Enzymatic methods hydrolysis and

Shimada, Y., Maruyama, K., Sugihara, A., Moriyama, S., and Tominaga, Y. 1997a. Purification of docosahexaenoic acid from tuna oil by a two-step enzymatic method hydrolysis and selective esterification. J. Am. Oil Chem. Soc., 74,1441-1446. 

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