Comparative efficiency of the absorption capacity of feed additives-sorbents with methylene indicators

Currently, a sufficient number of new feed additives appear on the country's market, which manufacturers declare as enterosorbents. The most accessible and less labor-intensive method for establishing the total absorption capacity of an additive is spectrophotometry. The aim of our work was a comparative analysis of the absorption of domestic enterosorbents using various methylene indicators. The research work was carried out on the basis of the GBPOU OK "Yugo-Zapad" according to generally accepted methods. To ensure the validity of the results obtained, we set up a parallel for each sample. The article presents extensive photographic material revealing the stages of the scientific research. We studied five samples of enterosorbents, which are freely available on the consumer market. In order to avoid advertising/anti-advertising, all samples were encrypted and will be made public after a set of methods. Based on the conducted research, we found that when enterosorbents were exposed to methylene violet, the top three were samples from samples No. 2, No. 1 and No. 3, for which the efficiency of the optical density of the solution, compared to the control sample, was at the level of 70.3%, 53.9% and 54.4%, respectively. When studying the general absorption capacity of enterosorbents with methylene orange, the best results were shown by samples No. 2, No. 5 and No. 1, the efficiency of which was 98.5%, 96.3% and 84.2%, compared to the control. In a comparative analysis of the control values of various indicators, the difference was 32.4%, and in the samples 1.6-18.9%, which indicates the reliability of the results obtained. The mass of absorbed indicators methylene violet and methylene orange in all samples of enterosorbents was practically the same. Based on the results obtained, we believe that the determination of the absorption capacity of various substances by spectrophotometric means, using methylene violet and methylene orange indicators, can be carried out equally.

1. P'yanova L.G. et al. Adsorption of methylene blue and methianyl yellow dyes by modified carbon sorbents. Russian Journal of Applied Chemistry. 2017;90(12):1678–1682. (in Russ)

2. GOST R 58410-2019 (ISO 18417:2017) Carbon iodine sorbents for nuclear installations. Method for determining the sorption capacity index. Moscow: Standartinform; 2019: 20 p. (in Russ)

3. Golushko V.M., Kapitonova E.A. Comparative analysis of the use of biologically active drugs and their impact on the quality of livestock products. Scientific Notes of the Educational Institution "Vitebsk Order of the Badge of Honor" State Academy of Veterinary Medicine". 2008;44(2-1):174–177. (in Russ)

4. Elchishcheva Yu.B. Spectrophotometric Methods of Analysis: A Tutorial. Perm State Research University: Electronic Data. Perm; 2023. 188 p. (in Russ)

5. Kokh E.S., Gavrilov A.S. Development of a Methodology for Analyzing the Sorption Activity of Activated Chaga Powder. Proceedings of the Conference "Pharmacy and Public Health", Yekaterinburg; 2014: 421 p. (in Russ)

6. Kochish I.I., Kapitonova E.A., Nikulin V.N. Efficiency of Zeolite-Containing Additives in Broiler Poultry Farming. Bulletin of the Orenburg State Agrarian University. 2020; 3 (83): 329-334. (in Russ)

7. Okolelova T.M. Production Risks in Industrial Poultry Farming and Loss Minimization: Monograph. Minsk: Information and Communication Center of the Ministry of Finance; 2024: 104 p. (in Russ)

8. RMG 61-2010 GSI. Accuracy, Trueness, and Precision Indicators for Quantitative Chemical Analysis Methods. Evaluation Methods. Uralsk; 2010: 58 p. (in Russ)

9. Ulimbashev MB, Golembovsky VV, Kapitonova EA, et al. Livestock Product Production and Processing Technology: A Tutorial. North Caucasus Federal Scientific Center. Stavropol: Stavropol-Service-School Publishing House; 2024: 207 p. (in Russ)

10. Yanchenko VV, Kapitonova EA. Results of Determining the Total Sorption Capacity of Methylene Blue with Respect to the Bypass Regulatory Complex. Current issues in biology, biotechnology, veterinary science, animal science, commodity science and processing of raw materials of animal and plant origin: Proceedings of the national scientific and practical conference, April 1, 2021: in 2 parts. Moscow State Academy of Veterinary Medicine and Biotechnology – MBA named after K.I. Skryabin. Moscow; 2021; II: 58-59. (in Russ)