منابع مشابه
Decomposition and Analysis of Carthamin in Safflower - Dyed Textiles
Carthamin from safflower petals has been used for centuries in Asia as a red colorant for dyes and cosmetics. Carthamin is unstable, however, both in hot, aqueous solutions, which causes difficulties in its analysis in textiles, and to light, which results in fading of dyed textiles. We have found, using HPLC and mass spectrometric analysis, that carthamin undergoes a reverse aldol condensation...
متن کاملThe Tinctorial Stability of Carthamin on Polysaccharides and Related Substances
Various saccharides and related substances were mixed with carthamin in aqueous solutions and their effects on red colour stability compared. At a low temperature range (5 °C), monoand disaccharides contributed to preservation of the carthamin red colouration. No monoand disaccharides could relieve carthamin from being bleached at a high temperature (30 °C). Among poly saccharides and their de...
متن کاملEffects of Condition Enzymatic Hydrolysis on Degrees of Hydrolysis and Antioxidant Activity of Head Protein of Bighead (Aristichthys nobilis)
Background and Objectives: Enzymatic hydrolysis is an effective practical technology that recovers valuable proteins from far-less farmed fish without losing their nutritional characteristics. Enzymatic hydrolysis of protein sources such as aquatic animals is a type of protein recycling. In the present study, effects of temperature, time and concentration of papain enzyme on hydrolysis degree a...
متن کاملAdsorption of 1,1-Dimethylhydrazine by Hydrolysis Lignin
Many modern launch vehicles use unsymmetrical dimethylhydrazine (UDMH) as liquid fuel in the space program. UDMH is highly toxic and poses a serious threat to the environment and to humans. One of the most effective methods of UDMH neutralization in case of fuel spills is adsorption. This paper is the first to suggest using hydrolysis lignin as rocket fuel adsorbent. The research was based ...
متن کاملFundamentals of Hydrolysis: Kinetics of Carbaryl Hydrolysis
Introduction: During 2000, 293 billion pounds of about 8000 different organic compounds were manufactured in the United States (1). Many millions of pounds of synthetic organic compounds are deliberately introduced into the environment for weed and pest control, and many millions of pounds of other chemicals are introduced into the environment through their proper uses. However, an increase in ...
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ژورنال
عنوان ژورنال: Chemistry Letters
سال: 1979
ISSN: 0366-7022,1348-0715
DOI: 10.1246/cl.1979.1327