scholarly journals Development of a complex of detergents for membrane units in the dairy industry

2021 ◽  
Vol 14 ◽  
pp. 89-99
Author(s):  
Y.V. Matveichuk ◽  
◽  
D.V. Stanishevskii ◽  
Keyword(s):  
Electrical Conductivity ◽  
Mass Fraction ◽  
Dairy Industry ◽  
Total Acidity ◽  
Microbiological Contamination ◽  
Acid Base ◽  
Redox Titration ◽  
Dairy Plant ◽  
Active Substances

Aim. Development of a complex of detergents (acidic, alkaline, enzymatic, chlorine-containing, surfactant-containing additives) for membrane units used in the dairy industry. Materials and Methods. Methods for controlling the concentration of active substances in concentrates of agents are given on the example of KATELON 202 - determination of total acidity by the method of acid-base potentiometric titration (in terms of HNO3) and KATELON 114 – determination of the mass fraction of active chlorine by redox titration. Results. A complex of detergents for membrane plants (ultrafiltration (UV, UF), microfiltration (MF, MF), nanofiltration (NF, NF), reverse osmosis (RO, RO)), used in the dairy industry and including alkaline non-foaming, medium-, low-foam products KATELON 109, KATELON 110, KATELON 115; alkaline chlorine-containing non-foamy agent KATELON 114; acid non-foamy KATELON 202, KATELON 207, KATELON 208; high-foam neutral additives KATELON 308 and KATELON 309 – enhancers of the washing effect for KATELON 109, KATELON 110, KATELON 115; preservative non-foaming additive KATELON 310 for protection from microbiological contamination; enzyme medium supplement KATELON 601. The composition of all products, their brief characteristics and physicochemical indicators, as well as an approximate program of washing with a complex of developed preparations are given. The dependences of pH and electrical conductivity were obtained for KATELON 109, KATELON 110, KATELON 115, KATELON 202, KATELON 207, KATELON 208. Conclusion. The complex of detergents is successfully used at Kopylsky Butter Cheese Plant, Lyubansky Cheese Making Plant, Minsk Dairy Plant No. 1, Verkhnedvinsky Butter and Cheese Plant, Molodechno Dairy Plant, Volozhin production site of Minsk Dairy Plant No. 1, Tolochin Branch of Lepel Dairy Canning Plant.

scholarly journals Quality control of agricultural products (corn grain and sunflower seeds) criterion for the content of pesticide residues

2016 ◽  
pp. 278-283
Author(s):  
L.N. Chervyakova ◽  
T.P. Panchenko ◽  
N.M. Adamenko
Keyword(s):  
Quality Control ◽  
Mass Fraction ◽  
Phosphorous Acid ◽  
Agricultural Products ◽  
Photometric Method ◽  
Sunflower Seeds ◽  
Method Of Determination ◽  
Active Substances ◽  
Corn Grain

The method of determination of phosphorous acid and aluminum phosphite photometric method which allows to evaluate the mass fraction of active substances in the grain of corn and sunflower seeds, and gives the ability to control their content at the level of hygienic standards.

Determination of 5-hydroxymethylfurfural after Winkler and by the HPLC method for authentication of honey

2006 ◽  
Vol 60 (3) ◽  
Author(s):  
K. Kukurova ◽  
J. Karovičová ◽  
G. Greif ◽  
Z. Kohajdová ◽  
J. Lehkoživová
Keyword(s):  
Electrical Conductivity ◽  
Physicochemical Parameters ◽  
Separation Efficiency ◽  
Hplc Method ◽  
Total Acidity

AbstractThe quality and authenticity of commercially available honey from Slovak market and the development of HPLC method for determination of hydroxymethylfurfural (HMF) content of honey with fine separation efficiency, sensitivity, applicability, and recovery was evaluated.Physicochemical parameters (moisture, total acidity, content of proline, saccharides, and value of electrical conductivity) have been determined.

scholarly journals Determination of Surface Acidity on The Natural and Synthetic Montmorillonite Clays by Titration Method

2021 ◽  
Vol 9 (2) ◽  
pp. 94-98
Author(s):  
Serly J. Sekewael
Keyword(s):  
Surface Acidity ◽  
Acid Sites ◽  
Total Acidity ◽  
Ftir Analysis ◽  
Acid Base ◽  
Absorption Bands ◽  
Titration Method ◽  
Montmorillonite Clays ◽  
Natural And Synthetic

Determination of surface acidity on the natural and synthetic montmorillonite clays has been carried out using the acid-base titration method to count the number of bound acid sites per gram of clay. The total acidity of natural and synthetic montmorillonite surfaces obtained was 4.67 and 5.33 mmol/g, respectively. FTIR analysis results indicate the presence of functional groups from the tetrahedral and octahedral constituents. Both samples have similar absorption patterns. The similarity of absorption patterns was followed by a decrease in intensity and shift in some absorption bands, and the appearance of new absorption bands.

scholarly journals CHARACTERIZATION OF SERBIAN SUNFLOWER HONEYS BY THEIR PHYSICOCHEMICAL CHARACTERISTICS

2021 ◽  
Author(s):  
Nenad Popov ◽  
Milica Živkov Baloš ◽  
Sandra Jakšić ◽  
Vladimir Polaček
Keyword(s):  
Electrical Conductivity ◽  
Water Content ◽  
Physicochemical Parameters ◽  
Mass Fraction ◽  
Physicochemical Characteristics ◽  
Total Acidity ◽  
Mean Values ◽  
Significant Difference ◽  
The Mean

Abstract: Five physicochemical parameters (water content, electrical conductivity, total acidity (pH), ash mass fraction and concentration of free acids) were analyzed in 15 sunflower honeys collected from several localities in Vojvodina, Republic of Serbia. The mean values of analyzed honeys were: water content 16.87%; concentration of free acids 27.43 mEq/kg; electrical conductivity 0.34 mS/cm; pH 3.64. The selected physicochemical characteristics of all honey samples from Serbia analyzed in this research can be considered to be within the parameters expected for sunflower honey in general. The values for ash mass fraction, electrical conductivity and concentration of free acids in all sunflower honey samples showed similar trends. High correlation was established between electrical conductivity and ash mass fraction. Statistically significant difference at p≤0.05 (p=0.017) was established only for average values of free acids concentration between honey samples originating from the localities Kanjiža and Čelarevo. All of the analyzed honeys were found to meet national and European legislation for all investigated parameters. Therefore, further research on physicochemical properties of sunflower honey is required to confirm the quality and authenticity of this product and for better understanding the benefits of this honey.

scholarly journals Characterization of Serbian sunflower honeys by their physicochemical characteristics

2021 ◽  
Vol 48 (1) ◽  
pp. 1-8
Author(s):  
Milica Živkov-Baloš ◽  
Sandra Jakšić ◽  
Nenad Popov ◽  
Vladimir Polaček
Keyword(s):  
Electrical Conductivity ◽  
Water Content ◽  
Physicochemical Parameters ◽  
Mass Fraction ◽  
Physicochemical Characteristics ◽  
Total Acidity ◽  
Mean Values ◽  
Significant Difference ◽  
The Mean

Five physicochemical parameters (water content, electrical conductivity, total acidity (pH), ash mass fraction and concentration of free acids) were analyzed in 15 sunflower honeys collected from several localities in Vojvodina, Serbia. The mean values of analyzed honeys were: water content 16.87%; concentration of free acids 27.43 mEq/kg; electrical conductivity 0.34 mS/cm; pH 3.64 and ash mass fraction 0.13%. The selected physicochemical characteristics of all honey samples from Serbia analyzed in this research can be considered to be within the parameters expected for sunflower honey in general. The values for ash mass fraction, electrical conductivity and concentration of free acids in all sunflower honey samples showed similar trends. High correlation was established between electrical conductivity and ash mass fraction. Statistically significant difference (p≤0.05) was established only for average values of free acids concentration between honey samples originating from the localities Kanjiža and Čelarevo. All of the analyzed honey samples were found to meet national and European legislation for investigated parameters

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