Table 1. Functional properties of various kefir yeasts

Previous studies	Type of study	Type of sources	Species of strains	Functional activity
			Yeast
Goktas et al. [37]	In vitro	Kefir milk	Williopsis californica KY-14	Anti-microbial
Goktas et al. [37]	In vitro	Kefir milk	Pichia pseudocactophila KY-1	Anti-microbial
Goktas et al. [37]	In vitro	Kefir milk	Saccharomyces cerevisiae KY-3, KY-4, KY-7, KY-8, KY-9, KY-12, and KY-13	Anti-microbial
Goktas et al. [37]	In vitro	Kefir milk	Kluyveromyces marxianus KY-6	Anti-microbial
Cho et al. [52]	In vitro	Kefir milk	K. marxianusKU140723-02	Anti-oxidant, Intestinal cell adhesion
Hurtado-Romero et al. [7]	In vitro	Kefir grain	Kluyveromyces lactis BIOTEC009 and BIOTEC010	Anti-microbial
Romanin et al. [15,51]	In vitro	Kefir grain	K. marxianus CIDCA 8154	Anti-inflammatory
	In vivo			Anti-oxidative