База данных: Статьи
Страница 1, Результатов: 13
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1.
Подробнее
24.239
C74
Comparative analysis of biologically active complexes obtained by the SCF cof method - plant extraction of plants of Daucus carota, Solanum Lycopersicum, Crataegus turkestanica A. Pojark species / Y. S. Ikhsanov [et al.] // Известия Национальной академии наук Республики Казахстан=News of National academy of sciences of the Republic of Kazakhstan. - 2019. - №5. - Р. 69-74. - (Серия химии и технологии=Series of chemistry and technology sciences)
ББК 24.239
Рубрики: Природные органические соединения и их синтетические аналоги
Кл.слова (ненормированные):
Daucus carota -- Solanum lycopersicum -- Crataegus turkestanica A. Pojark -- СКФ-экстракция -- хроматомасс спектрометрия -- Экстракция -- температурный диапазон -- Лимонен -- о-цимол -- кампестерин -- альфа-токоферол -- витамин Е -- эйкозан -- лупеол
Аннотация: В статье представлены результаты исследования качественного и количественного экстрактов, полученных методом сверхкритической флюидной экстракции углекислым газом из плодов растении daucus carota, solanum lycopersicum, crataegus turkestanica A. Pojark. Экстракция проведена на установке Thar SFE-1000 при следующих условиях: температурный диапазон в реакторе40-80ºС, давление СО2 – 180-200 бар, при потоке газа 100 мл/мин, в качестве со-растворителя был использован этиловый спирт. Полученный экстракт исследован методом газовой хроматографии, на газовом хроматографе с масс-селективным детектором Agilent Technologies 7890N/5973N GС/MS. В изучаемых экстрактах идентифицированы в Daucus carota: каротиноиды, лимонен (0,2%), о-цимол (0,29%), кариофиллен (0,3%), ацетат фитола (4,25%), эйкозан (1,2%), фалькаринол (4,5%), сквален (0,8%), витамин Е (0,6%), кампестерин (0,8%), стигмастерин (2,34%), гамма ситостерол (2,49%). Crataegus turkestanica A. Pojark: Лимонен (0,42%), о-цимол (0,28), ацетат фитола (1,45%), эйкозан (3,65%), фалькаринол (0,255%), сквален (2,0%), витамин Е (0,57%), кампестерин (0,78%), альфа-токоферол (1,83%), гамма ситостерол (4,83%). Solanum lycopersicum: Каротиноиды, эфиры жирных кислот (олеиновая, линоленовая, гексадекановая, октадекадиеновая), эйкозан (2,65%), лупеол (2,33%), ацетат фитола (1,61%), альфа-амирин (7,46%), витамин Е (1,08%), тетракозана (3,81%) Работы по исследованию экстрактов, полученных при других условиях извлечения, в данный момент продолжаются.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Ikhsanov, Y.S.
Burashev, Y.M
Seitimova, G.A.
Litvinenko, Y.A.
C74
Comparative analysis of biologically active complexes obtained by the SCF cof method - plant extraction of plants of Daucus carota, Solanum Lycopersicum, Crataegus turkestanica A. Pojark species / Y. S. Ikhsanov [et al.] // Известия Национальной академии наук Республики Казахстан=News of National academy of sciences of the Republic of Kazakhstan. - 2019. - №5. - Р. 69-74. - (Серия химии и технологии=Series of chemistry and technology sciences)
Рубрики: Природные органические соединения и их синтетические аналоги
Кл.слова (ненормированные):
Daucus carota -- Solanum lycopersicum -- Crataegus turkestanica A. Pojark -- СКФ-экстракция -- хроматомасс спектрометрия -- Экстракция -- температурный диапазон -- Лимонен -- о-цимол -- кампестерин -- альфа-токоферол -- витамин Е -- эйкозан -- лупеол
Аннотация: В статье представлены результаты исследования качественного и количественного экстрактов, полученных методом сверхкритической флюидной экстракции углекислым газом из плодов растении daucus carota, solanum lycopersicum, crataegus turkestanica A. Pojark. Экстракция проведена на установке Thar SFE-1000 при следующих условиях: температурный диапазон в реакторе40-80ºС, давление СО2 – 180-200 бар, при потоке газа 100 мл/мин, в качестве со-растворителя был использован этиловый спирт. Полученный экстракт исследован методом газовой хроматографии, на газовом хроматографе с масс-селективным детектором Agilent Technologies 7890N/5973N GС/MS. В изучаемых экстрактах идентифицированы в Daucus carota: каротиноиды, лимонен (0,2%), о-цимол (0,29%), кариофиллен (0,3%), ацетат фитола (4,25%), эйкозан (1,2%), фалькаринол (4,5%), сквален (0,8%), витамин Е (0,6%), кампестерин (0,8%), стигмастерин (2,34%), гамма ситостерол (2,49%). Crataegus turkestanica A. Pojark: Лимонен (0,42%), о-цимол (0,28), ацетат фитола (1,45%), эйкозан (3,65%), фалькаринол (0,255%), сквален (2,0%), витамин Е (0,57%), кампестерин (0,78%), альфа-токоферол (1,83%), гамма ситостерол (4,83%). Solanum lycopersicum: Каротиноиды, эфиры жирных кислот (олеиновая, линоленовая, гексадекановая, октадекадиеновая), эйкозан (2,65%), лупеол (2,33%), ацетат фитола (1,61%), альфа-амирин (7,46%), витамин Е (1,08%), тетракозана (3,81%) Работы по исследованию экстрактов, полученных при других условиях извлечения, в данный момент продолжаются.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Ikhsanov, Y.S.
Burashev, Y.M
Seitimova, G.A.
Litvinenko, Y.A.
2.
Подробнее
32.81
B75
Bolatbek, M. A
Creating the dataset of keywords for detecting an extremist orientation inweb-resources in the Kazakh language [Текст] / M.A Bolatbek // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №1(97). - Р. 134-142. - (Математика, механика, информатика сериясы=Серия математика, механика, информатика. Journal of Mathematics, Mechanics, Computer Science.)
ББК 32.81
Рубрики: Информатика
Кл.слова (ненормированные):
экстремистские тексты -- частота терминов -- классификация текста -- эмоциональные оценка
Аннотация: This paper is part of the research on creating semantic analysis models in web resources for definingan extremist orientation in the text. To solve this task a model was created, which consists of fivestages: identifying websites of an extremist groups, preparing for data extraction, data extraction,data analysis and classification. This work presents the results of data analysis stage of abovementioned model. The purpose of this study is to identify keywords, often used by extremists,which will later be used to classify texts to "extremist" and "neutral" categories using machinelearning methods. There is no such database for the Kazakh language. As the result of this studyan experimental corpus and list of keywords in Kazakh language was created. The keywords wereadded to the database with various morphological variants. The program was built that checksfor the presence of extremist keywords in the given input text and displays the words found.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Mussiraliyeva, Sh.Zh
Tukeyev, U.A
B75
Bolatbek, M. A
Creating the dataset of keywords for detecting an extremist orientation inweb-resources in the Kazakh language [Текст] / M.A Bolatbek // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №1(97). - Р. 134-142. - (Математика, механика, информатика сериясы=Серия математика, механика, информатика. Journal of Mathematics, Mechanics, Computer Science.)
Рубрики: Информатика
Кл.слова (ненормированные):
экстремистские тексты -- частота терминов -- классификация текста -- эмоциональные оценка
Аннотация: This paper is part of the research on creating semantic analysis models in web resources for definingan extremist orientation in the text. To solve this task a model was created, which consists of fivestages: identifying websites of an extremist groups, preparing for data extraction, data extraction,data analysis and classification. This work presents the results of data analysis stage of abovementioned model. The purpose of this study is to identify keywords, often used by extremists,which will later be used to classify texts to "extremist" and "neutral" categories using machinelearning methods. There is no such database for the Kazakh language. As the result of this studyan experimental corpus and list of keywords in Kazakh language was created. The keywords wereadded to the database with various morphological variants. The program was built that checksfor the presence of extremist keywords in the given input text and displays the words found.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Mussiraliyeva, Sh.Zh
Tukeyev, U.A
3.
Подробнее
28
В 92
DNA extraction from leaves of woody plants without liquid nitrogen [Текст] = Выделение ДНК из листьев древесных растений без жидкого азота / E.A. Shadenova [et al.] // Известия НАН РК. Серия биологическая и медицинская. - 2019. - №1. - С. 76-83
ББК 28
Рубрики: Биологические науки
Кл.слова (ненормированные):
ДНК -- листья -- выделение -- спектрофотометрия -- электрофорез -- древесные растения -- жидкий азот -- биология
Аннотация: В статье описывается метод быстрого и удобного выделения геномной ДНК из листьев древесных растений. В научной статье проводится проверка стандартного метода выделения геномной ДНК из 45 видов растений. Отобранные растения являются редкими и эндемичными представителями флоры Западно-Казахстанского региона и коллекционными экзотическими особями Мангышлакского экспериментального ботанического сада. Работа предполагает сравнение с модифицированным для данных видов протоколом выделения ДНК из тканей растений. В работе используются три метода анализа ДНК: визуальный (наличие или отсутствие белого осадка, загрязнение), электрофорез и спектрофотометрия. Основываясь на результатах электрофореграмм и спектрофотометрии, было принято решение для модификации протокола выделения. Модифицированный метод выделения ДНК основан на отсутствии применения жидкого азота. Весь процесс занимает не более 3 часов. В связи с высоким содержанием танинов в изучаемых видах, увеличение времени инкубации и центрифугирования благоприятно влияют на результат выделения ДНК. Данный метод позволяет получить препараты высокого качества с концентрацией ДНК 140.32 мкг. Полученный продукт ДНК можно использовать в исследованиях молекулярной генетической идентификации и сертификации растений.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Shadenova, E.A.
Mamirova, A.A.
Dzhangalina, E.D.
Kaigermazova, M.A.
Sembekov, M.
Kamidinkyzy, U.
Turganova , R.
В 92
DNA extraction from leaves of woody plants without liquid nitrogen [Текст] = Выделение ДНК из листьев древесных растений без жидкого азота / E.A. Shadenova [et al.] // Известия НАН РК. Серия биологическая и медицинская. - 2019. - №1. - С. 76-83
Рубрики: Биологические науки
Кл.слова (ненормированные):
ДНК -- листья -- выделение -- спектрофотометрия -- электрофорез -- древесные растения -- жидкий азот -- биология
Аннотация: В статье описывается метод быстрого и удобного выделения геномной ДНК из листьев древесных растений. В научной статье проводится проверка стандартного метода выделения геномной ДНК из 45 видов растений. Отобранные растения являются редкими и эндемичными представителями флоры Западно-Казахстанского региона и коллекционными экзотическими особями Мангышлакского экспериментального ботанического сада. Работа предполагает сравнение с модифицированным для данных видов протоколом выделения ДНК из тканей растений. В работе используются три метода анализа ДНК: визуальный (наличие или отсутствие белого осадка, загрязнение), электрофорез и спектрофотометрия. Основываясь на результатах электрофореграмм и спектрофотометрии, было принято решение для модификации протокола выделения. Модифицированный метод выделения ДНК основан на отсутствии применения жидкого азота. Весь процесс занимает не более 3 часов. В связи с высоким содержанием танинов в изучаемых видах, увеличение времени инкубации и центрифугирования благоприятно влияют на результат выделения ДНК. Данный метод позволяет получить препараты высокого качества с концентрацией ДНК 140.32 мкг. Полученный продукт ДНК можно использовать в исследованиях молекулярной генетической идентификации и сертификации растений.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Shadenova, E.A.
Mamirova, A.A.
Dzhangalina, E.D.
Kaigermazova, M.A.
Sembekov, M.
Kamidinkyzy, U.
Turganova , R.
4.
Подробнее
24
S53
Shaimerdenova, G. S.
Off-Balance phosphate raw materials of the Zhanatas deposit: comprehensive study of composition and structure. [Текст] / G. S. Shaimerdenova, K. T. Zhantasov, O. B. Dormeshkin, E. B. Mussirepova, B. O. Tastanbekova // News of national academy of sciences of the republic of Kazakhstan. Series of chemistry and technology sciences. - 2021. - 5-6. - P. 93-98
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
phosphorite -- IR spectrum -- elemental analysis -- mineralogy -- extraction phosphoric acid
Аннотация: The article presents the results of physicochemical studies of the composition and structure of off-balance raw material from the Zhanatas deposit, located in the phosphorite -containing depression Karatau ( South Kazakhstan).
Держатели документа:
WKU
Доп.точки доступа:
Zhantasov, K.T.
Dormeshkin, O.B.
Mussirepova, E.B.
Tastanbekova, B.O.
S53
Shaimerdenova, G. S.
Off-Balance phosphate raw materials of the Zhanatas deposit: comprehensive study of composition and structure. [Текст] / G. S. Shaimerdenova, K. T. Zhantasov, O. B. Dormeshkin, E. B. Mussirepova, B. O. Tastanbekova // News of national academy of sciences of the republic of Kazakhstan. Series of chemistry and technology sciences. - 2021. - 5-6. - P. 93-98
Рубрики: chemistry
Кл.слова (ненормированные):
phosphorite -- IR spectrum -- elemental analysis -- mineralogy -- extraction phosphoric acid
Аннотация: The article presents the results of physicochemical studies of the composition and structure of off-balance raw material from the Zhanatas deposit, located in the phosphorite -containing depression Karatau ( South Kazakhstan).
Держатели документа:
WKU
Доп.точки доступа:
Zhantasov, K.T.
Dormeshkin, O.B.
Mussirepova, E.B.
Tastanbekova, B.O.
5.
Подробнее
24
M96
Murzakassymova, N. C.
Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 75-79
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
coal -- sorbents -- modification -- sorption isotherm -- sorbent capacity -- oleum
Аннотация: The data on accumulated mining waste in the territory of Kazakhstan are presented. Their processing has become very important in our time. The structure of surface-modified carbon materials with a grafted layer is given. New modified carbon sorbents were obtained, oleum was used as a modifying agent. It was revealed that the capacitive characteristics of the modified sorbent are significantly higher than that of the original one, which will make it possible to more efficiently extract the metal ion from wastewater and technogenic formations. Sorption is an effective method of extracting valuable components from wastewater and man-made formations. This method allows you to recover valuable substances with a high degree of wastewater treatment, which can be purified to the maximum permissible concentration of pollutants and then used in technological processes or in recycling water supply systems. Processing involves ores characterized by a low content of valuable components, fine dissemination and similar technological properties of minerals. The existing technologies for the development of minerals make it possible to use only a small part of the valuable mineral mass extracted from the subsoil, and the rest forms waste, which, as it accumulates and is stored, becomes one of the most significant factors of anthropogenic changes in the environment.
Держатели документа:
WKU
Доп.точки доступа:
Bektenov, N. A.
Gavrilenko, M. A.
M96
Murzakassymova, N. C.
Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 75-79
Рубрики: chemistry
Кл.слова (ненормированные):
coal -- sorbents -- modification -- sorption isotherm -- sorbent capacity -- oleum
Аннотация: The data on accumulated mining waste in the territory of Kazakhstan are presented. Their processing has become very important in our time. The structure of surface-modified carbon materials with a grafted layer is given. New modified carbon sorbents were obtained, oleum was used as a modifying agent. It was revealed that the capacitive characteristics of the modified sorbent are significantly higher than that of the original one, which will make it possible to more efficiently extract the metal ion from wastewater and technogenic formations. Sorption is an effective method of extracting valuable components from wastewater and man-made formations. This method allows you to recover valuable substances with a high degree of wastewater treatment, which can be purified to the maximum permissible concentration of pollutants and then used in technological processes or in recycling water supply systems. Processing involves ores characterized by a low content of valuable components, fine dissemination and similar technological properties of minerals. The existing technologies for the development of minerals make it possible to use only a small part of the valuable mineral mass extracted from the subsoil, and the rest forms waste, which, as it accumulates and is stored, becomes one of the most significant factors of anthropogenic changes in the environment.
Держатели документа:
WKU
Доп.точки доступа:
Bektenov, N. A.
Gavrilenko, M. A.
6.
Подробнее
35
A44
Altayeva, A.
Study of gold extraction from stale tailings by agitation leaching. [Текст] / A. Altayeva, B. N. Surimbayev, L. S. Bolotova, Zh. Т. Bagasharova, Sh. K. Akilbekova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 89-94
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
stale tailings -- stale tailings of the processing plant -- leaching -- technogenic mineral formations -- gold
Аннотация: The object of research is technogenic mineral formations-tailings of the Bestube processing plant located within the Bestube gold field. Analytical and technological studies of stale tailings have been carried out. According to the results of analytical studies, the material composition of stale tails was established. The average gold content in stale tailings according to assay analyses is 0.565 g/t, silver 1.56 g/t. The tailings belong to the category of poor sulfide, oxidized raw materials. The main industrially valuable component in the tailings is gold, silver has a subordinate value, and other metals are not of industrial value. Mineralogical analysis established that stale tails are represented by quartz, muscovite, clinochlore, albite, dolomite. Studies were conducted on agitation leaching of stale tailings of the initial size (64.08% of the class –0.074 mm) and after additional grinding to the size of 90% of the class –0.074 mm. Reducing the size contributes to the dissolution of gold from the tailings: at the initial size, 66.28% of gold is dissolved, after regrinding the degree of dissolution of gold from the tailings increases to 87.23%. The results of research on agitation leaching of gold have shown a high efficiency of hydrometallurgical technology for processing stale tailings of a processing plant.
Держатели документа:
WKU
Доп.точки доступа:
Surimbayev, B. N.
Bolotova, L. S.
Bagasharova, Zh. Т.
Akilbekova, Sh. K.
A44
Altayeva, A.
Study of gold extraction from stale tailings by agitation leaching. [Текст] / A. Altayeva, B. N. Surimbayev, L. S. Bolotova, Zh. Т. Bagasharova, Sh. K. Akilbekova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 89-94
Рубрики: chemical Technology
Кл.слова (ненормированные):
stale tailings -- stale tailings of the processing plant -- leaching -- technogenic mineral formations -- gold
Аннотация: The object of research is technogenic mineral formations-tailings of the Bestube processing plant located within the Bestube gold field. Analytical and technological studies of stale tailings have been carried out. According to the results of analytical studies, the material composition of stale tails was established. The average gold content in stale tailings according to assay analyses is 0.565 g/t, silver 1.56 g/t. The tailings belong to the category of poor sulfide, oxidized raw materials. The main industrially valuable component in the tailings is gold, silver has a subordinate value, and other metals are not of industrial value. Mineralogical analysis established that stale tails are represented by quartz, muscovite, clinochlore, albite, dolomite. Studies were conducted on agitation leaching of stale tailings of the initial size (64.08% of the class –0.074 mm) and after additional grinding to the size of 90% of the class –0.074 mm. Reducing the size contributes to the dissolution of gold from the tailings: at the initial size, 66.28% of gold is dissolved, after regrinding the degree of dissolution of gold from the tailings increases to 87.23%. The results of research on agitation leaching of gold have shown a high efficiency of hydrometallurgical technology for processing stale tailings of a processing plant.
Держатели документа:
WKU
Доп.точки доступа:
Surimbayev, B. N.
Bolotova, L. S.
Bagasharova, Zh. Т.
Akilbekova, Sh. K.
7.
Подробнее
28
T16
Таkibayeva, А. Т.
Flavonoids of populus balsamifera plants and their biological activity. [Текст] / А. Т. Таkibayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 147-150
ББК 28
Рубрики: Biology
Кл.слова (ненормированные):
the poplars -- flavonoids -- extraction -- biological activity
Аннотация: The work is devoted to the chemical studying of the composition of flavonoids of Populus balsamifera, the isolation of individual compounds, and the establishment of their structure. Balsamic poplar plants are a promising source of many biologically active substances, and in particular, flavonoids.
Держатели документа:
WKU
Доп.точки доступа:
Amirchan, A. A.
Kalkenova, A. T.
Kulakov, I. V.
T16
Таkibayeva, А. Т.
Flavonoids of populus balsamifera plants and their biological activity. [Текст] / А. Т. Таkibayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 147-150
Рубрики: Biology
Кл.слова (ненормированные):
the poplars -- flavonoids -- extraction -- biological activity
Аннотация: The work is devoted to the chemical studying of the composition of flavonoids of Populus balsamifera, the isolation of individual compounds, and the establishment of their structure. Balsamic poplar plants are a promising source of many biologically active substances, and in particular, flavonoids.
Держатели документа:
WKU
Доп.точки доступа:
Amirchan, A. A.
Kalkenova, A. T.
Kulakov, I. V.
8.
Подробнее
35
Z63
Zhantassov, K.
Development of technology for extraction of lead and zinc oxides from dust and slags during the utilization of lead plant waste. [Текст] / K. Zhantassov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 81-85
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead waste -- oxic compounds -- lead and zinc compounds -- environmental pollution -- toxic waste processing -- waste disposal
Аннотация: The article proposes methods for the extraction of lead and zinc from slag waste and selects the optimal method for the selective extraction of zinc and lead oxides from dust and slags of lead production. The proposed technology of continuous carbon-free selective extraction of zinc and lead from the dust of electric steelmaking production allows the use of lead production slag, which is fed into a rotating drum furnace in two oppositely directed streams. During the movement of lead slag in the furnace drum and the burning of the torch, lead and zinc are more completely extracted from the dust-like material, where the transporting object is compressed air, and the purified flue gas after the gas is further purified by means of a smoke pump is released into the atmosphere.
Держатели документа:
WKU
Доп.точки доступа:
Bagova, Z.
Turebekova, G.
Sapargaliyeva, B.
Pusurmanova, G.
Z63
Zhantassov, K.
Development of technology for extraction of lead and zinc oxides from dust and slags during the utilization of lead plant waste. [Текст] / K. Zhantassov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 81-85
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead waste -- oxic compounds -- lead and zinc compounds -- environmental pollution -- toxic waste processing -- waste disposal
Аннотация: The article proposes methods for the extraction of lead and zinc from slag waste and selects the optimal method for the selective extraction of zinc and lead oxides from dust and slags of lead production. The proposed technology of continuous carbon-free selective extraction of zinc and lead from the dust of electric steelmaking production allows the use of lead production slag, which is fed into a rotating drum furnace in two oppositely directed streams. During the movement of lead slag in the furnace drum and the burning of the torch, lead and zinc are more completely extracted from the dust-like material, where the transporting object is compressed air, and the purified flue gas after the gas is further purified by means of a smoke pump is released into the atmosphere.
Держатели документа:
WKU
Доп.точки доступа:
Bagova, Z.
Turebekova, G.
Sapargaliyeva, B.
Pusurmanova, G.
9.
Подробнее
24
I-53
Ikhsanov, Y. S.
Amino acid and vitamin composition of crataegus orientalis pall. [Текст] / Y. S. Ikhsanov, K. M. Kusainova, G. Y. Tasmagambetova, N. T. Andasova, Y. A. Litvinenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 149-154
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
Crataegus -- Crataegus orientalis Pall -- amino acids -- vitamins -- SFE extraction
Аннотация: This article examines the study of the quantitative composition of amino acids and vitamins in the fruits of the species of the genus Crataegus widespread in Kazakhstan in a supercritical extract isolated and the fruits of the Crataegus orientalis Pall plant, in order to establish the possibility of using and with subsequent cultivation of the selected species.
Держатели документа:
WKU
Доп.точки доступа:
Kusainova, K. M.
Tasmagambetova, G. Y.
Andasova, N. T.
Litvinenko, Y. A.
I-53
Ikhsanov, Y. S.
Amino acid and vitamin composition of crataegus orientalis pall. [Текст] / Y. S. Ikhsanov, K. M. Kusainova, G. Y. Tasmagambetova, N. T. Andasova, Y. A. Litvinenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 149-154
Рубрики: chemistry
Кл.слова (ненормированные):
Crataegus -- Crataegus orientalis Pall -- amino acids -- vitamins -- SFE extraction
Аннотация: This article examines the study of the quantitative composition of amino acids and vitamins in the fruits of the species of the genus Crataegus widespread in Kazakhstan in a supercritical extract isolated and the fruits of the Crataegus orientalis Pall plant, in order to establish the possibility of using and with subsequent cultivation of the selected species.
Держатели документа:
WKU
Доп.точки доступа:
Kusainova, K. M.
Tasmagambetova, G. Y.
Andasova, N. T.
Litvinenko, Y. A.
10.
Подробнее
28.5
S68
Smailova, K. S.
Obtaining flavonoid from taraxacum Kok-saghyz rodin plant growing in Kazakhstan. [Текст] / K. S. Smailova, G.E. Azimbaeva, A. A. Bakibaev, M. S. Abdikerim // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 155-160
ББК 28.5
Рубрики: Botany
Кл.слова (ненормированные):
medicinal plants -- Taraxacum koksaghyz rodin -- biologically active substances -- flavonoids -- IR spectrum -- 13С -NMR
Аннотация: In recent years, the interest of researchers in the herbal preparation has grown significantly. Plants are sources of biologically active substances (BAS). In previous articles, the chemical composition and biologically active substances of plants endemic Taraxacum kok-saghyz Rodin growing in Kazakhstan has been studied. Among the BAS of plant origin, inulin and flavonoids occupy a special place. The article examines the release of inulin and flavonoid from the stem of Taraxacum kok-saghyz Rodin plants. In order to isolate a flavonoid, you first need to extract inulin. Due to the fact that in our plants, inulin accumulates up to 40%. Therefore, the first stage was to isolate inulin: with extractions 1:10 with distilled water for 60 minutes, and in the second stage, the further isolation of the residue was first dried, the dry residue was 1:10 with a ratio of 70% ethanol for 3 hours. The inulin yield was -5%, the melting point was 1300C. A The yield of flavanoid is 0.66%, the melting point is 1700 C, the aggregate state is acicular light brown light. The structure of the isolated flavonoid was determined on a Uviline 9100 spectro-photometer; the highest absorption was observed at a wavelength of 364 nm. Consequently, the structure of the isolated flavonoid coincides with the literature data. The maxima of the UV, IR, 13С -NMR. spectrum show that flavonol is a derivative.
Держатели документа:
WKU
Доп.точки доступа:
Azimbaeva, G.E.
Bakibaev, A.A.
Abdikerim, M.S.
S68
Smailova, K. S.
Obtaining flavonoid from taraxacum Kok-saghyz rodin plant growing in Kazakhstan. [Текст] / K. S. Smailova, G.E. Azimbaeva, A. A. Bakibaev, M. S. Abdikerim // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 155-160
Рубрики: Botany
Кл.слова (ненормированные):
medicinal plants -- Taraxacum koksaghyz rodin -- biologically active substances -- flavonoids -- IR spectrum -- 13С -NMR
Аннотация: In recent years, the interest of researchers in the herbal preparation has grown significantly. Plants are sources of biologically active substances (BAS). In previous articles, the chemical composition and biologically active substances of plants endemic Taraxacum kok-saghyz Rodin growing in Kazakhstan has been studied. Among the BAS of plant origin, inulin and flavonoids occupy a special place. The article examines the release of inulin and flavonoid from the stem of Taraxacum kok-saghyz Rodin plants. In order to isolate a flavonoid, you first need to extract inulin. Due to the fact that in our plants, inulin accumulates up to 40%. Therefore, the first stage was to isolate inulin: with extractions 1:10 with distilled water for 60 minutes, and in the second stage, the further isolation of the residue was first dried, the dry residue was 1:10 with a ratio of 70% ethanol for 3 hours. The inulin yield was -5%, the melting point was 1300C. A The yield of flavanoid is 0.66%, the melting point is 1700 C, the aggregate state is acicular light brown light. The structure of the isolated flavonoid was determined on a Uviline 9100 spectro-photometer; the highest absorption was observed at a wavelength of 364 nm. Consequently, the structure of the isolated flavonoid coincides with the literature data. The maxima of the UV, IR, 13С -NMR. spectrum show that flavonol is a derivative.
Держатели документа:
WKU
Доп.точки доступа:
Azimbaeva, G.E.
Bakibaev, A.A.
Abdikerim, M.S.
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