Item Refractive Index
Water 1.3288
Fermentation Broth Before Filtration (1) 1.3866
Fermentation Broth After Filtration (1) 1.3861
Fermentation Broth Before Filtration (2) 1.39
Fermentation Broth After Filtration (2) 1.3889
Table 4: Refractive indices of fermentation broth before and after filtration.