Bakterie från kimchi binder polystyren-nanoplaster i laboratorietester och ökar utsöndringen hos möss, visar studie

18 maj 2026

Rapporterad av AI

Faktagranskad

En probiotisk bakterie isolerad från kimchi band starkt till polystyren-nanoplaster i laboratorieförsök och kopplades till högre utsöndring av nanoplaster hos groddfria möss, enligt en forskningssammanfattning publicerad av Sydkoreas nationella forskningsråd för vetenskap och teknik.

Forskare vid World Institute of Kimchi (WiKim), ett statligt finansierat forskningsinstitut under Sydkoreas ministerium för vetenskap och IKT, rapporterade resultat som tyder på att en mjölksyrabakterie från kimchi kan bidra till att minska nanoplaster i tarmen genom att binda till dem och främja deras avlägsnande via avföringen.

I laboratorieförsök undersökte teamet en stam vid namn Leuconostoc mesenteroides CBA3656 och testade hur effektivt den fäste vid polystyren-nanoplaster (PS-NPs). Under standardiserade laboratorieförhållanden uppnådde CBA3656 en adsorptionsgrad på 87 %. I experiment utformade för att efterlikna förhållanden i människans tarm bibehöll bakterien en adsorption på 57 %, medan en jämförande stam—Latilactobacillus sakei CBA3608—sjönk till 3 %.

Forskarna testade även probiotikan på groddfria möss. Han- och honmöss som fick CBA3656 hade mer än dubbelt så mycket nanoplaster i sin avföring jämfört med möss som inte fick stammen, enligt forskningssammanfattningen—resultat som teamet tolkade som bevis på att bakterien kan binda nanoplaster i tarmen och bidra till att transportera ut dem ur kroppen.

Arbetet publicerades i Bioresource Technology, enligt forskningssammanfattningen.

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