian clinoptilolite for removing strontium from water media. Clay Minerals. 2015;50(1):55–64. DOI: https://doi.org/10.1180/ claymin.2015.050.1.06.
15. Zhan Y, Zhang Z, Gao J, Lin J, Zhang Z. Role of zeolite’s exchangeable cations in phosphate adsorption onto zirconium- modified zeolite. Journal of Molecular Liquids. 2017;243:624–637. DOI: https://doi.org/10.1016/j.molliq.2017.08.091.
16. Spiridonov AM, Sokolova MD, Okhlopkova AA, Koryakina VV, Shits EY, Argunova AG, et al. A study of the ion exchange effect on the sorption properties of heulandite–clinoptilolite zeolite. Journal of Structural Chemistry. 2015;56(2):297–303. DOI: https://doi.org/10.1134/S0022476615020134.
17. Vasileva SU, Borodina EV, Kotova DL, Krysanova TA. The kinetics sorption of the vitamin E by clinoptilolite tuff. Sorption and Chromatographic Processes. 2010;10(3):348–353. (In Russ.).
18. Mamedova GA. The ion-exchange properties of natural zeolite mordenite. Fine Chemical Technologies. 2016;11(1): 29–33. (In Russ.).
19. Samarghandi MR, Al-Musawi TJ, Mohseni-Bandpi A. Adsorption of cephalexin from aqueous solution using natural zeolite and zeolite coated with manganese oxide nanoparticles. Journal of molecular liquids. 2015;211:431–441. DOI: https://doi. org/10.1016/j.molliq.2015.06.067.
20. Zhang L, Gao XH, Zhang YH, Su Y, Zhang A-P. Effects of sodium content on physicochemical properties of usy zeolite. Rengong Jingti Xuebao/Journal of Synthetic Crystals. 2014;43(2):454–460.