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Bacteria are microorganisms that require adequate media and nutrients to grow and develop. The media commonly used to grow bacteria is Nutrient agar media, but the price of Nutrient agar media is quite expensive. Corn cobs are lignocellulosic wastes that contain nutrients that can meet the nutritional requirements of bacterial growth media. This study aims to investigate the viability of corn cobs as a cost-effective alternative to Nutrient agar media. Specifically, we explore the variance in bacterial colony growth when utilizing corn cobs as a growth medium for Escherichia coli and Staphylococcus aureus bacteria. Employing a true experimental design with a posttest-only control structure, we analyze the treatment's effects using the One Way ANOVA test and Independent Sample T-test. These statistical methods enable us to discern differences between groups utilizing corncob media with and without added sugar.Our findings reveal noteworthy insights into bacterial colony growth. For Escherichia coli, the average number of colonies on corncob media with sugar was 222 CFU/ml, on corncob media without sugar, it was 164 CFU/ml, and on Nutrient agar media, it reached 361 CFU/ml. In the case of Staphylococcus aureus, colonies on corncob media with sugar averaged 871 CFU/ml, on corncob media without sugar, they averaged 657 CFU/ml, and on Nutrient agar media, they reached 942 CFU/ml.Statistical analysis using the One Way ANOVA test for both Escherichia coli and Staphylococcus aureus demonstrated p-values <0.05, signifying significant differences in their growth on corncob media with sugar, corncob media without sugar, and Nutrient agar media. Furthermore, the Independent Sample T-test results for both bacterial strains yielded p-values <0.05, indicating dissimilar growth patterns on corncob media with sugar compared to corncob media without sugar.In conclusion, our study underscores significant disparities in the growth of Escherichia coli and Staphylococcus aureus bacteria among Nutrient agar media, corncob media with sugar, and corncob media without sugar. Notably, we observed a marked increase in bacterial colony counts on corncob media with sugar and corncob media without sugar.    

Nutrient Agar is a universal medium containing agar, meat extract, yeast extract and peptone. NA media is often made in large quantities, stored under sterile conditions, and then reheated when needed. Repeated heating can reduce the number of bacterial colonies that grow because the components that make up the media become damaged. This study aimed to determine the effect of repeated heating of NA (Nutrient Agar) media 4 times on the Total Plate Count (TPC) test results for Staphylococcus aureus and Escherichia coli bacteria. The number of bacteria that grew on the media with varying amounts of heating was calculated, and the results showed that repeated heating 4 times caused a decrease in the number of bacterial colonies that grew on the NA media. The ANOVA test gave a value of p = 0.000 for the two types of bacteria separately, which showed that there is a significant difference between the number of bacteria in varying amounts of media heating. This research concluded that repeated heating of NA (Nutrient Agar) media affects the TPC test results for Staphylococcus aureus and Escherichia coli.

Staphylococcus aureus infection  is one of the causes of increasing number of diseases and deaths. It is estimated that currently around 2-3% of the general population has MRSA in their bodies. People with MRSA on their bodies are estimated to have a 64% higher chance of dying. The purpose of this study was to determine the antibacterial activity of red guava leaves against Staphylocoocus aureus bacteria  and to determine the amount of inhibition of methanol extract from red guava leaves against the activity of Staphylocoocus aureus bacteria. This type of research is experimental research The object of this study is the inhibitory power of Staphylococcus aureus bacteria  in methanol extract of red guava leaves. The sample used in this study was methanol extract of red guava leaves. This research was conducted using maceration extraction method with the solvent used is methanol. The measurement results showed that red guava leaf methanol extract at concentrations of 25%, 50%, 75% and 100% had an inhibitory zone on the antibacterial activity of Staphylococus aureus. The greatest bland result at a concentration of 50% of 0.49 mm. The lowest inhibitory power is at a concentration of 75% of 0.26 mm.      

The use of antibiotics can cause drug resistance if their use is not appropriate, so alternative treatment from plants is needed, one of which is soursop leaves (Annona muricata L.). Chemical substances contained in soursop leaves can prevent development until they can kill bacteria, one of which is flavonoids. The purpose of this study was to determine whether soursop leaf methanol extract (Annona muricata L.) at concentrations of 25%, 50%, 75% can inhibit the growth of Staphylococcus aureus bacteria and can determine at what concentration soursop leaf extract (Annona muricata L.) can effectively inhibit Staphylococcus aureus. The simplisia extract was done by maceration strategy using methanol as a solvent. The antibacterial testing method uses the disc diffusion method and uses clindamycin as a positive control and distilled water as a negative control. The results showed that Annona muricata L. extract can provide antibacterial action at concentration variants of 25%, 50% and 75% which is characterized by the presence of transparent areas with an average diameter of 8.97mm, 11.36 mm and 13.3mm respectively with positive control with a diameter of 23.25 and negative control with a diameter of 0 mm. Soursop leaf methanol extract (Annona muricata L.) is able to suppress the growth of Staphylococcus aureus bacteria with the most effective concentration variant of 75%.    

Transparent soap is a variation of solid bar soap that not only functions to clean dirt but also has a scrubbing function. Transparent solid soap is one of the soap innovations that has become an attractive soap. Saffron also has antibacterial properties due to the presence of flavonoids, tannins and saponins. Flavonoids are compounds that can have anti-inflammatory, anticancer and antioxidant effects, because they can inhibit the formation of free radicals. It has been used traditionally to treat various ailments including depression, cardiovascular disease, menstrual disorders, asthma, insomnia, digestive ailments, bone pain and several other ailments. Saffron pistil juice is made by dissolving in CO₂-free distilled water. Phytochemical screening was carried out on saffron pistil extract. Saffron pistil juice is made in various soap formulas, namely formula I, formula II and formula III. The positive control used was chloramphenicol antibiotic and the negative control was DMSO. There were several tests carried out on Saffron pistil extract in addition to phytochemical screening, namely antibacterial testing on transparent soap with Saffron pistil extract as a soap additive. The results of phytochemical screening showed that the pistil of saffron (Crocus sativus L) contained secondary metabolites, namely: flavonoids, alkaloids, tannins, and saponins. And for the results of the antibacterial activity research also showed that the Saffron pistil extract against transparent soap which can be used as a soap additive, the antibacterial results had a strong inhibition at the average value of formula III which was 20.5 and formula II was 18.4 mm and formula I 16.1 mm, against Staphylococcus aureus bacteria.

The proliferation of imported used clothing trade is due to clothes sold having foreign brands at cheap prices so that people who want to stay fashionable prefer imported used clothes because they are considered more affordable. The Clinical Pathology Laboratory of Muhammadiyah University Surabaya stated that used clothing samples contained mold or yeast fungi, Staphylococcus aureus bacteria, Escherichia coli bacteria and HPV (Human Papilloma Virus). This study aims to investigate the regulations regarding the trade of secondhand clothing in Indonesia and explore the legal protection provided for consumers of secondhand clothing in the country. The study employed a normative juridical legal research method, utilizing both the statute approach and conceptual approach. It drew upon legal materials such as Law Number 8 of 1999, Law Number 36 of 2009, Law Number 7 of 2014, and Minister of Trade Regulation No. 18 of 2021. The initial finding of the research was that the importation of secondhand clothing in Indonesia has been prohibited under Minister of Trade Regulation No. 18 of 2021, Article 2, paragraph (3), while local secondhand clothing businesses are permitted based on the Indonesian Business Field Standard Classification (KBLI) with code 47742. Secondly, legal protection for secondhand clothing consumers in Indonesia has been regulated in Law Number 8 of 1999. One of the consumer rights that needs to be fulfilled in consumer protection is the right to compensation for losses suffered by consumers based on Article 4 number 8, Article 7 letter f, and Article 19 paragraph (1).

Introduction: Itch Leaves (Laportea decumana) is a medicinal plant that grows widely in eastern Indonesia, especially Maluku. This plant usually grows in humid areas, surrounded by or adjacent to sago trees, and near rivers. Local people usually use the leaves to treat various complaints such as pain, fatigue and joint and muscle pain, or as a muscle relaxant. Objective: of this research is to determine the secondary metabolite content of the ethanol extract of itchy leaves (Laportea decumana) and test the antibacterial activity of the ethanol extract of itchy leaves (Laportea decumana) against the growth of Staphylococcus aureus bacteria. Method: Used in this research was the Agar diffusion method with itchy leaf test material using concentrations of 60%, 65%, 70% and 75%, chloramphenicol as a positive control and distilled water as a negative control. Results: research shows that itchy leaf extract (Laportea decumana) at a concentration of 60% has an inhibition zone diameter of 15.5 mm, at a concentration of 65% the diameter of the inhibition zone is 20.5 mm, at a concentration of 70% it has 25 mm, while at a concentration of 75% it has The highest area of inhibition against Staphylococcus aureus is 29 mm. Itchy leaf extract (Laportea decumana) at a concentration of 75% has a strong inhibitory level against Staphylococcus aureus bacteria, namely with an inhibitory zone diameter of 29 mm. Conclusion: There are secondary metabolite compounds in the ethanol extract of itchy leaves (Laportea decumana) and antibacterial activity against the growth of Staphylococcus aureus bacteria.

Nanotechnology is currently growing rapidly due to its broad application in science and technology. Nanotechnology itself is a science based on nanoparticles, so a more environmentally friendly method is being developed, namely the "green synthesis" method using plant extracts as a bioreductor. Silver nanoparticles have been synthesized using extracts of bidara leaf as a reducing agent. The objective of this research was was to determine the synthesis of silver nanoparticles using bioreductors and their application as antibacterial agents using bidara leaf extract against Staphylococcus aureus bacteria. This research used the green synthesis method to produce silver nanoparticles. The bidara leaf extract used was divided into several concentrations, namely 1 mM, 2 mM, 3 mM and 4 mM. To characterize silver nanoparticles, UV-Vis and PSA spectrophotometers were used. Furthermore, the Kirby-Bauer method was used to test the antibacterial properties of silver nanoparticles against Staphylococcus aureus bacteria. The results of research that has been done show that the formation of silver nanoparticles is characterized by the emergence of maximum absorbance peaks in the wavelength range of 400-450 nm, while the PSA results at concentrations of 3 and 4µm showed nanoparticle sizes of 185 nm. Silver nanoparticles of bidara leaf extract with various concentrations of 1 mM, 2 mM, 3 mM and 4 mM have antibacterial activity that can inhibit the growth of Staphylococcus aureus bacteria with an average inhibition zone diameter of 13.0617 mm, 11.7333 mm, 9.05 mm and 13.19 mm. This shows that silver nanoparticles with bidara leaf extract have antibacterial properties.

ARI is an infectious disease that attacks one or more parts of the respiratory tract, starting from the nose (upper tract) to the alveoli (lower tract) including adnexal tissue, such as the sinuses, middle ear cavity and pleura. ISPA is a respiratory tract infection that lasts for 14 days. ARI can be caused by various causes such as bacteria, viruses, fungi and aspiration. Bacteria that cause ARI include Diplococcus Pneumoniae, Pneumococcus, Streptococcus Pyogenes Staphylococcus Aureus, Haemophilus Influenza, and others. Viruses that cause ARI include influenza, adenovirus, cytomegalovirus. Fungi that cause ARI include Aspergillus Sp, Candida Albicans Histoplasm, and others. Apart from being caused by bacteria, viruses and fungi, ISPA is also caused by aspiration such as food, motor vehicle fumes, fuel oil, amniotic fluid at birth, foreign objects (seeds), small plastic toys, and others. The occurrence of ISPA is certainly influenced by many factors, namely environmental conditions (air pollutants such as cigarette smoke and cooking fuel fumes, density of family members, house ventilation conditions, humidity, cleanliness, season, temperature), availability and effectiveness of health services and infection prevention measures. to prevent spread (vaccines, access to health care facilities, isolation room capacity), host factors (age, smoking habits, ability of the host to transmit infection, nutritional status, previous infections or simultaneous infections caused by other pathogens, general health conditions) and characteristics pathogen (mode of transmission, infectivity, virulence factors such as genes, number or dose of microbes).

Japanese papaya leaves (Cnidoscolus aconitifolius) contain active compounds such as flavonoids, tannins, saponins, alkaloids and terpenoids which have the potential to have antibacterial activity. The aim of this research is to determine the antibacterial activity of Japanese papaya leaves against Staphylococcus aureus bacteria. Extraction of Japanese papaya leaves has been carried out using the maceration method and 96% ethanol solvent. The antibacterial activity test used the agar diffusion method using a cylindrical plate. Sterile distilled water was used as a negative control while as a positive control the antibiotic ciprofloxacin was used. The concentrations of Japanese papaya leaf ethanol extract used in testing were 10%, 20%, and 30%. The research results showed that Japanese papaya leaf ethanol extract with a concentration of 30% had the widest inhibition zone diameter, namely 17.296 mm. Meanwhile, at a concentration of 20%, the average inhibitory zone diameter was 15,222 mm, and at a concentration of 10%, the average inhibitory zone diameter was 13,018 mm. These three concentrations were included in the strong category based on Greenwood classification.  

Nutrient agar media is a universal medium that can be used in bacterial sensitivity tests. Sensitivity testing is used to test the sensitivity of bacteria to a type of antibiotic. This test is instrumental in determining appropriate therapy for patients who experience recurrent or persistent infectious diseases. Nutrient Agar media is usually made in large quantities for time and energy efficiency. The media is used as needed, and the rest is stored 2-8oC in the refrigerator before being used again. This research aims to determine the effect of repeated heating of Nutrient Agar media on the sensitivity test results for Staphylococcus aureus and Escherichia coli bacteria. Tests were carried out on the first, second, third and fourth heating times. The results of statistical tests with Kruskal Wallis showed a sig value of <0.05, meaning there was a difference in sensitivity test results between media heated once, twice, three times, or four times for the two types of bacteria tested.

Basil leaves are very rich in nutritious substances. Among them are beta carotene, vitamin C, macro minerals (calcium, phosphorus, magnesium). This plant is included in the Lamiaceae family which contains various chemical compounds, including phenols, saponins, alkaloids, flavonoids, tannins, and essential oils. The benefits of basil have been widely applied in people's lives as traditional medicine, for example, basil leaves are used to treat, cough, colds and so on. Body odor can be caused by several factors such as genetic factors, psychological conditions, food factors, obesity factors and clothing materials used.One of the triggers of body odor due to bacterial infection, namely Staphyloccous aureus bacteria.This study aims to formulate deodorant spray ethanol extract of basil leaves, test the physical properties of deodorant spray preparations, and determine whether the preparation of deodorant spray ethanol extract of basil leaves can inhibit staphylococcus aureus bacteria. Physical tests were carried out on days 0 (after manufacture) and 7 with the results of the organoleptical physical test of the preparation having a distinctive odor of basil, brownish yellow in color, It has a pH of 4 which corresponds to the pH of the skin, and experiencing an increase in viscosity on day 7 examination. The antibacterial test results of formulations 1, 2, and 3 showed inhibition of the banteri.

Acne is a disease on the surface of the skin of the face, neck, chest, and back that appears when the oil glands in the skin are too active so that the skin pores will be clogged by excessive fat deposits. Guava leaves contain secondary metabolites, consisting of tannins, alkaloids, flavonoids, saponins. This study aims to identify the content of secondary metabolites in guava leaf extract (Psidium guajava L.), test the antibacterial activity of ethanol extract of guava leaves (Psidium guajava L.) against the growth of Propionibacterium acnes and Staphylococcus aureus bacteria, and analyze the comparison of the effectiveness of guava leaf extract (Psidium guajava L.) against the growth of the two test bacteria. This type of research is laboratory experimental. The methods used for this study: preparation of materials, extraction of samples by maceration method, phytochemical screening test, testing antibacterial activity using the pitting method and analyzing data. The screening test results of guava leaf extract (Psidium guajava L.) showed the presence of alkaloid, flavonoid, tannin and saponin compounds. The results of the inhibition test on guava leaf extract with a high concentration of 115% have the largest diameter of 17.5 mm against Staphylococcus aureus compared to Propionibacterium acnes bacteria with an inhibition diameter of 16 mm. The results of the Mann-Whitney statistical test showed a p-value of 0.077 so it can be concluded that there is no comparison of the effectiveness of guava leaf extract (Psidium guajava L.) against the growth of Propionibacterium acnes and Staphylococcus aures bacteria.

Folliculitis is a bacterial skin infection caused by Staphylococcus aureus and Streptococcus sp. If the surrounding tissue is also affected, it is called a furuncle. About 20% of individuals have S. aureus colonization, while S.aureus carriers are found in 60% of healthy individuals.

This study was conducted to determine the antimicrobial effectiveness of chemical compounds from the water fraction of leunca fruit. Leunca fruit extract was obtained by maceration, then the results of maceration were evaporated and then fractionated. Antimicrobial activity testing was carried out using the agar diffusion method against Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 and Candida albicans ATCC 01231. The concentration variations of leunca fruit water fraction used were 10%, 20%, 30%, 40%, and 50%. The results of the antimicrobial activity test of leunca fruit water fraction compounds obtained the average inhibition diameter of Staphylococcus aureus ATCC 25923 microbes respectively 7.5 mm; 8.3 mm; 8.8 mm; 9.5 mm; and 10.4 mm. On the microbe Escherichia coli ATCC 25922 consecutively 7.8 mm; 8.1 mm; 9.3 mm; 10 mm; and 11.4 mm. while on the microbe Candida albicans ATCC 01231 the diameter of the bland chemical compound of leunca fruit water fraction is only found in the 50% concentration variation with an average inhibition diameter of 9.1 mm. Based on the results obtained, it can be concluded that the water fraction of leunca fruit (Solanum Nigrum L.) has activity as an antimicrobial against Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922 and Candida albicans ATCC 01231 with the largest inhibition zone diameter shown in the 50% concentration variation.

Background: Diabetic ulcer is a complication of peripheral neuropathy in people with diabetes mellitus which often ends in disability or death. Proper handling of infection is closely related to the rational use of antibiotics to avoid the occurrence of resistance. The emergence of resistance to antibiotics has an effect on the risk of increasing infection status, increasing the length of stay in the hospital, the risk of amputation and even death. Objectives: This study aims to determine the type and percentage of bacteria present in diabetic ulcers and to test the sensitivity of antibiotics prescribed in diabetic patients with ulcers in the inpatient room of RSUD Kraton, Pekalongan Regency. Methods: The research model used was descriptive to describe the profile of bacteria and the sensitivity of antibiotics prescribed to bacterial findings from diabetic ulcer isolates in inpatients at Kraton Hospital, Pekalongan Regency. The research method was carried out by biochemical identification and sensitivity testing of the Kirby Bauer technique on 2 samples of diabetic patients with ulcer complications taken by total census during March-April 2022. Results: Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa were found with a percentage of 50% each. The sensitivity test showed that Ampicillin was resistant to Staphylococcus aureus, Ciprofloxacin was resistant to Enterobacter aerogenes and intermediate to Pseudomonas aeruginosa. The percentage of effectiveness of Meropenem and Metronidazole antibiotics had the highest sensitivity values, namely 100%, 50% Ampicillin and 25% Ciprofloxacin. Conclusion: From the research that has been done, it can be concluded that Ampicillin is resistant to Staphylococcus aureus, Ciprofloxacin is resistant to Enterobacter aerugenes, Ciprofloxacin intermediate is resistant to Pseudomonas aeruginosa, Meropenem and Metronidazole are sensitive to the three bacterial findings namely Staphylococcus aureus, Enterobacter aerogenes, Pseudomonas aeruginosa

Pumpkin (Cucurbita moschata) is an important vegetable because of its nutritional value and health benefits. This plant is a rich source of carotenoids, which are rich in water-soluble vitamins, phenolics, flavonoid polysaccharides, mineral salts, and vitamins, all of which are beneficial for health. Pumpkin fruit has a very thick and hard skin, so it can act as a barrier to the rate of respiration, the release of water through the evaporation process, and the entry of air that causes the oxidation process. The purpose of this study was to determine the antibacterial activity of pumpkin seed extract (curcubita moschata). ) against the inhibition of staphylococcus aureus bacteria by well diffusion method. This type of research is a true experimental laboratory using the well diffusion method. The ethanol extract of pumpkin seeds (curcubita moschata) which was tested using the well method was then divided into several concentrations including 10%, 15%, 20%, and 25%. On the NA media that has been made then smeared with Staphylococcus aureus bacteria which had been previously sterilized, then four wells were made in a petri dish after which pumpkin seed extract was added to each concentration. Chloramphenicol was used as a positive control as a positive control. It was then incubated at 37o for 24 hours, then the inhibition zone formed was then measured. The result of this research is pumpkin seed extract (curcubita moschata) has antibacterial activity in the presence of inhibition around the wells of each extract concentration. At a concentration of 10% extract with an inhibitory diameter of 19 mm, a concentration of 15% in an inhibitory diameter of 20 mm, a concentration of 20% in an inhibitory diameter of 21 mm and for a concentration of 15% with an inhibitory diameter of 24 mm, it can be concluded that the extract of pumpkin seeds (curcubita) moschata.) has antibacterial activity against Staphylococcus aureus.

Jackfruit leaves are one of the medical plants that have many benefits. In general, jackfruit leaves are known as animal feed, but behind their function as animal feed, jackfruit leaves have health benefits because jackfruit leaves contain antimicrobials including flavonoids, tannins, saponins that can dissolve in water and can work to damage cytoplasmic membranes and denature cell proteins bacteria. Staphylococcus aureus is a gram-positive bacterium and is arranged in clusters (like grapes). Some infectious diseases caused by these bacteria are impetigo, boils, acne, wound infections, toxic shock syndrome, and other types of pathogenic. This study was conducted to determine the effect of jackfruit leaf extract dissolved using 70% ethanol as a solvent on the growth of staphylococcus aureus bacteria. The method used is the maceration method for the phytochemical screening test, and the disc diffusion method for the antibacterial activity test. The results of the phytochemical screening contained secondary metabolite compounds in jackfruit leaves and for the results of the antibacterial activity test of jackfruit leaf ethanol extract against the growth of staphylococcus aureus bacteria there was antibacterial activity inhibition with high inhibition at 80% concentration with a diameter of 13mm.

Rumput laut atau alga (euceuma cottanii) telah dimanfaatkan penduduk pantai di Indonesia untuk bahan pangan dan obat-obatan. Negara kepulauan, Indonesia dapat memanfaatkan sumber daya perairan dengan maksimal untuk di jadi suatu produk farmasi. ,mengandung senyawa biokimia sebagai metabolik sekunder salah satunya sebagai aktivitas antibakti, Penilitian ini bertujuan untuk mengetahui aktivitas antibakteri ekstrak etanol pada Eucheuma Cottonii dapat menghambat bakteri Staphylococcus Aureus. Metode yang di gunakan yaitu difusi sumuran dan metode in nova. Pada penelitian ini dilakukan uji skrining fitokimia dan uji aktivitas antibakteri ekstrak rumput laut hijau (euceuma cottanii) dengan menggunakan pelarut etanol 70%. Ekstraksi rumput laut hijau (euceuma cottanii) dilakukan dengan menggunakan metode maserasi untuk mendapatkan ekstrak. Hasil uji skrining fitokimia ekstrak etanol 70% rumput laut hijau (euceuma cottanii) memiliki kandungan metabolit sekunder seperti : flavonoid dan steroid. Ekstrak rumput laut hijau (euceuma cottanii) mempunyai kemampuan menghambat pertumbuhan bakteri staphylococus aureus dengan diameter zona hambat terbesar yaitu pada kosentrasi 30% sebesar 19 mm, dan diameter yang terkecil pada kosentrasi 10% sebesar 15 mm. Maka dapat di Simpulkan bahwa Hasil uji skrining fitokimia ekstrak etanol 70% rumput laut hijau (euceuma cottanii) memiliki kandungan metabolit sekunder seperti : flavonoid dan steroid. Ekstrak rumput laut hijau (euceuma cottanii) mempunyai kemampuan menghambat pertumbuhan bakteri staphylococus aureus dengan diameter zona hambat terbesar yaitu pada kosentrasi 30% sebesar 19 mm, dan diameter yang terkecil pada kosentrasi 10% sebesar 15 mm.

Bunga telang (Clitoria ternatea L.) adalah salah satu flora khas yang berasal dari Ternate, Maluku dengan ciri kelopak bunga yang berwarna ungu, putih, merah muda, maupun biru. Bunga telang banyak dimanfaatkan sebagai obat tradisional sebab memberikan banyak manfaat bagi kesehatan manusia. Selain itu, bunga telang juga sering diaplikasikan pada produk pangan sebagai pewarna alami. Bunga telang kaya akan komponen-komponen bioaktif, seperti flavonoid, tannin, dan antosianin. Potensi bunga telang sebagai zat anti bakteri disebabkan oleh keberadaan komponen bioaktif pada bunga telang yang memiliki kemampuan untuk menghambat aktivitas biologis mikroorganisme. Ekstrak bunga telang dapat menghambat pertumbuhan bakteri Klebsiella pneumonia, Bacillus subtilis, Pseudomonas aeruginosa, Streptococcus agalactiae, Escherichia coli, Aeromonas hydrophila, Aeromonas formicans, Bacillus cereus, Salmonella typhi, Staphylococcus aureus, dan Proteus vulgaris. Ekstraksi bunga telang diperoleh dengan menggunakan metode maserasi. Metode maserasi mampu menghindari kerusakan senyawa-senyawa termolabil karena dilakukan pada temperatur rendah. Potensi bunga telang sebagai zat antimikroba banyak diterapkan di bidang pangan, baik dalam bentuk penambahan ekstrak pada produk pangan maupun mikrokapsul antosianin.