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Wang Y, Rui W, Li Y, Han Y, Zhan X, Cheng S, Song L, Yang H, Jiang T, Liu G, Shi C. Inhibition and Mechanism of Citral on Bacillus cereus Vegetative Cells, Spores, and Biofilms. Foodborne Pathog Dis 2024; 21:447-457. [PMID: 38985570 DOI: 10.1089/fpd.2023.0176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024] Open
Abstract
Bacillus cereus causes food poisoning by producing toxins that cause diarrhea and vomiting and, in severe cases, endocarditis, meningitis, and other diseases. It also tends to form biofilms and spores that lead to contamination of the food production environment. Citral is a potent natural antibacterial agent, but its antibacterial activity against B. cereus has not been extensively studied. In this study, we first determined the minimum inhibitory concentrations and minimum bactericidal concentrations, growth curves, killing effect in different media, membrane potential, intracellular adenosine triphosphate (ATP), reactive oxygen species levels, and morphology of vegetative cells, followed by germination rate, morphology, germination state of spores, and finally biofilm clearance effect. The results showed that the minimum inhibitory concentrations and minimum bactericidal concentrations of citral against bacteria ranged from 100 to 800 μg/mL. The lag phase of bacteria was effectively prolonged by citral, and the growth rate of bacteria was slowed down. Bacteria in Luria-Bertani broth were reduced to below the detection limit by citral at 800 μg/mL within 0.5 h. Bacteria in rice were reduced to 3 log CFU/g by citral at 4000 μg/mL within 0.5 h. After treatment with citral, intracellular ATP concentration was reduced, membrane potential was altered, intracellular reactive oxygen species concentration was increased, and normal cell morphology was altered. After treatment with citral at 400 μg/mL, spore germination rate was reduced to 16.71%, spore morphology was affected, and spore germination state was altered. It also had a good effect on biofilm removal. The present study showed that citral had good bacteriostatic activity against B. cereus vegetative cells and its spores and also had a good clearance effect on its biofilm. Citral has the potential to be used as a bacteriostatic substance for the control of B. cereus in food industry production.
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Affiliation(s)
- Yihong Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Wushuang Rui
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yilin Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yan Han
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiangjun Zhan
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Shuai Cheng
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Luyi Song
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Hui Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Tongyu Jiang
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Guorong Liu
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, China
| | - Chao Shi
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
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Ferah Okkay I, Okkay U, Cicek B, Karatas O, Yilmaz A, Yesilyurt F, Hacimuftuoglu A. Syringic acid guards against indomethacin-induced gastric ulcer by alleviating inflammation, oxidative stress and apoptosis. Biotech Histochem 2024; 99:147-156. [PMID: 38644776 DOI: 10.1080/10520295.2024.2344477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024] Open
Abstract
The purpose of this study was to evaluate the effects of syringic acid, an anti-oxidant, on indomethacin induced gastric ulcers in rats. Experimental groups were control, ulcer, ulcer treated with 20 mg/kg esomeprazole (a proton pump inhibitor that reduces acid secretion), and ulcer treated with 100 mg/kg syringic acid. Rats were pretreated with esomeprazole or syringic acid two weeks before ulcer induction. Our histopathological observations showed that either syringic acid or esomeprazole attenuated the severity of gastric mucosal damage. Moreover, syringic acid and esomeprazole pretreatments alleviated indomethacin-induced damage by regulating oxidative stress, inflammatory response, the level of transforming growth factor-β (TGF-β), expressions of COX and prostaglandin E2, cell proliferation, apoptosis and regulation of the NF-κB signaling pathway. We conclude that either esomeprazole or syringic acid administration protected the gastric mucosa from harmful effects of indomethacin. Syringic acid might, therefore be a potential therapeutic agent for preventing and treating indomethacin-induced gastric damage.
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Affiliation(s)
- Irmak Ferah Okkay
- Department of Pharmacology, Faculty of Pharmacy, Ataturk University, Erzurum, Turkey
| | - Ufuk Okkay
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Betul Cicek
- Department of Physiology, Faculty of Medicine, Erzincan Binali Yildirim University, Erzincan, Turkey
| | - Ozhan Karatas
- Department of Pathology, Faculty of Veterinary Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Aysegul Yilmaz
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Fatma Yesilyurt
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Ahmet Hacimuftuoglu
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
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Khataybeh B, Jaradat Z, Ababneh Q. Anti-bacterial, anti-biofilm and anti-quorum sensing activities of honey: A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116830. [PMID: 37400003 DOI: 10.1016/j.jep.2023.116830] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/31/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Man has used honey to treat diseases since ancient times, perhaps even before the history of medicine itself. Several civilizations have utilized natural honey as a functional and therapeutic food to ward off infections. Recently, researchers worldwide have been focusing on the antibacterial effects of natural honey against antibiotic-resistant bacteria. AIM OF THE STUDY This review aims to summarize research on the use of honey properties and constituents with their anti-bacterial, anti-biofilm, and anti-quorum sensing mechanisms of action. Further, honey's bacterial products, including probiotic organisms and antibacterial agents which are produced to curb the growth of other competitor microorganisms is addressed. MATERIALS AND METHODS In this review, we have provided a comprehensive overview of the antibacterial, anti-biofilm, and anti-quorum sensing activities of honey and their mechanisms of action. Furthermore, the review addressed the effects of antibacterial agents of honey from bacterial origin. Relevant information on the antibacterial activity of honey was obtained from scientific online databases such as Web of Science, Google Scholar, ScienceDirect, and PubMed. RESULTS Honey's antibacterial, anti-biofilm, and anti-quorum sensing activities are mostly attributed to four key components: hydrogen peroxide, methylglyoxal, bee defensin-1, and phenolic compounds. The performance of bacteria can be altered by honey components, which impact their cell cycle and cell morphology. To the best of our knowledge, this is the first review that specifically summarizes every phenolic compound identified in honey along with their potential antibacterial mechanisms of action. Furthermore, certain strains of beneficial lactic acid bacteria such as Bifidobacterium, Fructobacillus, and Lactobacillaceae, as well as Bacillus species can survive and even grow in honey, making it a potential delivery system for these agents. CONCLUSION Honey could be regarded as one of the best complementary and alternative medicines. The data presented in this review will enhance our knowledge of some of honey's therapeutic properties as well as its antibacterial activities.
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Affiliation(s)
- Batool Khataybeh
- Department of Nutrition and Food Technology, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Ziad Jaradat
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan.
| | - Qutaiba Ababneh
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Li M, Li J, Li J, Zhang J, Zhao Y, Li W, Zhang Y, Hu J, Xie X, Zhang D, Li H, Zhao Q, Gao H, Liang C. Design, synthesis, and evaluation of novel pleuromutilin aryl acrylate derivatives as promising broad-spectrum antibiotics especially for combatting multi-drug resistant gram-negative bacteria. Eur J Med Chem 2023; 259:115653. [PMID: 37531743 DOI: 10.1016/j.ejmech.2023.115653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/04/2023] [Accepted: 07/13/2023] [Indexed: 08/04/2023]
Abstract
The emergence of drug-resistant strains presents a grave challenge for traditional antibiotics, underscoring the exigency of exploring novel antibacterial drugs. To address this, the present study endeavors to design and synthesize a collection of pleuromutilin aromatic acrylate derivatives, guided by combination principles. The antibacterial activity and structure-activity relationship of these derivatives were evaluated, and most of the derivatives displayed moderate to excellent antibacterial activity against both Gram-positive bacteria and Gram-negative bacteria. Among these derivatives, 5g exhibited the strongest antibacterial activity, with MIC (minimum inhibitory concentration) values ranging from 1-32 μg/mL, and a MIC value against clinically isolated drug-resistant strains of 4-64 μg/mL. Additionally, 5g exhibited negligible cytotoxicity, superior anti-mycoplasma activity, and a greater propensity to perturb bacterial cell membranes. Notably, the administration of 5g resulted in an increased survival rate of MRSA (Methicillin-resistant Staphylococcus aureus)-infected mice, with an ED50 (median effective dose) value of 9.04 mg/kg. These results indicated the potential of 5g to be further developed as an antibacterial drug for the clinical treatment of drug-resistant bacterial infections.
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Affiliation(s)
- Min Li
- College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang, 830001, PR China.
| | - Jialin Li
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Jingyi Li
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Jie Zhang
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Yuqing Zhao
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Wenying Li
- College of Pharmacy, Xinjiang Medical University, No.567 Shangde North Road, Urumqi, Xinjiang, 830001, PR China
| | - Yunfei Zhang
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Jinrong Hu
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Xiaolin Xie
- Shaanxi Panlong Pharmaceutical Group Co., Ltd., Xi'an, 710025, PR China
| | - Dezhu Zhang
- Shaanxi Panlong Pharmaceutical Group Co., Ltd., Xi'an, 710025, PR China
| | - Han Li
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China
| | - Qianqian Zhao
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China.
| | - Hong Gao
- Shaanxi Pioneer Biotech Co., Ltd., Xi'an, 710021, PR China
| | - Chengyuan Liang
- School of Biological and Pharmaceutical Sciences, Shaanxi University of Science & Technology, Xi'an, 710021, PR China.
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Roney M, Issahaku AR, Huq AM, Soliman MES, Tajuddin SN, Aluwi MFFM. Exploring the potential of biologically active phenolic acids from marine natural products as anticancer agents targeting the epidermal growth factor receptor. J Biomol Struct Dyn 2023:1-24. [PMID: 37909584 DOI: 10.1080/07391102.2023.2276879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/22/2023] [Indexed: 11/03/2023]
Abstract
The epidermal growth factor receptor (EGFR) dimerizes upon ligand bindings to the extracellular domain that initiates the downstream signaling cascades and activates intracellular kinase domain. Thus, activation of autophosphorylation through kinase domain results in metastasis, cell proliferation, and angiogenesis. The main objective of this research is to discover more promising anti-cancer lead compound against EGRF from the phenolic acids of marine natural products using in-silico approaches. Phenolic compounds reported from marine sources are reviewed from previous literatures. Furthermore, molecular docking was carried out using the online tool CB-Dock. The molecules with good docking and binding energies scores were subjected to ADME, toxicity and drug-likeness analysis. Subsequently, molecules from the docking experiments were also evaluated using the acute toxicity and MD simulation studies. Fourteen phenolic compounds from the reported literatures were reviewed based on the findings, isolation, characterized and applications. Molecular docking studies proved that the phenolic acids have good binding fitting by forming hydrogen bonds with amino acid residues at the binding site of EGFR. Chlorogenic acid, Chicoric acid and Rosmarinic acid showed the best binding energies score and forming hydrogen bonds with amino acid residues compare to the reference drug Erlotinib. Among these compounds, Rosmarinic acid showed the good pharmacokinetics profiles as well as acute toxicity profile. The MD simulation study further revealed that the lead complex is stable and could be future drug to treat the cancer disease. Furthermore, in a wet lab environment, both in-vitro and in-vivo testing will be employed to validate the existing computational results.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Miah Roney
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Tun Razak, Kuantan, Pahang Darul Makmur, Malaysia
- Centre for Bio-aromatic Research, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Tun Razak, Kuantan, Pahang Darul Makmur, Malaysia
| | - Abdul Rashid Issahaku
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Akm Moyeenul Huq
- Centre for Bio-aromatic Research, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Tun Razak, Kuantan, Pahang Darul Makmur, Malaysia
- School of Medicine, Department of Pharmacy, University of Asia Pacific, Bangladesh
| | - Mahmoud E S Soliman
- Molecular Bio-computation and Drug Design Laboratory, School of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Saiful Nizam Tajuddin
- Centre for Bio-aromatic Research, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Tun Razak, Kuantan, Pahang Darul Makmur, Malaysia
| | - Mohd Fadhlizil Fasihi Mohd Aluwi
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Tun Razak, Kuantan, Pahang Darul Makmur, Malaysia
- Centre for Bio-aromatic Research, Universiti Malaysia Pahang Al-Sultan Abdullah, Lebuhraya Tun Razak, Kuantan, Pahang Darul Makmur, Malaysia
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Ornelas García IG, Guerrero Barrera AL, Avelar González FJ, Chávez Vela NA, Gutiérrez Montiel D. Bougainvillea glabra Choisy (Nyctinaginacea): review of phytochemistry and antimicrobial potential. Front Chem 2023; 11:1276514. [PMID: 37927559 PMCID: PMC10620508 DOI: 10.3389/fchem.2023.1276514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 09/22/2023] [Indexed: 11/07/2023] Open
Abstract
The Bougainvillea glabra or bougainvillea is a climbing plant native from South America belonging to the Nyctaginaceae family. The bougainvillea is recognized worldwide for its horticultural importance, due to the color of its bracts, commonly known as "flowers," made up of bracts, which are the striking parts, and the true flowers, which are white and small. Bougainvillea is widely known in traditional medicine to treat respiratory diseases such as cough, asthma, and bronchitis, gastrointestinal diseases, also for its antibacterial and insecticidal capacity. The antimicrobial potential of the involucre of this plant has not been studied, despite research showing a high phytochemical presence of secondary metabolites such as alkanes, phenols, terpenes, and betalains. This review compiles information about the traditional uses of B. glabra, its botanical description, ecological relevance, phytochemistry, antimicrobial and antibiofilm activity, such as the toxicology of bracts and flowers.
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Affiliation(s)
- Ingrid G. Ornelas García
- Centro de Ciencias Básicas, Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
| | - Alma L. Guerrero Barrera
- Centro de Ciencias Básicas, Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
| | - Francisco J. Avelar González
- Centro de Ciencias Básicas, Laboratorio de Estudios Ambientales, Departamento de Fisiología y Farmacología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
| | - Norma A. Chávez Vela
- Laboratorio de Biotecnología, Centro de Ciencias Básicas, Departamento Ingeniería Bioquímica, Aguascalientes, Mexico
| | - Daniela Gutiérrez Montiel
- Centro de Ciencias Básicas, Laboratorio de Biología Celular y Tisular, Departamento de Morfología, Universidad Autónoma de Aguascalientes (UAA), Aguascalientes, Mexico
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7
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Cheng X, Zhang L, Zhang F, Li P, Ji L, Wang K, Jiang J. Coproduction of xylooligosaccharides, glucose, and less-condensed lignin from sugarcane bagasse using syringic acid pretreatment. BIORESOURCE TECHNOLOGY 2023; 386:129527. [PMID: 37481042 DOI: 10.1016/j.biortech.2023.129527] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 07/24/2023]
Abstract
Current strategies for the production of xylooligosaccharides (XOS) from biomass through non-enzymatic catalysis often led to a certain degree of lignin condensation, which severely restrains subsequent enzyme hydrolysis of cellulose. Herein, syringic acid (SA) pretreatment was investigated to coproduce XOS, glucose, and less-condensed lignin from sugarcane bagasse. SA acted as a catalyst and lignin condensation inhibitor during the pretreatment. The highest XOS yield of 58.7% (27.7% xylobiose and 24.7% xylotriose) was obtained at 180 °C - 20 min - 9% SA, and the corresponding xylose/XOS ratio was only 0.42. Compared with the pretreatment at 180 °C - 20 min - 0% SA, the addition of 9% SA increased the glucose yield from 85.7% to 92.4% and decreased the degree of lignin condensation from 0.55 to 0.42. Moreover, 26.7% of SA could be easily recovered. This work presents a pretreatment strategy in which the efficient production of XOS and the suppression of lignin condensation are achieved simultaneously.
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Affiliation(s)
- Xichuang Cheng
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Leping Zhang
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Fenglun Zhang
- Nanjing Institute for the Comprehensive Utilization of Wild Plants, Nanjing, 210042, China
| | - Pengfei Li
- Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning 530006, China
| | - Li Ji
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Kun Wang
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Jianxin Jiang
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
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8
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Wang X, Li Y, Liu S, Wang H, Chang X, Zhang J. Chestnut Shell Polyphenols Inhibit the Growth of Three Food-Spoilage Bacteria by Regulating Key Enzymes of Metabolism. Foods 2023; 12:3312. [PMID: 37685244 PMCID: PMC10486611 DOI: 10.3390/foods12173312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/24/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023] Open
Abstract
The microbial contamination of food poses a threat to human health. Chestnut shells, which are byproducts of chestnut processing, contain polyphenols that exert various physiological effects, and thus have the potential to be used in food preservation. This study investigates the bacteriostatic effect and mechanism(s) of the action of chestnut shell polyphenols (CSPs) on three food-spoilage bacteria, namely Bacillus subtilis, Pseudomonas fragi, and Escherichia coli. To this end, the effect of CSPs on the ultrastructure of each bacterium was determined using scanning electron microscopy and transmission electron microscopy. Moreover, gene expression was analyzed using RT-qPCR. Subsequent molecular docking analysis was employed to elucidate the mechanism of action employed by CSPs via the inhibition of key enzymes. Ultrastructure analysis showed that CSPs damaged the bacterial cell wall and increased permeability. At 0.313 mg/mL, CSPs significantly increased the activity of alkaline phosphatase and lactate dehydrogenase, as well as protein leakage (p < 0.05), whereas the activity of the tricarboxylic acid (TCA) cycle enzymes, isocitrate dehydrogenase and α-ketoglutarate dehydrogenase, were inhibited (p < 0.05). The expression levels of the TCA-related genes gltA, icd, sucA, atpA, citA, odhA, IS178_RS16090, and IS178_RS16290 are also significantly downregulated by CSP treatment (p < 0.05). Moreover, CSPs inhibit respiration and energy metabolism, including ATPase activity and adenosine triphosphate (ATP) synthesis (p < 0.05). Molecular docking determined that proanthocyanidins B1 and C1, the main components of CSPs, are responsible for the antibacterial activity. Therefore, as natural antibacterial substances, CSPs have considerable potential for development and application as natural food preservatives.
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Affiliation(s)
- Xinfang Wang
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Yue Li
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Suwen Liu
- College of Food Science & Technology, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
- Engineering Research Center of Chestnut Industry Technology of Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Hao Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology (TUST), Tianjin 300457, China
| | - Xuedong Chang
- Engineering Research Center of Chestnut Industry Technology of Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Jingzheng Zhang
- Engineering Research Center of Chestnut Industry Technology of Ministry of Education, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
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Cui L, Ma Z, Li W, Ma H, Guo S, Wang D, Niu Y. Inhibitory activity of flavonoids fraction from Astragalus membranaceus Fisch. ex Bunge stems and leaves on Bacillus cereus and its separation and purification. Front Pharmacol 2023; 14:1183393. [PMID: 37538180 PMCID: PMC10395332 DOI: 10.3389/fphar.2023.1183393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 06/13/2023] [Indexed: 08/05/2023] Open
Abstract
Introduction: Astragalus membranaceus Fisch. ex Bunge is a traditional botanical drug with antibacterial, antioxidant, antiviral, and other biological activities. In the process of industrialization of A. membranaceus, most of the aboveground stems and leaves are discarded without resource utilization except for a small amount of low-value applications such as composting. This study explored the antibacterial activity of A. membranaceus stem and leaf extracts to evaluate its potential as a feed antibiotic substitute. Materials and methods: The antibacterial activity of the flavonoid, saponin, and polysaccharide fractions in A. membranaceus stems and leaves was evaluated by the disk diffusion method. The inhibitory activity of the flavonoid fraction from A. membranaceus stems and leaves on B. cereus was explored from the aspects of the growth curve, cell wall, cell membrane, biofilm, bacterial protein, and virulence factors. On this basis, the flavonoid fraction in A. membranaceus stems and leaves were isolated and purified by column chromatography to determine the main antibacterial components. Results: The flavonoid fraction in A. membranaceus stems and leaves had significant inhibitory activity against B. cereus, and the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were 1.5625 and 6.25 mg/mL, respectively. A. membranaceus stem and leaf flavonoid fraction can induce death of B. cereus in many ways, such as inhibiting growth, destroying cell wall and cell membrane integrity, inhibiting biofilm formation, inhibiting bacterial protein synthesis, and downregulating virulence factor expression. In addition, it was clear that the main flavonoid with antibacterial activity in A. membranaceus stems and leaves was isoliquiritigenin. Molecular docking showed that isoliquiritigenin could form a hydrogen bonding force with FtsZ. Conclusion: A. membranaceus stem and leaf flavonoid fractions had significant inhibitory activity against B. cereus, and the main chemical composition was isoliquiritigenin.
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Affiliation(s)
- Liyan Cui
- College of Grassland Science, Shanxi Agricultural University, Jinzhong, Shanxi, China
| | - Zhennan Ma
- College of Life Sciences, Shanxi Agricultural University, Jinzhong, Shanxi, China
| | - Wenhui Li
- College of Life Sciences, Shanxi Agricultural University, Jinzhong, Shanxi, China
| | - Haihui Ma
- College of Life Sciences, Shanxi Agricultural University, Jinzhong, Shanxi, China
| | - Shang Guo
- Shanxi Institute for Functional Food, Shanxi Agricultural University, Taiyuan, Shanxi, China
| | - Defu Wang
- College of Life Sciences, Shanxi Agricultural University, Jinzhong, Shanxi, China
| | - Yanbing Niu
- College of Grassland Science, Shanxi Agricultural University, Jinzhong, Shanxi, China
- College of Life Sciences, Shanxi Agricultural University, Jinzhong, Shanxi, China
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10
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Somade OT, Oyinloye BE, Ajiboye BO, Osukoya OA. Syringic acid demonstrates an anti-inflammatory effect via modulation of the NF-κB-iNOS-COX-2 and JAK-STAT signaling pathways in methyl cellosolve-induced hepato-testicular inflammation in rats. Biochem Biophys Rep 2023; 34:101484. [PMID: 37197735 PMCID: PMC10184048 DOI: 10.1016/j.bbrep.2023.101484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/27/2023] [Accepted: 05/02/2023] [Indexed: 05/19/2023] Open
Abstract
Syringic acid (SACI) is an emerging nutraceutical and antioxidant used in modern Chinese medicine. It has potential neuroprotective, anti-hyperglycemic, and anti-angiogenic properties. Methyl cellosolve (MCEL) has been reported to induce tissue inflammation in the testis, kidney, liver, and lung. This study aimed to investigate the effect and probable mechanism of action of SACI on MCEL-induced hepatic and testicular inflammation in male rats. Compared to the control group, administration of MCEL to rats significantly increased the levels of IL-6, TNF-α, iNOS, COX-2, and NF-κB in the liver and testis. Additionally, the total mRNA expressions of JAK1 (in the liver only), STAT1, and SOCS1 were significantly increased in both the liver and testis, while testicular JAK1 total mRNA levels were significantly decreased. The expression of PIAS1 protein was significantly higher in the liver and testis. Treatments with SACI at 25 (except liver iNOS), 50, and 75 mg/kg significantly decreased the levels of IL-6, TNF-α, iNOS, COX-2, and NF-κB compared to the control group. Furthermore, the total mRNA expressions of JAK1 and SOCS1 in the liver were significantly reduced by all doses of SACI investigated, while the total mRNA levels of liver and testis STAT1 were significantly reduced by 25 and 50 mg/kg of SACI only. In the testis, the mRNA level of SOCS1 was significantly reduced by all doses of SACI compared to MCEL only. Additionally, SACI (at 75 mg/kg) significantly reduced PIAS1 protein expression in the liver, while in the testis, SACI at all investigated doses significantly reduced the expression of PIAS1. In conclusion, SACI demonstrated a hepatic and testicular anti-inflammatory effect by inhibiting the MCEL-induced activation of the NF-κB and JAK-STAT signaling pathways in rats.
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Affiliation(s)
- Oluwatobi T. Somade
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Corresponding author. Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Babatunji E. Oyinloye
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Institute of Drug Research and Development, S.E Bogoro Center, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Biotechnology and Structural Biology (BSB) Group, Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, 3886, South Africa
| | - Basiru O. Ajiboye
- Institute of Drug Research and Development, S.E Bogoro Center, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Phytomedicine and Molecular Toxicology Research Laboratory, Department of Biochemistry, Federal University Oye Ekiti, Oye, Ekiti State, Nigeria
| | - Olukemi A. Osukoya
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
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11
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Saleh S, Salama A, Ali AM, Saleh AK, Elhady BA, Tolba E. Egyptian propolis extract for functionalization of cellulose nanofiber/poly(vinyl alcohol) porous hydrogel along with characterization and biological applications. Sci Rep 2023; 13:7739. [PMID: 37173419 PMCID: PMC10182032 DOI: 10.1038/s41598-023-34901-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 05/09/2023] [Indexed: 05/15/2023] Open
Abstract
Bee propolis is one of the most common natural extracts and has gained significant interest in biomedicine due to its high content of phenolic acids and flavonoids, which are responsible for the antioxidant activity of natural products. The present study report that the propolis extract (PE) was produced by ethanol in the surrounding environment. The obtained PE was added at different concentrations to cellulose nanofiber (CNF)/poly(vinyl alcohol) (PVA), and subjected to freezing thawing and freeze drying methods to develop porous bioactive matrices. Scanning electron microscope (SEM) observations displayed that the prepared samples had an interconnected porous structure with pore sizes in the range of 10-100 μm. The high performance liquid chromatography (HPLC) results of PE showed around 18 polyphenol compounds, with the highest amounts of hesperetin (183.7 µg/mL), chlorogenic acid (96.9 µg/mL) and caffeic acid (90.2 µg/mL). The antibacterial activity results indicated that both PE and PE-functionalized hydrogels exhibited a potential antimicrobial effects against Escherichia coli, Salmonella typhimurium, Streptococcus mutans, and Candida albicans. The in vitro test cell culture experiments indicated that the cells on the PE-functionalized hydrogels had the greatest viability, adhesion, and spreading of cells. Altogether, these data highlight the interesting effect of propolis bio-functionalization to enhance the biological features of CNF/PVA hydrogel as a functional matrix for biomedical applications.
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Affiliation(s)
- Safaa Saleh
- Department of Physics, Faculty of Science, Al-Azhar University, (Girls Branch), P.O Box 11884, Cairo, Egypt
| | - Ahmed Salama
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Amira M Ali
- Department of Physics, Faculty of Science, Al-Azhar University, (Girls Branch), P.O Box 11884, Cairo, Egypt
| | - Ahmed K Saleh
- Cellulose and Paper Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt.
| | - Bothaina Abd Elhady
- Polymers and Pigments Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
| | - Emad Tolba
- Polymers and Pigments Department, National Research Centre, 33 El-Bohouth St., Dokki, P.O. 12622, Giza, Egypt
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12
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Wang K, Wang H, Wu Y, Yi C, Lv Y, Luo H, Yang T. The antibacterial mechanism of compound preservatives combined with low voltage electric fields on the preservation of steamed mussels (Mytilus edulis) stored at ice-temperature. Front Nutr 2023; 10:1126456. [PMID: 37006930 PMCID: PMC10063890 DOI: 10.3389/fnut.2023.1126456] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 03/01/2023] [Indexed: 03/19/2023] Open
Abstract
Mussels are a kind of economically valuable ocean bivalve shellfish. It has a short harvest period and is susceptible to contamination during storage and processing. Having proper preservation methods is critical to prevent quality deterioration. However, the effect of low voltage variable frequency electric field and compound preservative on the freshness of steamed mussels in ice-temperature storage are still unknown. We utilized the method of coefficient variation weighting to calculate the overall scores of steamed mussels stored under different preservation conditions. The protein physicochemical properties of samples, the growth curves of two dominant spoilage bacteria; Bacillus subtilis and Pseudomonas in the mussels as well as the Structural changes of the cell membranes were mensurated. The results show that compared with the preservative group and the low voltage variable frequency electric field group, the compound preservatives combined with the electric field group had the highest overall score and thus the best preservation effect. Compared with the blank group, the total sulfhydryl content and myogenic fibrin content of the combined group decreased at the slowest rate, 19.46%, and 44.92%, respectively. The hydrophobicity of the protein surface increased by only 5.67%, with the best water retention, indicating that the samples of the combined group had the least protein deterioration in the combined group. The inhibition mechanism of the combined group inhibited the growth of two dominant spoilage bacteria: Bacillus subtilis and Pseudomonas, in the mussels, destroying the integrity of the cell membrane structure and changing the cell morphology. Overall, we found that the combination of the composite preservatives and the low voltage variable frequency electric field can maintain the best quality of steamed mussels during ice-temperature storage and slow down the rate of protein deterioration during storage. This study proposed a new method of mussel preservation, which provides a new idea for the application of low voltage variable frequency electric field and compound preservative in the preservation of aquatic products.
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Affiliation(s)
- Kunmei Wang
- Zhejiang Provincial Key Laboratory of Health Risk Factors for Seafood, Collaborative Innovation Center of Seafood Deep Processing, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Han Wang
- Zhejiang Provincial Key Laboratory of Health Risk Factors for Seafood, Collaborative Innovation Center of Seafood Deep Processing, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Yue Wu
- Zhejiang Provincial Key Laboratory of Health Risk Factors for Seafood, Collaborative Innovation Center of Seafood Deep Processing, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Chong Yi
- Zhejiang Provincial Key Laboratory of Health Risk Factors for Seafood, Collaborative Innovation Center of Seafood Deep Processing, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Yanxia Lv
- Zhejiang Provincial Key Laboratory of Health Risk Factors for Seafood, Collaborative Innovation Center of Seafood Deep Processing, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Hongyu Luo
- Zhejiang Provincial Key Laboratory of Health Risk Factors for Seafood, Collaborative Innovation Center of Seafood Deep Processing, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
- *Correspondence: Hongyu Luo, ; Tao Yang,
| | - Tao Yang
- Yantai Marine Economic Research Institute, Yantai, China
- *Correspondence: Hongyu Luo, ; Tao Yang,
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13
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Rahaman SN, Ayyadurai N, Anandasadagopan SK. Synergistic effect of vancomycin and gallic acid loaded MCM-41 mesoporous silica nanoparticles for septic arthritis management. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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14
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Antimicrobial Activity of Sertraline on Listeria monocytogenes. Int J Mol Sci 2023; 24:ijms24054678. [PMID: 36902108 PMCID: PMC10002541 DOI: 10.3390/ijms24054678] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/31/2023] [Accepted: 02/22/2023] [Indexed: 03/04/2023] Open
Abstract
We explored the antimicrobial activity of sertraline on Listeria monocytogenes and further investigated the effects of sertraline on biofilm formation and the virulence gene expression of L. monocytogenes. The minimum inhibitory concentration and minimum bactericidal concentration for sertraline against L. monocytogenes were in the range of 16-32 μg/mL and 64 μg/mL, respectively. Sertraline-dependent damage of the cell membrane and a decrease in intracellular ATP and pHin in L. monocytogenes were observed. In addition, sertraline reduced the biofilm formation efficiency of the L. monocytogenes strains. Importantly, low concentrations (0.1 μg/mL and 1 μg/mL) of sertraline significantly down-regulated the expression levels of various L. monocytogens virulence genes (prfA, actA, degU, flaA, sigB, ltrC and sufS). These results collectively suggest a role of sertraline for the control of L. monocytogenes in the food industry.
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15
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Song W, Xin J, Yu C, Xia C, Pan Y. Alkyl ferulic acid esters: Evaluating their structure and antibacterial properties. Front Microbiol 2023; 14:1135308. [PMID: 36860482 PMCID: PMC9968881 DOI: 10.3389/fmicb.2023.1135308] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 01/19/2023] [Indexed: 02/16/2023] Open
Abstract
Ferulic acid (FA) is a natural antibacterial agent rich in plants, FA has excellent antioxidant and antibacterial properties. However, because of its short alkane chain and large polarity, FA is difficult to penetrate the soluble lipid bilayer in the biofilm to enter the cell to play an inhibitory role, limiting its biological activity. To improve the antibacterial activity of FA, with the catalytic condition of Novozym 435, four alkyl ferulic acid esters (FCs) with different alkyl chain lengths were obtained by fatty alcohols (including 1-propanol (C3), 1-hexanol (C6), nonanol (C9), and lauryl alcohol (C12)) modification. The effect of FCs on P. aeruginosa was determined by Minimum inhibitory concentrations (MIC), minimum bactericidal concentrations (MBC), Growth curves, alkaline phosphatase (AKP) activity, crystal violet method, scanning electron microscopy (SEM), membrane potential, PI, cell contents leakage. Results showed that the antibacterial activity of FCs increased after esterification, and the antibacterial activity significantly increased and then decreased with the extension of the alkyl chain of the FCs. Hexyl ferulate (FC6) showed the best antibacterial activities against E. coli and P. aeruginosa (MIC for E. coli was 0.5 mg/ml, MIC for P. aeruginosa was 0.4 mg/ml). And Propyl ferulate (FC3) and FC6 showed the best antibacterial activities S. aureus and B. subtilis (MIC for S. aureus was 0.4 mg/ml, The MIC of B. subtilis was 1.1 mg/ml). In addition, the growth, AKP activity, bacterial biofilm, bacterial cell morphology, membrane potential and cell contents leakage of P. aeruginosa after different FCs were investigated, which found that FCs could damage the cell wall of P. aeruginosa and showed different effects on the P. aeruginosa cell biofilm. FC6 showed the best inhibition on the biofilm formation of P. aeruginosa cells, which caused the surface of P. aeruginosa cells to be rough and wrinkled. Some P. aeruginosa cells showed aggregation and adhesion, even rupture. The membrane hyperpolarization was obvious, which appeared as holes, leading to cell contents leakage (protein and nucleic acid). All these results concluded that the antibacterial activities FCs against foodborne pathogens depended on different fatty alcohol esterification of FA. FC6 showed the best inhibition on P. aeruginosa due to its effect on P. aeruginosa cell walls and biofilms and the leak of the cell contents. This study provides more practical methods and a theoretical basis for giving full play to the bacteriostatic effect of plant FA.
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Affiliation(s)
- Wei Song
- Key Laboratory for Food Science and Engineering, Harbin University of Commerce, Harbin, China
| | - Jiaying Xin
- Key Laboratory for Food Science and Engineering, Harbin University of Commerce, Harbin, China,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China,*Correspondence: Jiaying Xin, ✉
| | - Chong Yu
- Institute of Microbiology Heilongjiang Academy of Sciences, Harbin, China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Yu Pan
- Institute of Microbiology Heilongjiang Academy of Sciences, Harbin, China
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16
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Linalool against Hafnia alvei, its antibacterial mechanism revealed by metabolomic analyses. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2022.102316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Wang Q, Peng Y, Chai L, Ding W. Antimicrobial effect of sorbic acid-loaded chitosan/tripolyphosphate nanoparticles on Pseudomonas aeruginosa. Int J Biol Macromol 2023; 226:1031-1040. [PMID: 36455825 DOI: 10.1016/j.ijbiomac.2022.11.220] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/18/2022] [Accepted: 11/21/2022] [Indexed: 11/29/2022]
Abstract
Sorbic acid-loaded chitosan/tripolyphosphate nanoparticles (SANs) have previously been shown to exert both antibacterial and antioxidant effects on Chinese sausage. In this study, the minimum inhibitory concentrations (MICs) of SANs against two Pseudomonas aeruginosa strains were determined. The blank control group (BC) served as the negative control, while the chitosan/tripolyphosphate nanoparticles (CTNs) group and free sorbic acid (SA) group served as the positive controls. Tests conducted under five different pH conditions (5/6/7/8/9) revealed that the SANs exhibited a good bacteriostatic effect against P. aeruginosa. Variations in the metabolism, cell membrane or cell wall integrity, and morphology of P. aeruginosa were measured to evaluate the effects of SANs on their intracellular and extracellular components. The MIC of SANs for the two P. aeruginosa strains was determined to be 150 μg/mL. SANs delayed the growth of P. aeruginosa and severely damaged both its inner and outer cell membranes. The heteromorphism of the bacteria as observed by field emission scanning electron microscopy (FESEM), verified the aforementioned results. The results showed SANs could effectively inhibit the growth of P. aeruginosa and exert antibacterial ability in a wider range of acid-base environments. This study broadens the application of SANs in food processing and provides experimental basis.
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Affiliation(s)
- Qian Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Yue Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Lina Chai
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
| | - Wu Ding
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
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18
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Application of the Luminescent luxCDABE Gene for the Rapid Screening of Antibacterial Substances Targeting Pseudomonas aeruginosa. Foods 2023; 12:foods12020392. [PMID: 36673482 PMCID: PMC9857705 DOI: 10.3390/foods12020392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/19/2023] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a typical Gram-negative bacterium that can cause the spoilage of catered food products. Using a luminescent reporter gene (luxCDABE), this study sought to construct a cell-based biosensor (PAO1-CE) to rapidly screen antibacterial substances against P. aeruginosa. A total of six antibiotics belonging to five categories were used as the model test substances. The results of the bioluminescence detection method were verified using traditional antibacterial research assessments. The correlation coefficient of the regression equation fitting the data generated using this method was greater than 0.98, supporting the credibility of this approach. Additionally, the EC50 of each of the antibiotics assessed in this study was lower than the 1/2 MIC determined by conventional means. All six of the antibiotics caused varying degrees of damage to the cell membrane and cell wall of P. aeruginosa. Importantly, this novel method helped shorten the time necessary for active-compound detection and could be used for high-throughput detection, which would also help improve the detection efficiency. The application of this method towards the discovery of novel antibacterial compounds targeting P. aeruginosa holds substantial promise for greatly improving the efficiency of compound discovery.
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Li D, Luo D, Hu S, Zhao H, Peng B. Syringic Acid Suppressed Proliferation, Invasion, and Migration via Inhibition of Matrix Metalloproteinases Expression on Glioblastoma Cells by Promoting Apoptosis. Curr Pharm Biotechnol 2023; 24:310-316. [PMID: 35570553 DOI: 10.2174/1389201023666220513100129] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/20/2022] [Accepted: 03/02/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Human brain tumor glioblastoma (GBM) is the most hostile malignancy, currently lacking a successful cure and good prognosis. OBJECTIVE To examine the anticancer effects of syringic acid (SA) on human cancer GBM cells. METHODOLOGY The different doses of SA were added to GBM cells to study its effect on viability, invasion, relocation, apoptosis, and mRNA and protein levels. Hence, we explored the antiproliferative, anti-invasive, and apoptotic activity of SA on GBM human U-251 cells. RESULTS MTT assay and live/dead assay revealed the anti-proliferative activity of SA on U-251 glioma cells. Apoptotic activity of SA was shown by DAPI staining, caspase-3, Bax, and Bcl-2 mRNA expressions. The cell cycle regulation was also confirmed by reducing the mRNA expression of cyclinD1, CDK4, and CDK6. Treatment of SA with U-251 cells suppressed MMPs expressions and enhanced TIMPs protein levels. CONCLUSION Our findings put forward that SA could prevent GBM cells' invasion and relocation. SA is an ideal neuroprotective agent for controlling brain malignancy.
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Affiliation(s)
- Dan Li
- Department of Neurosurgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Dongdong Luo
- Department of Neurosurgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Su Hu
- Department of Neurosurgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Hailin Zhao
- Department of Neurosurgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, 510095, China
| | - Biao Peng
- Department of Neurosurgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, 510095, China
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20
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Wang H, Li Y, Li Z, Ma R, Bai X, Zhan X, Luo K, Su R, Li X, Xia X, Shi C. Inhibition of Cronobacter sakazakii by Litsea cubeba Essential Oil and the Antibacterial Mechanism. Foods 2022; 11:foods11233900. [PMID: 36496708 PMCID: PMC9736361 DOI: 10.3390/foods11233900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
Litsea cubeba essential oil (LC-EO) has anti-insecticidal, antioxidant, and anticancer proper-ties; however, its antimicrobial activity toward Cronobacter sakazakii has not yet been researched extensively. The objective of this study was to investigate the antimicrobial and antibiofilm effects of LC-EO toward C. sakazakii, along with the underlying mechanisms. The minimum inhibitory concentrations of LC-EO toward eight different C. sakazakii strains ranged from 1.5 to 4.0 μL/mL, and LC-EO exposure showed a longer lag phase and lower specific growth compared to untreated bacteria. LC-EO increased reactive oxygen species production, decreased the integrity of the cell membrane, caused cell membrane depolarization, and decreased the ATP concentration in the cell, showing that LC-EO caused cellular damage associated with membrane permeability. LC-EO induced morphological changes in the cells. LC-EO inhibited C. sakazakii in reconstituted infant milk formula at 50 °C, and showed effective inactivation of C. sakazakii biofilms on stainless steel surfaces. Confocal laser scanning and attenuated total reflection-Fourier-transform infrared spectrometry indicated that the biofilms were disrupted by LC-EO. These findings suggest a potential for applying LC-EO in the prevention and control of C. sakazakii in the dairy industry as a natural antimicrobial and antibiofilm agent.
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Affiliation(s)
- Haoran Wang
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Yulu Li
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Zhuo Li
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Run Ma
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Xiangyang Bai
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Xiangjun Zhan
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Kunyao Luo
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Ruiying Su
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Xuejiao Li
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Xiaodong Xia
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116304, China
| | - Chao Shi
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
- Correspondence: ; Tel.: +86-29-87092486; Fax: +86-29-87091391
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Mohammed FS, Sevindik M, Uysal I, Sevindik E, Akgül H. A Natural Material for Suppressing the Effects of Oxidative Stress: Biological Activities of Alcea kurdica. BIOL BULL+ 2022. [DOI: 10.1134/s1062359022140102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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22
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Inhibitory effect of protocatechualdehyde on Yersinia enterocolitica and its critical virulence factors. Microb Pathog 2022; 173:105877. [DOI: 10.1016/j.micpath.2022.105877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/23/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022]
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23
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Sansenya S, Payaka A. Inhibitory potential of phenolic compounds of Thai colored rice (Oryza sativa L.) against α-glucosidase and α-amylase through in vitro and in silico studies. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:6718-6726. [PMID: 35620810 DOI: 10.1002/jsfa.12039] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 04/30/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND This study investigated the inhibitory efficiency of phenolic compounds content methyl vanillate, syringic acid and vanillic acid against α-glucosidase and α-amylase. The phenolic compound contents of 10 Thai colored rice cultivars were also determined, and the relationship between the inhibitory efficiency of colored rice extract with methyl vanillate, syringic acid and vanillic acid was evaluated. RESULTS The results revealed that the inhibition efficiency of methyl vanillate, syringic acid and vanillic acid was higher against α-glucosidase than against α-amylase. Inhibitory activity of vanillic acid against α-glucosidase and α-amylase was highest, with IC50 of 0.100 ± 0.01 and 0.130 ± 0.02 mmol L-1 , respectively. Docking study showed strong binding by three hydrogen bonds and four hydrogen bonds between vanillic acid with the amino acid in the binding site of α-glucosidase and α-amylase, respectively. Inhibition modes of these phenolic compounds were defined as a mixed type inhibition against α-glucosidase. Highest phenolic compound contents of methyl vanillate, syringic acid and vanillic acid were obtained from methanol extracts of all rice cultivars. The methanol extracts of all colored rice cultivars such as Khao Leum Pua also showed the highest inhibition potential against α-glucosidase and α-amylase. The results indicated that these phenolic compound contents were closely related to the inhibition potential of colored rice extracts against α-glucosidase and α-amylase. CONCLUSION Our results suggest that rice, especially colored rice cultivars, has the source of phenolic compounds. Moreover, the phenolic compounds had the greatest source of natural inhibitor against α-glucosidase and α-amylase. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Sompong Sansenya
- Department of Chemistry, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, Thailand
| | - Apirak Payaka
- School of Science, Walailak University, Nakhon Si Thammarat, Thailand
- Research Group in Applied, Computational and Theoretical Science (ACTS), Walailak University, Nakhon Si Thammarat, Thailand
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Xi M, Hou Y, Wang R, Ji M, Cai Y, Ao J, Shen H, Li M, Wang J, Luo A. Potential Application of Luteolin as an Active Antibacterial Composition in the Development of Hand Sanitizer Products. Molecules 2022; 27:7342. [PMID: 36364167 PMCID: PMC9657794 DOI: 10.3390/molecules27217342] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 08/26/2023] Open
Abstract
Antibacterial hand sanitizers could play a prominent role in slowing down the spread and infection of hand bacterial pathogens; luteolin (LUT) is potentially useful as an antibacterial component. Therefore, this study elucidated the antibacterial mechanism of LUT against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) and developed an antibacterial hand sanitizer. The results showed that LUT had excellent antibacterial activity against both E. coli (minimum inhibitory concentration (MIC) = 312.5 μg/mL, minimal bactericidal concentration (MBC) = 625 μg/mL), and S. aureus (MIC = 312.5 μg/mL, MBC = 625 μg/mL). Furthermore, LUT induced cell dysfunction in E. coli and S. aureus, changed membrane permeability, and promoted the leakage of cellular contents. Confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM) analysis showed that LUT treatment affected cell structure and disrupted cell membrane integrity. The Fourier transform infrared analysis (FTIR) also confirmed that the LUT acted on the cell membranes of both E. coli and S. aureus. Overall, the application of LUT in hand sanitizer had better inhibition effects. Therefore, this study could provide insight into expanding the application of LUT in the hand sanitizer markets.
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Affiliation(s)
| | | | | | | | | | | | | | - Mei Li
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Jun Wang
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Anwei Luo
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
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25
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Polat Yemiş G, Sezer E, Sıçramaz H. Inhibitory Effect of Sodium Alginate Nanoemulsion Coating Containing Myrtle Essential Oil ( Myrtus communis L.) on Listeria monocytogenes in Kasar Cheese. Molecules 2022; 27:7298. [PMID: 36364124 PMCID: PMC9658201 DOI: 10.3390/molecules27217298] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 03/09/2024] Open
Abstract
The present study aimed to characterize the physical properties of nanoemulsion-based sodium alginate edible coatings containing myrtle (Myrtus communis L.) essential oil and to determine its inhibitory effects on Listeria monocytogenes in fresh Kasar cheese during the 24-day storage at 4 °C. The GC-MS analysis showed that the main components of myrtle essential oil were 1,8-cineol (38.64%), α-pinene (30.19%), d-limonene (7.51%), and α-ocimene (6.57%). Myrtle essential oil showed an inhibitory effect on all tested L. monocytogenes strains and this effect significantly increased after ultrasonication. Minimum inhibitory and minimum bactericidal concentrations of myrtle essential oil nanoemulsion were found to be 4.00-4.67 mg/mL and 5.00-7.33 mg/mL, respectively. The antibacterial activity of myrtle essential oil nanoemulsion against L. monocytogenes was confirmed by the membrane integrity and FESEM analyses. Nanoemulsion coatings containing myrtle essential oil showed antibacterial activity against L. monocytogenes with no adverse effects on the physicochemical properties of cheese samples. Nanoemulsion coatings containing 1.0% and 2.0% myrtle essential oil reduced the L. monocytogenes population in cheese during the storage by 0.42 and 0.88 log cfu/g, respectively. These results revealed that nanoemulsion-based alginate edible coatings containing myrtle essential oil have the potential to be used as a natural food preservative.
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Affiliation(s)
- Gökçe Polat Yemiş
- Department of Food Engineering, Faculty of Engineering, Sakarya University, Serdivan 54187, Turkey
- Sakarya University Research, Development, and Application Center (SARGEM), Serdivan 54187, Turkey
| | - Elif Sezer
- Department of Food Engineering, Faculty of Engineering, Sakarya University, Serdivan 54187, Turkey
| | - Hatice Sıçramaz
- Department of Food Engineering, Faculty of Engineering, Sakarya University, Serdivan 54187, Turkey
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Antifungal potential of isoespintanol extracted from Oxandra xylopioides diels (Annonaceae) against intrahospital isolations of Candida SPP. Heliyon 2022; 8:e11110. [PMID: 36303897 PMCID: PMC9593293 DOI: 10.1016/j.heliyon.2022.e11110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 04/24/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to evaluate the antifungal activity of isoespintanol (ISO) extracted from Oxandra xylopioides Diels (Annonaceae) against clinical isolates of Candida spp. Isoespintanol was obtained from the petroleum benzine extract of the leaves and was identified by nuclear magnetic resonance (NMR) and mass spectrometry (MS). For antifungal activity experiments, the broth microdilution method was used. The results show an inhibitory effect against Candida spp., with minimum inhibitory concentration (MIC) values between 450.4-503.3 μg/mL. Furthermore, the inhibitory effect of ISO against fungal biofilms is highlighted, even in some cases, greater than the effect shown by amphotericin B (AFB) and in others, where AFB showed no effect. Assays with fluorescent staining with acridine orange (AO) and ethidium bromide (EB), transmission electron microscopy (TEM), Evans blue, measurement of extracellular pH and leakage of intracellular material, evidenced damage at the level of fungal membranes and general cell damage, when cells were exposed to ISO, compared to untreated cells. The results of this research, serve as the basis for future studies in the establishment of the mechanisms of antifungal action of ISO, which could serve as an adjunct in the treatment of infections by these yeasts.
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27
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Syringic Acid Ameliorates Cardiac, Hepatic, Renal and Neuronal Damage Induced by Chronic Hyperglycaemia in Wistar Rats: A Behavioural, Biochemical and Histological Analysis. Molecules 2022; 27:molecules27196722. [PMID: 36235257 PMCID: PMC9573038 DOI: 10.3390/molecules27196722] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 11/16/2022] Open
Abstract
This study investigated the effects of syringic acid (SA) on renal, cardiac, hepatic, and neuronal diabetic complications in streptozotocin-induced neonatal (nSTZ) diabetic rats. STZ (110 mg/kg i.p) was injected into Wistar rat neonates as a split dose (second and third postnatal day). Diabetes mellitus was diagnosed in adults by measuring fasting blood glucose levels, urine volume, and food and water intake. The treatment of SA (25 mg/kg, 50 mg/kg p.o) was given from the 8th to 18th postnatal week. To assess the development of diabetic complications and the effect of therapy, biochemical indicators in serum and behavioural parameters were recorded at specific intervals during the study period. SA (25 mg/kg, 50 mg/kg p.o) treatment reduced hyperglycaemia, polydipsia, polyphagia, polyuria, relative organ weight, cardiac hypertrophic indices, inflammatory markers, cell injury markers, glycated haemoglobin, histopathological score, and oxidative stress, and increased Na/K ATPase activity. These findings suggest that SA might significantly alleviate diabetic complications and/or renal, neuronal, cardiac, and hepatic damage in nSTZ diabetic rats.
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28
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Somade OT, Oyinloye BE, Ajiboye BO, Osukoya OA, Adeyi OE. Effect of syringic acid on steroid and gonadotropic hormones, hematological indices, sperm characteristics and morphologies, and markers of tissue damage in methyl cellosolve-administered rats. Biochem Biophys Rep 2022; 32:101360. [PMID: 36237443 PMCID: PMC9550613 DOI: 10.1016/j.bbrep.2022.101360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022] Open
Abstract
Methyl cellosolve (MTC) is an established gonadotoxic and hematotoxic compound that is commonly and universally utilized in herbicide, liquid soap, stain, dye, paint, and brake fluid manufacturing industries as a solvent. Due to its wide range usage, this study therefore investigated the effect of syringic acid (SYAC) on hematological indices, sperm characteristics and morphologies, and markers of tissue damage in MTC administered male Wistar rats. Thirty (30) rats divided into six groups were used. Rats in group 1 served as control, those in group 2 were administered MTC for 30 consecutive days, those in groups 3, 4, and 5 were treated with 25, 50, and 75 mg/kg body weight of SYAC respectively also for 30 consecutive days immediately after each day MTC administrations, while rats in group 6 received 75 mg/kg body weight of SYAC only throughout. Compared with control, administrations of MTC resulted in a significant decrease in spermatozoa count, number of normal and live spermatozoa, Hb count, MCH, MCHC, serum TC, and LH, while number of abnormal spermatozoa, RBC and WBC counts, activities of serum AST, ALT, GGT, LDH, and ADH were significantly increased. Treatments with 25 mg/kg of SYAC significantly reduced the RBC and WBC counts, serum activities of AST, ALT, GGT, and increased TC concentration. Treatments with 50 mg/kg SYAC significantly lowered the number of abnormal spermatozoa, RBC count, activities of serum ALT, AST, LDH, ADH, and increased the number of normal spermatozoa, MCV, MCH, and MCHC, while 75 mg/kg of SYAC significantly decreased the serum activities of AST, ALT, GGT, LDH, ADH, and increased serum TC concentration. Findings from this study have revealed the hepatoprotective effect of SYAC at all doses investigated but did not confer spermatoprotection and hematoprotection against MTC-induced toxicities, and looking at the 3 doses investigated, 50 mg/kg of SYAC yielded the best effect. MTC significantly decreased live sperm, sperm count, MCH, MCHC, and Hb counts. MTC significantly increased number of abnormal sperm, RBC and WBC counts. MTC significantly increased serum activities of AST, ALT, GGT, LDH, and ADH. SYAC significantly decreased RBC and WBC counts, AST, ALT, GGT, LDH, and ADH. SYAC significantly increased number of normal sperm, MCV, MCH, and MCHC counts.
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Affiliation(s)
- Oluwatobi T. Somade
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria,Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria,Corresponding author. Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Babatunji E. Oyinloye
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria,Institute of Drug Research and Development, S.E Bogoro Center, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria,Biotechnology and Structural Biology (BSB) Group, Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, 3886, South Africa
| | - Bashiru O. Ajiboye
- Institute of Drug Research and Development, S.E Bogoro Center, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria,Phytomedicine and Molecular Toxicology Research Laboratory, Department of Biochemistry, Federal University Oye Ekiti, Oye, Ekiti State, Nigeria
| | - Olukemi A. Osukoya
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
| | - Olubisi E. Adeyi
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
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29
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Chen YN, Li HL, Huang JJ, Li MJ, Liao T, Zu XY. Antimicrobial activities and mechanism of sturgeon spermary protein extracts against Escherichia coli. Front Nutr 2022; 9:1021338. [PMID: 36263303 PMCID: PMC9575452 DOI: 10.3389/fnut.2022.1021338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
This study aimed to evaluate the antimicrobial activities and mechanism of sturgeon spermary protein extracts (SSPE) against Escherichia coli. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined. Cell structural change was analyzed using scanning electron microscopy-energy dispersive X-ray spectrometry and transmission electron microscope. Moreover, pH, zeta potential, membrane potential, intracellular ATP concentrations and the interaction of SSPE with genomic DNA were analyzed. Results showed that molecular weight of SSPE is 13.4 kDa, the content of basic amino acids is the highest, in which arginine accounts for 73.2%. The MIC and MBC of SSPE for E. coli were 0.05 and 5 mg/mL, respectively. After SSPE treatment, cell membrane permeability changes, zeta potential decrease and genomic DNA lysis occurred in E. coli, which indicated it exerted bacteriostatic effects either independently or simultaneously by destroying the cell membrane and genomic DNA. These findings indicated that SSPE has potential to be a natural antiseptic.
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Affiliation(s)
- Ya-Nan Chen
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China,School of Biological Engineering and Food, Hubei University of Technology, Wuhan, China
| | - Hai-Lan Li
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China,Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Wuhan, China
| | - Jia-Jun Huang
- School of Biological Engineering and Food, Hubei University of Technology, Wuhan, China
| | - Mei-Jin Li
- School of Biological Engineering and Food, Hubei University of Technology, Wuhan, China
| | - Tao Liao
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China
| | - Xiao-Yan Zu
- Institute of Agricultural Products Processing and Nuclear Agricultural Technology, Hubei Academy of Agricultural Sciences, Wuhan, China,Key Laboratory of Agricultural Products Cold Chain Logistics, Ministry of Agriculture and Rural Affairs, Wuhan, China,*Correspondence: Xiao-Yan Zu
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30
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Chang Y, Xia S, Fei P, Feng H, Fan F, Liu Y, Qin L, Ma L, Song Q, Liu Y. Houttuynia cordata Thunb. crude extract inactivates Cronobacter sakazakii: Antibacterial components, antibacterial mechanism, and application as a natural disinfectant. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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31
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Yang S, Tian L, Wang X, Wu M, Liao S, Fu J, Xiong W, Gong G. Metabolomics analysis and membrane damage measurement reveal the antibacterial mechanism of lipoic acid against Yersinia enterocolitica. Food Funct 2022; 13:11476-11488. [PMID: 36178296 DOI: 10.1039/d2fo01306a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Yersinia enterocolitica is a pathogenic microorganism that can cause food-borne diseases. Lipoic acid (LA) has been used as an antioxidant against bacteria, but its antibacterial mechanism is rarely reported. This study aims to explore the antibacterial mechanism of LA and its effect on the metabolites of Y. enterocolitica through membrane damage and metabolomics analysis. The results showed that the minimum inhibitory concentration (MIC) of LA against Y. enterocolitica was 2.5 mg mL-1. The membrane potential was depolarized, and intracellular pH (pHin) and ATP were significantly reduced, indicating that LA destroys the cell membrane structure. Confocal laser scanning microscopy (CLSM) and field emission scanning electron microscopy (FESEM) further confirmed LA-induced cell membrane damage. The metabolic profile of Y. enterocolitica following LA treatment was analyzed by liquid chromatography-mass spectrometry (LC-MS). In the metabolome evaluation, 6209 differential metabolites were screened, including 3394 up-regulated and 2815 down-regulated metabolites. Fifteen metabolic pathways of Y. enterocolitica exhibited significant changes after LA treatment, including the pathways important for amino acid and nucleotide metabolism. The results show that LA is a bacteriostatic substance with potential application value in the food industry.
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Affiliation(s)
- Siqi Yang
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China.
| | - Lu Tian
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China.
| | - Xuyang Wang
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China.
| | - Mi Wu
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China.
| | - Sichen Liao
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China.
| | - Jiapeng Fu
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China.
| | - Wangdan Xiong
- Grassl and Agri-Husbandry Research Center, School of Grassl and Science, Qingdao Agricultural University, Qingdao, Shandong, 266109, China.
| | - Guoli Gong
- College of Food and Bioengineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China.
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32
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Effects of cinnamaldehyde against planktonic bacteria and biofilm formation of Shigella flexneri. Microb Pathog 2022; 171:105741. [PMID: 36038086 DOI: 10.1016/j.micpath.2022.105741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/24/2022]
Abstract
Cinnamaldehyde (CA) has demonstrated anti-inflammatory, anti-tumor and anti-cancer activities; Its antimicrobial and antibiofilm actions against Shigella flexneri, on the other hand, have not been investigated. Sh. flexneri is a gram-negative foodborne pathogen that can be widely found in nature and some industrial production environments. In this current research, our aim was to examine the influences of CA on planktonic bacteria and biofilm formation. The minimum inhibitory concentration (MIC) of CA against Sh. flexneri strain was 100 μg/mL, while bacteria treated with CA showed a longer lag phase compared with the untreated control. CA effectively inactivated the Sh. flexneri in LB broth and fresh lettuce juice. CA treatment resulted in cell membrane permeability changes and dysfunction, as proven by cell membrane depolarization, decreased intracellular ATP concentration. In addition, CA was also discovered to increase the level of reactive oxygen species (ROS) in cells, and induce morphological changes in cells. Crystal violet staining showed that the biomass of biofilm was decreased significantly with CA in 24 h. Light microscopy and field emission scanning electron microscopy (FESEM) observations demonstrated decreased biofilm adhesion and destruction of biofilm architecture after treatment with CA. These findings indicated that CA acts as a natural bacteriostatic agent to control Sh. flexneri in food processing and production.
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Cai Y, Zou G, Xi M, Hou Y, Shen H, Ao J, Li M, Wang J, Luo A. Juglone Inhibits Listeria monocytogenes ATCC 19115 by Targeting Cell Membrane and Protein. Foods 2022; 11:foods11172558. [PMID: 36076744 PMCID: PMC9455723 DOI: 10.3390/foods11172558] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/12/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022] Open
Abstract
Foodborne disease caused by Listeria monocytogenes is a major global food safety problem. A potential solution is the antimicrobial development of the highly bioactive natural product juglone, yet few studies exist on its antibacterial mechanism against L. monocytogenes. Thus, we aimed to elucidate the antibacterial mechanism of action of juglone against L. monocytogenes by determining the resultant cell morphology, membrane permeability, membrane integrity, and proteome changes. The minimum inhibitory concentration of juglone against L. monocytogenes was 50 μg/mL, and L. monocytogenes treated with juglone had longer lag phases compared to controls. Juglone induced L. monocytogenes cell dysfunction, leakage of potassium ions, and membrane potential hyperpolarization. Confocal laser scanning microscopy and field-emission-gun scanning electron microscope assays revealed clear membrane damage due to juglone treatment. Fourier transform infrared analyses showed that L. monocytogenes responded to juglone by some conformational and compositional changes in the molecular makeup of the cell membrane. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis showed that juglone either destroyed proteins or inhibited proteins synthesis in L. monocytogenes. Therefore, our findings established juglone as a natural antibacterial agent with potential to control foodborne L. monocytogenes infections.
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34
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Tian L, Liao S, Guo W, Wang X, Wu M, Xue Z, Yang S, Fu J, Liu Z, Gong G. Evaluation of the membrane damage mechanism of chlorogenic acid against
Bacillus cereus
and
Micrococcus luteus
a simulation study on antibacterial growth in food. J Food Saf 2022. [DOI: 10.1111/jfs.13006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lu Tian
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Sichen Liao
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Wenyao Guo
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Xuyang Wang
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Mi Wu
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Zhifei Xue
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Siqi Yang
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Jiapeng Fu
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Zhiqiang Liu
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
| | - Guoli Gong
- School of Food and Biological Engineering Shaanxi University of Science and Technology Xi'an Shaanxi China
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Verbascoside: An Efficient and Safe Natural Antibacterial Adjuvant for Preventing Bacterial Contamination of Fresh Meat. Molecules 2022; 27:molecules27154943. [PMID: 35956890 PMCID: PMC9370273 DOI: 10.3390/molecules27154943] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 11/17/2022] Open
Abstract
Inappropriate and disproportionate antibiotic use contributes immensely to the development of antibiotic resistance in bacterial species associated with food contamination. Therefore, alternative strategies to treat multidrug-resistant (MDR) bacterial infections are urgently needed. In this study, verbascoside was shown to exhibit excellent antibacterial activity and synergistic effects in combination with cell wall synthesis-inhibiting antibiotics, indicating that it can be used as an adjuvant to restore or increase the activity of antibiotics against resistant pathogens. In a mechanistic study, higher concentrations of verbascoside resulted in a longer lag phase and a lower specific exponential-phase growth rate of bacteria. Furthermore, verbascoside exerted its antimicrobial activity through multiple mechanisms, including cell membrane dysfunction, biofilm eradication and changes in cell morphology. The promising antibacterial activity and in vitro safety assessment results suggested that verbascoside can be used as a food additive for fresh meat preservation. Treatment with medium and high doses of verbascoside caused significant bacterial death in meat samples, slowed the spoilage rate, and extended the shelf life. Collectively, verbascoside is expected to be useful as an antibiotic adjuvant to prevent or treat resistant bacteria-related infections and an alternative novel antimicrobial additive in the food industry.
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36
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Antibacterial mechanism of beetroot (Beta vulgaris) extract against Listeria monocytogenes through apoptosis-like death and its application in cooked pork. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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37
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Li L, Zhou P, Wang Y, Pan Y, Chen M, Tian Y, Zhou H, Yang B, Meng H, Zheng J. Antimicrobial activity of cyanidin-3-O-glucoside-lauric acid ester against Staphylococcus aureus and Escherichia coli. Food Chem 2022; 383:132410. [PMID: 35182879 DOI: 10.1016/j.foodchem.2022.132410] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/16/2022] [Accepted: 02/07/2022] [Indexed: 11/18/2022]
Abstract
Enzymatic acylation of anthocyanin with fatty acid improves its lipophilic solubility and application potential. Nevertheless, evaluation of functional properties of product is premise for application. This study investigated the antimicrobial potential and the underlying mechanisms of an acylated anthocyanin, namely, cyanidin-3-O-glucoside-lauric acid ester (C3G-LA), to provide guidelines for its application. C3G-LA exhibited outstanding antibacterial activity against Staphylococcus aureus [minimum inhibitory concentration (MIC) = 0.3125 mg/mL] and modest activity against Escherichia coli (MIC = 5 mg/mL). Moreover, C3G-LA manifested bactericide ability against S. aureus at 0.625 mg/mL. Decreases in membrane integrity (by 96% and 92% at MIC in S. aureus and E. coli, respectively), intracellular ATP concentration (by 96% and 92%) and intracellular pH (by 11% and 9%) and changes in cellular morphology altogether indicated the dysfunction of cell membrane under C3G-LA treatment. These findings demonstrated that C3G-LA could be adopted as an alternative food preservative against foodborne pathogens.
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Affiliation(s)
- Lili Li
- Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, Guangdong, China
| | - Ping Zhou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China; InnoStar Bio-Tech Nantong Site, Nantong 226133, Jiangsu, China
| | - Yidi Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Ying Pan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
| | - Min Chen
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Ye Tian
- Food Chemistry and Food Development Unit, Department of Life Technologies, University of Turku, Turku FI-20014, Finland
| | - Hua Zhou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Baoru Yang
- Food Chemistry and Food Development Unit, Department of Life Technologies, University of Turku, Turku FI-20014, Finland
| | - Hecheng Meng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Jie Zheng
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China; Zhongshan Hongli Health Food Industry Research Institute Co., Ltd, Zhongshan 528400, Guangdong, China.
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38
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Development of Synergy-Based Combination of Methanolic Extract of Andrographis paniculata and Berberis aristata Against E. coli and S. aureus. Curr Microbiol 2022; 79:223. [PMID: 35704102 DOI: 10.1007/s00284-022-02911-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 05/19/2022] [Indexed: 11/03/2022]
Abstract
This study evaluates the antibacterial activity and phytochemical characterizations of Andrographis paniculata extract (APE) and Berberis aristata extract (BAE). The stem of Andrographis paniculata (AP) and root of Berberis aristata (BA) were extracted with methanol. The results confirmed that APE and BAE possess high phenolic and flavonoid content. The antioxidant activity of the APE and BAE showed an elevated potential to scavenge DPPH (2,2-diphenyl-1-picrylhydrazyl) radicals with IC50 of 95.03 μg/mL and 256.26 μg/mL, respectively. A total of 35 and 32 metabolites in APE and BAE, respectively, were identified through mass spectrometry analysis, whereas 17 and 12 metabolites in APE and BAE, respectively, were detected through high-performance thin-layer chromatography (HPTLC) fingerprinting profiling. Antibacterial activity of the extracts was performed by the well diffusion and microdilution method, and the findings showed that APE and BAE had antibacterial activities against E. coli and S. aureus. The growth curve and time-kill study showed that the extracts had a bacteriostatic effect. A combination study with the standard drug was carried out using the microdilution checkerboard method in which most of the combinations showed synergistic interactions. The findings of this study have shown that APE and BAE are good sources of antibacterial compounds and can be used for treating infectious diseases caused by E. coli and S. aureus.
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Somade OT, Adeyi OE, Ajayi BO, Asunde OO, Iloh PD, Adesanya AA, Babalola OI, Folorunsho OT, Olakunle DA, Lawal OF. Syringic and ascorbic acids prevent NDMA-induced pulmonary fibrogenesis, inflammation, apoptosis, and oxidative stress through the regulation of PI3K-Akt/PKB-mTOR-PTEN signaling pathway. Metabol Open 2022; 14:100179. [PMID: 35340717 PMCID: PMC8943260 DOI: 10.1016/j.metop.2022.100179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/12/2022] [Accepted: 03/13/2022] [Indexed: 12/18/2022] Open
Abstract
Idiopathic lung fibrosis (ILF) is a severe and life threatening lung disorder that is characterized by scarring of lung tissue, leading to thickening and stiffening of affected areas. This study looked at the role played by PI3K-Akt/PKB-mToR signaling pathway in the pathogenesis of N-Nitrosodimethylamine (NDMA)-induced lung fibrotic injury, and the effects of syringic acid (SYR) and ascorbic acid (ASC) treatments in male Wistar rats. Pulmonary fibrosis was induced by intraperitoneal injection of 10 mg/kg NDMA once daily, thrice (consecutively) a week for four weeks, and this condition was treated daily with SYR (50 mg/kg) and ASC (100 mg/kg) acids orally for four weeks. Fibrogenesis, following NDMA administration was marked by a significant increase in collagen-1 and α-SMA levels, while oxidative stress was marked by a significant decrease in GSH level, GST, GPx, CAT, and SOD activities. Also, NDMA significantly increased lung Bax, p53, caspase-3, TNF-α, IL-1β, NFkB, and decreased Bcl-2, mdm2, cyclin D1 and Nrf-2 levels. Looking at the PI3K-Akt-mTOR signaling pathway, NDMA administration significantly activated lung PI3K, Akt, and mTOR, and deactivated PTEN, FoxO1 and TSC2. Treatments with SYR and ASC significantly reduced oxidative stress by restoring the antioxidant systems via Nrf2 activation, decreased the levels of inflammatory markers through inhibition of NFkB, downregulated p53, Bax, and caspase-3 via up-regulation of mdm2 and cyclin D1. SYR and ASC also regulated the PI3K-Akt-mTOR signaling pathway via the deactivation of PI3K, Akt, and mTOR, and up-regulation of PTEN, FoxO1 and TSC2. Overall, SYR and ASC modulate the PI3K-Akt-mTOR signaling pathway via inhibition of oxidative stress, inflammation and apoptosis in NDMA-induced lung fibrosis.
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Affiliation(s)
- Oluwatobi T. Somade
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
- Corresponding author.
| | - Olubisi E. Adeyi
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Babajide O. Ajayi
- Department of Chemical Sciences, Faculty of Natural Sciences, Ajayi Crowther University, Oyo, Nigeria
| | - Osiro O. Asunde
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Precious D. Iloh
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Adedayo A. Adesanya
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Olanrewaju I. Babalola
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Oluwaseyi T. Folorunsho
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Deborah A. Olakunle
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
| | - Opeyemi F. Lawal
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
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Lu P, Ji X, Xue J, Dong Y, Chen X. Proteomic Analysis Revealed Metabolic Inhibition and Elongation Factor Tu Deamidation by p-Coumaric Acid in Cronobacter sakazakii. Front Microbiol 2022; 13:888103. [PMID: 35615519 PMCID: PMC9125189 DOI: 10.3389/fmicb.2022.888103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/29/2022] [Indexed: 11/16/2022] Open
Abstract
Screening drugs and compounds to fight against Cronobacter sakazakii (C. sakazakii), one of the most common pathogens that can cause fatal necrotizing enterocolitis, septicema and meningitis, is still needed. We found that p-coumaric acid (pCA) has an inhibitory effect on C. sakazakii in vitro and in vivo. Proteomic changes of C. sakazakii BAA-894 exposed to pCA were studied to reveal the antibacterial mechanisms involved. A total of 1,553 proteins were identified in C. sakazakii BAA-894 by label-free proteomics analysis. Fuzzy cluster analysis showed that 33 were up-regulated, and 110 were down-regulated with pCA treatment. Gene Ontology (GO) analysis concluded that pCA caused the change of metabolic state of bacteria and generally in the state of metabolic inhibition. KEGG Enrichment Analysis (KEGG) analysis showed that pCA inhibited energy metabolism and distorted the balance of amino acid metabolism. Posttranslational modification analysis showed that pCA affected the deamidation of three proteins, including Elongation factor Tu, one of the vital proteins in bacteria. Molecular docking suggested the hydrogen bond between the pCA carboxyl group and Elongation factor Tu Asn-64 might contribute to deamidation. Overall, we found that pCA interfered with cellular energy and amino acid metabolism and promoted elongation factor Tu deamidation, suggesting that pCA can be an effective natural substitute to control C. sakazakii.
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Affiliation(s)
- Ping Lu
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
- Nankai University Affiliated Eye Hospital, Nankai University, Tianjin, China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
| | - Xuemeng Ji
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Juan Xue
- Institute of Infection and Immunity, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yinping Dong
- Institute of Radiation Medicine, Chinese Academy of Medical Science, Peking Union Medical College, Tianjin, China
| | - Xi Chen
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, China
- Nankai University Affiliated Eye Hospital, Nankai University, Tianjin, China
- Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, China
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin, China
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Evaluation of gallic acid on membrane damage of Yersinia enterocolitica and its application as a food preservative in pork. Int J Food Microbiol 2022; 374:109720. [DOI: 10.1016/j.ijfoodmicro.2022.109720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 11/22/2022]
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Xing M, Yao J, Guo Y, Xin R, Yu Y, Shi E, Hao M, Fei P, Kang H, Chen J. Antibacterial Effect of Chrysanthemum Buds' Crude Extract Against Salmonella Typhimurium and Potential Application in Cooked Chicken. Foodborne Pathog Dis 2022; 19:297-303. [PMID: 35363059 DOI: 10.1089/fpd.2021.0104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this study was to clarify the antibacterial activity and mechanism of Chrysanthemum buds' crude extract (CBCE) against Salmonella Typhimurium, and explore the potential application in cooked chicken. The zone of inhibition (ZI), minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) were used to assess the in vitro antibacterial activity of CBCE against Salmonella Typhimurium. The antibacterial mechanism was elucidated by revealing the changes in intracellular adenosine 5'-triphosphate (ATP) concentration, membrane potential, content of biomacromolecule, and cell morphology. Furthermore, the effect of CBCE on the counts of Salmonella Typhimurium and color of cooked chicken during storage was studied. The results showed that the ZI, MIC, and MBC of CBCE against Salmonella Typhimurium were 12.9 ± 0.53-13.6 ± 0.14 mm, 40, and 80 mg/mL, respectively. In the process of inhibiting Salmonella Typhimurium by CBCE, the reduction of intracellular ATP concentration, cell membrane depolarization, leakage of protein and nucleic acid, and destruction of cell morphology were observed. Moreover, after treatments with CBCE, the growth of Salmonella Typhimurium in cooked chicken was significantly inhibited (p < 0.05) compared with the control group. No significant differences (p > 0.05) in lightness (L*), redness (a*), and yellowness (b*) values of cooked chicken were found between untreated and treated samples, as well as the color of cooked chicken treated with CBCE did not change significantly (p > 0.05) during the six days of storage. Overall, our findings suggested that CBCE exhibited the antibacterial effect against Salmonella Typhimurium, and had the potential to be used as a natural food preservative for the control of Salmonella Typhimurium in chicken products.
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Affiliation(s)
- Min Xing
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Jiyun Yao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Yiming Guo
- School of Public Health, University of Washington, Seattle, Washington, USA
| | - Ru Xin
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Yaping Yu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Encong Shi
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin, China
| | - Mengdi Hao
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Peng Fei
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Huaibin Kang
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
| | - Junliang Chen
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, China
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Diana R, Caruso U, Di Costanzo L, Concilio S, Piotto S, Sessa L, Panunzi B. A Water Soluble 2-Phenyl-5-(pyridin-3-yl)-1,3,4-oxadiazole Based Probe: Antimicrobial Activity and Colorimetric/Fluorescence pH Response. Molecules 2022; 27:molecules27061824. [PMID: 35335188 PMCID: PMC8952330 DOI: 10.3390/molecules27061824] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/03/2022] [Accepted: 03/09/2022] [Indexed: 12/11/2022] Open
Abstract
The growing demand of responsive tools for biological and biomedical applications pushes towards new low-cost probes easy to synthesize and versatile. Current optical probes are theranostic tools simultaneously responsive to biological parameters/analyte and therapeutically operating. Among the optical methods for pH monitoring, simple small organic molecules including multifunctional probes for simultaneous biological activity being highly desired by scientists and technicians. Here, we present a novel pH-responsive probe with a three-ring heteroaromatic pattern and a flexible cationic chain. The novel molecule shows real-time naked-eye colorimetric and fluorescence response in the slightly acidic pH range besides its excellent solubility both in the organic phase and in water. In addition, the small probe shows significant antibacterial activity, particularly against Escherichia coli. Single-crystal X-ray study and density functional theory (DFT) calculations rationalize the molecule spectroscopic response. Finally, molecular dynamics (MD) elucidate the interactions between the probe and a model cell membrane.
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Affiliation(s)
- Rosita Diana
- Department of Agriculture, University of Naples Federico II, Via Università, 100, 80055 Portici, Italy; (R.D.); (L.D.C.); (B.P.)
| | - Ugo Caruso
- Department of Chemical Sciences, University of Naples Federico II, Strada Comunale Cinthia, 26, 80126 Napoli, Italy
- Correspondence:
| | - Luigi Di Costanzo
- Department of Agriculture, University of Naples Federico II, Via Università, 100, 80055 Portici, Italy; (R.D.); (L.D.C.); (B.P.)
| | - Simona Concilio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (S.C.); (S.P.); (L.S.)
| | - Stefano Piotto
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (S.C.); (S.P.); (L.S.)
| | - Lucia Sessa
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy; (S.C.); (S.P.); (L.S.)
| | - Barbara Panunzi
- Department of Agriculture, University of Naples Federico II, Via Università, 100, 80055 Portici, Italy; (R.D.); (L.D.C.); (B.P.)
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Luo K, Zhao P, He Y, Kang S, Shen C, Wang S, Guo M, Wang L, Shi C. Antibacterial Effect of Oregano Essential Oil against Vibrio vulnificus and Its Mechanism. Foods 2022; 11:foods11030403. [PMID: 35159553 PMCID: PMC8834123 DOI: 10.3390/foods11030403] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/17/2022] [Accepted: 01/23/2022] [Indexed: 02/06/2023] Open
Abstract
Oregano essential oil (OEO) is an effective natural antibacterial agent, but its antibacterial activity against Vibrio vulnificus has not been widely studied. The aim of this study was to investigate the inhibitory effect and germicidal activity of OEO on V. vulnificus and its possible inhibition mechanism. The minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) of OEO against four V. vulnificus strains (ATCC 27562 and three isolates from seafoods) were from 0.06 to 0.15 μL/mL. Compared with untreated bacteria, OEO reduced the concentration of intracellular adenosine triphosphate (ATP), hyperpolarized the cell membrane, increased the level of reactive oxygen species (ROS), and increased the concentration of intracellular malondialdehyde (MDA), but there was no obvious DNA damage at the OEO test concentration. It was indicated that OEO inactivated V. vulnificus by generating ROS which caused lipid peroxidation of cell membranes, thereby reducing the permeability and integrity of cell membranes and causing morphological changes to cells, but there was no obvious damage to DNA. In addition, OEO could effectively kill V. vulnificus in oysters at 25 °C, and the number of bacteria decreased by 48.2% after 0.09% OEO treatment for 10 h. The good inhibitory effect and bactericidal activity of OEO showed in this study, and the economy and security of OEO make it possible to apply OEO to control V. vulnificus contamination in oysters and other seafoods.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Chao Shi
- Correspondence: ; Tel.: +86-29-87092486; Fax: +86-29-87091391
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Zhang Y, Wei J, Guo H, Niu C, Yuan Y, Yue T. Phenotypic and Transcriptomic Analyses Reveal the Cell Membrane Damage of Pseudomonas fragi Induced by Cinnamic Acid. Front Microbiol 2022; 12:796754. [PMID: 35058913 PMCID: PMC8764163 DOI: 10.3389/fmicb.2021.796754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 12/03/2021] [Indexed: 11/13/2022] Open
Abstract
Cinnamic acid (CA) is a safe and effective antimicrobial agent. The objective of this study was to reveal the antibacterial mechanism of CA against a food-derived Pseudomonas fragi 38-8, from the aspects of bacterial growth kinetics, cell membrane homeostasis, cell microstructure, and transcription. The minimum inhibitory concentration (MIC) of CA against P. fragi 38-8 was 0.25 mg/ml. CA retarded bacterial growth and induced a series of cell membrane changes. After CA treatment, cell membrane homeostasis was destroyed, which was evidenced by cell membrane depolarization, intracellular pH reduction, and intracellular ATPase activity decrease. Field emission scanning electron microscope (FESEM), transmission electron microscope (TEM), and confocal laser scanning fluorescence microscope (CLSM) realized the visualization of cell microstructure changes, showing cell death and morphological changes, such as cell rupture, shrinkage, and hollowness. RNA sequencing analysis further confirmed the effects of CA to the cell membrane, because of the significant enrichment of differentially expressed genes (DEGs) related to membrane. The results of the phenotype tests and RNA-seq both focused on cell membrane damage, which showed that CA exerted antibacterial effect mainly by acting on cell membrane.
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Affiliation(s)
- Yuxiang Zhang
- College of Food Science and Technology, Northwest University, Xi'an, China.,College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Jianping Wei
- College of Food Science and Technology, Northwest University, Xi'an, China
| | - Hong Guo
- College of Food Science and Technology, Northwest University, Xi'an, China
| | - Chen Niu
- College of Food Science and Technology, Northwest University, Xi'an, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Tianli Yue
- College of Food Science and Technology, Northwest University, Xi'an, China.,College of Food Science and Engineering, Northwest A&F University, Yangling, China
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Evaluation of the membrane damage mechanism of thymol against Bacillus cereus and its application in the preservation of skim milk. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108435] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Mierzejewska E, Urbaniak M, Zagibajło K, Vangronsveld J, Thijs S. The Effect of Syringic Acid and Phenoxy Herbicide 4-chloro-2-methylphenoxyacetic acid (MCPA) on Soil, Rhizosphere, and Plant Endosphere Microbiome. FRONTIERS IN PLANT SCIENCE 2022; 13:882228. [PMID: 35712561 PMCID: PMC9195007 DOI: 10.3389/fpls.2022.882228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 05/02/2022] [Indexed: 05/07/2023]
Abstract
The integration of phytoremediation and biostimulation can improve pollutant removal from the environment. Plant secondary metabolites (PSMs), which are structurally related to xenobiotics, can stimulate the presence of microbial community members, exhibiting specialized functions toward detoxifying, and thus mitigating soil toxicity. In this study, we evaluated the effects of enrichment of 4-chloro-2-methylphenoxyacetic acid (MCPA) contaminated soil (unplanted and zucchini-planted) with syringic acid (SA) on the bacterial community structure in soil, the rhizosphere, and zucchini endosphere. Additionally, we measured the concentration of MCPA in soil and fresh biomass of zucchini. The diversity of bacterial communities differed significantly between the studied compartments (i.e., unplanted soil, rhizospheric soil, and plant endosphere: roots or leaves) and between used treatments (MCPA or/and SA application). The highest diversity indices were observed for unplanted soil and rhizosphere. Although the lowest diversity was observed among leaf endophytes, this community was significantly affected by MCPA or SA: the compounds applied separately favored the growth of Actinobacteria (especially Pseudarthrobacter), while their simultaneous addition promoted the growth of Firmicutes (especially Psychrobacillus). The application of MCPA + SA together lead also to enhanced growth of Pseudomonas, Burkholderia, Sphingomonas, and Pandoraea in the rhizosphere, while SA increased the occurrence of Pseudomonas in leaves. In addition, SA appeared to have a positive influence on the degradative potential of the bacterial communities against MCPA: its addition, followed by zucchini planting, significantly increased the removal of the herbicide (50%) from the soil without affecting, neither positively nor negatively, the plant growth.
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Affiliation(s)
- Elżbieta Mierzejewska
- UNESCO Chair on Ecohydrology and Applied Ecology, Faculty of Biology and Environmental Protection, University of Łódź, Łódź, Poland
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
- *Correspondence: Elżbieta Mierzejewska,
| | - Magdalena Urbaniak
- UNESCO Chair on Ecohydrology and Applied Ecology, Faculty of Biology and Environmental Protection, University of Łódź, Łódź, Poland
| | - Katarzyna Zagibajło
- Food Safety Laboratory, Research Institute of Horticulture, Skierniewice, Poland
| | - Jaco Vangronsveld
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
- Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, Lublin, Poland
| | - Sofie Thijs
- Environmental Biology, Centre for Environmental Sciences, Hasselt University, Hasselt, Belgium
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Shi D, Shi H. The synergistic antibacterial effect and inhibition of biofilm formation of nisin in combination with terpenes against Listeria monocytogenes. Lett Appl Microbiol 2021; 75:632-642. [PMID: 34953143 DOI: 10.1111/lam.13636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/16/2021] [Accepted: 12/15/2021] [Indexed: 11/29/2022]
Abstract
This study was to investigate the synergistic antibacterial effect and inhibition of biofilm formation of nisin in combination with terpenes (carvacrol, cinnamaldehyde, citral, and thymol) against Listeria monocytogenes. The bactericidal ranking of terpenes combined with nisin was carvacrol > cinnamaldehyde, citral > thymol. The minimum inhibitory concentration assay (MIC) of nisin and carvacrol when used together were determined to be 0.1563 mg/ml + 0.0195 mg/ml (nisin at MIC/2 + carvacrol at MIC/16). The addition of nisin at MIC/2 + carvacrol at MIC/2 caused more decrease in membrane potential than carvacrol or nisin at MIC individually. The decrease rates of hlyA and plcA gene expressions caused by nisin at MIC/2 + carvacrol at MIC/2 were significantly higher than those caused by carvacrol or nisin at MIC individually (P < 0.05). Nisin combined with carvacrol showed the highest inhibition activity to formation of L. monocytogenes biofilm on stainless steel and lettuce. The inhibition effect of nisin at MIC/2 + carvacrol at MIC/16 was significantly higher than that of nisin at MIC/2 and carvacrol at MIC/16 (P < 0.05).
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Affiliation(s)
- Dongling Shi
- College of Food Science, Southwest University, Chongqing, China, 400715
| | - Hui Shi
- College of Food Science, Southwest University, Chongqing, China, 400715
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Ferah Okkay I, Okkay U, Gundogdu OL, Bayram C, Mendil AS, Ertugrul MS, Hacimuftuoglu A. Syringic acid protects against thioacetamide-induced hepatic encephalopathy: Behavioral, biochemical, and molecular evidence. Neurosci Lett 2021; 769:136385. [PMID: 34871743 DOI: 10.1016/j.neulet.2021.136385] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022]
Abstract
The objective of this study was to elucidate the effects of syringic acid on thioacetamide-induced hepatic encephalopathy which is a complex serious syndrome with neuropsychiatric abnormalities related to acute liver dysfunctions like cirrhosis. Rats were treated with syringic acid (50 and 100 mg/kg, p.o.) for 14 days in treatment groups. Hepatic encephalopathy was induced by three doses of (200 mg/kg i.p.) thioacetamide injection. Syringic acid effectively alleviated thioacetamide-induced hepatic injury via reduction in ammonia, AST, ALT, ALP, LDH and decrease in oxidative stress (decreased MDA, ROS and increased SOD and GSH). Syringic acid also attenuated inflammatory injury by suppressing TNF-α, IL-1β, and NF-κB and increasing IL-10. The caspase-3 expression was also down-regulated in both liver and brain tissues. Immunohistochemical results confirmed the recovery with syringic acid by downregulation of iNOS, 8-OHdG and GFAP expression. Syringic acid decreased the deteriorating effects of thioacetamide as seen by reduced ammonia concentration and also preserved astrocyte and hepatocyte structure. The behavioral test results from elevated plus maze test, similar to the open-field locomotor test results, confirmed that syringic acid can reverse behavioral impairments. In conclusion, syringic acid exerted hepatoprotective and neuroprotective effects against hepatic encephalopathy by mitigating hepatotoxicity biomarkers, exerting antioxidant, anti-inflammatory effects in addition to suppressing hyperammonemia.
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Affiliation(s)
- Irmak Ferah Okkay
- Department of Pharmacology, Faculty of Pharmacy, Ataturk University, Turkey.
| | - Ufuk Okkay
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Turkey
| | - Omer Lutfi Gundogdu
- Department of Neurology, Faculty of Medicine, Recep Tayyip Erdogan University, Turkey
| | - Cemil Bayram
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Turkey
| | - Ali Sefa Mendil
- Department of Pathology, Faculty of Veterinary Medicine, Erciyes University, Kayseri, Turkey
| | | | - Ahmet Hacimuftuoglu
- Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Turkey
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Hao Y, Li J, Shi L. A Carvacrol-Rich Essential Oil Extracted From Oregano ( Origanum vulgare "Hot & Spicy") Exerts Potent Antibacterial Effects Against Staphylococcus aureus. Front Microbiol 2021; 12:741861. [PMID: 34803958 PMCID: PMC8602913 DOI: 10.3389/fmicb.2021.741861] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/12/2021] [Indexed: 01/16/2023] Open
Abstract
Oregano essential oil (OEO), as a natural antimicrobial, has gained increased interest from food researchers and manufacturers. However, a few studies have investigated its possible antibacterial effects against Staphylococcus aureus using the proteomic tool. The present study aimed to explore the antibacterial effect and mechanism of a carvacrol-rich OEO extracted from Origanum vulgare “Hot & Spicy” on the inactivation of S. aureus. The gas chromatography–mass spectrometry analysis of the OEO allowed the detection of 27 compounds; the major constituent was carvacrol (84.38% of total compounds). The average diameter of the inhibitory zone (DIZ) value was 29.10 mm, and the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of OEO against S. aureus were 0.125 and 0.25 mg/mL, respectively. The growth curve assay indicated that the OEO prolonged the lag phase of S. aureus. The decrease in cell viability, changes in the integrity of cell membrane, and abnormal cell morphology further reflected the cell damage of S. aureus caused by the OEO. In addition, a label-free proteomic analysis was applied to analyze the regulatory networks of S. aureus in response to 1/2 MIC OEO-treatment stress. Of the 56 differentially expressed proteins (DEPs) identified, 26 were significantly upregulated and 30 downregulated. The Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis indicated that the DEPs were mainly involved in pathways of ribosomes; valine, leucine, and isoleucine biosynthesis; and phenylalanine, tyrosine, and tryptophan biosynthesis, which suggested that the growth inhibition of S. aureus might be due to the disordered effect of the OEO on protein synthesis and amino acid metabolism. These findings deepened our understanding regarding S. aureus survival and metabolism responses to the OEO treatment and suggested that the carvacrol-rich OEO could be used in food production environments to effectively control S. aureus.
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Affiliation(s)
- Yuanpeng Hao
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jingyi Li
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China
| | - Lei Shi
- Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing, China
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