scholarly journals Quality of Dried Anchovy (Stolephorus sp.) from Buru Island Produced by Using Closed Sun Dryer

2018 ◽  
Vol 21 (3) ◽  
pp. 543
Author(s):  
Imelda Krisanta Enda Savitri ◽  
Bernita Silaban ◽  
R.B.D. Sormin
Keyword(s):  
Traditional Method ◽  
Low Cost ◽  
National Standard ◽  
Plate Count ◽  
Drying Method ◽  
Vibrio Cholera ◽  
E Coli ◽  
Total Plate Count ◽  
Better Than

Anchovies drying method in Saliong, Batuboi village, Kayeli Bay has been done by spreading fish on the ground covered by mat or net due to low cost and easy to apply. However, there are no guarantee in the sanitation and hygienic. The objective of this research was to study the effect of closed sun drying method on the quality of dried anchovies (Stolephorus sp). The method was using closed cabinet sun dryer prototype covered by transparence plastic multi racks. Parameters observed involve: organoleptic, moisture content, acid insoluble, total plate count (TPC), E. coli, Salmonella sp., Vibrio cholera and fungi according to Indonesian national standard reference (SNI). The result showed the dried anchovy have an organoleptic grade refers to appearance, smells and texture were 8.40, 8.33 and 8.27 respectively. Moreover, moisture 17.50%; acid insoluble ash 0.32%; total bacterial (TPC) 6.92x102; E. coli, Salmonella sp., V. cholera and fungi were negative. For comparison, dried anchovy produced by using conventional/traditional drying had an organoleptic grade refers to appearance, smells and texture were 7.67, 7.73 dan 7.87 respectively; while moisture 16.93% ; acid insoluble ash 0.65%; total bacterial (TPC) 1.16 x103; E. coli, Salmonella sp., V. cholera and fungi were negative. According to the SNI 01-2891 BSN 1992, dried anchovy produced by using enclosed sun dryer better than dried anchovy produced by traditional method.

Microbial quality of frozen squid (Sepioteuthis lessoniana, Lesson 1830) treated with food grade commercial chemicals

2015 ◽  
Author(s):  
Vikas Kumar ◽  
D. Sukumar ◽  
M. Muruganantham
Keyword(s):  
Quality Evaluation ◽  
Microbiological Quality ◽  
Plate Count ◽  
Microbial Quality ◽  
Food Grade ◽  
E Coli ◽  
Total Plate Count ◽  
Sepioteuthis Lessoniana ◽  
Better Than

Squids perish rapidly like other fishes and require some treatment to maintain the quality for export. The microbial quality of frozen squid (Sepioteuthis lessoniana, Lesson 1830) treated with the commercial food grade chemicals imported from Spain was therefore studied. Dressed squids were treated with the chemicals Hidratech_4A (0.4%) and Whitech_3 (0.25%) dissolved in chilled freshwater (STCF) and chilled saltwater (STCS). Chilled squids not treated served as control (SNTC). Squids were quick frozen at -40°C in contact plate freezer and stored at-20±1°C. Samples were tested raw, after pre-processing, treatments and freezing and during storage at monthly intervals for 7 months. The microbial quality evaluation included Total Plate Count (TPC), Escherichia coli, Staphylococcus aureus, Vibrio cholerae and Salmonella. Study revealed a better quality of treated samples than control. Microbiological quality of STCS was better than STCF and SNTC. E. coli counts decreased after treatment. Salmonella and V. cholerae were absent.

scholarly journals Microbiological and formaline test on the big eye tuna (Thunnus obesus Lowe, 1839) from fish auction place (TPI) and moving fish trader (PIK) in Panimbang Pandeglang Village Banten

2021 ◽  
Vol 1 (1) ◽  
pp. 38-45
Author(s):  
Lia Amelia Pertiwi ◽  
Hadi Susilo ◽  
Nurullah Asep Abdilah
Keyword(s):  
Microbial Contamination ◽  
Brilliant Green ◽  
Economic Value ◽  
Plate Count ◽  
E Coli ◽  
Plate Count Agar ◽  
Total Plate Count ◽  
Thunnus Obesus ◽  
The World

Big Eye Tuna (Thunnus obesus Lowe, 1839) is one of the fish species that can increase sources of animal protein and has high economic value in the world of trade because it is the second-largest export commodity after shrimp. The purpose of this study was to test the content of microbial and formalin contamination in the flesh of T. obesus fish from the Fish Auction Place (TPI) and Mobile Fish Trader (PIK) in Panimbang Village, Pandeglang, Banten. The research was carried out at the Regional Technical Implementation Unit (UPTD) Testing and Application of Quality of Fishery Products, Department of Marine Affairs, and Fisheries of Banten Province. This research is a descriptive laboratory study with purposive sampling. Twelve samples of T. obesus fish obtained from TPI (6 fishes) and PIK (6 fishes) were taken for 25 g of meat. The tested for microbial contamination content with Total Plate Count (TPC) using Butterfield's phosphate (BFP) media, and Plate Count Agar (PCA), Coliform-Test, and E. coli-Test using Lauryl Tryptose Broth (LTB). Brilliant Green Lactose Bile (BGLB), EC Broth and Levine's Eosin Methylene Blue (LEMB), and Formaldehyde-Test using  Formaldehyde-Test Kits. The results showed that the flesh of T. obesus fish contained microbial contamination with the average values ​​of TPC, Coliform MPN, and E. coli MPN, respectively, namely 1.6 103 colony/g, 15.2 MPN/g and < 3 MPN/g ( TPI), and 1,7103 colony/g, 61.3 MPN/g and < 3 MPN/g (PIK). Therefore, fish in TPI and PIK are safe for consumption as stipulated in SNI.

scholarly journals ANALISA MIKROBIOLOGI DAN ORGANOLEPTIK PRODUK TENGGIRI BEKU(Scomberomorus commersonii)

2018 ◽  
Vol 6 (2) ◽  
pp. 54
Author(s):  
Mulyana Mulyana ◽  
Dwi Indah Widya Yanti
Keyword(s):  
Plate Count ◽  
Test Results ◽  
Microbiological Test ◽  
E Coli ◽  
Total Plate Count ◽  
Physical Chemical ◽  
The People ◽  
Standard Value ◽  
Test Result

Mackerel fish is sea fishs species which are pelagic marine fish groupwhich has a distinctive taste so favored by the people. frozen mackerel is a fishs that is easily damaged. Thus the fishs need to be handling it well. Fishskeep the temperature will affect the quality of the fishs. during storage in the storage and distribution processing. can affect product quality. To decrease the quality of frozen mackerel fishs products need to note the changes that occur either through physical, chemical and biological. It explains research to analyze the quality of fishs products frozen mackerel observe  aspects of Microbiology testing and Appearance. Based on the results of microbiological and organoleptic frozen mackerel fish, it can be conclude that test for microbiological test total plate count (TPC) is below the standard value in accordance with ISO 4110, 2014. for Uju E, coli is negative, Salmonella Test is Begatif, Vibrio Colera test is also negative and Appearance Test Values above 7 quality fish so the test results of Microbiology and poduct organoleptic frozen mackerel safe for consumption as the above test result.

Microbiological safety of ready-to-eat foods in hospital and university canteens in Hanoi, Vietnam

2021 ◽  
Author(s):  
Hue Thi Luu ◽  
Chris M. Michiels
Keyword(s):  
Microbiological Quality ◽  
Intervention Strategies ◽  
Plate Count ◽  
Quality And Safety ◽  
Baseline Measurement ◽  
E Coli ◽  
Microbiological Safety ◽  
Total Plate Count ◽  
And Staphylococcus Aureus

The aim of this study is to analyze and document the microbiological safety and quality of ready-to-eat foods in hospital and university canteens in Hanoi, Vietnam. A total of 420 ready-to-eat food products from 21 canteens were sampled in July 2018 and May 2019. The ratio of samples exceeding the unsatisfactory level for Total Plate Count (TPC) was 31%. Escherichia coli, Listeria and Staphylococcus aureus were detected in 35 (8.3%), 99 (24%), 46 (11%) samples, with 3%, 10% and 0% exceeding the unsatisfactory level, respectively. The Total Plate Count (TPC), Listeria, Bacillus cereus, E. coli, S. aureus ranged from below detection limit to 5x10 9 , 4.6x10 5 , 6.2x10 3 , 3.4x10 3 , 7.6x10 3 CFU/g, respectively. Listeria monocytogenes was isolated from 3/420 samples (0.7%). In addition, there were 21 out of 410 samples (5%) contaminated with Salmonella. Overall, our data indicate frequent problems with the microbiological quality and safety of these canteen foods in Hanoi, and provide a baseline measurement that will allow environmental health officers and food microbiologists to develop targeted intervention strategies to reduce the economical and public health risk associated with these foods.

scholarly journals Evaluasi mutu susu segar dari peternak berbeda di provinsi Lampung sebagai bahan baku keju

2021 ◽  
Vol 26 (2) ◽  
pp. 109
Author(s):  
Neti Yuliana ◽  
Iyan Indrawan ◽  
Chandra Utami Wirawati ◽  
Sumardi Sumardi
Keyword(s):  
Total Protein ◽  
Milk Quality ◽  
Raw Material ◽  
National Standard ◽  
Plate Count ◽  
Antibiotic Residues ◽  
Milk Samples ◽  
Fresh Milk ◽  
Total Plate Count

The objective of this study was to evaluate the quality of fresh cow’s milk from different farmers in Lampung Province as a raw material for cheese in view of the Indonesian National Standard SNI 31411 (2011) regulation.  Twelve fresh milk samples from four different districts (Tanggamus, Metro, Gisting, and Pesawaran) were evaluated by estimation of total protein and fat, pH, alcohol test, total plate count, antibiotic residues, and sensory. The result of the study revealed that the samples had protein and fat ranged from 2.44 to 3.90 %, and from 3.48 to 4.73% (wet basis) respectively.  The fresh milks had normal sensory and pH, negative of alcohol test, and free from antibiotic residues. Total microbes were detected in log 5-6 CFU/ml.  Majority of the samples screened met the Indonesian National Standard and could be used as a raw material for cheese making.  Keywords:  cheese,  fresh milk quality, Lampung province, SNI 31411,

scholarly journals Karakteristik Kimia dan Mikrobiologi Makanan Ringan Khas Pemalang Ogel-ogel

2020 ◽  
Vol 9 (2) ◽  
pp. 44-49
Author(s):  
Siti Susanti ◽  
Fahmi Arifan ◽  
Murni Murni ◽  
Ana Silviana
Keyword(s):  
Heavy Metal ◽  
Salt Content ◽  
Rice Flour ◽  
National Standard ◽  
Plate Count ◽  
Total Plate Count ◽  
Glutinous Rice ◽  
Microbiological Characteristics ◽  
Snack Products

Penelitian ini bertujuan untuk mengetahui karakteristik kimia dan mikrobiologis sebagai dasar penentu kualitas produk makanan ringan ogel-ogel khas Pemalang agar sesuai dengan peraturan SNI 01-2886-2015. Ogel-ogel berbahan dasar tepung beras ketan yang dicampur dengan telur, keju, gula, dan garam. Selanjutnya adonan tersebut dicetak seperti ulat menggeliat dengan menggunakan ekstruder yang kemudian digoreng. Penelitian dilakukan secara deskriptif dengan parameter uji karakteristik kimia yaitu kadar karbohidrat, protein, lemak, air, abu, garam, logam berat, dan uji ketengikan serta mikrobiologi. Hasil penelitian menunjukkan bahwa ogel-ogel memiliki nilai ketengikan (nilai TBA) 2,16 mg MA/kg; kadar karbohidrat, protein, lemak, air, abu, dan garam masing-masing sebesar 44,75; 13,52; 39,42; 2,51; 0,08; dan 1,87%. Tidak ditemukan adanya kandungan logam berat pada ogel-ogel kecuali timah (10,56 mg/kg) dengan jumlah total mikroba sebanyak 0,87x104 CFU/g. Dapat disimpulkan bahwa secara umum mutu ogel-ogel ditinjau dari karakteristik mikrobiologi dan kimianya telah sesuai dengan Standar Nasional Indonesia tentang makanan ringan ekstrusi (SNI 01-2886-2015) kecuali kadar lemaknya yang masih tinggi. Perlu dipikirkan teknik produksi ogel-ogel dimasa yang akan datang supaya kadar lemaknya lebih rendah sehingga mutunya sesuai dengan SNI. Chemical and Microbiological Characteristic of Ogel-ogel Pemalang Typical SnackAbstractThis study was aimed to get more insight the chemical and microbiological characteristics as a basis for determining the quality of ogel-ogel (snack products typical of Pemalang) to comply with SNI regulations 01-2886-2015. Ogel-ogel made from glutinous rice flour mixed with eggs, cheese, sugar and salt. That dough was molded like a stretched worm by using an extruder and then was fried. The study was conducted descriptively with chemical (carbohydrate, protein, fat, water, ash, salt, heavy metal, and rancidity test) and microbiology (total plate count-TPC) characteristic as the parameters. The results showed that ogel-ogel had a rancidity (TBA) value of 2.16 mg MA/kg; carbohydrate, protein, fat, moisture, ash and salt content of 44.75; 13.52; 39.42; 2.51; 0.08; and 1.87% respectively. No heavy metal content was found in ogel-ogel except lead (10.56 mg/kg) with a total amount of microbes of 0.87x104 CFU/g. It can be concluded that as general, the quality of ogel-ogel in the aspects of microbiological and chemical characteristics was in accordance with the Indonesian National Standard of extruded snacks (SNI 01-2886-2015) except for its high fat content. Further technique to produce ogel-ogel with low fat is necessary to be contemplated to fulfill the quality of ogel-ogel in accordance with SNI.

scholarly journals GAMBARAN ANGKA LEMPENG TOTAL DAN IDENTIFIKASI BAKTERI Escherichia coli PADA LOLOH BUNGA TELENG DI DESA PENGLIPURAN KECAMATAN BANGLI

2021 ◽  
Vol 9 (1) ◽  
pp. 12-18
Author(s):  
Nyoman Mastra
Keyword(s):  
Escherichia Coli ◽  
Key Words ◽  
Microbiological Quality ◽  
Plate Count ◽  
Sampling Techniques ◽  
E Coli ◽  
Descriptive Research ◽  
Total Plate Count ◽  
Laboratory Examinations

AbstractBackground : Teleng flower herb is a processed beverage made from teleng flower which is popular as a traditional drink from Penglipuran Village. As one of the beverage products, teleng flower herbs have to obtain consent from the BPOM before distributed and consumed. Purpose : this study was conducted to analyze the quality of microbiology of teleng flower herb. The analyzed parameters were total plate count (ALT) and E. coli bacteria identification. Method : this study used descriptive research with laboratory examinations which was conducted at the Bacteriology Laboratory. The 7 samples were obtained from producers with three times repetition so that it became 21 samples with sampling techniques were saturated sampling. Result : The ALT examination results show that 5 samples (71.4%) are not qualify and 2 samples (28.6%) are qualify based on BPOM Regulation Number 16 In 2016. The obtained results of E. coli identification show that there were 4 (57.1%) contain of E. coli pathogens and 3 samples (42.9%) are not contains of E. coli pathogens. It can be concluded that most of the hygiene of teleng flower herb at Penglipuran Village does not meet the requirements. Conclusion : Based on these results, we suggest to the producers of teleng flower herb to maintain the quality of teleng flower herb that they sell. Key words: teleng flower herb, microbiological quality, total plate count, E. coli

scholarly journals Kualitas Mikrobiologis Dan Higiene Pedagang Lawar Di Kawasan Pariwisata Kabupaten Gianyar

2017 ◽  
Vol 16 (2) ◽  
pp. 56
Author(s):  
Sang Gede Purnama ◽  
Herry Purnama ◽  
I Made Subrata
Keyword(s):  
Microbiological Quality ◽  
Plate Count ◽  
Most Probable Number ◽  
Traditional Food ◽  
Food Handlers ◽  
Cross Sectional ◽  
Probable Number ◽  
E Coli ◽  
Total Plate Count

Latar belakang dan tujuan: Kualitas mikrobiologi makanan masih menjadi masalah pada keamanan pangan. Di Bali banyak terdapat pedagang makanan khas tradisional, salah satunya adalah lawar. Lawar tidak hanya disukai oleh masyarakat lokal, tetapi juga oleh wisatawan mancanegara. Pemeriksaan mikrobiologi terhadap lawar perlu dilakukan agar sesuai dengan standar kualitas makanan yang dapat mencegah terjadinya kasus traveler’s diarrhea. Dalam mempersiapkan makanan khas tradisional sebagai food tourism maka diperlukan kajian mengenai kualitas pangan. Hal ini untuk memenuhi keamanan pangan sehingga mampu bersaing di pasar global.  Penelitian ini bertujuan untuk mengetahui kualitas mikrobiologis dan higiene pedagang lawar di kawasan pariwisata Kabupaten Gianyar, Bali serta proses pengolahan yang baik.Metode:  Penelitian ini merupakan studi analitik cross sectional dengan pendekatan kuantitatif dan kualitatif menggunakan alat ukur pedoman observasi, wawancara dan pemeriksaan laboratorium. Pengambilan sampel menggunakan teknik random sampling dengan jumlah sampel sebanyak 44 penjamah makanan dan 44 sampel lawar. Wawancaara mendalam dilakukan pada 6 orang pedagang lawar untuk mengetahui proses pengelolaan lawar yang baik. Pemeriksaan E.Coli pada sampel lawar dilakukan di Laboratorium Mikrobiologi Fak. Kedokteran dengan Total Plate Count (TPC) dan Most Probable Number (MPN) yaitu perkiraan jumlah kuman yang mendekati per 100 ml air.Hasil: Proporsi sampel lawar dengan E. coli positif dijumpai sebesar 72,7%. Dari hasil observasi dijumpai bahwa higiene penjamah makanan dalam kategori kurang baik sebesar 72,7%, fasilitas sanitasi kurang memadai 59%, kebersihan lingkungan kurang 54,5%. Hasil analisis bivariat menunjukkan bahwa variabel yang bermakna berhubungan dengan kontaminasi E. Coli yaitu: higiene penjamah makanan (p=0,00), fasilitas sanitasi (p=0,00) dan kebersihan lingkungan (p=0,05).Simpulan : Proporsi lawar yang terkontaminasi E. coli masih sangat tinggi dan hal ini berhubungan dengan higiene penjamah makanan, fasilitas sanitasi dan kebersihan lingkungan.  AbstractBackground and aims: Microbiological quality of food is still a problem on food safety. In Bali there are many traditional food traders, one of which is lawar. Lawar are not only preferred by local people, but also by foreign tourists. Microbiological test to lawar needs to be done to comply with the quality standards of food that can prevent cases of traveler's diarrhea. In preparing traditional food as a food tourism will require assessment of the quality of the food. This is to achieve food safety standards so as to compete in the global market. This study aims to determine the microbiological quality and hygiene lawar traders in the tourist area of Gianyar, Bali as well as hygiene and sanitation models of good food.Methods: This was a cross sectional analytical study with a quantitative and qualitative approach, using a measuring instrument observation, interview and laboratory tests. Sampling using random sampling method with a sample size 44 and 44 samples of food handlers lawar. In-depth interviews were conducted on 6 lawar traders to know how to create a good lawar. E. coli in samples lawar examination conducted at the Laboratory of Microbiology, Faculty of Medicine with Total Plate Count (TPC) and the Most Probable Number (MPN), which estimates the number of germs.Results: The proportion of samples positive lawar with E. coli was found at 72.7%. From the observation found that the hygiene of food handlers in the unfavorable category as much as 72.7%, inadequate sanitation facilities 59%, 54.5% less environmental hygiene. Results of bivariate analysis showed that the variables significantly associated with E. Coli contamination namely: hygiene of food handlers (p = 0.00), sanitary facilities (p = 0.00) and sanitation (p = 0.05).Conclusions: The proportion lawar contaminated with E. coli is still very high and this is associated with a food handler hygiene, sanitation and environmental hygiene.

scholarly journals EVALUASI MUTU LADA PUTIH BUBUK YANG DIPERDAGANGKAN DI PASAR TRADISIONAL DAN MODERN DI BOGOR DAN JAKARTA

2021 ◽  
Vol 17 (3) ◽  
pp. 126
Author(s):  
NFN Hernani ◽  
Tatang Hidayat ◽  
NFN Risfaheri
Keyword(s):  
Ash Content ◽  
National Standard ◽  
Plate Count ◽  
White Pepper ◽  
E Coli ◽  
Hygroscopic Properties ◽  
Physico Chemical ◽  
Mold Fungus ◽  
Pepper Powder

<p>Lada putih bubuk mempunyai sifat sangat higroskopis, sehingga mudah mengalami kerusakan, baik fisik, kimia ataupun mikrobiologis. Tujuan dari penelitian adalah menentukan mutu lada putih bubuk, baik secara fisik, kimia dan mikrobiologi dari pasar tradisional dan modern di wilayah Bogor dan Jakarta serta mendapatkan informasi awal/indikasi adanya pencampuran bahan lain pada lada putih bubuk. Metodologi penelitian terdiri atas beberapa tahapan, yaitu metode pengambilan sampel dilakukan secara acak sederhana (<em>simple random sampling</em>), dari pasar tradisional yang dijual secara curah, dan pasar modern yang dikemas dalam botol plastik, masing-masing 3 lokasi dan 3 ulangan. Untuk masing-masing sampel yang diambil dari pasar tradisional dan modern adalah 300 g. Pengujian fisiko-kimia sesuai dengan metode yang dikeluarkan oleh IPC (<em>International Pepper Community</em>), yaitu kadar air, abu, abu tak larut asam, minyak atsiri, piperin dan logam timbal (Pb). Untuk uji mikrobiologis terdiri dari TPC (<em>Total Plate Count</em>), kapang, jamur, <em>Salmonella</em> dan <em>Escheria coli</em>. Selain itu, dilakukanan analisis SEM (<em>Scanning Electrone Microscope</em>) untuk melihat profil morfologi permukaan. Hasil penelitian menunjukkan bahwa untuk kadar air, abu, minyak atsiri masih memenuhi kriteria SNI 01 3717 1995, kecuali kadar abu yang tidak larut asam dan kadar piperin. Cemaran mikrobiologi (TPC, kapang dan jamur) memenuhi kriteria, kecuali <em>E. coli</em> dan jamur pada sampel dari pasar tradisional Bogor. <em>Salmonella</em> memenuhi kriteria SNI untuk semua sampel, yaitu negatif. Cemaran logam berat (Pb) masih memenuhi ketentuan kriteria SNI. Deteksi pencampuran lada putih bubuk dengan bahan lain menggunakan metode kombinasi sifat fisiko-kimia dan SEM baru bisa mendeteksi adanya indikasi pencampuran, dan belum bisa menentukan jenis bahan percampurnya.</p><p> </p><p><strong>Evaluation Of Quality of White Pepper Powder on Trade in Traditional and Modern Markets in Bogor and Jakarta.</strong></p><p>White pepper powder has very hygroscopic properties, so it is easily damaged, physically, chemically, or microbiologically. The purpose of this study was to determine the quality of white pepper powder, physically, chemically, and microbiologically from the traditional and modern markets of Bogor and Jakarta and to obtain information of mixing white pepper powder using other ingredients. The research methodology consists of several stages, namely sampling from traditional markets that are sold in bulk, and modern markets, which are packaged in plastic bottles; the sample has taken from 3 locations and 3 replications. For each sample taken from traditional and modern markets was 300 g. The physico-chemical tested according to the methods issued by the IPC, especially for moisture, ash content, acid insoluble ash, essential oil, piperine and timbal (Pb). The microbiological was tested, including TPC, mold, fungus, <em>Salmonella</em> and <em>Escheria coli</em>. In addition, an SEM analysis was performed to see the surface morphology profile. The results showed that moisture, ash content, ash insoluble in acid, volatile oil still meets the criteria of Indonesian National Standard, except for ash insoluble in acid and piperine content. Microbiological contamination fulfilled SNI criteria except <em>E. coli </em>and mold in samples from PT Bogor.  Salmonella was fulfilled SNI criteria for all samples, which are given negative. Heavy metal (Pb) still fulfils the requirement in SNI criteria. Detection of mixing white pepper powder with other ingredients using a combination of physico-chemical properties and SEM can detect the indication of mixing and has not been able to determine the type of mixing material.</p>

Impact of Raw Materials and Processing Techniques on The Microbiological Quality of Egyptian Domiati Cheese

2020 ◽  
Keyword(s):  
Raw Materials ◽  
Microbiological Quality ◽  
Raw Milk ◽  
Plate Count ◽  
E Coli ◽  
Fresh Cheese ◽  
Processing Techniques ◽  
The Impact ◽  
Total Yeast

Domiati cheese is the most popular brand of cheese ripened in brine in the Middle East in terms of consumed quantities. This study was performed to investigate the impact of the microbiological quality of the used raw materials, the applied traditional processing techniques and ripening period on the quality and safety of the produced cheese. Three hundred random composite samples were collected from three factories at Fayoum Governorate, Egypt. Collected samples represent twenty-five each of: raw milk, table salt, calf rennet, microbial rennet, water, environmental air, whey, fresh cheese, ripened cheese & swabs from: worker hands; cheese molds and utensils; tanks. All samples were examined microbiologically for Standard Plate Count (SPC), coliforms count, Staphylococcus aureus (S. aureus) count, total yeast & mould count, presence of E. coli, Salmonellae and Listeria monocytogenes (L. monocytogenes). The mean value of SPC, coliforms, S. aureus and total yeast & mould counts ranged from (79×102 CFU/m3 for air to 13×108 CFU/g for fresh cheese), (7×102 MPN/ cm2 for tank swabs to 80×106 MPN/ml for raw milk), (9×102 CFU/g for salt to 69×106 CFU/g for fresh cheese) and (2×102 CFU/cm2 for hand swabs to 60×104 CFU/g for fresh cheese), respectively. Whereas, E. coli, Salmonella and L. monocytogenes failed to be detected in all examined samples. There were significant differences in all determined microbiological parameters (p ≤0.05) between fresh and ripened cheese which may be attributed to different adverse conditions such as water activity, pH, salt content and temperature carried out to improve the quality of the product.

Sign in / Sign up

Export Citation Format

Share Document