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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 6. Отображено 6.
09-05-2023 дата публикации

Zeta-like carotene synthetic gene co-expression strain as well as preparation method and application thereof

Номер: CN116083331A
Принадлежит:

The invention discloses a zeta-like carotene synthetic gene co-expression strain as well as a preparation method and application thereof. The co-expression strain is obtained by co-transforming three genes of CrtE, CrtB and CrtP, which are derived from antarctic moss, into engineering bacteria through PETduet-1 and PACYCduet-1 for co-expression respectively, wherein the three genes of CrtE, CrtB and CrtP are co-transformed into the engineering bacteria through PETduet-1 and PACYCduet-1. Compared with a zeta carotene standard substance, the zeta carotene-like product expressed by the co-expression strain has the same ultraviolet spectrum, and through DPPH, ATBS and hydroxyl radical scavenging tests, the zeta carotene-like product has relatively strong in-vitro antioxidant activity, and can be used for preparing a zeta carotene-like product. Therefore, a foundation is laid for exploring the synthesis route of carotenoids in the antarctic bryophyte and further enriching the types of carotenoids ...

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15-08-2023 дата публикации

Low-viscosity sodium alginate for soft capsules as well as preparation method and application of low-viscosity sodium alginate

Номер: CN116590364A
Принадлежит:

The invention discloses low-viscosity sodium alginate for soft capsules as well as a preparation method and application of the low-viscosity sodium alginate. The preparation method comprises the following steps: by taking common sodium alginate as a raw material, dissolving, carrying out enzymolysis by utilizing hemicellulase, carrying out alcohol precipitation, drying and crushing to obtain low-viscosity sodium alginate, and further carrying out microwave treatment on the basis to obtain the ultralow-viscosity sodium alginate. According to the invention, two kinds of low-viscosity sodium alginate and common sodium alginate are compounded as a seaweed-based capsule material for dripping enteric soft capsules. The enteric soft capsule can be used for wrapping various contents, the soft capsule material has enteric solubility and low temperature in the whole dripping process, so that the soft capsule is particularly suitable for preparing probiotic soft capsules, and the method has the advantages ...

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18-04-2023 дата публикации

Preparation and structural characterization method of DMSHB under mild condition

Номер: CN115974742A
Принадлежит:

The invention relates to a preparation and structural characterization method of DMSHB under mild conditions, and belongs to the technical field of organic synthesis.The target compound DMSHB is finally prepared by analyzing the structural characteristics of DMSHB, taking 4-methylthio-2-hydroxybutyric acid (MTHB) as a lead compound and adopting a nucleophilic addition method to conduct structural modification and chemical modification on MTHB. The invention also discloses a method for realizing the DMSHB structure characterization. Compared with other preparation methods, the synthesis method adopted by the invention is effective, the preparation process is simple, and the structure identification method is accurate and feasible.

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23-06-2023 дата публикации

DMSHB synthetase derived from antarctic ice algae phaeodactylum tricornutum ICE-H and application of DMSHB synthetase

Номер: CN116286706A
Принадлежит:

The invention relates to DMSHB synthetase derived from antarctic ice algae phaeodactylum tricornutum ICE-H and application of the DMSHB synthetase, and belongs to the technical field of biology, the gene sequence of the synthetase is shown as SEQ ID NO.1, and the amino acid sequence of the synthetase is shown as SEQ ID NO.2. The invention also provides a preparation method and application of the DMSHB synthetase, the DMSHB synthetase is utilized, MTHB is taken as a substrate, and DMSP is generated through oxidative decarboxylation. The large-scale preparation of the natural aquatic product phagostimulant DMSP is facilitated, and the method has a wide application prospect.

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09-06-2023 дата публикации

Application of natural oyster zinc peptide product in preparation of medicine or health care product for preventing and treating enteritis

Номер: CN116236558A
Принадлежит:

The invention discloses application of a natural oyster zinc peptide product in preparation of a medicine or a health-care product for preventing and treating enteritis. Animal experiments verify the function of the natural oyster zinc peptide product in the aspect of preventing and treating enteritis, and the natural oyster zinc peptide product improves the apparent symptoms of mouse ulcerative colitis caused by DSS by adjusting oxidative stress level, relieving inflammatory response, maintaining intestinal barrier and reducing cell apoptosis. In addition, intestinal flora and metabolites of the mice with enteritis can be regulated, so that intestinal inflammation is relieved. The natural oyster zinc peptide product used in the invention is good in safety, and compared with common anti-inflammatory and immunity-enhancing drugs, the cost is lower, side effects are avoided, and meanwhile, the effect of relieving enteritis is remarkable. Therefore, the natural oyster zinc peptide product ...

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23-06-2023 дата публикации

Application of indole-3-lactic acid in preparation of medicine and/or health food for preventing and treating bacterial infection

Номер: CN116270619A
Принадлежит:

The invention discloses application of indole-3-lactic acid in preparation of drugs and/or health food for preventing and treating bacterial infection. According to the present invention, the indole-3-lactic acid is purified and prepared from the fermentation supernatant of Lactobacillus paracasei M501 with the preservation number of CGMCC No.24861, and the indole-3-lactic acid has good in vitro helicobacter pylori resistance activity, and can achieve the effect of inhibition of colonization and growth of helicobacter pylori in the stomach by inhibiting the activity of helicobacter pylori urease; the method has a good application prospect in the aspects of developing pharmaceutical preparations and health foods with the helicobacter pylori eradication effect and the like.

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