scholarly journals Aktivitas antimikroba dan antioksidan ekstrak tepung daun dan buah mengkudu (Morinda citrifolia)

2018 ◽  
Vol 28 (2) ◽  
pp. 105 ◽  
Author(s):  
David Kurniawan
Keyword(s):  
Inhibition Zone ◽  
Total Phenol ◽  
Morinda Citrifolia ◽  
Feed Additive ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Fruit Extract ◽  
Medical Plant ◽  
Fruit Powder

Noni fruit is a medical plant with active compound like antimicrobial and antioxidant that could potentially be used as a feed additive in poultry. This study aimed to determine the activity antimicrobial and antioxidant of noni fuit leave and fruit extract. The method was field experiment arranged in Completely Randomize Design with 3 treatments and 3 replications. The treatments are metanol extract of noni fruit powder, leave noni powder and combination noni fruit and leave powder. The inhibition zone diameter was determined by disc diffusion method, total phenol was determined by Folin-Ciocalteu method, Flavonoid was determined by Aluminium clorida method and antioxidant activity by DPPH (1,1-Diphenyl-2picrylhydrazyl) method. The results showed that noni powder ex-tract had significantly effect (P<0.01) in inhibition of Lactic Acid Bacteria and Escherichia coli. The total phenol of Noni fruit powder is highest approximately 1.67 mg/g GAE. The flavonoid of Noni leave is highest approximately 0.0438 mg/g QE. The DPPH test of Noni fruit is highest approximately 84.03%. It can be concluded that noni fruit extract can be used as an antibacterial and antioxidant in poultry.

scholarly journals Efek Antimikroba Ekstrak Air Daun Mengkudu (Morinda citrifolia L.) terhadap Bakteri Shigella dysenteriae Secara In Vitro

2021 ◽  
Vol 3 (1) ◽  
pp. 14-18
Author(s):  
Qyana Al Farisi ◽  
Yuke Andriane ◽  
Miranti Kania Dewi
Keyword(s):  
Water Extract ◽  
Antimicrobial Effect ◽  
Negative Control ◽  
Shigella Dysenteriae ◽  
Morinda Citrifolia ◽  
High Price ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method

Kematian akibat infeksi Shigella, terutama Shigella dysenteriae dapat mencapai lebih dari 10% terutama pada anak dan lanjut usia pada kondisi tanpa pemberian terapi yang efektif. Siprofloksasin merupakan lini pertama untuk pengobatan infeksi Shigella, akan tetapi obat ini memiliki beberapa kekurangan di antaranya harga yang mahal dan resistensi. Daun mengkudu merupakan tanaman tradisional yang diduga memiliki efek antimikro dan diharapkan dapat menjadi alternatif terapi antibiotik bagi Shigella dysenteriae yang saat ini sudah banyak mengalami resistensi. Tujuan penelitian ini adalah mengetahui efek antimikro ekstrak air daun mengkudu (Morinda citrifolia L.) terhadap bakteri Shigella dysenteriae. Penelitian ini bersifat eksperimental laboratorium murni. Zona hambat ditentukan melalui metode difusi cakram. Objek penelitian yang digunakan adalah Shigella dysenteriae ATCC nomor 13313. Sampel uji berupa ekstrak air daun mengkudu konsentrasi 100%, kontrol positif (siprofloksasin) dan kontrol negatif (aquadest) dengan 9 kali pengulangan. Hasil uji antimikro dengan metode difusi cakram menunjukkan tidak terbentuk zona hambat pada ekstrak air daun mengkudu konsentrasi 100%. Hal tersebut menunjukkan ekstrak air daun mengkudu konsentrasi 100% tidak memiliki efek antimikro terhadap bakteri Shigella dysenteriae. Kadar flavonoid, tanin, dan alkaloid yang terdapat dalam ekstrak air daun mengkudu konsentrasi 100% pada penelitian ini kemungkinan belum cukup untuk menghasilkan efek yang diharapkan. Antimicrobial Effect of Water Extract of Noni (Morinda citrifolia L.) Leaves against Shigella dysenteriae In VitroDeath due to infection with Shigella, especially Shigella dysenteriae, can reach more than 10%, especially in children and the elderly in conditions without effective therapy. Ciprofloxacin is the first line for the treatment of Shigella infection, however this drug has several disadvantages including high price and resistance. Noni leaf is a traditional plant that is thought to have antimicrobial effects and is expected to be an alternative antibiotic therapy for Shigella dysenteriae which is currently experiencing a lot of resistance. The purpose of this study was to determine the antimicrobial effect of the water extract of noni leaves (Morinda citrifolia L.) on Shigella dysenteriae bacteria. This research is a pure laboratory experimental study. The zone of inhibition is determined by the disc diffusion method. The research object used was Shigella dysenteriae ATCC number 13313. The test sample was a water extract of noni leaves with a concentration of 100%, positive control (ciprofloxacin) and negative control (aquadest) with 9 repetitions. The results of the antimicrobial test using the disc diffusion method showed no inhibition zone was formed in the water extract of noni leaves with a concentration of 100%. This shows that a water extract of noni leaves with a concentration of 100% did not have an antimicrobial effect against the Shigella dysenteriae bacteria. The levels of flavonoids, tannins, and alkaloids contained in the water extract of noni leaves with a concentration of 100%  in this study may not be sufficient to produce the expected effect.

scholarly journals ISOLASI JAMUR SIMBION ASCIDIA Schizophyllum commune YANG MEMILIKI AKTIVITAS ANTIBAKTERI

2021 ◽  
Vol 9 (1) ◽  
pp. 22
Author(s):  
Gianfranco Montolalu ◽  
Deiske A Sumilat ◽  
Natalie D.C. Rumampuk ◽  
Inneke FM Rumengan ◽  
Rosita AJ Lintang ◽  
...  
Keyword(s):  
Biological Activities ◽  
Schizophyllum Commune ◽  
Inhibition Zone ◽  
Benthic Invertebrate ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Self Defense ◽  
Identification Of Fungi ◽  
Symbiotic Fungi

Ascidian is a benthic invertebrate that produces secondary metabolites. The substances were produced by the ascidian as self-defense from many environmental factors. Several studies report the similar structure between the substances extracted from ascidian and symbiotic fungi with biological activities. This study aims to isolate fungi associated with ascidian Eudistoma sp., then observe its potency on inhibiting bacteria S. aureus dan A. hydrophila. PDA was used to isolate and culture fungal isolate, then extraction using solvent ethyl acetate. Antibacterial activity of this symbiotic fungi isolates extract was performed using the Kirby-Bauer disc diffusion method. Molecular identification of fungi results that the symbiotic fungi were Schizophyllum commune. The observing result showed that fungal extract has the ability on inhibiting the growth of S. aureus and with the inhibition zone 8 mm and A. hydrophila 8,5 mm.Keywords: Ascidian, Eudistoma sp., Schizophyllum commune, Symbiotic, Antibacterial

scholarly journals CRUDE EXTRACTS OF MAGNOLIA ALBA FLOWERS USING N-HEXANE AND METHANOL SOLVENTS AND THEIR ANTI-ACNE POTENTIAL

2021 ◽  
Vol 10 (6) ◽  
pp. 3789-3793
Author(s):  
Sofia Munira
Keyword(s):  
Propionibacterium Acnes ◽  
Methanol Extract ◽  
Antibacterial Properties ◽  
Inhibition Zone ◽  
Positive Control ◽  
Hexane Extract ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Bacterial Inhibition

This study aimed to test the antibacterial activity of n-hexane and methanol extracts of white cempaka flowers (Magnolia alba) against Propionibacterium acnes bacteria. The extract was obtained by using the maceration method for 72 hours. Each extract was tested for its antibacterial properties using the disc diffusion method with the variant concentration of the extract used was 0.05%; 2%; 4%; 6%; and 8%. The results showed that the methanol extract had a higher inhibition zone than the n-hexane extract. In n-hexane extract, the lowest concentration of 0.05% showed an inhibition zone of 6.6 mm and the highest concentration of 8% had an inhibition zone of 9.6 mm. Whereas in methanol extract, the inhibition zone obtained was 7.3 mm at a low concentration of 0.05%, but at the highest concentration of 8% the inhibition zone obtained was 11.6 mm. The effect of extract concentration on the diameter of the inhibition zone formed is very significant (directly proportional), where the higher the concentration used, the larger the diameter of the inhibition zone produced. Antibacterial testing for both extracts showed a weak (< 10 mm) to moderate (> 10 mm) bacterial inhibition, which was similar with the inhibition zone obtained from the positive control (11-11.3 mm; moderate bacterial inhibition).

scholarly journals Uji Aktivitas Antimikroba Ekstrak Jamur Lingzhi (Ganoderma lucidum) Menggunakan Pelarut Etanol 96% Terhadap Staphylococcus aureus

2017 ◽  
Vol 2 (2) ◽  
pp. 41-44
Author(s):  
Prasetyo Handrianto
Keyword(s):  
Staphylococcus Aureus ◽  
Ganoderma Lucidum ◽  
Ethanol Extract ◽  
Inhibition Zone ◽  
Negative Control ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
Traditional Medicines ◽  
Paper Disc

ABSTRAKStaphylococcus aureus merupakan bakteri yang relatif sering dijumpai pada manusia. Beberapa infeksi yang disebabkan oleh Staphylococcus aureus antara lain, bisul, infeksi luka dan pneumonia. Salah satu obattradisional yang dapat digunakan untuk mengobati infeksi yang disebabkan oleh Staphylococcus aureus adalah jamur lingzhi (Ganoderma lucidum). Penelitian dilakukan dengan 5 konsentrasi ekstrak etanol jamur lingzhi, yaitu kontrol negatif (0 µg/ml), 20 µg/ml, 40 µg/ml, 60 µg/ml, 80 µg/ml dan 100 µg/ml dan dilakukan 6 kali pengulangan. Metode yang digunakan dalam uji aktivitas antimikroba yaitu metode difusi kertas cakram. Data zona hambat dianalisis dengan uji Anova One-Way. Hasil penelitian menunjukkan bahwa ekstrak etanol jamurlingzhi (Ganoderma lucidum) dengan konsentrasi 100 µg/ml memiliki rata-rata daya hambat tertinggi yaitu sebesar 18,0 mm (sangat aktif). Dapat disimpulkan bahwa semakin besar konsentrasi ekstrak jamur lingzhi (Ganoderma lucidum), maka akan berpengaruh besar pula terhadap zona hambat bakteri Staphylococcus aureus.Keyword : Antibakteri, Ganoderma lucidum, Staphylococcus aureus, Etanol.ABSTRACTStaphylococcus aureus is a bacteria that can cause infections , such as boils , wound infections and pneumonia. One of the traditional medicines that can be used to treat these infections are fungal lingzhi (Ganodermalucidum). The study was conducted with five concentrations of negative control (0 µg/ml), 20 µg/ml, 40 µg/ml, 60 µg/ml, 80 µg/ml, and 100 µg/ml with six repeats. The method used in the test of antimicrobial activity is paper disc diffusion method. Data of inhibition zone were analyzed by Anova-One Way test. The results showed that the ethanol extract of lingzhi mushroom (Ganoderma lucidum) at concentration 100 µg/ml has highest average of inhibitory regions as big as 18,0 mm. It can be concluded that the greater the concentration of extract of lingzhi mushroom (Ganoderma lucidum) , it will affect the greater the inhibition zone against Staphylococcus aureus.Keyword : Antibakteri, Ganoderma lucidum, Staphylococcus aureus, Etanol.

scholarly journals Formulation and Antibacterial Activity of Liquid Soap Containing Ketapang (Terminalia catappa L.) Leaves Extract

2021 ◽  
Vol 4 (1) ◽  
pp. 43-50
Author(s):  
Asiska Permata Dewi ◽  
Dini Mardhiyani
Keyword(s):  
Antibacterial Activity ◽  
Staphylococcus Epidermidis ◽  
Foam Stability ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Liquid Soap ◽  
Disc Diffusion Method ◽  
Inhibition Zone Diameter ◽  
Terminalia Catappa

Ketapang (Terminalia catappa L.) is traditionally used by the community to treat infections of the skin caused by bacteria or fungi. In this study, T. catappa leaves extract was added to the liquid soap formula as an antibacterial. The purpose of this study was to determine the secondary metabolite compounds contained in T. catappa leaves extract, physical evaluation of the preparation, and antibacterial activity of liquid soap. Liquid soap formula is made with various concentrations of T. catappa leaves extract F0 (0%), F1 (1%), F2 (2%), and F3 (3%). The resulting soap was evaluated for organoleptic, pH, high foam, homogeneity, irritation, and its activity against Staphylococcus aureus, Staphylococcus epidermidis, and Escherichia coli using the disc diffusion method. The results showed that the T. catappa leaves extract contained flavonoids, tannins, saponins, and triterpenoids. The liquid soap formula F0 is clear, while F1, F2, and F3 have the characteristics of brown-dark brown, homogeneous, pH between 4.6-5.2, foam stability between 67-72%, which is not significantly different and stable after five minutes of testing, and it does not irritate the skin. Terminalia catappa leaves extracts liquid soap has antibacterial activity at a concentration of 1%, 2%, and 3%, with the largest inhibition zone diameter produced by S. aureus.

scholarly journals UJI EFEKTIVITAS EKSTRAK BUAH KESEMEK (DYOSPIROS KAKI L.) SEBAGAI ANTIBAKTERI TERHADAP BAKTERI ESCHERICHIA COLI

2019 ◽  
Vol 19 (2) ◽  
pp. 260
Author(s):  
Therry Prosperita K. Wau ◽  
Diaz F. Izdihar ◽  
Katherine Gunawan ◽  
Yolanda Eliza Putri Lubis
Keyword(s):  
Escherichia Coli ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Disc Diffusion Method ◽  
Fruit Extract ◽  
Persimmon Fruit ◽  
Experimental Laboratory ◽  
Escherichia Coli Bacteria ◽  
Mountain Plants

Abstrak : Kesemek (Dyospyros kaki L.) merupakan buah yang berada di tanaman dataran tinggi (pegunungan). Dapat tumbuh dimana saja pada suhu rendah, kelembapan tinggi, intensitas matahari tidak 100% (teduh/mendung). Buah ini mempunyai kandungan senyawa yang memiliki potensi antimikroba yang menghambat pertumbuhan bakteri Escherichia coli. Penelitian ini bertujuan untuk mengetahui adanya efektifitas ekstrak kesemek terhadap pertumbuhan bakteri Escherichia coli pada konsentrasi 100%, 90%, 80%, 70%, 60%, dan 50%. Penelitian ini merupakan penelitian eksperimental laboratotium dengan metode difusi cakram.. Parameter yang diukur adalah besarnya zona hambat minimum dan zona hambat optimum ekstrak terhadap bakteri.  Hasil penelitian didapatkan ekstrak buah kesemek memiliki efektivitas antibakteri pada Escherichia coli, dimanazona hambat minimum rata-ratanya pada konsentrasi 70% (6,1 mm) dan zona hambat optimum rata-rata pada konsentrasi 100% (8,8 mm). Semakin tinggi konsentrasi ekstrak yang diberi maka semakin besar daya antibakterinya. Hasil ini menunjukan bahwa ekstrak buah kesemek memiliki efektivitas antibakteri yang lemah terhadap pertumbuhan bakteri Escherichia coli sesuai klasifikasi respon zona hambat bakteri.Kata kunci: Kesemek (Dyospyros kaki L.), antibakteri, Escherichia coli Abstract : Persimmon (Dyospyros kaki L.) is a fruit that is in highland (mountain) plants. Can grow anywhere at low temperatures, high humidity, the intensity of the sun is not 100% (shade / cloudy). This fruit contains compounds that have antimicrobial potential which inhibits the growth of Escherichia coli bacteria. This study aims to determine the effectiveness of persimmon extract on the growth of Escherichia coli bacteria at concentrations of 100%, 90%, 80%, 70%, 60%, and 50%. This study was an experimental laboratory with disc diffusion method. The parameters measured were the size of the minimum inhibition zone and the optimum zone of extract inhibition against bacteria. The results showed persimmon fruit extracts had antibacterial effectiveness in Escherichia coli, where the minimum inhibition zone was at a concentration of 70% (6.1 mm) and the optimum inhibition zone averaged at a concentration of 100% (8.8 mm). The higher the concentration of extract given, the greater the antibacterial power. These results indicate that persimmon fruit extract has a weak antibacterial effectiveness against the growth of Escherichia coli bacteria according to the classification of bacterial inhibitory zone responses.Keywords: Persimmon (Dyospyros kaki L.), antibacterial, Escherichia coli

Phytochemical and Antimicrobial Evaluation of Terminalia Chebula Fruit Extracts

2020 ◽  
Vol 1 (28) ◽  
pp. 20-26
Author(s):  
Shweta Tyagi ◽  
Keyword(s):  
Diffusion Method ◽  
Terminalia Chebula ◽  
Disc Diffusion ◽  
Phytochemical Screening ◽  
Disc Diffusion Method ◽  
Fruit Extract ◽  
E Coli ◽  
Phytochemical Compounds ◽  
Antimicrobial Evaluation ◽  
Acetone Extracts

Thepresentstudyincludesthephytochemical and antimicrobial evaluation of the fruit of Terminalia chebula(harad) plant. Phytochemical screening of the fruit extract (shadedried)indicatedthepresenceofflavonoids,terpenoids,tannins,alkaloids,saponin, carbohydrates, protein and glycosides. The antibacterial activity of methanol, ethanol, diethylether, acetone, chloroform and aqueous extracts of fruit of Terminalia chebulawas evaluatedagainstthehumanpathogenicbacteria like Bacillus subtilis, Staphylococcus aureus, E coli, Pseudomonas fluorescensand fungilikeAspergillusniger,Aspergillusfumigates, Penicillium chrysogenumby disc diffusion method. Among the extracts analyzed ethanol and acetone extracts showed promising results. Theacetone fruit extract showedmaximum inhibition against Gram positive bacterialstrains(Staphylococcusaureus,12.5mm;Bacillussubtilis,12mm).Phytochemical tests carried out showed that the antimicrobial activityofplant Terminaliachebulafruit may be due to the presence of phytochemical compounds present in it.

scholarly journals Novel Synthetic Monothiourea Aspirin Derivatives Bearing Alkylated Amines as Potential Antimicrobial Agents

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Norsyafikah Asyilla Nordin ◽  
Tchan Wei Chai ◽  
Bee Ling Tan ◽  
Ching Liang Choi ◽  
Ainaa Nadiah Abd Halim ◽  
...  
Keyword(s):  
Antimicrobial Agents ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
E Coli ◽  
Alkyl Chains ◽  
Relative Inhibition ◽  
C Nmr

A new series of aspirin bearing alkylated amines moieties 1–12 were synthesised by reacting isothiocyanate with a series of aniline derivatives in overall yield of 16–56%. The proposed structures of all the synthesised compounds were confirmed using elemental analysis, FTIR, and 1H and  13C NMR spectroscopy. All compounds were evaluated for antibacterial activities against E. coli and S. aureus via turbidimetric kinetic and Kirby Bauer disc diffusion method. Compound 5 bearing meta -CH3 substituent showed the highest relative inhibition zone diameter against tested bacteria compared to ortho and para substituent. Furthermore, aspirin derivatives bearing shorter chains exhibited better bacterial inhibition than longer alkyl chains.

scholarly journals AKTIVITAS ANTIMIKROBA BAKTERI ASAM LAKTAT YANG DIISOLASI DARI MAKANAN TRADISIONAL FERMENTASI KHAS BATAK “NANIURA”

2019 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
Aloysius Aloysius ◽  
Anjurniza Ulfa ◽  
Anggita Kasih Fianti Situmorang ◽  
Harmileni Harmileni ◽  
Edy Fachrial
Keyword(s):  
Antimicrobial Activity ◽  
Pathogenic Bacteria ◽  
Inhibition Zone ◽  
Fermented Food ◽  
Diffusion Method ◽  
Disc Diffusion ◽  
Disc Diffusion Method ◽  
E Coli ◽  
Gram Staining ◽  
Potential Source

Lactic acid bacteria (LAB) could be isolated from various fermented food products. One potential source of LAB is traditional fermented food. The aim of the study was to isolate and investigate antimicrobial activity of LAB isolated from traditional Batak food, “naniura”. The LAB isolates were characterized by Gram staining, fermentation type and catalase test. The investigation of antimicrobial activity of LAB against pathogenic bacteria were conducted using disc diffusion method. The results showed that 6 isolates of BAL were successfully isolated namely BN1, BN2, BN3, BN4, BN5 and BN6 had characteristics of Gram positive, rod shaped and catalase negative. All selected isolate have heterofermentation type. Four isolates (BN1, BN2, BN5 and BN6) were able to inhibit S. aureus, E. coli and S. typhi with inhibition zone diameters ranging from 6,9 to 12,3 cm. Based on the result, it was concluded that LAB isolated from naniura has potential as a source of probiotics.

scholarly journals EFFECTIVENESS TEST OF ANTI-BACTERIAL LIME JUICE (Citrus aurantifolia) ON SALMONELLA SP BACTERIA IN SALMON FISH (Oncorhynchus nerka)

2020 ◽  
Vol 7 (1) ◽  
pp. 81-89
Author(s):  
Qori Fadillah ◽  
Linda Chiuman ◽  
Chrismis Novalinda Ginting ◽  
Ermi Girsang
Keyword(s):  
Inhibition Zone ◽  
Bacterial Activity ◽  
Diffusion Method ◽  
P Value ◽  
Disc Diffusion ◽  
Inhibitory Zone ◽  
Disc Diffusion Method ◽  
Lime Juice ◽  
Bacterial Effect ◽  
Made In

Salmonella Sp is a gram-negative pathogens that are often found in marine foods,one of  process of serving  salmon is channeling lime juice, where lime juice is acidic and has phytochemical properties that have anti-bacterial properties. This study aims to explore anti-bacterial effect lime juice on Salmonella thypii bacteria in Salmon. This research is an experimental study using  disc diffusion method. Lime samples that were used were purchased from one of the modern markets in Medan which were made in several series of concentrations using distilled water as a solvent, while the salmon samples used in this study were purchased from one of the Japanese dining restaurants located in Medan City. Meanwhile, isolation of Salmonella thypii bacteria from salmon samples was carried out using nutrient broth and SSA media. The results of this study indicate that differences in concentration indicate the differences in the diameter of the inhibitory zone (P value = 0.000). With the diameter of the widest inhibition zone formed by a concentration of 100% is 15.40 ± 0.44 mm and the smallest diameter is formed by a concentration of 5% which is 7.23 ± 0.55 mm. Thus, it can be concluded that the lime juice has anti-bacterial activity against Salmonella thypii bacteria from salmon.

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