Publications by authors named "Yun-qing Dai"
Cimicifugae Rhizoma, a well-known botanical dietary supplement, has been the subject of intense interest due to its potential application for alleviating menopausal symptom. Although there are clinic data that the Cimicifuga extract should have hepatotoxicity, no evidence on the main chemical components has been reported. Cimicidol-3-O-β -d-xyloside (CX) is one of the main triterpenoids of the rhizome.
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- Plantaricin L-1, an anti-Listeria bacteriocin produced by Lactobacillus plantarum, was purified using SP-Sepharose FF cation exchange chromatography.
- When applied to Listeria monocytogenes, plantaricin L-1 caused significant leakage of essential cellular components such as K+ ions and ATP, indicating damage to the bacterial cell membrane.
- The bacteriocin works by forming nonselective pores in the cytoplasmic membrane, leading to cell death by disrupting membrane potential and transport functions, effectively killing the target bacteria.