4378
Extraction yield , galacturonic acid ( GalA ) content , average molecular weight ( M ( w , ave ) ) , intrinsic viscosity [ eta ] ( w ) , and degree of esterification ( DE ) were compared to those parameters obtained for pectins extracted using acid and aqueous processes .
 galacturonic acid, GalA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 galacturonic acid, GalA