منابع مشابه
Mother's milk and hydrogen peroxide.
H(2)O(2) levels in mother's milk were measured at different times of postpartum periods after birth as well as after different times of storage at freezing temperature. The luminol H(2)O(2) dependent chemiluminescence at pH= 9.8 technique was used. Maximum levels of H(2)O(2) were found in the first week of the postpartum period (24.992 +/- 0.168 microM). The levels of H(2)O(2) decreased signifi...
متن کاملHydrogen peroxide and chemical instability
Introduction Conclusions References Tables Figures Back Close Abstract Introduction Conclusions References Tables Figures Back Close Abstract A box model has been used to study the annual cycle in hydrogen peroxide concentrations with the objective of determining whether the observed difference in summer and winter values reflects instability in the underlying photochemistry. The model is run i...
متن کاملHydrogen peroxide sensing and signaling.
It is well established that oxidative stress is an important cause of cell damage associated with the initiation and progression of many diseases. Consequently, all air-living organisms contain antioxidant enzymes that limit oxidative stress by detoxifying reactive oxygen species, including hydrogen peroxide. However, in eukaryotes, hydrogen peroxide also has important roles as a signaling mole...
متن کاملHydrogen peroxide and platelet function.
Hydrogen peroxide, at concentrations in the micromolar range, can influence platelet function. Although H202 causes no detectable platelet aggregation at these concentrations, it can aggregate platelets which have been previously exposed to any of several aggregating agents. H202 can enhance bath aggregation and the subsequent disaggregation of platelets, as initiated by ADP. Preexposure of pla...
متن کاملBiobleaching of Bagasse Pulp with Xylanase Enzymes and Hydrogen Peroxide
The effect of the operating conditions (temperature, time, pH, enzyme level and pulp consistency) used in the enzymatic step of a XP (Cartazyme-hydrogen peroxide) sequence for bleaching Kraft pulp from bagasse on various properties of the resulting pulp and paper sheet products was studied. The quality of bagasse used, was examined by its yield, brightness,viscosity and the Kappa number. Finall...
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ژورنال
عنوان ژورنال: The Plant Journal
سال: 1993
ISSN: 0960-7412,1365-313X
DOI: 10.1046/j.1365-313x.1993.04050887.x