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- Keyword
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- Extract (4)
- Pichia pastoris (3)
- Recombinant proteins (3)
- Anthocyanin (2)
- Bombyx mori (2)
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- Coloring matter (2)
- Complexes (2)
- Concentrate (2)
- Coomassie G-2 (2)
- Electrophoresis “Native PAGE" (2)
- Gel filtration (2)
- Glycyrrhizinic acid (2)
- Immobilization (2)
- Lipase (2)
- Phytohormones (2)
- Sephadex (2)
- Spectroscopy (2)
- Stability constant (2)
- Ammonium sulfate (1)
- Bacterial polysaccharides (1)
- Biodiesel (1)
- Biological additives (1)
- Biotransformation (1)
- Bitter almond oil (1)
- Centrifugation (1)
- Chamomile flowers (1)
- Chromatography (1)
- Dried baker’s yeast (1)
- Element content (1)
- Ethanol (1)
Articles 1 - 14 of 14
Full-Text Articles in Biochemical and Biomolecular Engineering
Reduction Of Volatile Acidity Of Grape Wines By Immobilized Lipase, Azamhon Kh. Khasanov, Barno A. Abdullaeva, Xasan T. Khasanov
Reduction Of Volatile Acidity Of Grape Wines By Immobilized Lipase, Azamhon Kh. Khasanov, Barno A. Abdullaeva, Xasan T. Khasanov
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of this work is to study the enzymatic transformation of acetic acid into ethyl acetate by immobilized lipases of the fungus Rhizopus microsporus UzLT-1 obtained on the basis of silica gel and phosphatidylethanolamine to reduce the content of volatile acids in grape wines. In the work, a preparation of lipase from the fungus Rhizopus microspores was used. Lipolytic activity was measured by photocolorimetric method using rhodamine 6G as a chromophore agent. The catalytic property of lipolytic enzymes from the fungus Rh.microsporus immobilized on the surface of silica gel coated with polyamides and modified cephalin in aqueous-alcoholic media was …
The Effectiveness Of Certain Biological Additives Considered By-Products Of The Food Industry In Baker’S Yeast Activation, Nataliya E. Kulikova, Antonina G. Chernobrovina, Natalia N. Roeva
The Effectiveness Of Certain Biological Additives Considered By-Products Of The Food Industry In Baker’S Yeast Activation, Nataliya E. Kulikova, Antonina G. Chernobrovina, Natalia N. Roeva
CHEMISTRY AND CHEMICAL ENGINEERING
One of the ways to increase the efficiency of the activation process of baking yeast is the use of waste and by-products of the food industry as nutrient media. The goal of the study was to develop ways to activate yeast in a nutrient medium with dietary supplements: potato cell sap, whey and quince pomace powder. We demonstrated the effectiveness of the use of biological additives (potato cell juice, quince pomace powder, whey), which are waste or by-products of the food industry to activate yeast. We have established that incubation in a nutrient medium with dietary supplements has a beneficial …
Physical And Chemical Properties, Elemental Composition And Microbiological Purity Of Oil Extract Of Chamomile Flowers In Bitter Almond Oil, Khakim Tukhtaev, Sevara Khazratkulova
Physical And Chemical Properties, Elemental Composition And Microbiological Purity Of Oil Extract Of Chamomile Flowers In Bitter Almond Oil, Khakim Tukhtaev, Sevara Khazratkulova
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of the study was to obtain an oil extract with the participation of chamomile officinalis (Matrigaria Recutito) grown in the Tashkent region using bitter almond oil (Amygdalus communis L.). Its chromatographic and elemental analyzes have been carried out, its microbiological purity and physicochemical constants have been determined. For extraction, we used bitter almond oil obtained by cold pressing. Extraction of chamomile flowers in bitter almond oil was carried out by maceration in the ratio of raw material: solvent (1:10). Analysis of fatty acids in the fatty extract was carried out chromatographically. The fatty extract was found to contain …
Obtaining Of Bacterial Polysaccharides, Kulonov Abdulaziz, Mirzarakhmetova Dilbar, Turaeva Nigora
Obtaining Of Bacterial Polysaccharides, Kulonov Abdulaziz, Mirzarakhmetova Dilbar, Turaeva Nigora
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of this work was to develop a technology for obtaining bacterial exopolysaccharides. The problem was solved by using the bacterial strain Halovibrio variabilis UzAS3 as a polysaccharide producer. The optimal parameters of bacterial cultivation have been determined. A technological scheme for obtaining bacterial polysaccharides has been developed, which includes such stages as the cultivation of bacteria, the separation of bacterial biomass from the culture liquid, desalting, precipitation, washing and drying. The obtained results show that bacteria have a high potential for the yield of bacterial exopolysaccharides (7.1-9.5 mg/ml).
Optimal Conditions Of Fermentation Of The Pichia Pastoris Yeast Expressing The Recombinant Pres2-S Protein (M-Hbsag) Of Hepatitis B Virus (Hbv), Sasmakоv Sobirdjan, Ashirоv Оybek, Abdurakhmanоv Jaloliddin, Xasanоv Shuhrat
Optimal Conditions Of Fermentation Of The Pichia Pastoris Yeast Expressing The Recombinant Pres2-S Protein (M-Hbsag) Of Hepatitis B Virus (Hbv), Sasmakоv Sobirdjan, Ashirоv Оybek, Abdurakhmanоv Jaloliddin, Xasanоv Shuhrat
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of this study is determination of optimal fermentation conditions of the Pichia pastoris yeast expressing the recombinant Pres2-S protein of hepatitis B virus (HBV). For this purpose we investigated the main factors influencing for the cultivation of recombinant strain of the yeast Pichia pastoris pPIC3,5-S-HBsAg - the composition of the nutrient medium, pH and dissolved oxygen (DO). As a result, by enzyme-linked immunosorbent assay (ELISA) the optimal concentration of methanol ≈1.0 %, which is the initiator and the only source of carbon for protein expression in the Mut+ phenotype Pichia pastoris yeast cells was determined. In the selected …
Physical And Chemical Characteristics Of Supramolecular Complexes Of Glycirrizinic Acid With Phytohormones, Djuraev Tulqin, Esanov Rakhmatillo, Gafurov Makhmudjon, Kushiev Khabibjon
Physical And Chemical Characteristics Of Supramolecular Complexes Of Glycirrizinic Acid With Phytohormones, Djuraev Tulqin, Esanov Rakhmatillo, Gafurov Makhmudjon, Kushiev Khabibjon
CHEMISTRY AND CHEMICAL ENGINEERING
The process of formation of supramolecular complexes of glycyrrhizinic acid with some phytohormones (indolylacetic acid, indolylbutyric acid, α-naphthyl acetic acid and kinetin) were studied with the aim of creation the plant growth stimulator. The complexes structure was studied using IR and UV spectroscopy methods. The prepared compounds described by some physicochemical parameters. The stability constants and stoichiometric composition of complexes were determined in an aqueous solution at pH of 7,2 using UV spectrometry method. In result, all complexes have composition as 1:1 ratio, except the kinetin complex which has 2:1 ratio. The stability constants were equal: KGA:IAA=1,86±1×104; KGA:IBA=2,51±1×103; KGA:NAA =2,70±1×103 …
Study Of The Process For The Removal Of Dyeing Matters Of The Plant Occimum Basilicum L. Lamiaceae, Usmonjonova Khulkar, Atkhamova Saida, Dodaev Kuchkor
Study Of The Process For The Removal Of Dyeing Matters Of The Plant Occimum Basilicum L. Lamiaceae, Usmonjonova Khulkar, Atkhamova Saida, Dodaev Kuchkor
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of the work is dedicated isolation of anthocyanins by ethanol from herbal plant of Occimum basilicum L. Lamiaceae basis. The were studied influencing of temperature, concentration of ethanol to isolation of anthocyanins. There were passed investigations on studying influence level of heating and hydromodule system of rav material-solvent to maximal isolating of anthocyanins. The colors define by fotokolorometrical method at wave length 400-600 nm. There are shown at 540 nm maximal peak of anthocyanins and it is geven as a grapfical diagram. From the obtained depends on content of alcohol in aquatic solution from outlet of colors is …
Study Of Recombinant Protein Fractions From The Bombyx Mori And Pichia Pastoris Using "Native Page" Method, Abdurhakhmanov Jaloliddin, Sasmakov Sobirdjan, Khasanov Shuhrat, Ashirov Оybek
Study Of Recombinant Protein Fractions From The Bombyx Mori And Pichia Pastoris Using "Native Page" Method, Abdurhakhmanov Jaloliddin, Sasmakov Sobirdjan, Khasanov Shuhrat, Ashirov Оybek
CHEMISTRY AND CHEMICAL ENGINEERING
We have studied the recombinant protein fractions of ̴ 24-34 kDa obtained from Bombyx mori - silkworm larvae and yeast Pichia pastoris. Fractions, containing the recombinant proteins by gel-electrophoresis using the “Native PAGE” method, which allows for differentiation of proteins according to their natural (surface) charge and conformational properties were studied. The results showed that the recombinant protein fraction from Bombyx mori (̴ 34 kDa) consisted of four components and fraction from Pichia pastoris (̴ 24 kDa) consisted one component. The most optimal conditions for the “Native PAGE”- the main gel: Tris HCl (pH-8.8) 244 mM, Bis-Acrylamide 10%, TEMED 0.08%, …
Physical And Chemical Characteristics Of Supramolecular Complexes Of Glycirrizinic Acid With Phytohormones, Djuraev Tulqin, Esanov Rakhmatillo, Gafurov Makhmudjon, Kushiev Khabibjon
Physical And Chemical Characteristics Of Supramolecular Complexes Of Glycirrizinic Acid With Phytohormones, Djuraev Tulqin, Esanov Rakhmatillo, Gafurov Makhmudjon, Kushiev Khabibjon
CHEMISTRY AND CHEMICAL ENGINEERING
The process of formation of supramolecular complexes of glycyrrhizinic acid with some phytohormones (indolylacetic acid, indolylbutyric acid, α-naphthyl acetic acid and kinetin) were studied with the aim of creation the plant growth stimulator. The complexes structure was studied using IR and UV spectroscopy methods. The prepared compounds described by some physicochemical parameters. The stability constants and stoichiometric composition of complexes were determined in an aqueous solution at pH of 7,2 using UV spectrometry method. In result, all complexes have composition as 1:1 ratio, except the kinetin complex which has 2:1 ratio. The stability constants were equal: KGA:IAA=1,86±1×104; KGA:IBA=2,51±1×103; KGA:NAA =2,70±1×103 …
Study Of The Process For The Removal Of Dyeing Matters Of The Plant Occimum Basilicum L. Lamiaceae, Usmonjonova Khulkar, Atkhamova Saida, Dodaev Kuchkor
Study Of The Process For The Removal Of Dyeing Matters Of The Plant Occimum Basilicum L. Lamiaceae, Usmonjonova Khulkar, Atkhamova Saida, Dodaev Kuchkor
CHEMISTRY AND CHEMICAL ENGINEERING
The aim of the work is dedicated isolation of anthocyanins by ethanol from herbal plant of Occimum basilicum L. Lamiaceae basis. The were studied influencing of temperature, concentration of ethanol to isolation of anthocyanins. There were passed investigations on studying influence level of heating and hydromodule system of rav material-solvent to maximal isolating of anthocyanins. The colors define by fotokolorometrical method at wave length 400-600 nm. There are shown at 540 nm maximal peak of anthocyanins and it is geven as a grapfical diagram. From the obtained depends on content of alcohol in aquatic solution from outlet of colors is …
Study Of Recombinant Protein Fractions From The Bombyx Mori And Pichia Pastoris Using "Native Page" Method, Abdurhakhmanov Aloliddin, Sasmakov Sobirdjan, Khasanov Shuhrat, Ashirov Оybek
Study Of Recombinant Protein Fractions From The Bombyx Mori And Pichia Pastoris Using "Native Page" Method, Abdurhakhmanov Aloliddin, Sasmakov Sobirdjan, Khasanov Shuhrat, Ashirov Оybek
CHEMISTRY AND CHEMICAL ENGINEERING
We have studied the recombinant protein fractions of ̴ 24-34 kDa obtained from Bombyx mori - silkworm larvae and yeast Pichia pastoris. Fractions, containing the recombinant proteins by gel-electrophoresis using the “Native PAGE” method, which allows for differentiation of proteins according to their natural (surface) charge and conformational properties were studied. The results showed that the recombinant protein fraction from Bombyx mori (̴ 34 kDa) consisted of four components and fraction from Pichia pastoris (̴ 24 kDa) consisted one component. The most optimal conditions for the “Native PAGE”- the main gel: Tris HCl (pH-8.8) 244 mM, Bis-Acrylamide 10%, TEMED 0.08%, …
Gradient Precipitation Of Recombinant Proteins Contained In Silkworm Larvae (Bombyx Mori) With Ammonium Sulphate, Abdurhakhmanov Jaloliddin, Sasmakov Sobirdjan, Khasanov Shuhrat, Ashirov Оybek
Gradient Precipitation Of Recombinant Proteins Contained In Silkworm Larvae (Bombyx Mori) With Ammonium Sulphate, Abdurhakhmanov Jaloliddin, Sasmakov Sobirdjan, Khasanov Shuhrat, Ashirov Оybek
CHEMISTRY AND CHEMICAL ENGINEERING
We investigated the protein extract of silkworm larvae. For the first time, an extract containing proteins from silkworm larvae, obtained by fractional precipitation using ammonium sulfate, was studied. As a result of experiment is established, that solutions of ammonium sulfate with a concentration from 20% to 65% are optimal for the sedimentation of protein molecules with a mass in the range of 25 and 45 kDa. Optimal results of the study proposed to use in the process of purification of recombinant proteins.
Selection Of Optimal Conditions For The Cultivation Of Insect Cells For Use In Biotechnology, Khasanоv Shuhrat, Sasmakоv Sobir, Abdurakhmanоv Jaloliddin, Ashirоv Оybek
Selection Of Optimal Conditions For The Cultivation Of Insect Cells For Use In Biotechnology, Khasanоv Shuhrat, Sasmakоv Sobir, Abdurakhmanоv Jaloliddin, Ashirоv Оybek
CHEMISTRY AND CHEMICAL ENGINEERING
The article discusses use of the insect cell cultures for biotechnological purposes. Optimal conditions for the cultiva-tion of Spodoptera exigua and Lymantria dispar cell lines were selected.
Development Of A Method Of Oriented Immobilization Of Lipases On A Solid Carrier, Ziyavitdinov Jamolitdin Fazlitdinovich, Inogamov Utkir Kudratillayevich, Berdiev Nodir Sharifovich, Ishimov Uchkun Jomuradovich
Development Of A Method Of Oriented Immobilization Of Lipases On A Solid Carrier, Ziyavitdinov Jamolitdin Fazlitdinovich, Inogamov Utkir Kudratillayevich, Berdiev Nodir Sharifovich, Ishimov Uchkun Jomuradovich
CHEMISTRY AND CHEMICAL ENGINEERING
The methods of oriented immobilization of lipases on a solid carrier - Silochrome C-80 have been developed. The resulting sorbents were tested in the process of obtaining biodiesel from cotton oil. It was shown that immobilized lipase on Silochrome C-80 with NH2 group has the highest transetrification ability and stability, while in sorbents with the enzyme immobilized with -COOH and -SH groups this value was 87 and 53%, respectively. Biocatalysis using an affinity sorbent of immobilized lipase with the –NH2 group has a high operational stability, which, after 240 hours of operation, retains more than 50%, and after 480 hours, …