The Experts below are selected from a list of 675 Experts worldwide ranked by ideXlab platform

Fatih Karabey - One of the best experts on this subject based on the ideXlab platform.

  • identification of benzoin obtained from calli of styrax officinalis by hplc
    Turkish Journal of Botany, 2013
    Co-Authors: Hatice Demiray, Aylin Eşiz Dereboylu, Zekiye Isin Yazici, Fatih Karabey
    Abstract:

    The stem tissue of Styrax officinalis L. distributed in West Anatolia was induced with agents such as boric acid and Cocarboxylase (thiamine diphosphate), extensive stimulators of resin channels, in order to increase the amount of benzoin volatile oil. While the benzoin content was 120% in the induction medium to which excess boron and niacin were added, it increased to 231% when Cocarboxylase (thiamine diphosphate) was added to the medium. Benzoin content of Styrax from petiole calli was 166%. HPLC-DAD results revealed that benzoin resin was present in 90% of the stems of Styrax officinalis distributed in West Anatolia. The major components of excess boron- and niacin-induced stem calli were hexane (58.33%), 3-methyl 2-pentene (16.10%), and cyclohexane (8.88%). Hexane (62%), methyl cyclopentane (19.09%), cyclohexane (12.04%), 2-hexanone (0.04%), ethylbenzene (0.03%), and benzene and 1-chloro-2-methylpropyl benzene (propene) were identified by the Cocarboxylase application and GC-MS method. With enzyme application, while the percentages of decane and benzyl alcohol decreased, the cyclohexane ratio increased to 12.04%. Acetone (0.03%), ethyl acetate (4.10%), and dichloro methane (0.17%) contents were high as well.

J. E. Vincent - One of the best experts on this subject based on the ideXlab platform.

Hatice Demiray - One of the best experts on this subject based on the ideXlab platform.

  • identification of benzoin obtained from calli of styrax officinalis by hplc
    Turkish Journal of Botany, 2013
    Co-Authors: Hatice Demiray, Aylin Eşiz Dereboylu, Zekiye Isin Yazici, Fatih Karabey
    Abstract:

    The stem tissue of Styrax officinalis L. distributed in West Anatolia was induced with agents such as boric acid and Cocarboxylase (thiamine diphosphate), extensive stimulators of resin channels, in order to increase the amount of benzoin volatile oil. While the benzoin content was 120% in the induction medium to which excess boron and niacin were added, it increased to 231% when Cocarboxylase (thiamine diphosphate) was added to the medium. Benzoin content of Styrax from petiole calli was 166%. HPLC-DAD results revealed that benzoin resin was present in 90% of the stems of Styrax officinalis distributed in West Anatolia. The major components of excess boron- and niacin-induced stem calli were hexane (58.33%), 3-methyl 2-pentene (16.10%), and cyclohexane (8.88%). Hexane (62%), methyl cyclopentane (19.09%), cyclohexane (12.04%), 2-hexanone (0.04%), ethylbenzene (0.03%), and benzene and 1-chloro-2-methylpropyl benzene (propene) were identified by the Cocarboxylase application and GC-MS method. With enzyme application, while the percentages of decane and benzyl alcohol decreased, the cyclohexane ratio increased to 12.04%. Acetone (0.03%), ethyl acetate (4.10%), and dichloro methane (0.17%) contents were high as well.

Michael Gelinsky - One of the best experts on this subject based on the ideXlab platform.

  • Modifications of a calcium phosphate cement with biomolecules--influence on nanostructure, material, and biological properties.
    Journal of biomedical materials research. Part A, 2010
    Co-Authors: Corina Vater, Anja Lode, Anne Bernhardt, Antje Reinstorf, Berthold Nies, Michael Gelinsky
    Abstract:

    Calcium phosphate cements (CPC), forming hydroxyapatite during the setting reaction, are characterized by good biocompatibility and osteoconductivity, however, their remodeling into native bone tissue is slow. One strategy to improve remodeling and bone regeneration is the directed modification of their nanostructure. In this study, a CPC was set in the presence of Cocarboxylase, glucuronic acid, tartaric acid, α-glucose-1-phosphate, L-arginine, L-aspartic acid, and L-lysine, respectively, with the aim to influence formation and growth of hydroxyapatite crystals through the functional groups of these biomolecules. Except for glucuronic acid, all these modifications resulted in the formation of smaller and more agglomerated hydroxyapatite particles which had a positive impact on the biological performance indicated by first experiments with the human osteoblast cell line hFOB 1.19. Moreover, adhesion, proliferation, and osteogenic differentiation of human bone marrow-derived mesenchymal stem cells (hBMSC) as well as binding of the growth factors BMP-2 and VEGF was investigated on CPC modified with Cocarboxylase, arginine, and aspartic acid. Initial adhesion of hBMSC was improved on these three modifications and proliferation was enhanced on CPC modified with Cocarboxylase and arginine whereas osteogenic differentiation remained unaffected. Modification of the CPC with arginine and aspartic acid, but not with Cocarboxylase, led to a higher BMP-2 binding.

Alexander Yu. Voloshko - One of the best experts on this subject based on the ideXlab platform.

  • Influence of microwave technology on Cocarboxylase hydrochloride particle diversity and drying efficiency
    Powder Technology, 2010
    Co-Authors: Natalia A. Pinchukova, Valentin A. Chebanov, Viktoria V. Danilina, Sergey M. Desenko, Volodymyr P. Seminozhenko, Oleg V. Shishkin, Alexander Yu. Voloshko
    Abstract:

    Abstract Two possible ways of crystallite downsizing of Cocarboxylase hydrochloride namely mechanical milling and precipitation under high supersaturation conditions were studied as well as their influence on the drying parameters of the produced powders. It was found that both methods allowed shortening drying times of powders. However, precipitation from highly supersaturated solutions was found to have a more significant effect on Cocarboxylase hydrochloride drying in comparison with the milling as the crystallites produced by the former method have smaller sizes (