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Rambler's Top100

Fat and oil processing industry №5/2015

MARKETS AND BUSINESS

High Quality of Yogurt "Sloboda"

Pluses of Ultra Pasteurized Milk

Family Farm "Bratya Cheburashkiny"

Elkhov V. N. Ice Cream Market: Results of 7 Months of Work

CONFERENCE

Dracheva L. V. Black Sea Grain and Oilseeds 2015/16

TECHNOLOGY AND ENGENEERING

Effective Technological Solutions are in Step with the Needs of the Market

Bafoeva G. N. Abdurakhimov S. A., Mazhidov K. K., Rakhimov M. N.New Trends in Technology Cottonseed Oil Catalytic Hydrogenation

P. 14-16 Keyword: high hard edible fats; hydrogenation of the catalysts; cocoa butter substitutes; New catalysts; hydrogenation technology; triacyl-glycerol structure; cottonseed oil
Abstract: The article is devoted to the development and improvement of technology for effective substitutes for cocoa butter from local raw materials. The processes of hydrogenation of cottonseed oil using different types of dispersed catalysts, including interest presented "Nisosel-8", containing salts of nickel and copper, and "Nisosel-800", manufactured by "Engelhard" (Holland). Cottonseed oil hydrogenation results using three different catalysts in the process time showed that after 2 hours of hydrogenation catalysts were all highly hard fats obtained (hardness of more than 790 g/cm by Kaminsky at 15 ° C). Catalysts "Nisosel-8" and "Nisosel-800" have a high activity and isomerizing ability. The paper found that the most interesting in terms of hydrogenation activity and isomerizing ability, are nickel-copper type catalyst "NM-4" and nickel catalysts "Nisosel-8" and "Nisosel-800." By isomerizing capacity and hardness resulting fat studied catalysts arranged in the following descending order: nickel-copper catalyst "HM 4"> nickel catalyst "Nisosel-8"> nickel catalyst "Nisosel-800"> nickel-copper catalyst of "Tashmargyog" at ratio of 1:1. Despite good performance of the nickel type catalyst "NM-4", now its industrial production because of the lack of raw material is suspended. Given the above, as well as the availability and the prospect of application in the Republic of Uzbekistan, it is better to use catalysts "Nisosel-8" and "Nisosel-800." In the preparation of solid fat, special attention is paid to the location of the fatty acid (acyl) triacylglycerols in the molecule, as it affects the structural, mechanical and rheological properties. The hydrogenation process is accompanied by a transesterification of fatty acids with regard to the nature of the catalyst used. The results of four studies transesterifying activity of dispersed catalysts. These data showed that the refined cottonseed oil TAG sn-2 position of 95 % is unsaturated acyl. A similar pattern is observed in the TAG salomas where the sn-2 position of such acids esterified to 88-90 %. Investigation of various types of catalysts, representing industrial interest showed that nickel catalysts, recovered and secure high melting fat, have a high hydrogenation, isomerization and transesterifying activity.
Authors: Bafoeva Gulzhamol Nusratovna,
Abdurakhimov Saidakbar Abdurakhmanovich, Doctor of Technical Science, Professor,
Mazhidov Kakhramon Khalimovich, Doctor of Technical Science, Professor
Rakhimov Mukhtarjon Nigmatovich, Candidate of Technical Science
Bukhara Engineering and Technological Institute,
200100, 15, K. Murtazaeva St., Bukhara, 200100, This email address is being protected from spambots. You need JavaScript enabled to view it.



Meal Cooling Technology

VEGETABLE OILS QUALITY

Sulaymanova G. K., Rakhimov M. N., Mazhidov K. K.Influence of Electromagnetic Fields on the Degree of Cottonseed Oil Purification

P. 18-19 Keyword: duration of storage; magnetic field; magnetic installations; fat oxidation; edible fats; resistant fats
Abstract: The paper studies the regularities of action of static magnetic fields (PMP) of different strengths and spatial structure in the antioxidant stabilizing oils and fats during prolonged storage. The study examined the following factors: the optimal type of magnetron; the necessary energy parameters and duration of magnetization; stage refining process oils in which the greatest effect is achieved. Magnetization was performed in the device at a value of induction of 0.25 Tesla. Samples were stored at a temperature of (4 ± 1) ° C in glass and plastic containers for 30 days, monitoring the change of peroxide, acid and color numbers. No significant differences in the properties of magnetized and non-magnetized samples were detected. There is a clear positive effect of magnetization. The data obtained allow to establish: a magnetization of a relatively weak field does not affect the hydrolysis of neutral fat contained in a water-in-oil storage conditions and a change of color; the inhibitory effect of magnetization on the oxidation process appears faster and more significant, the higher the degree of purification of oil. This is undoubtedly due to the consequent reduction of the content of anti-oxidants (mainly phospholipids) in the oil refining process; all the effects are much more pronounced when using glass containers than the polymer. To compare the effect of magnetic and electromagnetic devices magnetrons used as the most similar in structure to the field in the working channel. Studied three sample refined oil treated in the magnetron at 0.3 T IN =IN=1.95 and T in storage for 21 days at a temperature (4±1) ° C. In all cases, the magnetization of a permanent field slows down the oxidation, alternating field - accelerates. The effect of the stronger, more intense treatment. The positive effect of the constant field and the longer it is likely to lead to the formation of relatively stable complexes of active particles with a solvent (fat), and variable - to the destruction of such complexes. Experimental studies have examined the effect of magnetization on the oxidation of oils (change in peroxide value) during storage and set the temperature limits of this influence. The characteristic parameters of the connection between MP exposure and the rate of accumulation of oxidation products in edible fats and oils.
Authors: Sulaymanova Gulchekhra Khakimovna,
Rakhimov Mukhtarjon Nigmatovich, Candidate of Technical Science,
Mazhidov Kakhramon Khalimovich, Doctor of Technical Science, Professor
Bukhara Engineering and Technological Institute,
15, K. Murtazaeva St., Bukhara, 200100, This email address is being protected from spambots. You need JavaScript enabled to view it.



Yulchiev A. B.Optimization of the Process of Obtaining High-Gossipol Cottonseed Oil Using Microwave Cotton Processing

P. 20-22 Keyword: humidity; high-gossipol cottonseed oil; power; cotton processing; optimal conditions; compression; microwave cotton processing
Abstract: With the development of chemical and pharmaceutical industries to implement market appeared gossypol as a separate product. At the same time, tougher requirements for the yield and quality of produced oil. Industrial enterprises ready to implement only those new technologies that have no significant effect on the production cycle and reduce the yield and quality of the products. This forces developers to seek new ways of regulating the technological parameters of existing equipment. Efficiency of extraction of oil depends on the structure and rheological properties of the molded material. Moreover, compression molding core of cotton seeds would be ineffective, because the oil is still inside the undamaged spherosoms and globules. Even a high pressure and temperature in the press chamber not able to completely squeeze the oil from the seeds. A method for wet-heat cotton processing microwave radiation, which promotes deeper disclosure spherosoms and globules, as well as gossipol glands, which favorably affects the dissolution of gossypol in the recovered oil. The article discussed the results of the extreme design of experiments to optimize the process parameters high-gossipol produce cottonseed oil using microwave cotton processing as the most effective method. To find the optimal process parameters used extreme methods of experiment planning for the full factorial experiment plan N-23. Identified the following process conditions optimal microwave cotton processing: radiation power (X1) - 300W cotton processing humidity (X2) - 15 % of the total weight and moment of the microwave radiation (X3) - 15 min.
Authors: Yulchiev Asilbek Bakhtierbekovich
Tashkent Institute of Chemical Technology,
32, Navoi St., Tashkent, 100011, This email address is being protected from spambots. You need JavaScript enabled to view it.



FATS AND HEALTH

Jeff Talbolt, Henny Sagger. The Rise and Fall of Trans Fats

REAEARCH METHODS

Rodnikova A. A., Kulikovskaya T. S., Golyak Y. P., Sultanovich Y. A.Express Сontrol Indicators of Oxidative Deterioration of Sunflower Oil by UV Spectrophotometry

P. 30-33 Keyword: anisidine index; sunflower oil; peroxide value; Indicators of oxidative damage; UV spectrophotometry; proximate method
Abstract: Currently, rapid control of indicators of oxidative damage of fatty foods is relevant, as these figures vary quite quickly and limit regulated TR CU 024?/?2011 "Technical Regulations for Oil and Fat Products". Since 2012 GOST R 54896 "Vegetable Oils. Determination of the Quality and Safety of the Method of Spectroscopy in the Near Infrared", which involves the use of NIR analyzer to determine the parameters of oxidative spoilage. To calibrate the NIR analyzer takes a few hundred samples. The high sensitivity of the method imposes a number of restrictions: for the accuracy of the results, NIR analyzer must be in a special room with a constant temperature, which is not air flows also need to frequently check the calibration. In addition, the NIR analyzer - costly device. The method of electron paramagnetic resonance (EPR, ESR) makes it possible to obtain information about the content of the unpaired electrons in the sample, ie. Used to measure the concentration of free radicals formed in the oxidation products. This method gives a generalized description of the flow of oxidation processes. ESR analyzers are also expensive devices. To determine the peroxide value (IF) and anisidine index (ACh) by UV spectrophotometry requires a very simple and inexpensive spectrophotometer Russian production. The method does not require complicated sample preparation, expensive reagents, cleaning solvents and special training laboratory. For the first time on the basis of the experimental data set mathematical relationship between the index of oxidation by peroxide value (IO IF) and the drive for different types of sunflower oil, which is a linear equation with one variable. Knowing the mathematical equation that describes the type and grade of sunflower oil, we can determine IO drive and calculate the value of the drive. In the process of oxidation of sunflower oil rate of change of ACh is much less than the rate of change of the drive, ie. With increasing values of the drive to 10-15 mmol act. of oxygen/kg ACh practically not increased. To obtain reliable values of IE and IF index anisidine oxidation index (IO ACh) sunflower oil samples prior to the measurement must not be frozen and keep the light.
Authors: Rodnikova Anna Arkadyevna, Candidate of Biological Science,
Kulikovskaya Tatyana Semenovna
Research Institute for Storage Problems Rosrezerva,
40, Volochaevskaya St., Moscow, 111033
Golyak Yuliya Petrovna, Graduate Student
Moscow State University of Food Production,
11, Volokolamskoye Shosse, Moscow, 125080
Sultanovich Yuriy Avraamovich, Doctor of Chemical Science, Professor
Solnechnye Produkty,
3, 1st Grayvoronovsky Proezd, Moscow, 109518, This email address is being protected from spambots. You need JavaScript enabled to view it.



OIL AND FAT INDUSTRY FOR COSMETIC PRODUCTS

Saidvaliev S. S., Mamatov M. M., Mazhidov K. K., Murodov Z. S.Effect of Additives on the Soap Solutions and the Surface Tension

P. 34-36 Keyword: solid soap; soap additives; fatty acids; sodium salts; surfactants; detergency; surface tension; molecular structure; mitselleobrazovanie; carbon atoms
Abstract: Solid bar soaps cover a wide range of as household and toilet soaps. Identification and establishment of new phenomena and laws with regard to processes for the production of solid squared commodity soaps, from the processing stage hot soapy mass (melt) water solutions remove dirt washed (wash) and the impact on them, or stages, of which they are composed, the physico-chemical and colloid-chemical properties of aqueous solutions of surface-active substances (SAS), sodium soaps of fatty acids of the individual mixtures of natural blends typical soaps or indirectly own soaps is relevant and timely. The work is devoted to research and study the influence of additives on the soaps and surface tension. For studies were prepared from the chemically pure fatty acid sodium soap. It is established that, for mixtures of ionic surfactants have substantially different mitselleobrazovaniya critical concentration (SAS), the surfactant having a less tendency to form micelles, acts as an inorganic salt (electrolyte), lowering SAS other surfactants. It is hypothesized that the action of minority pair to main fatty acids can be regarded as the electrolyte. To test this hypothesis we studied the effect of additives on the surface tension of mixtures of different fatty acids to the base pair C12-C14 so that the addition of 15 % in a mixture of C8 and C10 leads to an increase in surface tension. The influence of sodium salts based on tallow (C16-C18), cottonseed oil (C16-C18), a mixture of synthetic fatty acids (C15-C16), hydrogenation of cottonseed oil (C16-C18), coconut (C12-C14) and yeast fat (C17-C18). These data show that the proposed principle of base pair separation of saturated fatty acids with a difference of one or two carbon atoms justified. For mixed micelles almost certain synergy reduce PFC single SAW to consider the interaction between surfactant Cn and Cn + 2. It should be noted that the characteristic of fats and oils, fatty acid salts, the difference in carbon atom are important in complex mixtures of fatty acid salts, where in addition to the basic binary mixtures are in smaller amounts of other salts of acids.
Authors: Saidvaliev Saidazim Saydiamirhanivich, Candidate of Technical Science,
Mamatov Maksudjon Mashrabzhanovich,
Mazhidov Kahramon Halimovich, Doctor of Technical Science, Professor,
Murodov Jamshed Sobirovich
Bukhara Engineering Institute of Technology,
15, K. Murtazaeva St, Bukhara, 200100, This email address is being protected from spambots. You need JavaScript enabled to view it.



CHRONICLE AND INFORMATION

World Food Moscow-2015

Summit "Trade in Russia-2015"

Award "Innovative Product of the Year 2015"