scholarly journals The Difference of Antibacterial Power Between Cocoa Peel (Theobroma cacao) Extract 6% Compared to NaOCL 5% Againts Lactobacillus acidophilus

2021 ◽  
Vol 11 (2) ◽  
pp. 67
Author(s):  
Tamara Yuanita ◽  
Dian Agustin Wahjuningrum ◽  
Mega Selvia
Keyword(s):  
Lactobacillus Acidophilus ◽  
Average Diameter ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Control Group ◽  
Control Group Design ◽  
Post Test ◽  
The Difference ◽  
Peel Extract

Background: Lactobacillus acidophilus is a gram-positive rod-shaped bacteria which mostly causes chronic caries lesions. In the process of cavity preparation it is reported that it is not possible to remove all microorganisms and even bacteria can survive even after removal of the necrotic tissue. Efforts to stop the growth of these bacteria are by chemical cavity cleanser using a 5% NaOCl, but this material have disadvantages including irritating periradicular tissue, unpleasant odor, and toxicity. Due to its disadvantages, it is hoped that natural ingredients can be used as alternatives. Cocoa peel extract has active compounds of tannins, flavonoids, alkaloids, terpenoids, and saponins which have antibacterial ability with a concentration of 6% according to the non-toxic minimum kill concentration of Lactobacillus acidophilus. Purpose: To analyze the difference in antibacterial power between the extract of cocoa bark with a concentration of 6% compared to 5% NaOCl against Lactobacillus acidophilus. Methods: This study was a laboratory experimental in vitro with a post test-only control group design. Using diffusion method against Lactobacillus acidophilus grown in tubes containing BHIB, then cultured in a petridish which contains a nutrient agar and is divided into 2 parts extract cocoa peel extract 6% and NaOCl 5%, then each petridish given a paper disc that has been poured 10μl by each material, then incubated inthe incubator for 2x24 hours at 37oC and observe the diameter of the inhibition zone formed using a caliper. Results: The average diameter of the inhibition zone formed in the 6% cocoa peel extract was 11.8375 mm and NaOCl 5% was 26.0344 mm against Lactobacillus acidophilus. Conclusion: There is a difference in antibacterial power between 6% cocoa peel extract and 5% NaOCl against Lactobacillus acidophilus.

scholarly journals Antibakteri Ekstrak Kulit Buah Kakao (Theobroma cacao) 6,25% dan NaOCl 2,5% Terhadap Bakteri Streptococcus sanguinis

2019 ◽  
Vol 9 (1) ◽  
pp. 19
Author(s):  
Sepdhyo Wahyu Nugroho ◽  
Mandojo Rukmo ◽  
Edhie Arief Prasetyo ◽  
Tamara Yuanita
Keyword(s):  
Theobroma Cacao ◽  
Average Diameter ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Control Group ◽  
Control Group Design ◽  
Streptococcus Sanguinis ◽  
Petri Dishes ◽  
Peel Extract

Background: Streptococcus sanguinis is a gram-positive bacterium that infects and penetrates into dentinal tubules from a depth of 150 μm up to 792 μm. Chemicals, namely 2.5% NaOCl, are used to mitigate the growth of these bacteria via irrigation of the root canals, but 2.5% NaOCl still has disadvantages including irritating periradicular tissue, having an unpleasant odor, and being toxic. Due to these shortcomings, natural materials are expected to be used as alternatives. Cocoa peel extract has active tannin compounds, flavonoids, alkaloids, terpenoids, and saponins which have antibacterial attributes; a concentration of 6.25% is counted as the minimum bactericidal concentration (MBC) of Streptococcus sanguinis. Aim: To compare the difference of antibacterial power of 6.25% cocoa peel extract (Theobroma cacao) and 2.5% NaOCl against Streptococcus sanguinis. Method: This research is an in vitro experimental laboratory with post-test only control group design. The diffusion method was used on Streptococcus sanguinis planted in tubes containing BHIB, then cultured on petri dishes containing nutrient agar and divided into 3 parts, namely 6.25% cocoa peel extract, 2.5% NaOCl, and negative controls, then each Petri dishes were given a paper disc that had been dripped by 0.01 ml of each ingredient, then incubated in an incubator for 2x24 hours at 37°C; the diameter of the inhibitory zone formed was then observed using a caliper. Results: The average diameter of the inhibition zone formed on 6.25% cocoa peel extract was 19.2000 mm and 2.5% NaOCl was 17.2813 mm against Streptococcus sanguinis. Conclusion: The antibacterial power of 6.25% cocoa peel extract (Theobroma cacao) is higher than 2.5% NaOCl against Streptococcus sanguinis.

scholarly journals Uji Daya Hambat Ekstrak Kulit Langsat (Lansium parasiticum) Terhadap Pertumbuhan Bakteri Enterococcus faecalis Secara In Vitro

2020 ◽  
Vol 8 (2) ◽  
pp. 70-74
Author(s):  
Andhini Ardi ◽  
Dedi Sumantri ◽  
Surma Adnan
Keyword(s):  
Enterococcus Faecalis ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Control Group ◽  
Fruit Peel ◽  
Control Group Design ◽  
Inhibition Effect ◽  
Facultative Anaerobic Bacteria ◽  
Peel Extract

Enterococcus faecalis is a bacteria that commonly found in secondary root canal infections. Enterococcus faecalis is a gram-positive, facultative anaerobic bacteria. Langsat (Lansium parasiticum) is a natural ingredient that contains secondary metabolites and has antibacterial ativity. The aim of this study was to examine the inhibition effect of langsat fruit peel extract (Lansium parasiticum) to the growth of Enterococcus faecalis. This was a laboratory experimental study with post-only control group design. Langsat fruit peel extract with 25%, 50%, 75%, and 100% concentration was using disc diffusion method on Mueller-Hinton Agar (MHA) and the inhibition zone was measured with a sliding caliper. The data were analyzed with Kruskal-Wallis test and Mann-Whithney test. The result of this study was langsat fruit peel extract with 25%, 50%, 75% concentration showed a inhibition zone, while at 100% showed no inhibition zone. The Kruskal-Wallis test showed that there are significant differences (p <0.05) between all groups. The conclusion was langsat fruit peel extract (Lansium parasiticum) have weak inhibition effect of the growth of Enterococcus faecalis bacteria. The inhibition zone of concentrations 25% : 2,20 mm;  50%: 0,94 mm; 75%: 0,36 mm and 100% : 0,00 mm.

scholarly journals The Antibacterial Effect of Ethanol Edamame Seeds (Glycine Max (L) Merril) Extract to E.coli Bacteria

2020 ◽  
Vol 6 (3) ◽  
pp. 137
Author(s):  
Diayu Putri Akhita ◽  
Edy Junaidi ◽  
Septa Surya Wahyudi
Keyword(s):  
Average Diameter ◽  
Inhibition Zone ◽  
Negative Control ◽  
The Body ◽  
Control Group ◽  
Control Group Design ◽  
Significant Difference ◽  
Post Test ◽  
The Times

Abstract Infectious diseases can occur in all parts of the body. One of the causes infection in humans is Eschericiae coli bacteria. Eschericiae coli is a rod-shaped bacteria, a gram negative bacteria, facultative aerobics and classified family member of Enterobacteriaceae from the Gammaproteobacteria class. Along the times, E.coli bacteria have resistent to some antibiotics. So we need a new alternative. There is a antibacterial substance in the isoflavon group contained in edamame. Genistein is a main isoflavon in edamame that have antiinflammation, antibacterial, and antioxidant effects. The purpose of this study was to determine is there any antibacterial effects in ethanol edamame seeds extract to E.coli bacteria. This study used a true experimental research design in vitro with a post test only control group design.  The average diameter results of the inhibition zone were analyzed using the Kruskal-Wallis method and obtained p = 0.001 which means there are significant differences in at least two groups. After that, the Mann Whitney post hoc test was conducted and a significant difference was found in the positive and negative control groups for all groups but there was no difference in the treatment group, both groups K1, K2 and K3 for all groups. Keywords : Edamame, Antibacterial, E.coli

scholarly journals The Difference of Antibacterial Power between Cocoa Peel (Theobroma Cacao L.) Extract 6% compared to Chlorhexidine Digluconate 2% Againts Streptococcus mutans (In vitro)

2021 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
Alissa Amanda ◽  
Tamara Yuanita ◽  
Galih Sampoerno
Keyword(s):  
Streptococcus Mutans ◽  
Theobroma Cacao ◽  
Inhibition Zone ◽  
Diffusion Method ◽  
Chlorhexidine Digluconate ◽  
Significant Difference ◽  
The Difference ◽  
Theobroma Cacao L ◽  
Peel Extract

Background: Before restoration, it is necessary to clean the cavity from the smear layer and residual bacteria such as Sreptococcus mutans using a 'gold standard' cavity cleanser, namely 2% Chlorhexidine digluconate (CHX), however CHX 2% has a disadvantage of having a toxic effect on fibroblasts, osteoblasts, myoblasts, odontoblast-like cells, Chinese hamster ovary cells, and buccal epithelial cells. The shortcomings of the 2% CHX triggered researchers to look for alternative cavity cleansers that are more biocompatible, namely cocoa peel extract because it contains of antibacterial compounds including alkaloids, flavonoids, tannins, saponins, and terponoids with a non-toxic 6% concentration. Purpose: To analyze the difference of antibacterial activity between cocoa peel extract with a concentration of 6% compared to chlorhexidine digluconate 2% against Streptococcus mutans. Methods: This research was an in vitro laboratory experimental study with the posttest only control group design which included two treatment groups, namely 6% cocoa peel extract and 2% CHX. This research was conducted using the inhibition zone diffusion method against S. mutans to see the antibacterial power of each sample. Results: There was a significant difference (p <0.05) in the mean diameter of the inhibition zone between 6% cacao peel extract, namely 11.5406 mm and CHX 2%, namely 13.2156 mm.  Conclusion: Chlorhexidine digluconate 2% has a greater antibacterial power than 6% cocoa peel extract (Theobroma cacao L.) against Streptococcus mutans. 

scholarly journals Perbedaan Daya Hambat Ekstrak Daun Sirih Hijau ( Piper betle L. ) dan Daun Sirih Merah ( Piper crocatum Ruiz & Pav ) terhadap Pertumbuhan Escherichia coli

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Tristika Aulia Syahrinastiti ◽  
Aziz Djamal ◽  
Lili Irawati
Keyword(s):  
Escherichia Coli ◽  
Inhibition Zone ◽  
Control Group ◽  
Piper Betle ◽  
Microbiology Laboratory ◽  
Control Group Design ◽  
Group Design ◽  
Post Test ◽  
Inhibition Zones ◽  
The Difference

AbstrakSirih hijau (Piper betle L.) dan sirih merah (Piper crocatum Ruiz & Pav) dipercaya memiliki khasiat mencegah penyakit infeksi saluran kemih yang disebabkan oleh Escherichia coli. Tujuan penelitian ini adalah untuk menjelaskan perbedaan daya hambat ekstrak daun sirih hijaudan daun sirih merah terhadap pertumbuhan Escherichia coli. Jenis penelitian ini adalah eksperimental dengan desain post test only control group. Penelitian dilakukan di laboratorium mikrobiologi Fakultas Kedokteran Universitas Andalas. Hasil penelitian adalah: 1. Efek daya hambat ekstrak daun sirih merah pada konsentrasi 2,5%, 5%, 7,5%, dan 10%, yaitu 0,6cm, 1,1cm, 1,2cm, dan 1,2cm; 2. Ekstrak daun sirih hijau tidak memiliki efek daya hambat pada konsentrasi 2,5%, 5%, 7,5%, dan 10%. Kesimpulan eksperimen ini adalah ekstrak daun sirih merah memiliki efek daya hambat lebih baik daripada ekstrak daun sirih hijau.Kata kunci: ekstrak daun sirih hijau, ekstrak daun sirih merah, escherichia coli, daerah bebas hambat AbstractGreen betel (Piper betle L.) and red betel (Piper crocatum Ruiz & Pav) are trusted of possessing an efficacy of preventing urinary tract infection caused by Eschericia coli. The objective of this study was to explain the difference of inhibition zones between the green betel and the red betel towards the growth of Eschericia coli. The type of this research was experimental study with post test only control group design. This research was carried out in Microbiology Laboratory, Faculty of Medicine Andalas University.The results of this research were: 1.The inhibition zones of red betel extract in concentration of 2.5%, 5%, 7.5%, and 10% were 0.6 cm, 1.1 cm, 1.2 cm, and 1.2 cm; 2. The extract of green betel had none of inhibition zones in concentration of of 2.5%, 5%, 7.5%, and 10%. In conclusion, the red betel extract has better inhibition zones than the green betel extrac.Keywords: green betel extract, red betel extract, eschericia coli, inhibition zone

scholarly journals The Difference Of Antibacterial Power Between Cocoa Peel (Theobroma cacao L.) Extract 6,25% and Chlorhexidine 0,2% Againts Streptococcus sanguinis

2019 ◽  
Vol 9 (1) ◽  
pp. 40
Author(s):  
Nila Murni Wulandari ◽  
Edhie Arif Prasetyo ◽  
Agus Subiwahjudi ◽  
Tamara Yuanita
Keyword(s):  
Theobroma Cacao ◽  
Antibacterial Properties ◽  
Inhibition Zone ◽  
Negative Control ◽  
Diffusion Method ◽  
Control Group ◽  
Control Group Design ◽  
Streptococcus Sanguinis ◽  
Theobroma Cacao L ◽  
Peel Extract

Background: Streptococcus sanguinis is a bacterium that can cause failures in root canal treatments due its ability to penetrate the dentinal tubules to a depth of 400 μm in just two weeks. Irrigation material is needed to stop the growth of this bacteria so that no bacteria can pass through by using chemicals, irrigation materials that are widely used such as Chlorhexidine 0,2% but still lack because it cannot be used as a single irrigation solution because its effectiveness will be reduced if it is related to protein and organic dentine matrix and low Ph saliva.Therefore, research is needed to find natural ingredient that can be an alternative such as Cocoa peel extract was chosen because it contains active compounds, in the form of saponins, tanins, alkaloids, flavonoids, and terpenoids that have been known to have antibacterial properties a concentration of 6,25% is used in accordance with the MKC of Streptococcus sanguinis. Aim: To compare the antibacterial power between cocoa peel extract (Theobroma cacao L.) 6,25% and Chlorhexidine 0,2% against Streptococcus sanguinis Method: This research is an experimental laboratory with a post-test only control group design. The diffusion method was used to determine the susceptibility of bacteria isolated from the material by planting the culture of Streptococcus sanguinis on the agar medium by swabbing the nutrient media which has been divided into 3 parts consisting of negative control, cocoa peel extract and Chlorhexidine, then each nurient media so that it is given a paper disk and 0.01ml liquid on each section. The diameter of the inhibition zone was observed after 2x24 hours using the calipers. Results: The average inhibitory zone that was formed using cocoa peel extract was 20,40 mm against Streptococcus sanguinis and Chlorhexidine was 18,36 against Streptococcus sanguinis. Conclusion: Cocoa peel extract (Theobroma cacao L.) 6,25% had higher anti-bacterial power compared to 0,2% Chlorhexidine against the growth of Streptococcus sanguinis.

scholarly journals Effectiveness of Chinese Leaf Extract and Leaf Plants (Jatropha Multifida L.) As Antibacterial to Bacterial Growth Staphylococcus Aureus In Vitro

2018 ◽  
pp. 29-33
Author(s):  
Dwi Anggita ◽  
Yusriani Yusriani ◽  
Dian Amelia Abdi ◽  
Vivin Desiani
Keyword(s):  
Staphylococcus Aureus ◽  
Leaf Extract ◽  
Average Diameter ◽  
Inhibition Zone ◽  
Positive Control ◽  
Diffusion Method ◽  
Leaf Extracts ◽  
The Difference ◽  
Jatropha Multifida

Jatropha multifida L. contains alkaloids, tannins, flavonoids, saponins and phenolic acids that differ from each part of the plant and the content of these substances is what makes L. multifida Jatropha has a function as an antibacterial so that the leaf extract and the gap of chinese distance ( Jatropha multifida L.) allegedly capable of inhibiting the growth of Staphylococcus aureus bacteria. The aim of this research was to know the effectivity of leaf extract and gum of Jatropha multifida L. to the growth of Staphylococcus aureus bacteria in vitro.Penelitian used true experimental post test design. Using disc diffusion method with concentration 25; 50; 75; and 100% v / v leaf and gum china distance. Positive control was used Clindamycin 5μg drip antibiotic paper disc. The data were analyzed descriptively. The result of the research showed the difference of different inhibition zone between treatments. In chinese leaf extracts showed different mean diameters, at concentrations of 25%, 50%, 75% with inhibit zone formed respectively 0 mm, 9.32 mm, and 17.48 mm and the highest inhibition zone at concentration of 100% with an average diameter of 22.24 mm. In the gap of chinese distance showed a different mean diameter, at concentrations of 25%, 50%, 75% with the inhibit zone formed respectively 16.08 mm, 18.15 mm, and 18.63 mm and the highest inhibition zone at a concentration of 100% with an average diameter of 21.91 mm. Clindamycin positive controls show an average inhibit zone of 23.31 mm. It was concluded that there was an effect of leaf extract and resin of chinese distance plant (Jatropha multifida L.) on growth of Staphylococcus aureus bacteria, and the best concentration was 100% concentration and almost closer to the inhibitory zone of Clindamycin antibiotics as positive control.

scholarly journals Uji daya hambat ekstrak buah pala (myristica fragrans Houtt) terhadap bakteri penyebab periodontitis porphyromonas gingivalis secara in vitro

e-GIGI ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Pricillia T. Kaawoan ◽  
Jemmy Abidjulu ◽  
Krista V. Siagian
Keyword(s):  
Porphyromonas Gingivalis ◽  
Inhibition Zone ◽  
Inhibitory Effect ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Myristica Fragrans ◽  
Post Test ◽  
Myristica Fragrans Houtt

Abstract: Periodontal disease is preceded by a buildup of plaque that contains a collection of bacteria. The most common bacteria found in plaques are Porphyromonas gingivalis that cause periodontitis. There are several ways to treat periodontitis inter alia the usage of natural materials. Nutmeg (Myristica fragrans Houtt) contains volatile oil, saponins, and alkaloids known as antibacterials. This study aimed to investigate the inhibitory effect of nutmeg extract on Porphyromonas gingivalis. This was an experimental laboratory study in vitro with a post test only control group design. The testing method used in this study was a modified method of Kirby-bauer. Nutmeg was extracted by using maceration method with ethanol 96%. Porphyromonas gingivalis bacteria were ordered from University of Hasanuddin Makassar and then were rejuvenated in the Laboratory of Microbiology Pharmacy FMIPA University of Sam Ratulangi Manado. The results showed that the average inhibitory zone of nutmeg extract was 13,5 mm. Conclusion: Nutmeg (Myristica fragrans Houtt) extract had an inhibitory effect on the Porphyromonas gingivalis bacteria.Keywords: nutmeg (Myristica fragrans Houtt), inhibition zone, periodontitis, Porphyromonas gingivalisAbstrak: Penyakit periodontal berawal dari penumpukan plak yang mengandung kumpulan bakteri. Bakteri yang paling banyak ditemukan yaitu bakteri Porphyromonas gingivalis yang menyebabkan penyakit periodontitis. Terdapat beberapa cara untuk mengobati periodontitis, salah satunya dengan penggunaan bahan alami. Pala (Myristica fragrans Houtt) memiliki kandungan minyak atsiri, saponin, dan alkaloida yang diketahui berefek antibakteri. Penelitian ini bertujuan untuk mengetahui adanya daya hambat ekstrak buah pala terhadap bakteri penyebab periodontitis Porphyromonas gingivalis. Jenis penelitian ini ialah eksperimental laboratorik secara in vitro dengan post test only control group design. Metode pengujian yang digunakan yaitu modifikasi Kirby-bauer menggunakan sumuran. Sampel buah pala diekstraksi dengan metode maserasi menggunakan pelarut etanol 96%. Bakteri Porphyromonas gingivalis yang digunakan dalam penelitian ini dikirim dari Universitas Hasanuddin Makassar yang telah diremajakan di Laboratorium Mikrobiologi Farmasi FMIPA Universitas Sam Ratulangi Manado. Hasil penelitian mendapatkan zona hambat ekstrak buah pala sebesar 13,5 mm. Simpulan: Ekstrak buah pala (Myristica fragrans Houtt) mempunyai daya hambat terhadap bakteri penyebab periodontitis Porphyromonas gingivalis.Kata kunci: pala (Myristica fragrans Houtt), zona hambat, periodontitis, porphyromonas gingivalis

scholarly journals ANTIFUNGAL EFFECTIVENESS OF CACAO BEAN SHELLS EXTRACT (Theobroma cocoa L.) ON TRICHOPHYTON RUBRUM GROWTH IN VITRO

Biomedika ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 65-71
Author(s):  
Chintya Mei Desia Hutasoit ◽  
Yuni Setyaningsih ◽  
Andri Pramono
Keyword(s):  
Trichophyton Rubrum ◽  
Diffusion Method ◽  
Control Group ◽  
Control Group Design ◽  
Antifungal Effect ◽  
Group Design ◽  
Post Test ◽  
Post Hoc ◽  
Theobroma Cocoa

ABSTRACTTrichophyton rubrum is the most common dermatophytosis etiology. The antifungal agent has several problems such as fungal resistance and therapy side effects. Cacao (Theobroma cocoa L.) bean shells extract contained flavonoids, alkaloids, and saponins which have an antifungal effect. This study aimed to test the in vitro cacao bean shells extract antifungal (especially: Trichophyton rubrum) effectiveness by agar well diffusion method. This was an experimental study with a post-test only control group design. This study used cacao bean shells extract concentration 25%, 50%, 75%, and 100%, ketokonazol as positive control, and aquadest as negative control. The average inhibition diameter of 25%, 50%, 75% and 100% cacao bean shells extract concentration were 10.65 mm, 18 mm, 26.92 mm, and 37.22 mm, respectively, while the ketoconazole inhibition diameter was 51.52 mm. Data were analyzed using the Kruskal-Wallis test and post hoc with Mann-Whitney. The results showed significant differences between each treatment group (p0.05). Cacao bean shells extract had an antifungal effect in inhibiting the growth of Tricophyton rubrum invitro.Keywords: Trichophyton rubrum, Cacao Bean Shells, Antifungal, Agar Well Diffusion Method,  ABSTRAKTrichophyton rubrum adalah penyebab paling umum dermatofitosis. Obat dermatofitosis (antijamur) memiliki beberapa masalah seperti resistensi dan efek samping terapi. Ekstrak cangkang biji kakao (Theobroma cocoa L.) mengandung flavonoid, alkaloid, dan saponin yang memiliki efek antijamur. Tujuan penelitian ini untuk menguji efektivitas antijamur (khususnya Trichophyton rubrum) ekstrak cangkang biji kakao secara in vitro dengan metode difusi agar. Penelitian ini merupakan penelitian eksperimental dengan post-test only control group design. Penelitian ini menggunakan konsentrasi ekstrak cankang biji kakao 25%, 50%, 75%, dan 100%, ketokonazol sebagai kontrol positif, dan aquadest sebagai kontrol negatif. Rata-rata diameter hambat konsentrasi 25%, 50%, 75% dan 100%  secara berturut-turut yaitu: 10,65 mm, 18 mm, 26,92 mm, dan 37,22 mm, sedangkan daya hambat ketoconazole adalah 51,52 mm. Data dianalisis menggunakan uji Kruskal-Wallis dan post hoc dengan Mann-Whitney. Hasil penelitian menunjukkan perbedaan yang signifikan antara masing-masing kelompok perlakuan (p 0,05). Ekstrak cangkang biji kakao memiliki efek antijamur dalam menghambat pertumbuhan Tricophyton rubrum invitro.Kata kunci: Trichophyton rubrum, Anti-jamur, Cangkang Biji Kaka, Metode Difusi Sumuran Agar

scholarly journals INHIBITORY ACTIVITY OF ULIN BARK (Eusideroxylon zwageri) EXTRACT TO Lactobacillus acidophilus

2021 ◽  
Vol 6 (2) ◽  
pp. 117
Author(s):  
Ina Rezki Rahmasari ◽  
I Wayan Arya Krishnawan Firdaus ◽  
Renie Kumala Dewi
Keyword(s):  
Lactobacillus Acidophilus ◽  
Inhibitory Activity ◽  
Inhibition Zone ◽  
Bark Extract ◽  
Control Group ◽  
Chlorhexidine Digluconate ◽  
Control Group Design ◽  
Significant Difference ◽  
Post Test ◽  
Eusideroxylon Zwageri

Background: Lactobacillus acidophilus is a bacterium  which plays a role in dental caries. It is believed as a pioneering bacterium in advanced caries and much likely to be isolated in dentin caries zone, resulting in the needed for tooth restoration. The use of 2% Chlorhexidine digluconate as cavity cleanser is recommended as an effort to prevent seconday caries but can cause side effects. One of the natural materials that can be used as a cavity cleanser is ulin bark extract (Eusideroxylon zwageri), a traditional medicine originally from Kalimantan, because it contains phenolic, flavonoid, tannin, alkaloid, saponin and terpenoid. Purpose: To discover the inhibitory activity of ulin bark extract on Lactobacillus acidophilus growth. Methods:  This was a true experimental laboratory and post test only with control group design, that used 20%, 40%, 60%, 80%, 100% concentrations of ulin bark extracts and  K(+) 2% Chlorhexidine digluconate. Difussion method was used to test inhibitory activity with 6 treatment groups and 4 replications, comprising a total of 24 samples. All groups were incubated for 24 hours at 37ºC temperature. The inhibition zone was measured using calipers. Results: The 20%, 40%, 60%, 80% and 100% concentration of ulin bark extracts and 2% Chlorhexidine digluconate had an average inhibition zone of 7.17 mm, 9.02 mm, 11.14 mm, 13.06 mm, 15.17 mm and 19.22 mm. One Way ANOVA and Post Hoc Bonferroni tests showed significant difference between all groups. Conclusion: Ulin bark extract can inhibit Lactobacillus acidophilus growth starting from 20%, 40%, 60%, 80% and 100% concentration.

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