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Table 2 Effects of media with various YNB formulations on cell density (OD600) and enzyme activity of X33-YH cultured for 124 h

From: Efficient heterologous expression of an alkaline lipase and its application in hydrolytic production of free astaxanthin

YNB type

Components of YNB

BMMY medium

OD600 (124 h)

Enzyme activity (124 h) (U/mL)

a1-YNB

Nitrogen source, vitamins, trace elements, macronutrients

a1-BMMY

63.34 ± 2.16

623.3 ± 10.8

a2-YNB

Nitrogen source, trace elements, macronutrients

a2-BMMY

63.55 ± 1.94

600.2 ± 15.2

a3-YNB

Macronutrients

a3-BMMY

63.48 ± 1.29

615.6 ± 12.7

c-YNB

With commercial YNB

c-BMMY

64.24 ± 3.15

584.8 ± 21.7

n-YNB

Without YNB

n-BMMY

13.41 ± 1.22

10.8 ± 1.8