In vitro antibacterial activity of plant extracts and phytochemicals in comparison with antibiotic growth promoters against intestinal pathogens of farm animals

2021 ◽  
Author(s):  
D L Jain ◽  
T Kudera ◽  
L Kokoška
Keyword(s):  
Antibacterial Activity ◽  
Plant Extracts ◽  
Farm Animals ◽  
Growth Promoters ◽  
Intestinal Pathogens ◽  
In Vitro Antibacterial Activity ◽  
Antibiotic Growth Promoters

scholarly journals In vitro antibacterial activity of two plant extracts against Enterococcus faecalis

2015 ◽  
Vol 9 (14) ◽  
pp. 1020-1025
Author(s):  
A C Duailibe Silvana ◽  
R Macedo Cost Maria ◽  
Lima Kenio ◽  
Uzeda Milton
Keyword(s):  
Antibacterial Activity ◽  
Enterococcus Faecalis ◽  
Plant Extracts ◽  
In Vitro Antibacterial Activity

In vitro antibacterial activity of some Iranian medicinal plant extracts against Helicobacter pylori

2011 ◽  
Vol 25 (11) ◽  
pp. 1059-1066 ◽  
Author(s):  
M. Hajimahmoodi ◽  
M. Shams-Ardakani ◽  
P. Saniee ◽  
F. Siavoshi ◽  
M. Mehrabani ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Antibacterial Activity ◽  
Medicinal Plant ◽  
Plant Extracts ◽  
Medicinal Plant Extracts ◽  
In Vitro Antibacterial Activity

scholarly journals In vitro antibacterial activity of several plant extracts against fish bacterial pathogens

2021 ◽  
Vol 13 (Aquaculture) ◽  
pp. 106-112
Author(s):  
Thi My Duyen Tran ◽  
Trong Tuan Nguyen ◽  
Thi Tuyet Hoa Tran
Keyword(s):  
Antibacterial Activity ◽  
Plant Extracts ◽  
Broad Spectrum ◽  
Alternative Therapy ◽  
Diffusion Method ◽  
Dilution Method ◽  
Fish Pathogens ◽  
Agar Disc ◽  
In Vitro Antibacterial Activity

Crude methanol extract of 9 Vietnamese plants were in vitro screened for their antibacterial activity against three common freshwater fish pathogens including Aeromonas hydrophila, Edwardsiella ictaluri, and Streptococcus agalactiae. Agar disc diffusion method was used to evaluate the antibacterial activity, then solvent extract was performed for the extracts which exhibited the strongest and a broad-spectrum antibacterial activity. Minimal inhibitory concentration (MIC) was conducted for effective plant extracts using broth dilution method. The results indicated that most of the plant extracts exhibited antibacterial propeties to at least one tested bacterium. Headache tree (Premna corymbosa), bushwillows (Combretum quadrangulare) and Celandine spider flower (Cleome chelidonii) showed a broad-spectrum antibacterial activity. The largest inhibitory zones of 35 mm and 21 mm were observed  for the extract of Premna corymbosa against E. ictaluri and S. agalactiae, respectively. E. ictaluri was found to be the most susceptible for all of the extracts while A. hydrophila was the most resistant. The MIC of effective plant extracts against tested bacteria ranged between 0.39 mg/mL and 3.125 mg/mL. The result can be considered for further investigation of the development of an alternative therapy against bacterial infection in aquaculture.

Elaboration and Evaluation of Membranes from Biopolymers as Delivery System of Plant Extracts

2010 ◽  
Vol 1277 ◽  
Author(s):  
Rodríguez-García A ◽  
Luis J. Galán-Wong L.J. ◽  
Arévalo-Niño K.
Keyword(s):  
Antibacterial Activity ◽  
Side Effects ◽  
Delivery System ◽  
Plant Extracts ◽  
Tooth Loss ◽  
Oral Microbiota ◽  
Natural Sources ◽  
Adhesion Ability ◽  
In Vitro Antibacterial Activity

Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans are considered key pathogens in periodontitis that is the principal cause of tooth loss in adults. The treatment of periodontal disease consists on the use of chemicals which can alter oral microbiota and have undesirable side-effects such as vomiting, diarrhea and tooth stainingAt recent years, the use of natural sources like biomaterials such as biopolymers and plant extracts are enjoying great popularity. Chitosan and pullulan are polymers that have been proposed due to their favorable properties such as biocompatibility, biodegradability, adhesion ability and nontoxicityThe aim of this study was to develop films from chitosan and pullulan containing plant extracts as delivery system and determine the in vitro antibacterial activity against periodontopathogen microorganisms and their stability under different conditions of storage

scholarly journals Optimization of technological parameters for osmotic dehydration of black chokeberry

2018 ◽  
Vol 1 (2) ◽  
pp. 108
Author(s):  
Svetoslav Stoyanov Aleksandrov ◽  
Todorka Petrova ◽  
Ivan Bakalov ◽  
Milena Ruskova ◽  
Emilian Popesku ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Plant Extracts ◽  
Milk Fat ◽  
Red Wine ◽  
Listeria Innocua ◽  
Beef Meat ◽  
Whole Milk ◽  
In Vitro Antibacterial Activity

Many plant extracts selected for their high in vitro antibacterial activity in microbiological media have a far lower in situ antibacterial activity in foods. This is likely due to interactions of plant antimicrobial molecules with food components such as proteins or dispersed fat at the expense of their interaction with target unwanted bacteria. Gaillac red wine powder and Cinnamon cassia essential oil were selected for their in vitro antibacterial activity against Staphylococcus aureus CNRZ3 and Listeria innocua LRGIA 01, respectively. In order to assess their potential application to the preservation of raw meat or dairy products, respectively, their antibacterial activity was tested in Mueller Hinton broth (MHB) supplemented with up to 20% beef meat proteins to mimick raw beef meat protein content and in TSB, skimmed, semi-skimmed and whole milk, respectively. Supplementation of MHB with beef extract proteins annihilated the antibacterial activity of Gaillac red wine powder as well as of resveratrol, a stilbene polyphenol present in red wine. The comparison of the anti-Listeria innocua activity of C. cassia essential oil in TSB 1% (w/w), skimmed, semi-skimmed and whole milk led to the conclusion that its antibacterial activity was significantly reduced in the presence of milk fat globules but not significantly by milk proteins. Complexified microbiological media or liquid foods such as sterilized milk with various milk fat contents might thus be valuable tools for the rapid screening of antibacterial plant extracts of interest for perishable foods preservation.

scholarly journals Use of Plant Extracts as an Effective Manner to ControlClostridium perfringensInduced Necrotic Enteritis in Poultry

2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
J. M. Diaz Carrasco ◽  
L. M. Redondo ◽  
E. A. Redondo ◽  
J. E. Dominguez ◽  
A. P. Chacana ◽  
...  
Keyword(s):  
Plant Extracts ◽  
Feed Additives ◽  
Economic Losses ◽  
Human Consumption ◽  
Necrotic Enteritis ◽  
Poultry Industry ◽  
Growth Promoters ◽  
Effective Manner ◽  
Intestinal Pathogens

Necrotic enteritis (NE) is an important concern in poultry industry since it causes economic losses, increased mortality, reduction of bird welfare, and contamination of chicken products for human consumption. For decades, the use of in-feed antimicrobial growth promoters (AGPs) has been the main strategy to control intestinal pathogens includingClostridium perfringens(CP), the causative agent of NE. However, the use of AGPs in animal diet has been linked to the emergence and transmission of antimicrobial resistance through food-borne microorganisms, which has led to the ban of AGPs in many countries. This scenario has challenged the poultry industry to search for safer alternative products in order to prevent NE. In this context, the utilization of natural plant extracts with antimicrobial properties appears as a promising and feasible tool to control NE in chicken. In this paper, we review the scientific studies analyzing the potential of plant extracts as alternative feed additives to reduce NE in poultry, with focus on two types of plant products that arise as promising candidates: tannins and essential oils. Some of these products showed antimicrobial activity against CP and coccidiain vitroandin vivoand are able to increase productive performance, emulating the bioactive properties of AGPs.

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