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Table 6 Characteristic of GalOS synthesis by different β-galactosidases in batch process

From: A multifunctional thermophilic glycoside hydrolase from Caldicellulosiruptor owensensis with potential applications in production of biofuels and biochemicals

Enzyme source Initial lactose concentration (g L−1) Enzyme loading (Ulactose ml−1 μg ml−1) Temperature (°C) Time for reaching maximum yield GalOS productivity (g L−1 h−1) Maximum yield of GalOS % References
Lactobacillus delbrueckii subsp. bulgaricus 205 1.5 >12.2a 50 5 h 19.8 ~50 [23]
Bifidobacterium breve 200 2.5 >25.8a 30 6 h 14.7 44 [51]
Thermotoga maritima 500 1.5 >23.6a 80 5 h 18.2 18 [39, 55]
Marine metagenomic library 360 18 267.9 40 ~10 h 20.6 57.1 [52]
Caldicellulosiruptor owensensis 500 2.5 8.9 70 50 min 265.2 44.2 This work
  1. aThe given data were calculated using the values of the V max of each enzyme as the specific activity