98859
By preparative SDS polyacrylamide gel electrophoresis standard proteins ( cytochrome c , aldolase , ovalbumin and bovine serum albumin ) with molecular masses of 14 - 66 ku can be recovered with an average yield of about 73,6 % .
 ovalbumin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 ovalbumin