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Farha Arakkaveettil Kabeer, Yang Qiong-Qiong, Kim Gowoon, Zhang Dan, Mavumengwan

来源:FOOD CONTROL 发布时间:2020-05-05 21:04:13 浏览次数:100次

标题: Inhibition of multidrug-resistant foodborne Staphylococcus aureus biofilms by a natural terpenoid (+)-nootkatone and related molecular mechanism
作者: Farha, AK (Farha, Arakkaveettil Kabeer); Yang, QQ (Yang, Qiong-Qiong); Kim, G (Kim, Gowoon); Zhang, D (Zhang, Dan); Mavumengwana, V (Mavumengwana, Vuyo); Habimana, O (Habimana, Olivier); Li, HB (Li, Hua-Bin); Corke, H (Corke, Harold); Gan, RY (Gan, Ren-You)
来源出版物: FOOD CONTROL  卷: 112  文献号: 107154  DOI: 10.1016/j.foodcont.2020.107154  出版年: JUN 2020  
影响因子 (2018 年): 4.248
引用的参考文献数: 42
摘要: Staphylococcus aureus, a foodbome pathogen, poses serious problems to the food industries owing to biofilm formation, and over 25% of the foodbome illnesses in China have been attributed to S. aureus only. Phytochemicals are widely used as anti-biofilm agents with promising efficacy, and most of them are widely available and safe. This study reported the anti-biofilm efficacy of (+)-nootkatone, a sesquiterpene ketone found in a common fruit grapefruit, against multidrug-resistant S. aureus and its potential molecular mechanism. (+)-Nootkatone exhibited bacteriostatic and bactericidal effects at 200 and 400 mu g/mL, respectively, against S. aureus SJTUF 20758 and S. aureus ATCC 25923. Crystal violet staining indicated that (+)-nootkatone inhibited S. aureus biofilm formation (p < 0.05) at a sub-MIC of 50 mu g/mL and reduced exopolysaccharide production. The thickness of biofilms was significantly reduced by (+)-nootkatone, which was supported by the light microscopy and confocal laser scanning microscopy. Growth curve of bacteria showed that the antibacerial activity of (+)-nootkatone was dose-dependent, and the sub-MIC concentrations did not affect the bacterial growth of planktonic cells. Besides, (+)-nootkatone affected the sliding motility of S. aureus. At 200 mu g/mL, (+)-nootkatone led to the reduction of preformed biofilm mass by 50% and bacterial cell death of 79%, accompanied with a reduction of exopolysaccharide. The expression of biofilm-related genes, including sarA, icaA, agrA, RNAIII, and spa, was suppressed by (+)-nootkatone, as revealed by the transcriptional analysis. Additionally, MTT assay revealed that there was no toxicity of (+)-nootkatone to the human foreskin fibroblasts (HFF) cells. Therefore, (+)-nootkatone is a promising phytochemical against S. aureus biofilms, and has the potential to be used in food industry to fight against S. aureus-induced safety issues.
入藏号: WOS:000519652600042
语言: English
文献类型: Article
作者关键词: (+)-Nootkatone; Phytochemical; Multidrug resistance; Staphylococcus aureus; Biofilm; Mechanisms
KeyWords Plus: ANTIBIOFILM ACTIVITY; GALLIC ACID; EPIDERMIDIS; PREVALENCE; EXPRESSION; NOOTKATONE; ASSAYS; SARA; ICA
地址: [Farha, Arakkaveettil Kabeer; Yang, Qiong-Qiong; Kim, Gowoon; Zhang, Dan; Corke, Harold; Gan, Ren-You] Shanghai Jiao Tong Univ, Sch Agr & Biol, Dept Food Sci & Technol, Shanghai 200240, Peoples R China.
[Mavumengwana, Vuyo] Stellenbosch Univ, Fac Med & Hlth Sci, Div Mol Biol & Human Genet,US SAMRC Ctr TB Res, Dept Biomed Sci,DST NRF Ctr Excellence Biomed TB, ZA-8000 Cape Town, South Africa.
[Habimana, Olivier] Univ Hong Kong, Sch Biol Sci, Pokfulam Rd, Hong Kong, Peoples R China.
[Li, Hua-Bin] Sun Yat Sen Univ, Sch Publ Hlth, Dept Nutr, Guangdong Prov Key Lab Food Nutr & Hlth, Guangzhou 510080, Peoples R China.
[Gan, Ren-You] Chinese Acad Agr Sci, Inst Urban Agr, Res Ctr Plants & Human Hlth, Chengdu 610213, Peoples R China.
通讯作者地址: Corke, H; Gan, RY (通讯作者),Shanghai Jiao Tong Univ, Sch Agr & Biol, Dept Food Sci & Technol, Shanghai 200240, Peoples R China.
Gan, RY (通讯作者),Chinese Acad Agr Sci, Inst Urban Agr, Res Ctr Plants & Human Hlth, Chengdu 610213, Peoples R China.
电子邮件地址: hcorke@sjtu.edu.cn; ganrenyou@caas.cn
作者识别号:
作者Web of Science ResearcherIDORCID 号Habimana, Olivier  0000-0002-6357-4285 Mavumengwana, Vuyo  0000-0003-4672-6176 Gan, Ren-You  0000-0002-4162-1511 
出版商: ELSEVIER SCI LTD
出版商地址: THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Web of Science 类别: Food Science & Technology
研究方向: Food Science & Technology
IDS 号: KU4AP
ISSN: 0956-7135
eISSN: 1873-7129
29 字符的来源出版物名称缩写: FOOD CONTROL
ISO 来源出版物缩写: Food Control
来源出版物页码计数: 8
基金资助致谢:
基金资助机构授权号National Key R&D Program of China 2017YFC1600100 China Central Public-interest Scientific Institution Basal Research Fund Y2020XK05 Shanghai Basic and Key Program 18JC1410800 Shanghai Pujiang Talent Plan 18PJ1404600 

This work was supported by the National Key R&D Program of China (Grant No. 2017YFC1600100), China Central Public-interest Scientific Institution Basal Research Fund (Grant No.Y2020XK05), the Shanghai Basic and Key Program (Grant No. 18JC1410800), and the Shanghai Pujiang Talent Plan (Grant No. 18PJ1404600).