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Plant-based natural saponins for Escherichia coli surface hygiene management
LWT - Food Science and Technology ( IF 6 ) Pub Date : 2020-01-06 , DOI: 10.1016/j.lwt.2020.109018
Rok Fink , Anja Potočnik , Martina Oder

Cleaning the surfaces enables reducing microbial populations and consequently the risk of food contamination. The aim of this research was to study the potential of natural extracts from soap nuts, quillaja bark, and horse chestnuts for the reduction of Escherichia coli on glass surfaces. Analogous to that, we tested the efficacy of standard saponins as the active components in the plants mentioned above. The results show that the numbers of bacteria cells are decreased by increasing concentrations of all cleaning product, except for quillaja standard saponin (p < 0.05). Furthermore, the findings indicate that natural plant extracts have greater efficacy than standard saponins do. In particular, quillaja bark extract shows the potential to reduce bacterial populations by up to 66%. Moreover, the research also demonstrates that natural plant extracts have excellent abilities to reduce water surface tension (22 mN/m for soap nut extract) and emulsification potential (74 for quillaja bark extract). Natural plant extracts are inexpensive, biodegradable, and residues are less toxic than conventional ones. The evidence of this study suggests that natural plant extracts are efficient against attached E. coli cells on the glass surface and are a good candidate for surface hygiene management.



中文翻译:

基于植物的天然皂苷用于大肠杆菌表面卫生管理

清洁表面可以减少微生物的繁殖,从而减少食物污染的风险。这项研究的目的是研究天然肥皂提取物,鹅掌树皮和七叶树提取物对减少玻璃表面大肠杆菌的潜力。与此类似,我们测试了标准皂苷作为上述植物中活性成分的功效。结果表明,除Quillaja标准皂苷(p <0.05)。此外,研究结果表明,天然植物提取物比标准皂苷具有更高的功效。尤其是,quillaja树皮提取物显示出最多可减少66%的细菌种群的潜力。此外,研究还表明,天然植物提取物具有出色的降低水表面张力(皂坚果提取物为22 mN / m)和乳化潜力(quillaja树皮提取物为74)的出色能力。天然植物提取物价格便宜,可生物降解,且残留物的毒性低于常规提取物。这项研究的证据表明,天然植物提取物能有效抵抗玻璃表面附着的大肠杆菌细胞,并且是进行表面卫生管理的良好选择。

更新日期:2020-01-06
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