whole part and mother tincture of Ammi majus were chemically analyzed for setting the standards in Homoeopathic system of medicine. Extractive value, Ash value, TLC UV study and the absorbance spectra in the range of 200-500 nm can be taken as parameters to fix standards.

THE work described in this paper is a continuation of that commenced by H. I. Price and Lewis [1929] and extended by Jones and Lewis [1932]. The former measured, by means of a dynamic method, the surface tension of aqueous dispersions of pure lecithin as a function of PH. It was found that a maximum value of the surface tension occurred at PH 2-6 (approx.) in close agreement with the value of t...

iii ACKNOWLEDGEMENTS iv TABLE OF CONTENTS vi LIST OF TABLES xii LIST OF FIGURES xiv CHAPTER

Sugars and other sweeteners are often the main components of a confection. Besides making them sweet, they also provide bulk to the candy. However, the physico-chemical properties of the sweeteners do more than just provide bulk. The physical characteristics of a candy, which include consistency, chewy or stretchy characteristics, melt-in-the-mouth behavior, flavor release, and many other prope...

Although the mechanism of the enzymatic reaction catalyzed by lactic dehydrogenase has been investigated by several workers, little work has been reported on the physical chemistry of this protein. In particular, a precise value for the molecular weight has not been reported. Meister (1) has estimated the molecular weight to be of the order of 100,000 to 150,000. Neilands (2) has reported a val...

Sugars and other sweeteners are often the main components of a confection. Besides making them sweet, they also provide bulk to the candy. However, the physico-chemical properties of the sweeteners do more than just provide bulk. The physical characteristics of a candy, which include consistency, chewy or stretchy characteristics, melt-in-the-mouth behavior, flavor release, and many other prope...

From a molecule to the brain perception, olfaction is a complex phenomenon that remains to be fully understood in neuroscience. Latest studies reveal that the physico-chemical properties of volatile molecules can partly explain the odor perception. Neuroscientists are then looking for new hypotheses to guide their research: physico-chemical descriptors distinguishing a subset of perceived odors...

The physico-chemical and microbiological properties of wheat flour samples (type 650) obtained from 7 different locations in the Thrace region (Turkey) were assessed. Totally 142 wheat flour samples were analysed physicochemically in terms of ash, moisture, fat acidity, and protein amounts, and microbiologically in terms of total mesophilic aerobic bacteria (TMAB), Escherichia coli, Bacillus ce...