| Word | Reading | Meaning | Level |
| 麹菌 | こうじきん | Aspergillus oryzae, koji mold | N1 |
| 蔵付き菌 | くらつききん | indigenous micro-flora of the storehouse | N1 |
| 殺菌 | さっきん | natural sterilization, antimicrobial quality | N1 |
| 菌糸 | きんし | underground fungal mycelium threads | N1 |
| 殺菌海水 | さっきんかいすい | purified ultraviolet sterilized seawater | N1 |
| 雑菌混入 | ざっきんこんにゅう | contamination by airborne wild contaminants | N1 |
| 殺菌洗浄 | さっきんせんじょう | scrubbing with boiling water | N1 |
| 乳酸菌 | にゅうさんきん | lactic acid bacteria | N1 |
| 菌交代 | きんこうたい | microbial ecological succession | N1 |
| 酵母菌 | こうぼきん | Zygosaccharomyces yeast cultures | N1 |
| 雑菌淘汰 | ざっきんとうた | acidic purging of unwanted bacteria | N1 |
| 菌叢 | きんそう | complex micro-flora ecosystem, microbiome | N1 |
| 酢酸菌 | さくさんきん | Acetobacter, acetic acid bacteria | N1 |
| 菌膜 | きんまく | gelatinous mother-of-vinegar cellulose mat | N1 |
| 固有菌株 | こゆうきんしゅ | unique endemic microbial strain | N1 |
| 酢酸菌膜 | さくさんきんまく | pellicle cellulose mat of acetic acid bacteria | N1 |
| 嫌気性菌 | けんきせいきん | anaerobic microorganisms | N1 |
| 好気性菌 | こうきせいきん | aerobic microorganisms | N1 |
| 菌系譜 | きんけいふ | genealogical lineage of cellar yeast strains | N1 |
| 菌株保存 | きんしゅほぞん | microbiological strain preservation | N1 |
| 菌相維持 | きんそういじ | keeping the resident micro-flora alive on staves | N1 |