scholarly journals Uji Konsentrasi Hambat Minimum Ekstrak Daun Gedi (Abelmoschus manihot L.) terhadap Pertumbuhan Bakteri Streptococcus Mutans

e-GIGI ◽  
2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Helen N. Sekeon ◽  
Heriyannis Homenta ◽  
Michael A. Leman
Keyword(s):  
Dental Caries ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Inhibitory Concentration ◽  
Inhibitory Effect ◽  
Tooth Surface ◽  
Control Group ◽  
Control Group Design ◽  
Cariogenic Bacteria ◽  
Group Design

Abstract: Streptococcus mutans is the most common bacterium that causes dental caries due to its ability to ferment carbohydrates into acid resulting in the decreased pH on the tooth surface. Prevention of dental caries could be achieved by inhibiting the growth of cariogenic bacteria. Various efforts to control and prevent the cariogenic bacteria include the usage of herbal ingredients; one of them is gedi leaves (Abelmoschus manihot L.). These gedi leaves contain bioactive compounds such as flavonoids, alkaloids, steroids, and saponins. This study was aimed to prove that gedi leaf extract had inhibitory effect on the growth of S.mutans and to obtain the minimum inhibitory concentration (MIC) of this extract on the growth of S. mutans. This was a true experimental design with a randomized pretest-posttest control group design. Gedi leaf extract was obtained by maceration method in 96% ethanol. The results showed that gedi leaf extract had an antibacterial effect on the growth of S. mutans. We used turbidimetry, UV-Vis spectrophotometer, and two times of treatment to obtain the MIC of gedi leaf extract on Streptococcus mutans which was 6.25%. Conclusion: Gedi leaf extract could inhibit the growth of S. mutans with a MIC of 6.25%.Keywords: dental caries, gedi leaf extract (Abelmoschus manihot L.), Streptococcus mutans Abstrak: Streptococcus mutans merupakan bakteri yang paling banyak menyebabkan karies gigi karena bakteri ini berkemampuan memfermentasi karbohidrat menjadi asam yang berakibat turunnya pH pada permukaan gigi. Pencegahan karies gigi dapat dicapai dengan menghambat pertumbuhan bakteri kariogenik. Berbagai upaya dilakukan untuk mengen-dalikan dan mencegah bakteri kariogenik, antara lain dengan menggunakan bahan herbal; salah satunya yaitu tanaman gedi (Abelmoschus manihot L.). Daun gedi mengandung senyawa bioaktif antara lain flavonoid, alkaloid, steroid, dan saponin. Penelitian ini bertujuan untuk membuktikan efek inhibisi ekstrak daun gedi terhadap pertumbuhan S. mutans dan mendapatkan konsentrasi hambat minimum (KHM) ekstrak daun gedi terhadap pertumbuhan bakteri S. mutans. Jenis penelitian ini ialah eksperimental murni dengan randomized pretest-posttest control group design. Ekstrak daun gedi dibuat dengan metode maserasi dengan menggunakan etanol 96%. Hasil penelitian menunjukkan bahwa ekstrak daun gedi (Abelmoschus manihot L.) memiliki efek antibakteri dalam menghambat pertumbuhan bakteri Streptococcus mutans. Dengan menggunakan metode turbidimetri dan spektrofotometer UV-Vis dalam 2 (dua) kali perlakuan maka diperoleh KHM ekstrak daun gedi (Abelmoschus manihot L.) terhadap bakteri Streptococcus mutans terdapat pada konsentrasi 6,25%. Simpulan: Ekstrak daun gedi dapat meghambat pertumbuhan Streptococcus mutans dengan KHM pada konsentrasi 6,25%.Kata kunci: karies gigi, ekstrak daun gedi (Abelmoschus manihot L.), Streptococcus mutans

scholarly journals Uji Konsentrasi Hambat Minimum Ekstrak Daun Gedi (Abelmoschus manihot L. Medik) terhadap Pertumbuhan Streptococcus mutans

e-GIGI ◽  
2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Benedicta N. D. Rori ◽  
Johanna A. Khoman ◽  
Aurelia S. R. Supit
Keyword(s):  
Dental Caries ◽  
Minimal Inhibitory Concentration ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Inhibitory Concentration ◽  
Control Group ◽  
Dilution Method ◽  
Control Group Design ◽  
Group Design ◽  
Extract Concentration

Abstract: The main problem in dental health is dental caries that occurs due to the fermentation by Streptococcus mutans bacteria. Gedi leaf (Abelmoschus manihot L. Medical) is one of the common plants in Northern Celebes that contains antimicrobial compounds namely flavonoid, alkaloid, steroid, and saponin; all of them have been proved to inhibit the growth of S. mutans. This study was aimed to determine the minimal inhibitory concentration (MIC) of gedi leaf extract (Abelmoschus manihot L. Medical) to S. mutans growth. This was a true experimental study with a randomized pretest-posttest control group design. The method used in this study was serial dilution method with turbidimetry and spectrophotometry. Samples of gedi leaves were obtained at Paal 2 Manado, and were extracted with maceration method using ethanol 96%. S. mutans bacteria were obtained from the pure bacterial stock at Microbiology Laboratory of Pharmacy Study Program, Faculty of Mathematics and Natural Science University of Sam Ratulangi Manado. The turbidimetry test showed that the tube content became clearer at 25% of extract concentration. Moreover, the UV-Vis spectro-photometer showed a decrease of OD value for the first time at 25% of extract concentration. Conclusion: The minimal inhibitory concentration (MIC) of gedi leaf extract (Abelmoschus manihot L. Medical) to Streptococcus mutans growth was at concentration of 25%.Keywords: gedi leaf (Abelmoschus manihot L. Medical), Streptococcus mutans, MIC, dental caries Abstrak: Masalah utama dalam kesehatan gigi ialah karies gigi yang terbentuk karena proses peragian oleh bakteri Streptococcus mutans. Daun gedi (Abelmoschus manihot L. Medik) merupakan salah satu tanaman khas daerah Sulawesi Utara yang mengandung senyawa antimikroba berupa flavonoid, alkaloid, steroid, dan saponin yang telah terbukti memiliki efek antibakteri terhadap pertumbuhan S. mutans. Penelitian ini bertujuan untuk mengetahui konsentrasi hambat minimum (KHM) ekstrak daun gedi (Abelmoschus manihot L. Medik) terhadap pertumbuhan S. mutans. Jenis penelitian ialah eksperimental murni dengan pretest-posttest control group design. Metode yang digunakan dalam penelitian ini yaitu metode serial dilusi dengan pengujian turbidimetri dan spektrofotometri. Daun gedi diperoleh dari Kecamatan Paal 2 Manado, dan diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Bakteri S. mutans diambil dari stok bakteri murni Laboratorium Mikrobiologi Program Studi Farmasi Fakultas MIPA Universitas Sam Ratulangi Manado. Hasil pengujian turbidimetri memperlihatkan bahwa larutan dalam tabung terlihat mulai jernih pada konsentrasi ekstrak 25%. Pada pengujian spektrofotometer UV-Vis terlihat penurunan nilai OD pertama kali pada konsentrasi 25%. Simpulan: Konsentrasi hambat minimum ekstrak daun gedi (Abelmoschus manihot L. Medik) terhadap pertumbuhan Streptococcus mutans terdapat pada konsentrasi 25%.Kata kunci: daun gedi (Abelmoschus manihot L. Medik), Streptococcus mutans, KHM, karies

Uji konsentrasi hambat minimum (KHM) ekstrak daun binahong (Anredera cordifolia Steenis) sebagai antibakteri terhadap pertumbuhan Streptococcus mutans

e-GIGI ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Klaudya E. Warokka ◽  
Jane Wuisan ◽  
Juliatri .
Keyword(s):  
Minimal Inhibitory Concentration ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Inhibitory Concentration ◽  
Test Methods ◽  
Control Group ◽  
Dilution Method ◽  
Control Group Design ◽  
Study Program ◽  
Group Design

Abstract: Inadequate oral and dental hygiene can cause plaques containing various kinds of bacteria; one of them is Streptococcus mutans which is the main cause of dental caries. Binahong leaf (Anredera cordifolia Steenis) is a medicinal herb that contains antibacterial compounds namely flavonoids, alkonoid, terpanoid, and saponins. This study aimed to determine the minimal inhibitory concentration (MIC) of binahong leaf extract to the growth of Streptococcus mutans. This was a true experimental study with a randomized pretest-posttest control group design. The method used in this study was serial dilution method with turbidimetry and spectrophotometry as the test methods. Binahong leaves were taken from Tempok village and were extracted with maceration method using ethanol 96%. Streptococcus mutans bacteria were obtained from a pure bacterial stock in Microbiology Laboratory of Pharmacy Study Program, Faculty of Mathematics and Natural Science University of Sam Ratulangi Manado. The result showed that the minimal inhibitory concentration (MIC) of binahong leaf extract (Anredera cordifolia steenis) to the growth of Streptococcus mutans was 6.25%.Keywords: Streptococcus mutans, binahong leaf, MIC, tooth cariesAbstrak: Kebersihan gigi dan mulut yang buruk dapat menyebabkan terbentuknya plak yang mengandung berbagai macam bakteri, salah satu diantaranya Streptococcus mutans yang menjadi penyebab utama terjadinya karies gigi. Daun binahong (Anredera cordifolia steenis) merupakan tanaman herbal yang mengandung senyawa antibakteri yaitu flavonoid, alkonoid, terpanoid dan saponin. Penelitian ini bertujuan untuk mengetahui konsentrasi hambat minimum (KHM) dari daun binahong terhadap pertumbuhan Streptococcus mutans. Jenis penelitian ini ialah eksperimental murni dengan randomized pretest-posttest control group design. Penelitian ini menggunakan metode serial dilusi dengan metode pengujian turbidimetri dan spektrofotometri. Daun binahong diperoleh di desa Tempok, dan diekstraksi dengan metode maserasi menggunakan etanol 96%. Bakteri Streptococcus mutans diambil dari stok bakteri murni Laboratorium Mikrobiologi Program Studi Farmasi Fakultas MIPA Universitas Sam Ratulangi Manado. Hasil penelitian mendapatkan bahwa KHM daun binahong terhadap pertumbuhan streptococcus mutans ialah pada konsentrasi 6,25%.Kata kunci: Streptococcus mutans, daun binahong, KHM, karies gigi

scholarly journals Uji konsentrasi hambat minimum (KHM) ekstrak daun pacar air (Impatiens balsamina L.) terhadap pertumbuhan Streptococcus mutans

e-GIGI ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Raymond A. Lolongan ◽  
Olivia Waworuntu ◽  
Christy N. Mintjelungan
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Inhibitory Concentration ◽  
Control Group ◽  
Microbiology Laboratory ◽  
Control Group Design ◽  
Group Design ◽  
Impatiens Balsamina ◽  
Herbal Plant

Abstract: Impatiens balsamina L. is an herbal plant which contains flavonoids that has been proven to inhibit the growth of Streptococcus mutans. This study was aimed to determine the minimum inhibitory concentration (MIC) of the balsamina leaf extract on the growth of Streptococcus mutans. This was a true experimental study with a randomized pretest-postest control group design. The method used was serial dilution and tested with the spectrophotometer and turbiditry measurements. Balsamina leaf was extracted by using maceration method with 96% ethanol. The Streptococcus mutans bacteria were obtained from pure stock bacteria at Microbiology Laboratory of Pharmacy Faculty of Mathematics, University of Sam Ratulangi. The results indicated that the minimum inhibitory concentration (MIC) of the balsamina leaf (Impatiens balsamina L.) extract on the growth of Streptococcus mutans was at a concentration of 3.125%.Keywords: balsamina leaf (Impatiens balsamina L.), Streptococcus mutans, MIC Abstrak: Pacar Air (Impatiens balsamina L.) merupakan tanaman herbal yang mengandung flavonoid yang telah terbukti dapat menghambat pertumbuhan Streptococcus mutans. Penelitian ini bertujuan untuk mengetahui konsentrasi hambat minimum (KHM) dari ekstrak daun Pacar Air terhadap pertumbuhan Streptococcus mutans. Jenis penelitian ialah eksperimental murni dengan Randomized Pretest-Posttest Control Group Design. Metode yang digunakan dalam penelitian ini yaitu metode serial dilusi dengan metode pengujian turbidimetri dan spektrofotometri. Daun Pacar air diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Bakteri Streptococcus mutans diperoleh dari stok bakteri murni Laboratorium Mikrobiologi Program Studi Farmasi Fakultas MIPA Universitas Sam Ratulangi. Hasil penelitian ini menunjukkan bahwa konsentrasi hambat minimum (KHM) ekstrak daun Pacar Air terhadap pertumbuhan Streptococcus mutans pada konsentrasi 3,125%. Kata kunci: daun pacar air (Impatiens balsamina L), Streptococcus mutans, KHM

scholarly journals Antibiofilm Activity of Mangosteen (Garcinia mangostana L.) Flavonoids against Streptococcus mutans Bacteria

2020 ◽  
Vol 10 (2) ◽  
pp. 48
Author(s):  
Sri Kunarti ◽  
Aulia Ramadhani ◽  
Laskmiari Setyowati
Keyword(s):  
Dental Caries ◽  
Streptococcus Mutans ◽  
Tooth Enamel ◽  
Tooth Surface ◽  
Control Group ◽  
Antibiofilm Activity ◽  
Garcinia Mangostana ◽  
Control Group Design ◽  
Biofilm Inhibition ◽  
Significant Difference

Background: Dental caries is one of the most common infectious diseases and often occurs in the community caused by bacteria. Attached bacteria in the tooth surface for a long time will form a biofilm and will lead to demineralization characterized by damage in the structure of the tooth enamel. The bacteria that cause dental caries and can form biofilms is Streptococcus mutans. The bacteria inside biofilms are more resistant to antibacterial agents. Flavonoids in mangosteen pericarp extract can be a cleaner alternative for the anti-biofilm cavity that has properties against Streptococcus mutans. Purpose: To determine the activity of flavonoids in mangosteen pericarp extract at a certain concentration against Streptococcus mutans bacteria. Methods: This study was a laboratory experimental study with a post-test only control group design. Streptococcus mutans were diluted according to the Mc Farland dilution standard 106 in Tryptic Soy Broth (TSB) medium and put in a flexible U-bottom microtiter plate. Then it was incubated for 5x24 hours and checked using crystal violet simple staining to see the formation of biofilms. Flavonoid extract of mangosteen pericarp performed serial dilution in a concentration of 100%, 50%, 25%, 12.5%, 6.25%, 3.125%, 1.56%, and 0.78% was added, and the incubation process were conducted for 1x24 hours. OD (Optical Density) readings were done with a wavelength of 595 nm. Results: There was a significant difference between the test groups and the positive control group. The concentration of 100% had the anti-biofilm activity and showed the value of the highest percentage of inhibition, whilst the concentration of 0.78% showed a minimum biofilm inhibition concentration. The results were demonstrated by a statistical analysis test. Conclusion: Flavonoid extract of mangosteen pericarp at a certain concentration has anti-biofilm activity against Streptococcus mutans biofilm.

scholarly journals Effectivity of Jatropha multifida L. Leaves Extract as Antibacterial on Streptococcus mutans using In Vitro Testing Methods

2021 ◽  
Vol 7 (2) ◽  
pp. 415-421
Author(s):  
Listyaning Kartiko Kinasih ◽  
Idamawati Nababan ◽  
Suci Erawati ◽  
Rouli Natasia M Simanjuntak
Keyword(s):  
Dental Caries ◽  
Streptococcus Mutans ◽  
Leaf Extract ◽  
Control Group ◽  
Entire Body ◽  
Body Parts ◽  
Control Group Design ◽  
The Individual ◽  
Jatropha Multifida

Intoduction: Health is the condition of the entire body and body parts of an individual who is free from disease both physically, mentally and socially, thus enabling the individual to be able to carry out daily activities more productively. However, many people neglect their own health, especially in the field of dental and oral health. Caries is one of the most common oral and dental problems. The prevalence of dental caries in Indonesia is high, namely 88.8%. Dental caries is caused by Streptococcus mutans bacteria which plays a role in the conversion of sucrose to lactic acid. Infection due to Streptococcus mutans bacteria can be treated by taking antibiotics. Apart from drugs, antibiotics can also be obtained from natural ingredients, one of which is the tintir castor plant (Jatropha multifida Linn) or commonly known as the betadine. Objective: To see the effect of the antibacterial content of tintir leaves against Streptococcus mutans bacteria and to determine the differences in the antibacterial effect of betadine leaf extract (Jatropha multifida L.) from a concentration of 25%, 50%, 75%, and 100% against Streptococcus mutans. Methods: The type of research used in this study was a laboratory experimental study with a post-test-only control group design as the research design and to test the sensitivity of bacteria using the paper disc diffusion test. Data analysis using One-Way ANOVA. Result: The results of this study indicate the effect of tintir castor leaf extract (Jatropha multifida L.) in inhibiting the growth of Streptococcus mutans bacteria.

scholarly journals Uji Konsentrasi Hambat Minimum (KHM) Ekstrak Daun Mengkudu (Morinda citrifolia L.) terhadap Candida albicans Secara In Vitro

e-GIGI ◽  
2017 ◽  
Vol 5 (2) ◽  
Author(s):  
Lisa Ramschie ◽  
Pieter L. Suling ◽  
Krista V. Siagian
Keyword(s):  
Candida Albicans ◽  
Minimum Inhibitory Concentration ◽  
Leaf Extract ◽  
Inhibitory Concentration ◽  
Morinda Citrifolia ◽  
Control Group ◽  
Dilution Method ◽  
Control Group Design ◽  
Group Design

Abstract: Noni (Morinda cittrifolia L.) leaves contain antraquinon, atsiri oil, saponin, tannin, alkaloid, flavonoid, polifenol, and sterol that have been proved can inhibit the growth of Candida albicans. This study was aimed to establish the minimum inhibitory concentration (MIC) of noni leaf extract against Candida abicans. This was a true experimental study with a randomized pretest-posttest control group design. We used serial dilution method with turbidimetry and spectrophotometry tests. Noni leaves were extracted by using maceration with 96% ethanol. Candida albicans fungi were obtained from Microbiology Laboratory of Faculty of Mathematics and Natural Sciences, Sam Ratulangi University. The turbidimetry test using three repetitions showed that the MIC of noni leaf extract against Candida albicans was 6.25% meanwhile the spectrophotometry test established 12.5% as the MIC of noni leaf extract. Conclusion: Minimum inhibitory concentration of noni (Morinda cittrifolia L.) leaf extract against the growth of Candida albicans was 12.5%.Keywords: noni (Morinda citrifolia L.), Candida albicans, minimum inhibitory concentration (MIC) Abstrak: Daun mengkudu (Morinda citrifolia L.) mengandung antraquinon, minyak atsiri, saponin, tannin, alkaloid, flavonoid, polifenol dan sterol yang terbukti dapat menghambat pertumbuhan Candida albicans. Penelitian ini bertujuan untuk mendapatkan konsentrasi hambat minimum (KHM) dari ekstrak daun mengkudu terhadap Candida albicans. Jenis penelitian ialah eksperimental murni dengan randomized pretest-posttest control group design. Metode yang digunakan dalam penelitian yaitu serial dilusi dengan pengujian turbidimetri dan spektrofotometri. Daun mengkudu diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Jamur Candida albicans diambil dari stok jamur Laboratorium Mikrobiologi Program Studi Farmasi Fakultas MIPA Universitas Sam Ratulangi. Hasil penelitian menunjukkan bahwa pengujian turbidimetri dengan tiga kali perlakuan mendapatkan KHM pada konsentrasi 6,25% sedangkan pengujian spektrofotometri mendapatkan KHM pada konsentrasi 12,5%. Simpulan: Konsentrasi hambat minimum (KHM) ekstrak daun mengkudu (Morinda citrifolia L.) terhadap pertumbuhan Candida albicans terdapat pada konsentrasi 12,5%.Kata kunci: mengkudu (Morinda citrifolia L.), Candia albicans, konsentrasi hambat minimum (KHM)

scholarly journals Uji daya hambat ekstrak biji buah alpukat (Persea americana Mill.) terhadap pertumbuhan Streptococcus mutans

e-GIGI ◽  
2017 ◽  
Vol 5 (2) ◽  
Author(s):  
Anggriana H. Bujung ◽  
Heriyannis Homenta ◽  
Johanna A. Khoman
Keyword(s):  
Streptococcus Mutans ◽  
Inhibitory Effect ◽  
Seed Extract ◽  
Persea Americana ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Paper Disk ◽  
Post Test ◽  
Avocado Seed

Abstract: In addition to daily consumption, avocado is also used to treat oral diseases. Scientific studies showed that avocado seed contained flavonoids, tannins, and alkaloid which were expected to inhibit bacterial growth. This study was aimed to obtain the bacterial inhibitory effect of avocado seed (Persea americana Mill.) extract on Streptococcus mutans as the primary cause of dental caries. This was a true experimental study with the post test only control group design. This study used a modified Kirby-Bauer method with paper disk. The positive control was erythromycin and the negative control was aquadest. Avocado seeds were extracted by using maceration method with 96% ethanol. The Streptococcus mutans bacteria were obtained from pure stock of Microbiology Laboratory of Pharmacy Study Program University of Sam Ratulangi Manado. The results showed that the mean diameter of inhibition zone of avocado seed extract was 21.8 mm which was classified as very strong inhibition. Conclusion: Persea Americana Mill. seed extract had a very strong inhibitory effect on the growth of Streptococcus mutans.Keywords: avocado seed (Persea americana Mill.), Streptococcus mutans, inhibition effectAbstrak: Selain menjadi bahan konsumsi masyarakat yang lezat, ternyata alpukat telah lama dipercaya dapat mengobati penyakit di dalam rongga mulut. Di dalam buah alpukat terdapat biji yang terbukti melalui penelitian ilmiah mengandung flavonoid, alkaloid, dan tannin yang mampu menghambat pertumbuhan bakteri. Penelitian ini bertujuan untuk mengetahui daya hambat ekstrak biji buah alpukat (Persea americana Mill.) terhadap pertumbuhan Streptococcus mutans. Jenis penelitian ialah eksperimental murni dengan post test only control group design. Metode yang digunakan ialah modifikasi Kirby-Bauer dengan paper disk. Kontrol positif menggunakan antibiotik eritromisin dan kontrol negatif menggunakan akuades. Biji buah alpukat diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Bakteri Streptococcus mutans diambil dari stok bakteri murni Laboratorium Mikrobiologi Program Studi Farmasi Fakultas MIPA Universitas Sam Ratulangi Manado. Hasil penelitian menunjukkan diameter rerata zona hambat dari ekstrak biji buah alpukat yang terbentuk ialah 21,8 mm dan digolongkan sebagai zona hambat sangat kuat. Simpulan: Ekstrak biji buah alpukat memiliki daya hambat sangat kuat terhadap pertumbuhan Streptococcus mutans.Kata kunci: biji buah alpukat (Persea americana Mill.), Streptococcus mutans, daya hambat

scholarly journals Uji konsentrasi hambat minimum (KHM) ekstrak buah mengkudu (Morinda citrifolia L.) terhadap pertumbuhan Streptococcus mutans

e-GIGI ◽  
2017 ◽  
Vol 5 (2) ◽  
Author(s):  
Jecklin Makolit ◽  
Olivia A. Waworuntu ◽  
Michael A. Leman
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Streptococcus Mutans ◽  
Inhibitory Concentration ◽  
Morinda Citrifolia ◽  
Control Group ◽  
Dilution Method ◽  
Fruit Extract ◽  
Control Group Design ◽  
Group Design ◽  
Serial Dilution Method

Abstract: Noni fruit (Morinda cittrifolia L.) is an herbal plant that contains antibacterial substances, inter alia acubin, lasperuloside, alizarin, and some antraquinons, that have been proved to inhibit the growth of Streptococcus mutans. This study was aimed to obtain the minimum inhibitory concentration (MIC) of noni fruit extract (Morinda citrifolia L.) against the growth of Streptococcus mutans. This was a true experimental study with a randomized pretest-posttest control group design. This study used a serial dilution method with turbidimetry and spectrophotometry tests. Noni fruit was extracted by using maceration method with 96% ethanol. Streptococcus mutans bacteria were obtained from pure stock of Microbiology Laboratory of Pharmacy Program Study, University of Sam Ratulangi Manado. The results showed that the MIC of noni fruit extract against the growth of Streptococcus mutans was at 50% of concentration. Conclusion: The minimum inhibitory concentration of Morinda citrifolia L. extract against the growth of Streptococcus mutans was 50%.Keywords: noni fruit (Morinda citrifolia L.), Streptococcus mutans, MIC Abstrak: Buah mengkudu (Morinda citrifolia, L) merupakan tanaman herbal dengan kandungan bahan berkhasiat antibakterial seperti acubin, lasperuloside, alizarin, dan beberapa zat antraquinon yang terbukti dapat menghambat pertumbuhan Streptococcus mutans. Penelitian ini bertujuan untuk mengetahui konsentrasi hambat minimum (KHM) dari ekstrak buah mengkudu (Morinda citrifolia L.) terhadap pertumbuhan Streptococcus mutans. Jenis penelitian ialah eksperimental murni dengan randomized pretest-posttest control group design. Metode yang digunakan yaitu metode serial dilusi dengan metode pengujian turbidimetri dan spektrofotometri. Buah mengkudu diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Bakteri Streptococcus mutans diambil dari stok bakteri murni Laboratorium Mikrobiologi Program Studi Farmasi Fakultas MIPA Universitas Sam Ratulangi. Hasil penelitian menunjukkan bahwa KHM ekstrak buah mengkudu terhadap pertumbuhan Streptococcus mutans pada konsentrasi 50%. Simpulan: Konsentrasi hambat minimum ekstrak buah mengkudu (Morinda citrifolia L.) terhadap pertumbuhan Streptococcus mutans pada konsentrasi 50%.Kata kunci: buah mengkudu (Morinda citrifolia L.), Streptococcus mutans, KHM

scholarly journals Uji Daya Hambat Ekstrak Tinta Cumi-cumi (Loligo sp) terhadap Pertumbuhan Bakteri Streptococcus mutans

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Rocky J. Mangindaan ◽  
Christy N. Mintjelungan ◽  
Damajanty H. C. Pangemanan
Keyword(s):  
Streptococcus Mutans ◽  
Inhibitory Effect ◽  
Control Group ◽  
Strong Inhibition ◽  
Control Group Design ◽  
Group Design ◽  
Mean Diameter ◽  
Post Test ◽  
Strong Inhibitory Effect ◽  
The Mean

Abstract: Dental caries is still a health problem in Indonesia. There are several factors that play some important roles in the occurence of caries, as follows: microorganism, host, food, and time. Streptococcus mutans is one of the microorganisms that cause caries. Squid ink contains melanin which has an active compound to inhibit microbial activity. This study was aimed to determine the inhibitory effect of squid ink extract (Loligo sp) on the growth of Streptococcus mutans. This was a laboratory experimental study, with a post test only control group design. The results showed that the mean diameter of the inhibitory zones of the squid ink extract (Loligo sp) was 10.50 mm which was categorized as strong inhibition (Davis and Stout criteria). In conclusion, the squid ink extract (Loligo sp) had a strong inhibitory effect on the growth of Streptococcus mutans bacteria.Keywords: squid ink extract (Loligo sp), Streptococcus mutans, zone of inhibitionAbstrak: Karies gigi merupakan salah satu masalah kesehatan gigi dan mulut di Indonesia. Faktor-faktor penyebab karies gigi yaitu mikroba, pejamu, makanan, dan waktu. Salah satu mikroba penyebab karies ialah bakteri Streptococcus mutans. Tinta cumi-cumi mengandung melanin yang memiliki senyawa aktif untuk menghambat aktivitas mikroba. Penelitian ini bertujuan untuk mengetahui daya hambat ekstrak tinta cumi-cumi (Loligo sp) terhadap pertumbuhan bakteri Streptococcus mutans. Jenis penelitian ialah eksperimental laboratorik, dengan post test only control group design. Hasil penelitian menunjukkan diameter rerata zona hambat dari ekstrak tinta cumi-cumi (Loligo sp) sebesar 10,50 mm dan digolongkan dalam kategori kuat (kriteria Davis dan Stout). Simpulan penelitian ini ialah ekstrak tinta cumi-cumi (Loligo sp) memiliki daya hambat yang kuat terhadap pertumbuhan bakteri Streptococcus mutans.Kata kunci: ekstrak tinta cumi-cumi (Loligo Sp), Streptococcus mutans, zona hambat

scholarly journals Uji daya hambat ekstrak daun bayam petik (Amaranthus hybridus L.) terhadap pertumbuhan bakteri Staphylococcus aureus

e-GIGI ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Oktovianus Pormes ◽  
Damajanty H.C. Pangemanan ◽  
Michael A. Leman
Keyword(s):  
Staphylococcus Aureus ◽  
Leaf Extract ◽  
Inhibitory Effect ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Control Group Design ◽  
Amaranthus Hybridus ◽  
Group Design ◽  
Post Test

Abstract: Synthetic antibiotics have certain side effects, therefore, it is necessary to find alternative natural antibacterial materials which is easily available and to be cultivated, inter alia Amaranthus hybridus L. Its leaves contain active compounds, so they might have antibacterial potential. This study was aimed to determine the inhibitory effect of Amaranthus hybridus leaf extract on the growth of Staphylococcus aureus. This was a true experimental study using post test only control group design. This study was conducted at the Microbiology Laboratory of Faculty of Medicine and the Natural Phytochemical Laboratory of Faculty of Mathematics at Sam Ratulangi University. The modified Kirby-Bauer method was used with three wells, containing Amaranthus hybridus leaf extract, the positive control, and the negative control; and with 5 repetitions. The results showed that the average diameters of the inhibition zone of Amaranthus hybridus leaf extract and of the negative control were 0 mm meanwhile of erythromycin as the positive control was 38.8 mm. Conclusion: Amaranthus hybridus leaf extract had no inhibitory effect on Staphylococcus aureus. Keywords: inhibitory zone, Amaranthus hybridus L, Staphylococcus aureus Abstrak: Bahan antibiotik sintetik memiliki efek samping, sehingga perlu dicari bahan alternatif yaitu bahan alami yang mudah didapat dan dibudidayakan, salah satunya ialah bayam petik (Amaranthus hybridus L.). Daun bayam petik memiliki potensi antibakteri karena memiliki kandungan senyawa aktif. Penelitian ini bertujuan untuk mengetahui daya hambat ekstrak daun bayam petik terhadap pertumbuhan bakteri Staphylococcus aureus. Jenis penelitian ialah eksperimental murni dengan post test only control group design. Penelitian dilakukan di Laboratorium Mikrobiologi Fakultas Kedokteran dan Labaratorium Fitokimia Fakultas MIPA Unsrat. Metode pengujian yang digunakan ialah modifikasi Kirby-Bauer dengan menggunakan tiga buah sumuran yang diberi ekstrak daun bayam petik, kontrol positif, dan kontrol negatif, sebanyak 5 kali pengulangan. Hasil penelitian menunjukan diameter rerata dari zona hambat yang terbentuk pada sumur dengan ekstrak daun bayam petik dan pada sumur dengan kontrol negatif ialah 0 mm, sedangkan pada sumur yang diberi kontrol positif amoksisilin terjadi resistensi sehingga diganti dengan eritromisin dan didapatkan rerata zona hambat ialah 38,8 mm. Simpulan: Ekstrak daun bayam petik (Amaranthus hybridus L.) tidak memiliki daya hambat terhadap pertumbuhan bakteri Staphylococcus aureus.Kata kunci: daya hambat, Amaranthus hybridus L, Staphylococcus aureus

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