Table 1.

Boolean logic search on PubMed

Search	Query	Results
#1	“propionate” [All Fields] OR “propionic acid”[All Fields] OR “short chain fatty acid propionate” [All Fields]	26,854
#2	“propionate” [Title] OR “propionic acid” [Title] OR “short chain fatty acid propionate” [Title]	5,570
#3	“antimicrobial” [All Fields] OR “antibiotic” [All Fields] OR “pathogen reduction” [All Fields]	373,639
#4	“propionate” [Title] OR “propionic acid” [Title] OR “short chain fatty acid propionate” [Title] AND “antimicrobial” [All Fields] OR “antibiotic” [All Fields] OR “pathogen reduction” [All Fields]	67
#5	“propionate” [Title] OR “propionic acid” [Title] OR “short chain fatty acid propionate” [Title] AND “antimicrobial” [All Fields] OR “antibiotic” [All Fields] OR “pathogen reduction” [All Fields] Filters: published in the last 10 years	34