4065
alpha ( S1 ) - , alpha ( S2 ) - , beta gamma - , and kappa - casein were 32 . 2 % , 15 . 8 % , 36 . 5 % , and 15 . 5 % , respectively , of total casein content , whereas content of beta - Lactoglobulin was approximately 1 . 3 times as high as that of alpha - Lactalbumin .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None