Ac	acetic acid
ATCC	American Type Culture Collection
BA	butyric acid
CFU	colony-forming unit
BSL-2	biosafety level 2
1-D	one-dimensional
2-D	two-dimensional
D2O	deuterium oxide
ELISA	enzyme-linked immunosorbent assay
FDA	Food and Drug Administration
Ffar1	free fatty acid receptor 1
Ffar2	free fatty acid receptor 2
GPR41	G-protein coupled receptor 41
GRAS	Generally Recognized As Safe
HDAC	histone deacetylase
HSQC	heteronuclear single quantum coherence
IACUC	Institutional Animal Care and Use Committee
IL	interleukin
MIP-2	macrophage-inflammatory protein-2
NCU	National Central University
NIH	National Institutes of Health
NF-S. epidermidis	non-fermentation S. epidermidis
NMR	nuclear magnetic resonance
NS	non-significant
P. acnes	Propionibacterium acnes
PBS	phosphate buffered saline
SCFA	short-chain fatty acids
SD	standard deviation
S. epidermidis	Staphylococcus epidermidis
SFI	selective fermentation initiator
16S rRNA	16S ribosomal RNA
TLR-2	toll-like receptor 2
TNFα	tumor necrosis factor α