Studies on an Antitumor Polysaccharide RBS Derived from Rice Bran. I. Preparation, Physico-chemical Properties, and Biological Activities of RBS
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چکیده
منابع مشابه
extraction and acetylation of purified trypsin from bovin pancreas and study of some its physico-chemical properties
آنزیم تریپسین در شرایط قلیایی ناپایدار می باشد .و فعالیت پروتئولیتیکی تریپسین منجربه خود هضمی آن در جایگاههای خاصی می گردد. بنابر این آنزیمی با ناپایداری بالا محسوب میگردد. در سالهای اخیر موفق شدند که با ایجاد تغیرات شیمیایی با اضافه کردن فلزات خاص ، کلسیم و یا عمل استیلاسیون منجر به افزایش پایداری آنزیم تریپسین گردند. مطالعات در حال حاضر نشان می دهد که تریپسین استیله شده فعالیت آنزیمی خود را ...
15 صفحه اولStudies on new antibiotics SF2415. I. Taxonomy, fermentation, isolation, physico-chemical properties and biological activities.
A new species of Streptomyces is described for which the name Streptomyces aculeolatus is proposed. The organism produces new antibiotics SF2415A1, A2, A3, B1, B2 and B3 active against Gram-positive bacteria. Empirical molecular formulae of the antibiotics SF2415A1, A2, A3, B1, B2 and B3 were determined to be C26H31N2O5Cl, C26H30N2O5, C26H30N2O5Cl2, C26H33O5Cl, C26H32O5 and C26H32O5Cl2, respect...
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Leucinostatin, a peptide antibiotic, was separated by silica gel and alumina column chromatography into two related components designated as leucinostatin A hydrochloride (C61H111-N11O13.HCl) and leucinostatin B hydrochloride (C61H109N11O13.HCl). Physico-chemical as well as biological properties of the two separated components were analyzed. These properties pointed to closely resembling chemic...
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In the paper we present the short description of physical phenomena related to the motion of ion inside the crystal. The form of this description makes it possible and easy to construct the calculation procedures. The final results are the simulation and experimental data for the Si(001)SiO2-Si(001 (SIMOX) structure. The comparison of the results obtained shows that the problem of energy losses...
متن کاملRutherford Backscattering Spectrometry (RBS)
Rutherford Backscattering Spectrometry (RBS) is a widely used method for the surface layer analysis of solids. This lecture gives a brief introduction into the method, and describes scattering kinematics, scattering cross-section data, stopping power data, detector resolution issues, and electronic energy loss straggling in some detail. Computer codes for the simulation of RBS spectra and RBS d...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1985
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.105.2_188