Research on Properties of Antibacterial Paper Sprayed by Nano-Chitosan

2014 ◽  
Vol 926-930 ◽  
pp. 214-217
Author(s):  
Ying Hong ◽  
Li Ze Tang
Keyword(s):  
Staphylococcus Aureus ◽  
Tensile Strength ◽  
Antibacterial Effect ◽  
Circle Method ◽  
Inhibitory Effect ◽  
Bursting Strength ◽  
Obvious Change ◽  
And Staphylococcus Aureus ◽  
Better Than

Antibacterial paper for packaging was sprayed by nanochitosan as antibacterial ingredients. The bacteriostatic circle method was adopted to evaluate its antibacterial effect on E.coli and Staphylococcus aureus. We investigated the effects of different concentrations of nanochitosan on antibacterial paper thickness, tensile strength, bursting strength, folding strength and antibacterial properties.The results showed that: tensile strength, bursting strength and folding strength of the antibacterial paper is better than the control paper and the thickness has no obvious change. The antibacterial paper enhanced the antibacterial effect following the increasing concentration of nanochitosan. The same concentration of nanochitosan antibacterial paper, its inhibitory effect on E.coli was greater than that of Staphylococcus aureus.

scholarly journals Inhibitory effect and disinfectant activity of Syzygium aromaticum L. and Ocimum gratissimum L. essential oils against Escherichia coli and Staphylococcus aureus isolated from sheep carcasses

2019 ◽  
Vol 11 ◽  
pp. 1-12
Author(s):  
Larissa de Oliveira ◽  
Sabrina de Souza Sales
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Essential Oils ◽  
Inhibitory Effect ◽  
Syzygium Aromaticum ◽  
Ocimum Gratissimum ◽  
Broth Macrodilution ◽  
And Staphylococcus Aureus ◽  
Suspension Test ◽  
Better Than

Syzygium aromaticum L. and Ocimum gratissimum L. essential oils were tested for their effectiveness in reduction the counts of inoculated Staphylococcus aureus and Escherichia coli in sheepmeat. The inhibitory effect was analysed by disk diffusion and broth macrodilution method with four strains and seven concentrations. Disinfectant activity of the oils was assessed using the suspension test with two strains and two concentrations. The inhibition was observed at concentrations 400, 200 and 100 μL/mL. Syzygium aromaticum L. oil was better than Ocimum gratissimum L. against bacteria isolated from sheep carcasses. The minimum bactericidal concentration of the essential oils aginst inocula ranged from 50 to 200 μL/mL. The suspension test showed that after 5 minutes of contact, Syzygium aromaticum L. disinfectant at 400 μL/mL deactivated the inoculants completely. The results demonstrated that essential oils exerted a significant bactericidal and bacteriostatic action against pathogens.

scholarly journals Perbedaan Daya Hambat Bakteri dari Propolis Cair yang Ada di Pasaran Terhadap Escherichia Coli dan Staphylococcus Aureus Secara In Vitro

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Bangun Azhari Yusuf ◽  
Aziz Djamal ◽  
Asterina Asterina
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Market Research ◽  
Antibacterial Effect ◽  
Diffusion Method ◽  
Breeding Location ◽  
Main Component ◽  
And Staphylococcus Aureus ◽  
Better Than

Abstrak Propolis adalah zat yang digunakan lebah melindungi sarangnya dari berbagai ancaman. Komponen utama propolis adalah resin yang dikumpulkan lebah dan dicampur dengan air liurnya. Manusia juga menggunakan propolis sebagai obat berbagai penyakit, seperti infeksi bakteri. Propolis memiliki kemampuan antibakteri terhadap Escherichiacoli dan Staphylococcus aureus. Kualitas dan jenis propolis sesuai dengan komposisi kimia, iklim dan tempat berkembang biak. Tujuan penelitian ini adalah melihat perbedaan daya hambat bakteri Propolis cair 1 dan Propolis cair 2 yang ada di pasaran terhadap Escherichia coli dan Staphylococcus aureus secara in vitro. Propolis yang akan diuji adalah propolis cair yang ada di pasaran dipilih dua secara acak. Penelitian dilaksanakan pada bulan Januari 2013 di laboratorium Mikrobiologi Fakultas Kedokteran Universitas Andalas. Jenis penelitian eksperimentalmenggunakan metode difusi (metode cakram) dan analitik dengan menghubungkan perbedaan kedua propolis sebagai antibakteri. Hasil penelitian ini menunjukkan propolis cair 1 dan propolis cair 2 yang ada di pasaran tidak memiliki efek antibakteri terhadap Escherichia coli dan terdapat perbedaan daya hambat bakteri dari kedua propolisterhadap Staphylococcus aureus. Propolis cair 2 (diklaim berasal dari Selandia baru) memiliki daya hambat bakteri yang lebih baik daripada propolis cair 1 (diklaim berasal dari Malaysia).Kata kunci: propolis cair, perbedaan daya hambat bakteri, Escherichia coli, Staphylococcus aureusAbstract Propolis is substance which use to protect bee hive from various threat. The main component of propolis is resin which is collected and mixed with saliva. The human also use propolis as a treatment against various illness such as bacterial infection. Propolis has an antibacterial effect to Escherichia coli and Stahpylococcus aureus. The quality and type of propolis is also in accordance with chemical composition, climate and their breeding location. The objective of this study was to find out the differentiation of the antibacterial effect of Propolis 1 and Propolis 2 in the market to Escherichia coli and Staphylococcus aureus by in vitro. Propolis to be tested for this study is random liquid propolis in the market. Research was conducted in January 2013 in the laboratory of Microbiology Faculty of Medicine, University of Andalas. This type of study was the experimental diffusion method (disc method) and the analytic distinction owned by linking two of propolis as an antibacterial effect. These results indicate that propolis 1 and propolis 2 have no ability antibacterial effect to Escherichia coli, and both of propolis have differences antibacterial effect to Staphylococcus aureus. Propolis 2 (from New Zealand claimed) has antibacterial effect better than propolis 1 (from Malaysia claimed).Keywords: propolis, differentiation of the antibacterial effect, Escherichia coli, Staphylococcus aureus

A Study on the Antibacterial Property of the Extract from Apocynum Venetum

2011 ◽  
Vol 332-334 ◽  
pp. 164-167
Author(s):  
Zheng Li ◽  
Zhen Feng Dong ◽  
Jian Fei Zhang ◽  
Ji Xian Gong ◽  
Fan Jie Meng
Keyword(s):  
Escherichia Coli ◽  
Saccharomyces Cerevisiae ◽  
Staphylococcus Aureus ◽  
Aspergillus Niger ◽  
Antibacterial Effect ◽  
Antibacterial Property ◽  
Absolute Ethanol ◽  
Antibacterial Substance ◽  
Apocynum Venetum ◽  
Better Than

In order to determined the antibacterial property of Apocynum venetum. Three kinds of extractants (distilled water, 75% ethanol and absolute ethanol) were used to extract the leaf, stick and skin of Apocynum venetum, respectively. Flask and plate methods were used to evaluate the antibacterial property of these extracts on four kinds of classical microbiologies, Escherichia coli, Staphylococcus aureus, Saccharomyces cerevisiae and Aspergillus niger, respectively. The results showed that the antibacterial rate of extract by 75 % ethanol was better than extracts by water or absolute ethanol on Escherichia coli and skin contained more antibacterial substance (on Escherichia coli) than others. The antibacterial rate of extract by distill water was better than extracts by 75 % ethanol or absolute ethanol on Staphylococcus aureus and stick contained more antibacterial substance (on Staphylococcus aureus) than others. Some of extracts had very weak antibacterial rate on Saccharomyces cerevisiae and all extracts had not antibacterial effect on Aspergillus niger.

Preparation, Characterization and Antibacterial Activity of Chitosan Schiffbases

2011 ◽  
Vol 287-290 ◽  
pp. 1947-1951 ◽  
Author(s):  
Jing Xian Xu ◽  
Ye Ting Lin ◽  
Qiang Lin ◽  
Wen Yuan ◽  
Xue Qiong Yin ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Schiff Bases ◽  
Optical Density ◽  
Elemental Analysis ◽  
Antibacterial Activities ◽  
Cp Mas Nmr ◽  
And Staphylococcus Aureus ◽  
Better Than

Two Schiff bases of chitosan (CTS) were synthesized from 4-methoxylbenzylaldehyde (CH3O-CTS) and 4-methylbenzylaldehyde(CH3-CTS). The Schiff bases were characterized by FTIR, DSC-TGA, solid13C CP-Mas NMR, and elemental analysis. Antibacterial activities of the Schiff bases against Escherichia coli and Staphylococcus aureus were measured by the optical density method. The antibacterial activity of the Schiff bases is better than that of the original CTS. The IC50of CH3O-CTS and CH3-CTS againstEscherichia coliis respectively 40.3 ppm and 43 ppm, which being 38.5 ppm and 39.5 ppm against Staphylococcus aureus, lower than IC50of chitosan, being 59.5 ppm and 52 ppm againstEscherichia coliand Staphylococcus aureus, respectively.

Preparation and Antibacterial Effect of Nanopalygorskite Supported Nano-Silver Powder

2014 ◽  
Vol 1052 ◽  
pp. 327-331 ◽  
Author(s):  
Jian Rong Wang ◽  
Ya Li Liu ◽  
Bin Liu ◽  
Yan Ping Wu
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Room Temperature ◽  
Antibacterial Effect ◽  
Silver Powder ◽  
Nano Silver ◽  
Good Antibacterial Activity ◽  
Novel Method ◽  
And Staphylococcus Aureus

A novel method was used to make palygorskite supported nano-silver powder at room temperature. XRD result showed the presence of silver in the final product. TEM investigation revealed that nano-sliver particles of 6-10 nm in diameter were successfully attached on surface of palygorskite fiber. FTIR was also used to clarify the formation mechanism of our method. The antibacterial effect of palygorskite supported nano-silver powder was investigated. Palygorskite supported nano-silver powder had good antibacterial activity on standard Escherichia coli and Staphylococcus aureus.

scholarly journals Uji efek antibakteri daun mangrove Rhizophora apiculata terhadap bakteri Pseudomonas aeruginosa dan Staphylococcus aureus

2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Vivi P. Santoso ◽  
Jimmy Posangi ◽  
Henoch Awaloei ◽  
Robert Bara
Keyword(s):  
Staphylococcus Aureus ◽  
Pseudomonas Aeruginosa ◽  
Endophytic Fungi ◽  
Bacterial Growth ◽  
Antibacterial Effect ◽  
Experimental Methods ◽  
Rhizophora Apiculata ◽  
Tissue Systems ◽  
Bacterial Growth Inhibition ◽  
And Staphylococcus Aureus

Abstract: Endophytic Fungi are microorganisms that live in the plant tissue systems such as seeds, leaves, flowers, twigs, stems, and roots. Endophytic fungi used in this study was isolated from Mangrove Rhizophora apiculata leaves. R. apiculata is widely grown in coastal areas. This study aimed to determine whether there was an antibacterial effect of endophytic fungi that was isolated from leaves of Rhizophora apiculata against the sample bacteria Pseudomonas aeruginosa and Staphylococcus aureus. This study was conducted in the Pharmacology and Therapeutics Laboratory of Sam Ratulangi University by using experimental methods. The results showed two types of fungi, tusky white endophytic fungi and white filamentous endophytic fungi, isolated from Mangrove Rhizophora apiculata leaves. Both types of fungi showed the presence of bacterial growth inhibition, but the white filamentous endophytic fungi had greater antibacterial effect than the tusky white endophytic fungi.Keywords: endophytic fungi, antibacterial, rhizophora apiculata leavesAbstrak: Jamur endofit merupakan mikroorganisme yang hidup di dalam sistem jaringan tumbuhan seperti biji, daun, bunga, ranting, batang, dan akar. Jamur endofit yang digunakan pada penelitian ini merupakan hasil isolasi dari daun mangrove Rhizophora apiculata. Tanaman mangrove R.apiculata ini banyak tumbuh di kawasan pesisir pantai. Penelitian ini bertujuan untuk mengetahui apakah terdapat efek antibakteri jamur endofit yang diisolasi dari daun Rhizophora apiculata terhadap bakteri uji Pseudomonas aeruginosa dan Staphylococcus aureus. Penelitian ini dilakukan di Laboratorium Farmakologi dan Terapi Universitas Sam Ratulangi Manado dengan menggunakan metode eksperimental. Hasil penelitian ini didapatkan dua jenis jamur yaitu jamur endofit berwarna putih gading dan jamur endofit berwarna putih berserabut yang diisolasi dari daun mangrove Rhizophora apiculata. Kedua jenis jamur menunjukan adanya daya hambat pertumbuhan kedua bakteri uji, namun jamur endofit berwarna putih berserabut memiliki efek antibakteri lebih besar dari pada jamur endofit berwarna putih gading.Kata kunci: jamur endofit, antibakteri, daun rhizophora apiculata

scholarly journals Effect of Different Saudi Honey Types Mixed with Natural Substances on Some Bacterial Strains

2017 ◽  
Vol 24 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Fatimah A. Nashawi ◽  
Hani Y. Abdullah ◽  
Nahlaa A. Khalifa ◽  
Ibrahim A. Alzahrani ◽  
Ahmed A. Al-Ghamdi
Keyword(s):  
Staphylococcus Aureus ◽  
Klebsiella Pneumoniae ◽  
Antibacterial Effect ◽  
Synergistic Effects ◽  
Bacterial Species ◽  
Bacterial Strains ◽  
Natural Substances ◽  
Different Types ◽  
And Staphylococcus Aureus ◽  
Natural Honey

To evaluate the antibacterial eff ects of three types of Saudi honey (Feghra, Sider and Natural honey) alone and mixed with ginger or lemon in comparison to Manuka honey as a potential natural antibacterial agent. Saudi honeys were evaluated against five types of bacterial strains; Klebsiella pneumoniae, Staphylococcus aureus, Pseudomonas aeruginosa, Haemophilus influenzae and Streptococcus pneumoniae. Chocolate agars were prepared first with different concentrations of each type of honey, and then with specific concentrations either of ginger or lemon added to honey. Bacterial species were inoculated on each agar and incubated at 37oC in a CO2 incubator overnight. Significant differences were found between diff erent types of honey and different concentrations of the same honey on bacterial growth. There are no significant differences and synergistic effects when adding ginger to diff erent honey types. Addition of lemon show significant differences and good synergistic effects against all tested bacterial species except Klebsiella pneumoniae and Staphylococcus aureus at 15 and 20% honey concentration. In conclusion, antibacterial effects of different types of honey are type and concentration dependent. Adding lemon to the different types of honey changes the pH and acidity and increases the honey’s antibacterial effect.

scholarly journals Harmless treatment method of dead chickens in scale chicken farm

2021 ◽  
Vol 245 ◽  
pp. 02008
Author(s):  
Chunlin Yu ◽  
Bo Xia ◽  
Mohan Qiu ◽  
Longhuan Du ◽  
Zengrong Zhang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Treatment Method ◽  
Poultry Production ◽  
Calcium Hypochlorite ◽  
Chicken Farm ◽  
Practical Guidance ◽  
And Staphylococcus Aureus ◽  
Total Bacteria ◽  
Better Than

The harmless treatment of dead chickens is an important content in poultry production. This paper compared the effects of the harmless treatment of dead chickens by adding different disinfectants, including quicklime and calcium hypochlorite. The results showed that both quicklime and calcium hypochlorite could increase the total bacteria content, improve the harmless treatment capacity, and shorten the killing time of Escherichia coli and Staphylococcus aureus. The effect of quicklime was better than that of calcium hypochlorite. The experiment provided practical guidance for harmless treatment of scale chicken farm.

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