scholarly journals Identifikasi Bakteri Escherichia coli Susu Kedelai Murni di Pasar Jodoh Kota Batam

2021 ◽  
Vol 7 (1) ◽  
pp. 25-30
Author(s):  
Sri Hainil ◽  
Trie Yuni Elfasyari ◽  
Rofina Intan Sulistya
Keyword(s):  
Escherichia Coli ◽  
The Body ◽  
National Standard ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Soy Milk ◽  
Normal Flora ◽  
Healthy Human ◽  
Probable Number ◽  
Escherichia Coli Bacteria

Pure soy milk is a highly nutritious drink; in general, pure soy milk contains excellent content for the body in the form of protein, iron, phosphorus, carbohydrates, fat, provitamin A and B vitamins. Causing pure soy milk to contain or be contaminated with microorganisms. one of the microorganisms found in drinks or water is the Coliform bacteria. An example of Coliform bacteria is Escherichia coli. Escherichia coli is a bacterium that lives in the human intestine; these bacteria live as normal flora or can be called a collection of microorganisms, naturally present in normal and healthy human bodies. The research objective was to determine the presence or absence of Escherichia coli in pure soy milk sold in Jodoh Market, Batam City. This study uses the Most Probable Number (MPN) method. The results of the study on 10 samples of pure soy milk A, B, C, D, E, F, G, H, I, J and 2 samples of soy milk branded K, and L contained coliform bacteria, and there were 6 Escherichia coli bacteria in soy milk samples. Pure A, B, C, D, G, and on samples of soy milk branded K. The results of the examination of 12 samples of soy milk were found not to meet the requirements of the Indonesian National Standard (INS 01 – 3830 – 1995).

IDENTIFIKASI BAKTERI Escherichia coli PADA MINUMAN TEH KEMASAN INDUSTRI RUMAH TANGGA DI KELURAHAN SUNGAI DAMA DAN SELILI MENGGUNAKAN METODE MOST PROBABLE NUMBER (MPN)

2017 ◽  
Vol 3 (1) ◽  
pp. 59
Author(s):  
Fitri Handayani ◽  
Reksi Sundu ◽  
Dawia Dawia
Keyword(s):  
Escherichia Coli ◽  
Fast Food ◽  
Sampling Method ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Probable Number ◽  
The Public ◽  
Descriptive Research ◽  
Escherichia Coli Bacteria ◽  
Beverage Packaging

Tea beverage packaging is a popular fast food beverage because it has a variety of flavors that are in great demand by the public. Presentation of packaged tea beverages is mostly found in roads that may be contaminated by Escherichia coli bacteria. This study aims to identify Escherichia coli bacteria in packaged tea drinks circulating in the rivers of Kelurahan Selili. This research is a descriptive research. The sample used is packaged tea drink taken in two subdistricts of Samarinda ilir namely Selili urban village and Sungai Dama by using Purposive Sampling method of 10 samples. Sample tests include presumtive test, confirmative test and completed test. The LB (Lactose Broth) assay test was used to detect early presence of Coliform bacteria, BGLBB (Brillian Green Lactose Bile Broth) as a detector of the specification of the presence of Coliform bacteria and completed test using EMBA (Eosin Methylene Blue Agar) as Escherichia coli. The results of this study were 7 samples of 10 samples tested containing Escherichia coli.

scholarly journals GREEN SYNTHESIS OF MAGNETIC IRON NANOPARTICLES USING MEDICINAL PLANT TRIDAX PROCUMBENS LEAF EXTRACTS AND ITS APPLICATION AS AN ANTIMICROBIAL AGENT AGAINST E. COLI

2020 ◽  
pp. 34-39
Author(s):  
YOJANA Y. PATIL ◽  
VAISHNVI B. SUTAR ◽  
ARPITA P. TIWARI
Keyword(s):  
Escherichia Coli ◽  
Magnetic Nanoparticles ◽  
Iron Nanoparticles ◽  
Most Probable Number ◽  
Leaf Extracts ◽  
Probable Number ◽  
Gram Negative ◽  
E Coli ◽  
Tridax Procumbens ◽  
Escherichia Coli Bacteria

Objective: The present study was aimed at the biological synthesis of magnetic iron nanoparticles by using the plant extract of Tridax procumbens and also to study their antimicrobial property against gram-negative bacteria (Escherichia coli). Methods: The synthesis of magnetic iron nanoparticles was carried out by the co-precipitation method using biological methods like plant extract as reducing agent and capping agents are biocompatible and non-hazardous. These nanoparticles were characterized by UV-Visible spectroscopy, XRD (X-Ray Diffraction), and SEM (Scanning Electron Microscope). As well as antibacterial activity of the nanoparticles was carried out by agar well diffusion method and Most Probable Number (MPN) method against gram-negative E. coli (Escherichia coli) bacteria. Results: The average crystallite size of Magnetic Nanoparticles (MNPs) was found to be 72 nm by X-ray diffraction. The optical absorption band at wavelengths of 240 nm and 402 nm was obtained from the UV Visible spectrum. Spherical shape morphology was observed in SEM studies. The antibacterial assay clearly expressed that E. coli showed a maximum zone of inhibition (15±0.15 mm) at 2 mg/ml and 1 mg/ml concentration was found for Magnetic Nanoparticles. In the Most Probable Number (MPN) test it is seen that the bacterial count is reduced after adding synthesized NPs into the water sample. Conclusion: The results of the present study conclude that the Magnetic Nanoparticles synthesized using Tridax procumbens leaf extracts is found to be stable and show good antibacterial activity against gram-negative (Escherichia coli) bacteria.

scholarly journals Escherichia coli O157:H7 in Drin Prevalence of Escherichia coli O157:H7 in Drink from Different Food Premises in Kota Samarahan Sarawak

2019 ◽  
Vol 2 (2) ◽  
pp. a13-19
Author(s):  
ELEXSON NILLIAN ◽  
AMIZA NUR ◽  
DIYANA NUR ◽  
AMIRAH ZAKIRAH ◽  
GRACE BEBEY
Keyword(s):  
Escherichia Coli ◽  
Drinking Water ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Plain Water ◽  
Escherichia Coli O157 ◽  
Probable Number ◽  
E Coli ◽  
Preventive Actions ◽  
Stx1 Gene

Contamination of drinks with E. coli O157:H7 served in food premises such as restaurants can cause haemorrhagic colitis and haemolytic uremic syndrome to humans. The presence or absence of faecal pathogen was demonstrated using coliform group as indicator microorganisms. Therefore, this study was conducted to detect the presence of E. coli O157:H7 in drinking water from food restaurant premise in Kota Samarahan and Kuching to ensure safe and potable drinking water is served to the consumer. A total of thirty (n=30) drink samples including six types of each of the samples are cold plain water, iced tea, iced milo, syrup and iced milk tea. Most Probable Number (MPN) procedure was used in this study to enumerate the MPN values of coliform bacteria in each drink collected. A total of 53.33% (16/30) of the drink samples showed positive E. coli detection. Then, the PCR assay showed 6.25% (one out of 16 isolates) samples were positive and carried stx1 gene produced by E. coli O157:H7 in iced milo sample types. This study showed the drinks collected from food premises was contaminated with faecal contamination, which was not safe to drink by the consumer. Therefore, preventive actions should be taken to prevent foodborne illness outbreak in future

scholarly journals Comparison of the Compact Dry EC with the Most Probable Number Method (AOAC Official Method 966.24) for Enumeration of Escherichia coli and Coliform Bacteria in Raw Meats: Performance-Tested MethodSM 110402

2006 ◽  
Vol 89 (1) ◽  
pp. 100-114 ◽  
Author(s):  
Hidemasa Kodaka ◽  
Shingo Mizuochi ◽  
Hajime Teramura ◽  
Tadanobu Nirazuka ◽  
David Goins ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Water Soluble ◽  
Test Method ◽  
Gelling Agent ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Official Method ◽  
Probable Number ◽  
E Coli ◽  
Raw Meats

Abstract Compact Dry E. coli/Coliform Count (EC) is a ready-to-use test method for the enumeration of Escherichia coli and coliform bacteria in food. The plates are presterilized and contain culture medium and a cold water-soluble gelling agent. The medium should be rehydrated with 1 mL diluted sample inoculated onto the center of the self-diffusible medium, allowing the solution to diffuse by capillary action. The plate can be incubated at 35C for 2024 h and the colonies counted without any further working steps. The Compact Dry EC medium plates were validated as an analysis tool for determining colony-forming units (CFU) of E. coli and coliform bacteria from a variety of raw meats using 5 different types of raw meats. The performance tests were conducted at 35C. In all studies performed, no apparent differences were observed between the Compact Dry ECmethod and theAOAC Official Method 966.24 results. For the accuracy claim (n = 75), a correlation factor of r2 = 0.93 (E. coli) and r2 = 0.93 (coliform bacteria) could be assigned, as stated in the application for Performance-Tested MethodSM.

Comparison of the SimPlate Coliform and Escherichia coli Test with Petrifilm, Three-Tube MPN, and VRBA + MUG Methods for Enumerating Coliforms and E. coli in Food

1998 ◽  
Vol 61 (4) ◽  
pp. 444-449 ◽  
Author(s):  
D. E. TOWNSEND ◽  
R. L. IRVING ◽  
A. NAQUI
Keyword(s):  
Escherichia Coli ◽  
Correlation Coefficients ◽  
Raw Milk ◽  
Food Samples ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Additional Food ◽  
Suitable Alternative ◽  
Probable Number ◽  
E Coli

SimPlate for coliforms and Escherichia coli (CEc) is a new method for the detection and quantification of coliforms and E. coli in food. Internal validation of the method was carried out at IDEXX Laboratories (Westbrook, ME) with 180 food samples representing a variety of different food matrices and compared against three-tube MPN (most probable number), VRBA (violet red bile agar) + MUG, and Petrifilm (E. coli count) methods. SimPlate CEc was highly correlated with each of these methods for the quantification of coliform bacteria (r ≥ 0.90). An insignificant number of food samples were found to contain E. coli; therefore, no meaningful correlation data could be generated. Four hundred forty-four additional food samples were tested at five collaborating laboratories for the presence of coliforms and E. coli using SimPlate CEc and either VRBA + MUG or Petrifilm (E. coli count). Regression analysis of data from SimPlate for CEc versus Petrifilm E. coli count plates generated correlation coefficients (r) of at least 0.89 for total coliforms and at least 0.90 for generic E. coli. Correlation coefficients between SimPlate for CEc and VRBA + MUG data were at least 0.90 for coliforms and at least 0.86 for E. coli. SimPlate for CEc demonstrated better recovery of E. coli than Petrifilm when high populations of bacteria were present. E. coli was not detected in 20 of 50 (40%) raw milk samples tested by the Petrifilm method due to the presence of interfering coliform and noncoliform bacteria. It is concluded that SimPlate for CEc is a suitable alternative for determining numbers of coliform bacteria and E. coli in food.

scholarly journals Kualitas Sumber Air Minum Masyarakat Kampung Yokiwa Distrik Sentani Timur Secara Bakteriologis

2018 ◽  
Vol 1 (2) ◽  
pp. 65-71
Author(s):  
Ima F. Patasik ◽  
Daniel Lantang
Keyword(s):  
Escherichia Coli ◽  
Klebsiella Pneumoniae ◽  
Water Samples ◽  
Maximum Level ◽  
Quality Standard ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Number Series ◽  
Probable Number ◽  
Biology Laboratory

The aim of this study was to observe the presence of coliform bacteria and the level of contamination in outlet water of Sentani lake, especially in Jaifuri river. The study was done from Januari-April 2009 in 3 sampling areas: outlet of the lake (A), in between outlet and the river (B), and in Jaifuri river (C). Samples then be analized in Biology Laboratory, FMIPA University of Cenderawasih using MPN (Most Probable Number) series 3-3-3. Furthermore, the result then compared with the quality standard of dringking water (Peraturan Menteri Kesehatan RI No 416/MENKES/PER/IX1990). The result showed that coliform of sample A was 9.300 MPN/ 100 ml, sample B was 4.300 MPN/100 ml and sample C was 24.000 MPN/ 100 ml. That condition was above the maximum level of contamination of dringking water (0/100 ml). In addition, the biochemical test showed that Escherichia coli and Klebsiella pneumoniae were found in that water samples.  Key words: Coliform, Escherichia coli, outlet of Sentani lake, Jaifuri river, East Sentani. 

Incidence and Behavior of Salmonella and Escherichia coli on Whole and Sliced Zucchini Squash (Cucurbita pepo) Fruit

2010 ◽  
Vol 73 (8) ◽  
pp. 1423-1429 ◽  
Author(s):  
JAVIER CASTRO-ROSAS ◽  
EVA MARÍA SANTOS LÓPEZ ◽  
CARLOS ALBERTO GÓMEZ-ALDAPA ◽  
CESAR ABELARDO GONZÁLEZ RAMÍREZ ◽  
JOSÉ ROBERTO VILLAGOMEZ-IBARRA ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Inoculum Level ◽  
Probable Number ◽  
Initial Inoculum ◽  
E Coli ◽  
Thermotolerant Coliforms ◽  
Salmonella Serotypes ◽  
And Behavior

The incidence of coliform bacteria (CB), thermotolerant coliforms (TC), Escherichia coli, and Salmonella was determined for zucchini squash fruit. In addition, the behavior of four serotypes of Salmonella and a cocktail of three E. coli strains on whole and sliced zucchini squash at 25 ± 2°C and 3 to 5°C was tested. Squash fruit was collected in the markets of Pachuca city, Hidalgo State, Mexico. CB, TC, E. coli, and Salmonella were detected in 100, 70, 62, and 10% of the produce, respectively. The concentration ranged from 3.8 to 7.4 log CFU per sample for CB, and <3 to 1,100 most probable number per sample for TC and E. coli. On whole fruit stored at 25 ± 2°C or 3 to 5°C, no growth was observed for any of the tested microorganisms or cocktails thereof. After 15 days at 25 ± 2°C, the tested Salmonella serotypes had decreased from an initial inoculum level of 7 log CFU to <1 log, and at 3 to 5°C they decreased to approximately 2 log. Survival of E. coli was significantly greater than for the Salmonella strains at the same times and temperatures; after 15 days, at 25 ± 2°C E. coli cocktail strains had decreased to 3.4 log CFU per fruit and at 3 to 5°C they decreased to 3.6 log CFU per fruit. Both the Salmonella serotypes and E. coli strains grew when inoculated onto sliced squash: after 24 h at 25 ± 2°C, both bacteria had grown to approximately 6.5 log CFU per slice. At 3 to 5°C, the bacterial growth was inhibited. The squash may be an important factor contributing to the endemicity of Salmonella in Mexico.

ColiComplete® Substrate-Supporting Disc Method for Confirmed Detection of Total Coliforms and Escherichia coli in All Foods: Comparative Study

1994 ◽  
Vol 77 (1) ◽  
pp. 58-63 ◽  
Author(s):  
Philip T Feldsine ◽  
Maria T Falbo-Nelson ◽  
David L Hustead
Keyword(s):  
Escherichia Coli ◽  
Comparative Study ◽  
Total Coliform ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Probable Number ◽  
Total Coliforms ◽  
E Coli ◽  
Total Coliform Bacteria ◽  
Better Than

Abstract The ColiComplete® substrate-supporting disc (SSD) method for simultaneous confirmed total coliform count and Escherichia coli determination in all foods was compared with the AOAC most probable number (MPN) methods 966.23 and 966.24. In this comparative study, 20 water and food types were analyzed; 7 of these foods were naturally contaminated with coliform bacteria, 6 food types were naturally contaminated with E. coli, and the remaining foods were inoculated with coliform bacteria and/or E. coli. Data were analyzed separately for total coliform bacteria and for E. coli. Mean log MPN counts were determined by the SSD method and the appropriate AOAC MPN procedure. Results were then analyzed for mean log MPN differences and variance, according to methods described by AOAC INTERNATIONAL Results for both total conforms and E. coli indicate that the SSD method is equivalent to or better than AOAC MPN methods 966.23 and 966.24.

scholarly journals Comparison of Colilert-18 with miniaturised most probable number method for monitoring of Escherichia coli in bathing water

2015 ◽  
Vol 14 (1) ◽  
pp. 121-131 ◽  
Author(s):  
Ananda Tiwari ◽  
Seppo I. Niemelä ◽  
Asko Vepsäläinen ◽  
Jarkko Rapala ◽  
Seija Kalso ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
False Negative ◽  
Reference Method ◽  
Water Quality Monitoring ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Probable Number ◽  
E Coli ◽  
Negative Results ◽  
Bathing Water

The purpose of this equivalence study was to compare an alternative method, Colilert-18 Quanti-Tray (ISO 9308-2) with the European bathing water directive (2006/7/EC) reference method, the miniaturised most probable number (MMPN) method (ISO 9308-3), for the analysis of Escherichia coli. Six laboratories analysed a total of 263 bathing water samples in Finland. The comparison was carried out according to ISO 17994:2004. The recovery of E. coli using the Colilert-18 method was 7.0% and 8.6% lower than that of the MMPN method after 48 hours and 72 hours of incubation, respectively. The confirmation rate of presumptive E. coli-positive wells in the Colilert-18 and MMPN methods was high (97.8% and 98.0%, respectively). However, the testing of presumptive E. coli-negative but coliform bacteria-positive (yellow but not fluorescent) Colilert-18 wells revealed 7.3% false negative results. There were more false negatives in the naturally contaminated waters than in the samples spiked with waste water. The difference between the recovery of Colilert-18 and the MMPN method was considered not significant, and subsequently the methods are considered as equivalent for bathing water quality monitoring in Finland. Future bathing water method equivalence verification studies may use the data reported herein. The laboratories should make sure that any wells showing even minor fluorescence will be determined as positive for E. coli.

scholarly journals Contamination of Escherichia coli Drinking Water Refills on Drinking Water Depots in Malang City

2019 ◽  
Vol 7 (1) ◽  
pp. 9
Author(s):  
Wiwik Kusmawati ◽  
Lia Rahayu
Keyword(s):  
Escherichia Coli ◽  
Water Quality ◽  
Drinking Water ◽  
Random Sampling ◽  
Simple Random Sampling ◽  
Coliform Bacteria ◽  
Most Probable Number ◽  
Probable Number ◽  
The City ◽  
Maximum Limit

Data from the Malang City Health Office shows the increasing number of refill drinking water depots in the city of Malang until 2013 there were 163 drinking water depots scattered in each Malang Subdistrict. The purpose of this study was to determine the contamination of Escherichia coli refill drinking water in drinking water depots in Malang. The samples taken were 20 refill drinking water depots in Malang. Sampling is done by simple random sampling. Escherichia coli examination using the Most Probable Number Test. Of the 20 samples tested, 2 samples met the requirements of drinking water quality according to PERMENKES and 18 other samples containing the number of coliform bacteria exceeding the maximum limit of 0 per 100 ml of water. There were Escherichia coli in 10 samples while 8 other samples contained other coliform bacteria.

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