CONTENTS. 



PREFACE 



PAGE 



ix 



CHAPTER I. 

 HISTORICAL REVIEW - - *- 



CHAPTER II. 



OCCURRENCE OF PROTEINS IN THE DIFFERENT PARTS OF PLANTS, AND 

 THEIR GENERAL CHARACTERISTICS 



CHAPTER III. 



ISOLATION AND PREPARATION OF SEED PROTEINS 



(a) Extraction with Water - 



(b) Extraction with Solutions of Neutral Salts 



(c) Extraction with Alkaline Solutions - 

 d Extraction with Alcohol- ; - v 



13 



!3 



16 

 18 

 20 



CHAPTER IV. 



BASIC AND ACID PROPERTIES OF PROTEINS 



(a) Basic Properties 



(b) Acid Properties .-, - ?? . . 



22 



22 



27 



CHAPTER V. 



SOLUBILITY OF VEGETABLE PROTEINS 



(a) Solubility in Water 



(b) Solubility in Saline Solutions - 



(c) Solubility in Acids and Alkalies 

 (ct) Solubility in Alcohol - 



xi 



30 

 30 

 3i 

 33 

 33 



