STUDIES ON AMYLASES. IX. FURTHER EXPERIMENTS UPON THE PURIFICATION OF MALT AMYLASE.

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Further Studies upon Anaphylaxis

the following points: A.?The incubation period of anaphylaxis, and its variations according as the injections of serum are made into the brain or otherwise, and according to the quantity of serum injected. B.?The results of treatment thermal and other of the injected serum, upon the production of supersensitiveness, and upon tlie toxicit}' of the serum. C.? The specificity of the anaphylactics....

متن کامل

Alpha-amylase inhibitor of amadumbe (Colocasia esculenta): Isolation, purification and selectivity toward - amylases from various sources

Two proteins (A-1 and B-2) with -amylase inhibitor activity were extracted and partially purified from Colocasia esculenta tubers through 80% ammonium sulphate fractionation, ion-exchange chromatography on DEAE -Sephacel and gel-chromatography on Sephadex G-100. The molecular weight of A-1 and B-2 were estimated to be about 17000 and 19000 daltons, respectively. The inhibitors inactivated -am...

متن کامل

Clxvii. Studies on Plant Amylases. I. the Effect of Starch Concentration upon the Velocity of Hydrolysis by the Amylase of Germinated Barley

IT is clear that, for the determination of enzymic reaction-velocity under readily definable conditions, the states near the initiation of the reaction are decidedly the best. Usually however this part of the progress has been left unexplored and delineation of it has been based merely upon empirical expressions of doubtful value. In the present paper data have been directly collected within a ...

متن کامل

Production and Characterization of Amylases from Zea mays Malt

In this work the α and β-amylase enzymes were obtained from maize (Zea mays) malt and were biochemistry characterized. A germination study to obtain the maize malt with good amylase activity was made. The maize seeds were germinated in laboratory and the enzymatic activity was measured daily. Activity dependence to germination time were fitted to an exponential model (A=A0e ), which showed that...

متن کامل

survey on the rule of the due & hindering relying on the sheikh ansaris ideas

قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...

15 صفحه اول

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the American Chemical Society

سال: 1915

ISSN: 0002-7863,1520-5126

DOI: 10.1021/ja02168a025