scholarly journals Phytochemical Screening and Antibacterial Test of Leaf Extract of Canar Susu (Smilax macrocarpa Blume) Against Eschercihia coli, Pseudomonas aeruginosa, and Staphylococcus epidermidis

2019 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Lela Lailatul Khumaisah ◽  
Vina Juliana Anggraeni ◽  
Muhamad Salman Fareza

Smilax is one of the genus Smilacaceae is widely used as a medicinal plant because it contains various secondary metabolites with some bioactivity, such as anti-inflammatory, antirheumatic, analgesic, antioxidant, anticancer and antibacterial. One species of Smilax that has not been studied and only grew in Indonesia is Smilax macrocarpa Blume (canar susu). Therefore, a preliminary study of phytochemicals and biological activities is required to encourage progress and novelty in science and to know its phylogenetics in Indonesia's biodiversity. The research was done by extraction method using maceration with methanol as a solvent. Simplicia characteristic, toxicity test with BSLT method, phytochemical screening according to Harborne method, and antibacterial activity test using microdilution against including Escherihia coli, Pseudomonas aeruginosa, and Staphylococcus epidermidis were performed to leaf extract of canar susu. The results obtained that methanol extract of canar susu leaves contains alkaloids, flavonoids, steroids, tannins, terpenoids, saponins, and glycosides. Water content, ash content, acid-soluble ash content, water sari content, and alcohol sari concentration 8.74%; 3.60%; 0.11%; 19.01% and 5.40% respectively. Toxicity results obtained LC50 680.07 ppm. Antibacterial activity test against E. coli has MIC 625 ppm, whereas in P. aeruginosa and S. epidermidis ATCC 12228 are 1.250 ppm. The MBC values for E. coli, P. aeruginosa, and S. epidermidis ATCC 12228 were 5,000 ppm. Based on this result known S. macrocarpa Blume is not potential as antibacterial, but potential as biopesticide according to toxicity result. 

2018 ◽  
Vol 1 (2) ◽  
pp. 135-143 ◽  
Author(s):  
Dwi Latifah Sari ◽  
Sudarmi Sudarmi ◽  
Popi Patilaya

Soursop (Annona muricata L.) has been used for generations by some communities in Indonesia to treat diseases. Soursop leaves are used as an alternative treatment for cancer, by boiling them in the water and consuming it. In addition to the treatment of cancer, soursop plant is also used for the treatment of skin diseases such as boils. This study aimed to determine the antibacterial activity of ethanol extract of soursop leaves of young and old against Staphylococcus aureus, determine the content of secondary metabolites, and find out the diameter of inhibitory young leaves and old leaves of soursop in inhibiting Staphylococcus aureus. Soursop leaves were extracted by maceration using ethanol 96%. The extract obtained was then carried out to phytochemical screening. Antibacterial activity test was conducted using disc the Kirby-Bauerdiffusion. This study used 6 concentrations of 500 mg/mL, 400 mg/mL, 300 mg/mL, 200 mg/mL, 100 mg/mL, 80 mg/mL, 60 mg/mL, 40 mg/mL, 20 mg/mL, 10 mg/mL and 1 mg/mL. A positive control used soursop leaf extract of young and old while a negative one used DMSO 10%. Based on phytochemical screening, ethanol extract of soursop leaves contained alkaloids, flavonoids, saponins, tannins, steroids/triterpenoids and glycosides. The antibacterial activity of ethanol extract of leaves of young soursop was higher in inhibitory diameter than the ethanol extract of old soursop leaves. It could be seen that a concentration of 500 mg/mL was equal to 10.87 mm and 8.68 mm; a concentration of 400 mg/mL was equal to 9.15 mm and 7.3 mm; a concentration of 300 mg/mL was equal to 8.34 mm and 6.30 mm; a concentration of 200 mg/mL was equal to 8.23 mm and 7.08 mm; a concentration of 100 mg/mL was equal to 6.32 mm and 6.18 mm, and a concentration of 80 mg/mL did not leave a diameter inhibitory to bacteria Staphylococcus aureus. Young soursop leaf ethanol extract was more effective than the old soursop one against Staphylococcus aureus.


Jurnal MIPA ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 101
Author(s):  
Esterlina Aldora Puluh ◽  
Hosea Jaya Edy ◽  
Jainer Pasca Siampa

Daun Alpukat memiliki kandungan antara lain saponin, alkaloid, flavonoid, polifenol, quersetin yang bersifat sebagai antibakteri.  Penelitian ini bertujuan untuk mendapatkan konsentrasi terbaik dari ekstrak etanol daun alpukat (Persea americana Mill.) yang diformulasikan sebagai sediaan masker gel peel off berdasarkan uji aktivitas antibakteri terhadap bakteri Staphylococcus epidermidis. Penelitian ini menggunakan metode ekperimental laboratorium. Formula sediaan masker gel peel off ekstrak daun Alpukat dibuat dengan variasi konsentrasi 0.1%; 0.15%; 0.2%; 0.25% dan 0.3%. Ekstrak tanaman daun alpukat diperoleh dengan cara maserasi menggunakan pelarut etanol 96%. Pengujian antibakteri dengan metode sumuran diameter zona hambat yang paling besar yaitu pada konsentrasi 0,3% dengan diameter zona hambat 3 mm ± 0,32 dan kemampuan daya hambat dikategorikan lemah. Dapat disimpulkan bahwa konsentrasi terbaik dari ekstrak etanol daun Alpukat (Persea americana Mill.) yang diformulasikan sebagai sediaan masker gel peel off yaitu pada konsentrasi 0.3% dan dikategorikan kemampuan daya hambat lemahAvocado leaves contains saponins, alkaloids, flavonoids, polyphenols, quercetin which are as antibacterial properties. This study aims to obtain the best concentration of ethanol extract of avocado leaves (Persea americana Mill.) which is formulated as a gel peel off mask preparation based on antibacterial activity test against Staphylococcus epidermidis bacteria. This study uses a laboratory experimental method. Avocado leaf extract peel off mask gel formula is made with a concentration variation of 0.1%; 0.15%; 0.2%; 0.25% and 0.3%. Avocado leaf extract is obtained by maceration using 96% ethanol solvent. Antibacterial testing with the largest inhibition zone diameter wells method is at a concentration of 0.3% with a diameter of inhibition zone 3 mm ± 0.32 and the ability of inhibition is categorized as weak. It can be concluded that the best concentration of ethanol extract of avocado leaves (Persea americana Mill.) Which is formulated as a gel peel off mask preparation is at a concentration of 0.3% and categorized as weak inhibitory ability


2019 ◽  
Vol 4 (3) ◽  
pp. 172
Author(s):  
Verry Andre Fabiani ◽  
Megawati Ayu Putri ◽  
Marhan Ebit Saputra ◽  
Della Puspita Indriyani

<p>Synthesis nanosilver from <em>pelawan</em> leaf extract <em>(Tristaniopsis merguensis)</em> has been carried out. The variables of this study were variations in the concentration of AgNO<sub>3</sub> 1 mM, 1.5 mM and 2 mM. Pelawan leaf extract acted as a bioreductor that converts Ag<sup>+</sup> to Ag<sup>0</sup>. The synthesis was carried out in a ratio of 1: 4 (opposition leaf extract: AgNO<sub>3</sub> solution) at 70 °C for 1.5 hours. The results of the UV-Vis analysis showed the maximum at the 1 mM; 1.5 mM; 2 mM AgNO<sub>3 </sub>concentration were 391 nm, 392 nm and 400 nm, respectively. XRD analysis explained that the resulting nanosilver was crystalline and according the Scherrer equation an average particle size was of 22.8 nm. The antibacterial activity test of nanosilver was carried out by disc method, nanosilver showed the existence of strong antibacterial activity against <em>E. coli</em> and <em>S. aureus</em> bacteria.</p><p>.</p>


2020 ◽  
Vol 16 (2) ◽  
pp. 105-111
Author(s):  
Restianti Restianti ◽  
Bimo Budi Santoso ◽  
Maria Ludya Pulung

Antibacterial activity test and screening of phytochemical of extract hexane, ethyl acetate  and methanol have been carried out. The extraction of the P.pellucida plants was carried out by the maceration method in stages based on the polarity of the solvent. Analysis of chemical compounds done with phytochemical screening test. Based on the identification of chemical compounds by phytochemical screening, hexane and ethyl acetate extract has been detected only in the presence of flavonoid compounds with moderate categories. Methanol  extract contains high-grade alkaloids and moderate flavonoid and tannin compounds. Antibacterial test using disffusion methods suggest that ethyl acetate and methanol extract have categorically strong antibacterial activity againts the S. aureus  of 14 mm and 16 mm respectively. Hexane extract and acetate ethyl have a strong inhibition to  E. coli  of 11 mm and 12 mm respectively. Methanol extract has a weak inhibition to bacteria E. coli  and a hexane extract has a weak inhibition to bacteria S. aureus.


2020 ◽  
Vol 7 (2) ◽  
pp. 75
Author(s):  
Amalia Khairunnisa ◽  
Nashrul Wathan ◽  
Mia Fitriana ◽  
Fadlilaturrahmah Fadlilaturrahmah ◽  
Nisriyati Fiddina

Nymphaea pubescens Willd telah diketahui mempunyai efek antibakteri, terutama pada biji dan daunnya. Tetapi sampai saat ini bagian bunga dari tanaman tersebut belum dilakukan pengujian aktivitas antibakteri. Tujuan dari penelitian ini untuk melakukan skrining fitokimia, uji aktivitas antibakteri dan penentuan konsentrasi hambat minimum (KHM) dari ekstrak metanol bunga N. pubescens terhadap S. aureus dan E. coli. Proses ekstraksi bunga N. pubescens dimaserasi menggunakan pelarut metanol dengan perbandingan 1: 4 b/v. Metode pengujian yang digunakan ada dua yaitu metode difusi untuk pengujian aktivitas antibakteri dan metode dilusi untuk pengukuran konsentrasi hambat minimum (KHM). Hasil skrining fitokimia didapatkan bahwa ekstrak metanol bunga N. pubescens mengandung senyawa golongan fenolik, saponin dan flavonoid. Hasil pengujian aktivitas antibakteri menunjukkan bahwa ekstrak metanol bunga N.pubescens mampu menghambat S. aureus (diameter hambat 10 ± 0,29 mm) dan E.coli (diameter hambat 10,2 ± 0,50 mm). Konsentrasi hambat minimum dari ekstrak metanol bunga N. pubescens terhadap S.aureus sebesar 12,5% dan terhadap E.coli sebesar 25%. Dapat disimpulkan bahwa ekstrak metanol bunga N. pubescens memiliki aktivitas sebagai antibakteri. Nymphaea pubescens Willd has known to have antibacterial effects, especially on the seeds and leaves. However, until now the flower of the plant has not been tested for antibacterial activity. The purpose of this study was to perform phytochemical screening, antibacterial activity test and determine the minimum inhibitory concentration (MIC) of the methanol extract of N. pubescens flowers against S. aureus and E. coli. The process of extracting N. pubescens flowers is macerated using methanol as a solvent with a ratio of 1: 4 w / v. There are two test methods used, namely the diffusion method for testing antibacterial activity and the dilution method for measuring the minimum inhibitory concentration (MIC). The results of phytochemical screening showed that the methanol extract of N. pubescens flowers contained phenolic compounds, saponins, and flavonoids. The results of the antibacterial activity test showed that the methanol extract of N.pubescens flowers was able to inhibit S. aureus (inhibition diameter 10 ± 0.29 mm) and E. coli (inhibitory diameter 10.2 ± 0.50 mm). The minimum inhibitory concentration of the methanol extract of N. pubescens flowers against S.aureus was 12.5% and against E. coli was 25%. It can be concluded that the methanol extract of N. pubescens flowers has antibacterial activityKeywords: Nymphaea pubescens, lotus flower, methanol extract, antibacterial


Author(s):  
Ida Duma Riris ◽  
Tita Juwitaningsih ◽  
Destria Roza ◽  
Marini Damanik ◽  
Albinus Silalahi

Suruhan Leaf (Paperomiapellucida L) is a weedy plant that is used by rural communities as herbal medicine. In this study, phytochemical tests have identified compounds contained in the ethyl acetate extract, then the toxicity test was carried out by the Brint Shrimp LethallytyTocycity (BSLT) method using Artemia Salina Leach shrimp larvae, an antibacterial activity test for bacteria: Bacillus cereus (ATCC) 11778), S. aureus (ATCC 25923), E. coli (ATCC 25922), S. saprophytic (ATCC 49907), Catsobacterfrendi (ATCC 18090), P.acne (ATCC 27853), Epidermis (ATCC 12228) with diffusion methods, various of concentration 1; 5; 10; 25% as control used chloramphenicol 30 mcg, the highest inhibitory zone at a concentration of 25% showed a strong antibacterial succession of 20.7; 11.1; 29.7; 15; 13.5; 10; 17.3 mm. The results of the identification of compounds in ethyl acetate extract are alkaloids, flavonoids, steroids, saponins, and tannins. The toxicity of LC50 is 71.28 ppm (toxic).


2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Praptiwi Praptiwi ◽  
DEWI WULANSARI ◽  
AHMAD FAHONI ◽  
NOTO HARNOTO ◽  
ROSSI NOVITA ◽  
...  

Abstract. Praptiwi, Wulansari D, Fahoni A, Harnoto N, Novita R, Alfridsyah, Agusta A. 2020. Phytochemical screening, antibacterial and antioxidant assessment of Leuconotis eugenifolia leaf extract. Nusantara Bioscience 12: 79-85. Traditionally, sitahe (Leuconotis eugenifolia (Wall. Ex G. Don) A.DC) has been used to maintain stamina by Aceh peoples, Indonesia. The use of L. eugenifolia mainly as a spice on a traditional cuisine “ie bu peudah”. This research was conducted to determine the phytoconstituents of L. eugenifolia leaf extracts, and to investigate their antioxidant potential using 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging and antibacterial activity against Staphylococcus aureus and Escherichia coli. Phytochemical screening was carried out using standard methods. L. eugenifolia leaves were extracted successively with n-hexane, dichloromethane, ethyl acetate, methanol, and water. Obtained extracts were tested qualitatively for antioxidant and antibacterial by the TLC-bioautography method, followed by quantitative analysis to determine the MIC and IC50 value using the microdilution method on 96-well microplate. The results showed that it contained alkaloids, flavonoids, steroids, triterpenoids, saponins, phenolics, and tannins. The highest levels of phenolic (259.0486 ± 0.1203 mg GAE/g extract) and flavonoids (84.6575 ± 0.0237 mg QE/g extract) were found in ethyl acetate extract, and dichloromethane, respectively. The antibacterial activity of n-hexane and dichloromethane extracts is moderate against E. coli, and weak against S. aureus. Ethyl acetate extract, methanol, and water extracts have very strong antioxidant activity. L. eugenifolia leaf extracts may be promising new antioxidant sources.


2020 ◽  
Vol 11 (3) ◽  
pp. 4857-4865
Author(s):  
Tekleweyni Tadege ◽  
Kidu Hintsa ◽  
Tesfay Weletnsae ◽  
Gopalakrishnan V K ◽  
Muthulingam M ◽  
...  

Acacia etbaica Schweinf belongs to the family Fabaceae widely distributed in Africa and various parts of this plant such as bark, leaves, flowers and roots are widely used as a folk medicine for curing of various ailments.This study was aimed to screen the phytoconstituents and evaluate the antibacterial activity of leaf extract of A. etbaica against selected multidrug resistant Enterobacteriaceae family. Leaves of A. etbaica were extracted with petroleum ether, chloroform, acetone, and ethanol by sequential soxhlet extraction. Phytochemical screening of organic leaf extract of A.etbaica was carried out for the detection of phytoconstituents accountable for antibacterial activity. In vitro antibacterial activities of A.etbaica leaf extracts against selected Enterobacteriaceae family gram‑positive bacteria such as (B.subtilis, E.faecalis,S.aureus)and gram-negative (E. coli, K. pneumonia, V. cholera) were evaluated by agar well diffusion. The antibacterial potential of acetone and ethanol leaf extracts of A.etbaica were determined by 96 well plate broth dilution assay. Among the tested organic leaf extracts, both acetone and ethanolic leaf extract of A.etbaica showed a potentially broad spectrum of in vitro antibacterial activity against tested multiple drug resistant Enterobacteriaceae family gram-positive pathogens such as B.subtilis, E. faecalis , and S.aureus and gram-negative bacterial strains E. coli, K. Pneumonia and V. Cholera with significant MIC values. The significant antibacterial activity of both acetone and ethanolic leaf extracts of A.etbaica was due to the subsistence of secondary metabolites phytoconstituents such as flavonoids and phenolic compounds.


2017 ◽  
Vol 1 (2) ◽  
pp. 48-60
Author(s):  
A.G. Salmanov ◽  
A.V. Rudenko

Мета роботи — вивчити резистентність до антибіотиків бактеріальних збудників інфекцій сечових шляхів (ІСШ), виділених у пацієнтів урологічного стаціонару в м. Києві. Матеріали і методи. Досліджено 1612 штамів бактерій, виділених із сечі хворих з ІСШ (цистит, уретрит, пієлонефрит), госпіталізованих в урологічне відділення ДУ «Інститут урології НАМН України» у м. Києві протягом 2016 р. Серед пацієнтів переважали жінки — 1201 (74,5 %). Вік хворих становив від 17 до 74 років. Для збору даних використано медичну документацію лікарні. Мікробіологічні дослідження виконано у лабораторії мікробіології ДУ «Інститут урології НАМН України». Аналізували результати культурального дослідження зразків сечі, зібраних за наявності клінічних ознак ІСШ. Дослідження клінічного матеріалу та інтерпретацію отриманих результатів проводили загальноприйнятими методами. Вивчено чутливість уропатогенів до 31 антибіотика дискодифузійним методом відповідно до рекомендацій Інституту клінічних та лабораторних стандартів США (Clinical and Laboratory Standards Institute (CLSI)). Результати та обговорення. Аналіз мікробного спектра сечі виявив домінування серед уропатогенів штамів Escherichia coli (32,0 %), Enterococcus faecalis (19,5 %), Klebsiella pneumoniae (10,9 %), Staphylococcus epidermidis (8,9 %), S. haemolyticus (6,5 %) та Pseudomonas aeruginosa (6,4 %). Частка Enterococcus faecium, Enterobacter aerogenes і Streptococcus viridans становила відповідно 2,5, 2,2 і 1,6 %, Enterobacter cloacae, Klebsiella oxytoca, Acinetobacter baumannii, Proteus vulgaris та Providencia rettgeri — менше 1,0 %. У більшості випадків (69,7 %) мікроорганізми виділено у монокультурі, у решті випадків — у мікробних асоціа- ціях. Високу резистентність до тестованих антибіотиків виявили штами E. aerogenes (45,1 %), E. cloacae (45,7 %), E. faecium (40,9 %), E. faecalis (40,7 %), E. coli (39,9 %), P. aeruginosa (34,0 %), K. pneumoniae (28,6 %). Найбільш активними до уропатогенів були іміпенем (E. coli — 87,6 %, P. aeruginosa — 75,7 %, E. cloacae — 67,3 %, E. aerogenes — 72,6 %, K. pneumoniae — 93,2 %), меропенем (E. coli — 89,1 %, P. aeruginosa — 76,7 %, K. pneumoniae — 82,6 %), лефлоцин (E. coli — 74,5 %, ентерококи — 78,7 %, P. aeruginosa — 76,7 %, E. cloacae — 73,9 %, E. aerogenes — 80,4 %, K. pneumoniae — 83,5 %), амоксицилін/клавуланат (ентерококи — 84,6 %), фурагін (ентерококи — 82,6 %), цефоперазон (K. pneumoniae — 89,2 %, P. aeruginosa — 73,8 %), цефтріаксон (K. pneumoniae — 80,1 %). Висновки. Антибіотикорезистентність збудників ІСШ — важлива терапевтична проблема. Найбільшою активністю до уропатогенів характеризуються іміпенем, меропенем, лефлоцин, амоксицилін/ клавуланат, фурагін, цефоперазон, цефтріаксон, які можна розглядати як препарат вибору для призначення стартової терапії ІСШ. Необхідно здійснювати постійний моніторинг за резистентністю до дії антибіотиків. Політику використання антибіотиків у кожному стаціонарі слід визначати залежно від локальних даних щодо резистентності до протимікробних препаратів.


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