scholarly journals Uji Angka Lempeng Total dan Kontaminan Koliform pada Susu Kedelai Bermerek yang Beredar di Kota Denpasar

2021 ◽  
Vol 9 (1) ◽  
pp. 141
Author(s):  
Michael Jordi Theofanny ◽  
Ida Bagus Wayan Gunam ◽  
Ni Putu Suwariani
Keyword(s):  
National Standard ◽  
Plate Count ◽  
Most Probable Number ◽  
Soy Milk ◽  
Probable Number ◽  
Plate Count Agar ◽  
Total Plate Count ◽  
Sample Testing ◽  
Good For ◽  
Legal Product

This research aimed to testing total plate count and coliform contaminant on legal product soy milk sold in Denpasar city is qualified to Indonesian National Standard (SNI) and safe to consumption. Soy milk has high nutrition and good for growth microorganisms. Microorganisms in soy milk is good for health but be worried have a dangerous microorganisms. Samples of soy milk based on purposive method, tested with total plate count agar with pour plate method and contaminant coliform with most probable number method. The result of testing total plate count, all samples is under maximum of SNI  5 × 104CFU/g. After that soy milk sample testing of coliform contaminant, the result is all samples has negative coliform contaminant. Conclusion of the research is all of the legal product soy milk sold in Denpasar qualified to SNI No. 01-3830-1995 and safe to consumption. Keyword: coliform, Denpasar city, Indonesian national standard, soy milk, total plate count.

A New Medium for Determining the Total Plate Count in Food

1999 ◽  
Vol 62 (12) ◽  
pp. 1404-1410 ◽  
Author(s):  
C. F. SMITH ◽  
D. E. TOWNSEND
Keyword(s):  
Linear Regression Analysis ◽  
Alternative Methods ◽  
Plate Count ◽  
Most Probable Number ◽  
Suitable Alternative ◽  
Probable Number ◽  
Standard Plate Count ◽  
Plate Count Agar ◽  
Total Plate Count ◽  
Standard Plate

SimPlate for Total Plate Count–Color Indicator (TPC-CI, IDEXX Laboratories, Inc., Westbrook, Me.) is a new medium that incorporates the redox dye resazurin to detect and quantify bacteria in food. Enumeration is achieved by the most probable number method using a SimPlate device. Viable bacteria are detected in each well of the SimPlate device by the biochemical reduction of resazurin, which is blue, to the pink resorufin or the clear dihydroresorufin indicators. Results after 24 h of incubation for TPC-CI are highly correlated with standard plate count agar after 48 h of incubation. Correlation coefficients from studies conducted at five laboratories ranged from 0.94 to 0.98 in side-by-side comparisons against standard plate count agar. Four additional test sites, using alternative methods for determining the aerobic plate count in food, reported similar results in comparison studies (r = 0.91 to 0.97). The slopes from linear regression analysis at all sites ranged from 0.91 to 0.98, with y intercepts ranging from 0.11 to 0.84. Samples used for the validation of TPC-CI included raw food products (i.e., liver and grains), which may contain natural enzymes that interfere with enzyme-based detection methods. No interference was seen from the foods tested. These results suggest that TPC-CI is a suitable alternative to existing plate count methods and has reduced incubation time.

Comparison of the SimPlate™ Total Plate Count Method with Petrifilm™, Redigel™, and Conventional Pour-Plate Methods for Enumerating Aerobic Microorganisms in Foods

1998 ◽  
Vol 61 (1) ◽  
pp. 14-18 ◽  
Author(s):  
L. R. BEUCHAT ◽  
F. COPELAND ◽  
M. S. CURIALE ◽  
T. DANISAVICH ◽  
V. GANGAR ◽  
...  
Keyword(s):  
Food Samples ◽  
Test Methods ◽  
Plate Count ◽  
Most Probable Number ◽  
Suitable Alternative ◽  
Probable Number ◽  
Plate Count Agar ◽  
Total Plate Count ◽  
Wide Range ◽  
Highly Correlated

The SimPlate™ Total Plate Count (TPC) method, developed by IDEXX Laboratories, Inc., is designed to determine the most probable number of aerobic microorganisms in foods. The 24-h test was compared to the conventional plate count agar (PCA) method, the Petrifilm™ Aerobic Count plates, and the Redigel™ Total Count procedure for enumerating microflora in 751 food samples. Results using the SimPlate™ TPC method were highly correlated (r ≥ 0.96) with results from other test methods. Slopes (0.96–0.97) were not significantly different from 1, and y intercepts (−0.03–0.08) were not different from 0. The SimPlate™ has a high counting range (> 1600 most probable number per single dilution), thus requiring fewer dilutions of samples compared to other methods evaluated. Some foods, e.g., raw liver, wheat flour, and nuts, contain enzymes that gave false-positive reactions on SimPlates™. Overall, however, the SimPlate™ TPC method is a suitable alternative to conventional PCA, Petrifilm™, and Redigel™ methods for estimating populations of mesophilic aerobic microorganisms in a wide range of foods.

Enumeration of Total Aerobic Bacteria and Escherichia coli in Minced Meat and on Carcass Surface Samples with an Automated Most-Probable-Number Method Compared with Colony Count Protocols

2006 ◽  
Vol 69 (10) ◽  
pp. 2500-2503 ◽  
Author(s):  
P. PAULSEN ◽  
E. SCHOPF ◽  
F. J. M. SMULDERS
Keyword(s):  
Escherichia Coli ◽  
Bacterial Flora ◽  
Colony Count ◽  
Plate Count ◽  
Most Probable Number ◽  
Probable Number ◽  
E Coli ◽  
Plate Count Agar ◽  
Two Samples ◽  
Minced Meat

An automated most-probable-number (MPN) system for the enumeration of total bacterial flora and Escherichia coli was compared with plate count agar and tryptone-bile-glucuronide (TBX) and ColiID (in-house method) agar methodology. The MPN partitioning of sample aliquots was done automatically on a disposable card containing 48 wells of 3 different volumes, i.e., 16 replicates per volume. Bacterial growth was detected by the formation of fluorescent 4-methylumbilliferone. After incubation, the number of fluorescent wells was read with a separate device, and the MPN was calculated automatically. A total of 180 naturally contaminated samples were tested (pig and cattle carcass surfaces, n = 63; frozen minced meat, n = 62; and refrigerated minced meat, n = 55). Plate count agar results and MPN were highly correlated (r = 0.99), with log MPN =−0.25 + 1.05·log CFU (plate count agar) (n = 163; range, 2.2 to 7.5 log CFU/g or cm2). Only a few discrepancies were recorded. In two samples (1.1%), the differences were ≥1.0 log; in three samples (1.7%), the differences were ≥0.5 log. For E. coli, regression analysis was done for all three methods for 80 minced meat samples, which were above the limit of detection (1.0 log CFU/g): log MPN = 0.18 + 0.98·log CFU (TBX), r = 0.96, and log MPN =−0.02 + 0.99·log CFU (ColiID), r = 0.99 (range, 1.0 to 4.2 log CFU/g). Four discrepant results were recorded, with differences of >0.5 but <1.0 log unit. These results suggest that the automated MPN method described is a suitable and labor-saving alternative to colony count techniques for total bacterial flora and E. coli determination in minced meat or on carcass surfaces.

Fungi in Foods

1975 ◽  
Vol 38 (12) ◽  
pp. 745-746 ◽  
Author(s):  
J. A. KOBURGER ◽  
A. R. NORDEN
Keyword(s):  
Food Samples ◽  
Plate Count ◽  
Most Probable Number ◽  
Probable Number ◽  
Plate Count Agar ◽  
Yeasts And Molds ◽  
Surface Plate

It was possible to compare recovery of yeasts and molds from 30 food samples by three methods, employing plate count agar and broth with added antibiotics. Although the pour plate and surface plate methods gave comparable results, the Most Probable Number (MPN) procedure consistently yielded the highest counts. With some of the samples, the MPN method was the only one in which recovery occurred. It thus appears that this procedure is practical for detection of fungi and may be of use in survey work or when analyzing foods containing low numbers of microorganisms.

scholarly journals Mutu Bakteriologis Saus Tomat Pentol di Banjarbaru

2016 ◽  
Vol 2 (1) ◽  
pp. 1 ◽  
Author(s):  
Ratih Dewi Dwiyanti ◽  
Leka Lutpiatina
Keyword(s):  
Staphylococcus Aureus ◽  
Plate Count ◽  
Most Probable Number ◽  
Chemical Parameters ◽  
Probable Number ◽  
Tomato Sauce ◽  
Total Plate Count ◽  
Dressing Materials ◽  
And Staphylococcus Aureus

<p style="text-align: justify;">Abstract: The food was used as a complementary flavor sauces include snacks bulb. Dressing materials according to SNI 01-7388-2009 must comply with the requirements of the parameter Staphylococcus aureus, MPN (Most probable number) Coliform, TPC (total plate count) and molds. This study aims to determine the percentage of tomato sauce snacks bulb in the area around the intersection of four Banjarbaru who do not qualify SNI 01-7388-2009 of parameters MPN Coliform and Staphylococcus aureus. The results showed MPN Coliform tomato sauce ranges from 0-240 and Staphylococcus aureus 5 x 101 to 6.5 x 103. Concluded percentage tomato sauce snacks bulb that does not qualify SNI 01-7388-2009 parameter is 60% MPN Coliform and Staphylococcus aureus 80%. Suggestions to determine the value of TPC (total plate count) and molds and other chemical parameters of tomato sauce.

scholarly journals Occurrence and Antibiotic Resistance of Escherichia coli in Street-Vended Kebab in Dramaga, Bogor, Indonesia

2020 ◽  
Author(s):  
D.W. Lukman ◽  
D.Y. Sari ◽  
H. Pisestyani
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Resistance ◽  
National Standard ◽  
Plate Count ◽  
Diffusion Method ◽  
Most Probable Number ◽  
Disk Diffusion Method ◽  
Probable Number ◽  
Street Food ◽  
E Coli

Background: Kebab is one of the popular ready-to-eat foods in Indonesia and sold as a street food. The purpose of this study was to determine occurrence and antibiotic resistance of Escherichia coli in street-vended kebab in Dramaga, Bogor, Indonesia. Methods: Totally, 43 samples of kebab meat were collected from street food kebab vendors. Examinations on Total Plate Count (TPC), and total E. coli using Most Probable Number (MPN) method were referred to the Indonesia National Standard. The antibiotic resistance test was carried out using the Kirby-Bauer disk diffusion method. Results: The mean of TPC in kebab samples was 5.3 log10 Colony Forming Unit (CFU)/g. Based on TPC, 13 out of 43 (30.2%) of kebab samples did not comply with the Indonesia National Standard with maximum acceptable level of 5 log10 CFU/g. E. coli was identified in 5 out of 43 samples (11.6%) with mean of 39.2 MPN/g ranged from 7.4 to 150 MPN/g which were higher than standard level (0.5 log10 CFU/g). Four out of 5 E. coli isolated from kebab samples were resistant to gentamycin. All E. coli isolates were susceptible to amoxicillin/clavulanate and chloramphenicol. Conclusion: The occurrence of antibiotic resistant E. coli in ready-to-eat kebab in this area of Indonesia could cause the health problem in consumers. The local government should conduct the monitoring and surveillance on the occurrence of pathogens and the antibiotic resistance in food chain. 

scholarly journals Calculation Of Coliform Number Using Most Probable Number (MPN) Methods On Soy Milk Sold in Pogot Area Of Surabaya

2020 ◽  
Vol 4 (1) ◽  
pp. 26
Author(s):  
Racma Nisaa
Keyword(s):  
Bacterial Contamination ◽  
Microbial Contamination ◽  
Descriptive Study ◽  
National Standard ◽  
Most Probable Number ◽  
Soy Milk ◽  
Street Vendors ◽  
Probable Number ◽  
Maximum Limit

The quality of drinks is one of the problems that exist in society, especially because of bacterial contamination of drinks that often occurs in developing countries. One of them is soy milk drinks that are contaminated by bacteria including those sold by street vendors in the Pogot area of Surabaya. Based on the background description in this study can be formulated as follows: Is the number of Most Probable Number (MPN) Coliform in soy milk sold by street vendors in the Pogot area of Surabaya fulfill the Indonesian National Standard (SNI) 7388: 2009? The purpose of this study was to determine the amount of Coliform in soy milk sold by street vendors in the Pogot area of Surabaya compared to the Indonesian National Standard (SNI) 7388: 2009 regarding the maximum limit of microbial contamination in food. This study used a descriptive study design that soy milk sold by street vendors in the Pogot area of Surabaya was the population. Samples were used as many as 16 samples from 4 street vendors, each of which was taken 4 then laboratory-tested and analyzed using percentages. Based on the requirements of the Indonesian National Standard (SNI) 7388: 2009, the limit of contamination of the Most Probable Number (MPN) Coliform in soy milk is 20 / ml. Based on the results of the research of 4 soy milk traders there were 2 traders whose the results fulfilled the requirements of the Indonesian National Standard (SNI) and 2 traders whose the results didn't  fulfill the requirements of the Indonesian National Standard (SNI). So 50% were eligible (MS) and 50% were not eligible (TMS).

scholarly journals Uji Cemaran Mikroba Pada Air Yang Digunakan Untuk Mencuci Peralatan Makan Oleh Pedagang Kaki Lima di Sekitar UIN Sunan Ampel Surabaya

2021 ◽  
Vol 5 (2) ◽  
pp. 101-115
Author(s):  
Fahimatul Ula ◽  
Misbakhul Munir ◽  
Hanik Faizah
Keyword(s):  
Escherichia Coli ◽  
Water Sample ◽  
Plate Count ◽  
Most Probable Number ◽  
Food Hygiene ◽  
Street Vendors ◽  
Probable Number ◽  
Total Plate Count ◽  
Before And After ◽  
Mpn Test

The condition of eating places such as street vendors will determine the level of food hygiene, including the water used to wash food utensils. This study aimed to determine the number of microbes and identify Escherichia coli and Salmonella sp. on the water that was used to wash tableware by street vendors around UIN Sunan Ampel Surabaya. Water samples before and after being used to wash tableware were obtained from 4 street vendors. The number of microbes in the sample was tested by the Total Plate Count (TPC) and Most Probable Number (MPN) methods, Escherichia coli was identified using Eosin Methylene Blue Agar (EMB) media, and Salmonella sp. was identified using Salmonella-Shigella agar (SSA) and Triple Sugar Iron agar (TSIA) media. Based on the results of TPC test, the water sample before being used to wash tableware had the lowest and highest values that were 3.0 x 102 Cfu/ml and 9.8 x 105 Cfu/ml, respectively, while the water sample after being used to wash tableware had the lowest and highest values that were 4.0 x 102 Cfu/ml and 3.5 x 105 Cfu/ml, respectively. In the MPN test, the water sample before being used to wash tableware had the lowest and highest values that were 15/100ml and 26 100/ml, respectively, while the water sample after being used to wash tableware had the lowest and highest values that were 72/100 ml and 271/ 100 ml, respectively. Escherichia coli was detected in all samples 1&3 while in sample 2 Escherichia coli was detected in the water before it was detected the genus Enterobacter and in samples 4 the genus Enterobacter was detected and all samples water used to wash tableware of street vendors was positive for Salmonella.

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).

Comparison of β-Glucuronidase and Indole-Based Direct Plating Methods for Enumerating Escherichia coli in Artificially Inoculated Ground Meats

1990 ◽  
Vol 53 (11) ◽  
pp. 933-935 ◽  
Author(s):  
ELON W. FRAMPTON ◽  
LAWRENCE RESTAINO ◽  
NANCY BLASZKO
Keyword(s):  
Escherichia Coli ◽  
Ground Beef ◽  
Plate Count ◽  
Most Probable Number ◽  
Probable Number ◽  
E Coli ◽  
Glucuronidase Activity ◽  
Plate Count Agar ◽  
Significant Difference ◽  
Indole Production

Peptone tergitol glucuronide (PTG) agar containing 4-methylumbelliferyl-β-D glucuronide (MUG) (for β-glucuronidase activity), the Holbrook, Anderson, Baird-Parker (HABP) method (for detecting indole production), and the standard 3-tube most probable number (MPN) method were compared with plate count agar (PCA) for enumerating three strains of unstressed Escherichia coli artificially inoculated into ground beef and chicken at 1–6 × 106 cells/g. No significant difference (P&gt;0.05) was determined between PTG agar and PCA in the recovery of E. coli. The MPN method enumerated a significantly greater (P&lt;0.05) number of E. coli cells than PCA. Compared with PCA, the HABP method recovered a significantly lower (P&lt;0.05) number of E. coli cells from chicken, whereas no significant difference (P&gt;0.05) was obtained with ground beef. When combining all data from chicken and beef, the recovery of E. coli cells by the HABP method was also significantly lower (P&lt;0.05). Overall, based on the enumeration of E. coli on PCA, the HABP method, PTG agar, and MPN method recovered 57, 102, and 144%, respectively.

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