Joseph Hall Bodine
نویسندگان
چکیده
منابع مشابه
Enzymes in Ontogenesis (orthoptera) Xiii . Activation of Protyrosinase and the Oxidation of Ascorbic Acid* by Thomas Hunter Allen" and Joseph Hall Bodine
A number of reports showing that quinonoid compounds can act as carriers in the oxidation of ascorbic acid by oxygen have been reviewed by King (1, 2). Since phenol oxidases bring about the production of quinones, the association of ascorbic acid oxidation with these oxidases seems well established. A study of such an oxidation in conjunction with the tyramlne-tyrosinase and tyrosine-tyrosinase...
متن کاملEnzymes in Ontogenesis (orthoptera)
1. Proteins, when added to activators (sodium oleate. Aerosol) of protyrosinase, greatly decrease the degree of activation. 2. Certain proteins adsorbed on activator micelles are markedly affected by temperature and are rendered more sensitive by ultraviolet light. 3. Ideas are expressed as to the possible nature of activating and inhibiting phenomena especially as they relate to the enzyme tyr...
متن کاملA Simple Micro Vessel with Electrode for Determining the Hydrogen Ion Concentration of Small Amounts of Fluid
A convenient and accurate method is described for the electrometric determination of the hydrogen ion concentration of small amounts of fluid (0.015 to 0.020 cc.). The suitability of such a method for work on insect blood and body fluids is particularly pointed out.
متن کاملTHE pH STABILITY OF PROTYROSINASE AND TYROSINASE
1. pH stability diagrams for protyrosinase and for tyrosinase were constructed. 2. Above pH 7.30 protyrosinase is unstable. Between pH 7.30 and pH 9.30 there is a partial destruction. Beyond pH 9.30 it changes irreversibly into tyrosinase which in turn is destroyed beyond pH 10.12. 3. Through the lower ranges of pH protyrosinase is less stable than tyrosinase The former is destroyed below pH 4....
متن کاملSome Physiological Actions of Cyanides
1. The physiological actions of HCN and its salts appear to be due (a) to the ease with which HCN molecules penetrate living cells and then ionizing, exert their influence by means of H ions and CN ions; (b) to the weakness of HCN as an acid, which permits at neutrality or at even slight alkalinity the presence of a considerable amount of free HCN molecules in the presence of their salts; (c) t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007