scholarly journals Evaluation of Microbiological and Physico-Chemical Quality of Raw Milk from Sibiu Dairy Farm Province of Romania

Author(s):  
Mihaela TIŢA ◽  
Otto KETNEY ◽  
Ramona IANCU ◽  
Ramzan MUHAMMAD

Research aims at benchmarking the quality of raw milk supplied by four private farms in the county of Sibiu at a distance of about 25 km each for a period of three months (April, May, June 2010). Samples were subject to particularly microbiological measurements (total number of germ and somatic cells), physico-chemical (acidity, fat density, non-fat dry matter, protein and freezing point titre) by international standard methods. The results of the four farms show different variations of the parameters analyzed as follows: 55.5% of the samples fall in physico-chemical parameters of standard quality and 79% of the samples fall within the parameters of microbiological quality standard and within the limits provided by law

1970 ◽  
Vol 6 (2) ◽  
pp. 217-221 ◽  
Author(s):  
MTG Khan ◽  
MA Zinnah ◽  
MP Siddique ◽  
MHA Rashid ◽  
MA Islam ◽  
...  

The present study was undertaken with the aim of investigating the physical parameters (e.g. organoleptic and specific gravity of raw milk) and also to study the microbiological quality of raw milk (total viable count, Coliform count and Staphylococcal count) from different villages and Bangladesh Agricultural University (BAU) Dairy Farm of Mymensingh District of Bangladesh, during the period from July to November 2007. A total number of 100 raw milk samples were collected at morning and evening from BAU dairy farm and surrounding four villages of BAU campus. The organoleptic and bacteriological qualities of each sample were analyzed. The organoleptic examination included taste panel score to assess consumer's acceptance and the bacteriological analysis comprised enumeration of total viable count (TVC), total colifrom count (TCC) and total staphylococcal count (TSC) for the determination of sanitary quality. The organoleptic quality of the milk samples is more or less same except the Churkhai milk samples which had flat taste (in 16% milk sample). The average values of TVC/ml were log 5.920, 5.934, 6.007, 6.075 and 6.127 for BAU Dairy Farm, Boira, Shutiakhali, Churkahai and Paglabazar respectively; coliform count were log 2.501, 2.522, 2.550, 2.620 and 2.619 respectively; staphylococcal count were log 2.832, 2.812, 2.866, 2.931 and 2.988 respectively. So, it may be concluded that the raw milk samples of BAU Dairy Farm were superior to others collected from the selected villages which may be due to maintaining better hygienic condition. Key words: Raw milk, physical and microbial quality   doi: 10.3329/bjvm.v6i2.2339 Bangl. J. Vet. Med. (2008). 6 (2): 217-221


2017 ◽  
Vol 13 (3) ◽  
pp. 43
Author(s):  
Fouad Dimane ◽  
Khadija Haboubi ◽  
Issam Hanafi ◽  
Abdelouahad El Himri ◽  
Kaouthar Andaloussi

Water is a precious and essential natural resource for multiple uses. Its use for food or hygiene requires excellent physicochemical and microbiological quality. To assess the quality of well water for human consumption in the Al Hoceima region which is located in North of Morocco, a physico-chemical and bacteriological control was carried out on the basis of 10 water samples from wells in this area. The analyzes were performed on these samples by measuring the following physic-chemical parameters: temperature, pH, electric conductivity (EC), chloride (Cl -),dissolved oxygen, nitrate (NO3 -), and possibly seeking unwanted bacteria (total bacteria, total coliforms, fecal coliforms, fecal streptococci). The samples were analyzed systematically to measure all the physicochemical indicators of pollution. Correlation between pollution parameters were conducted to give a reponse element on the main causes pollution. The results performed analysis, revealed a pollution of an agricultural origin. This is confirmed by the maximum levels of chlorides, which exceed 2640 mg/l, thereby explaining the high conductivity levels (4800μs/cm). In addition 14% of analyzed wells have nitre levels 50mg/l nitrate pollution a not alarming. However, if a pollution of agricultural origin is mentioned, the lithological contribution can not be neglected on the results obtained.


2018 ◽  
Vol 84 (0) ◽  
Author(s):  
Vivian Mörschbächer ◽  
Claudete Rempel ◽  
Mônica Maciel

ABSTRACT: Transport of cooled raw milk in bulk has greatly improved the quality of the raw material collected by dairy plants as it reduces the proliferation of mesophilic microorganisms that cause milk acidity and hinder its processing. However, refrigeration has favored the growth of psychrotrophic microorganisms which are able to grow at low temperatures (below 10ºC) and that produce heat resistant enzymes which degrade some milk components, reducing milk shelf life and causing organoleptic changes. The aim of this paper was to evaluate the microbiological quality of raw milk in dairy farms and after its transport to the processing dairy plant, through plate counting of mesophilic and psychrotrophic microorganisms. Fourteen milk samples were collected from tanks of the dairy-farming properties, and one sample was collected from their milk transport tanker at the entrance of the processing plant. Our results showed that the mean number of mesophilic microorganisms was higher in samples collected straight from the dairy farm tanks than in the samples collected from the transportation tankers at the entrance of the plant. Of the 14 sampled tanks, 64.3% were non-compliant with legislation. The sample collected from the milk transportation tanker containing milk from all properties showed a higher mean number of psychrotrophic microorganisms than the dairy farm samples. We conclude that the milk from dairy properties showed a higher amount of mesophilic microorganisms, and after transportation, at the entrance of the processing plant, there is a higher amount of psychrotrophic microorganisms.


2020 ◽  
Vol 39 (01) ◽  
Author(s):  
Pankaj Kumar Gupta ◽  
Dinesh Chandra Rai ◽  
Vinod Kumar Paswan ◽  
Rajendra Panta ◽  
Ashok Kumar Yadav

The present study was conducted to evaluate the physico-chemical characteristics including Adulteration and Microbiological quality of cow raw milk collected from four different places of ASSI region in Varanasi. Samples were analysed to know the chemical composition, the results showed that the statistically average percentage of Moisture (87.46), Fat (3.87), Protein (3.15), Lactose (4.42), Ash (.712), pH (6.43) and acidity (0.147). The keeping quality of milk was evaluated by Methylene Blue Reduction Test (MBRT). This phenomenon testified that milk sample 1 is fair quality and remained sample were found good and excellent. The microbiological conclusion confirmed the presence (less or more) of microbial load in all the raw milk samples. The highest level of microbial quality in standard plate count (SPC) was 19.1×106 cfu/ml. in sample 1 and in logarithm value is 7.28 cfu/ml at the same time, the highest coliform bacteria 2.3×102 in logarithm value is 2.36 was found in the sample 2. The adulterations in raw milk were checked by the standard procedure. In cow’s raw milk the different mixed adulterant were found in two samples contaminated with detergent and pulverized soap. Besides different hazardous chemical adulterant, raw milk from sample 1 was detected with presence of hydrogen peroxide and sample 2 was contaminated formalin whereas urea was present in sample 2 and 4. Milk adulteration is a global concern and social problem. Increased demand, growth in competition in dairy industry and financial gain makes some producers to adulterate the milk thereby decreasing milk quality.


AGROFOR ◽  
2018 ◽  
Vol 2 (2) ◽  
Author(s):  
Gordana DIMITROVSKA ◽  
Sonja SRBINOVSKA ◽  
Elena JOSHEVSKA ◽  
Vangelica JOVANOVSKA

“Bieno’’ cheese is an indigenous dairy product in Macedonia with autochthonoustraditional production technology which dates back from the Ottoman Empire. Theresearch includes and presents the results of the chemical composition and safety ofraw milk used for traditional production of ‘’Bieno’’ cheese, technology andphysico-chemical and microbiological quality of ‘’Bieno’’ cheese. The quality ofthe milk samples was determined within the permissible maximum according todata legislation. It is necessary to respect the hygienic-sanitary norms related tocultivation, preservation and care of the milking herds, and with the righttechnology of milking. After 45 days of ripening the researchers recorded theaverage results for the following parameters of the ‘’Bieno’’ cheese: moisture(38.63%), dry matter (61.37%), milk fat (26.89%), milk fat in dry matter (43.83%),proteins (26.53%), ash (9.25%), salt (5.21%) and the average of yield (9.36%). Theresearch specified the microbiological quality of “bieno” cheese after 45 days ofripening in accordance with the special requirements of food safety regarding themicrobiological criteria. Nowadays, there is a growing interest of consumers forcheeses produced with traditional technologies, usually based on handmadeproduction, characterized by piquant, unique and specific aromas, atypical forindustrial cheeses. The technology, physico-chemical and microbiological qualitycould be used in the protection of the origin and geographical labelling based on itsunique technology. The data obtained serve as the basis for creating standardizedproduction procedures, leading to the uniform quality of these products.


Jurnal MIPA ◽  
2015 ◽  
Vol 4 (2) ◽  
pp. 153
Author(s):  
Martin Aprilino Tambunan ◽  
Jemmy Abidjulu ◽  
Audy Wuntu

Telah dilakukan penelitian tentang kualitas fisika-kimia air sumur di tempat pembuangan akhir sampah (TPA) kecamatan Tuminting, Manado secara kualitatif dan kuantitatif. Kajian yang dilakukan meliputi parameter fisika yaitu penentuan pH, bau, rasa, warna, kekeruhan dan total padatan terlarut (TDT) serta parameter kimia yaitu penentuan nitrat, nitrit, klorida, sulfat, besi dan mangan. Berdasarkan hasil pengujian parameter fisika pada 4 titik pengambilan air ada beberapa titik pengambilan sampel yang tidak sesuai dengan syarat baku mutu kualitas air yaitu tidak berbau dan berasa serta memiliki rentang pH 6,5-9,2 dan memiliki nilai maksimal untuk warna 50, kekeruhan 25, dan TDT 1500. Begitu juga untuk parameter kimia ada beberapa titik pengambilan sampel yang tidak sesuai dengan syarat baku mutu kualitas air yaitu memiliki nilai maksimal untuk klorida 600 mg/L, nitrat 10 mg/L, nitrit 1 mg/L, besi 1 mg/L, mangan 0,5 m/L dan sulfat 400 mg/L.A research on the physico-chemical quality of the well water in the landfill (TPA) district Tuminting, Manado has been done. The study includedphysical parameters, namely pH, odor, taste, color, turbidity and total dissolved solids (TDS) and chemical parameters, namely nitrate, nitrite, chloride, sulphate, iron and manganese. Among the four sampling sites, some sites did not meet the water quality standard based on some physical parameters, those are odorless and tasteless, pH range of 6.5 to 9.2 and maximum value of 50 for color, 25 for turbidity, and 1500 for TDS. Likewise, for chemical parameters, several sampling points are not in accordance with the terms of water quality standard, those aremaximum value of 600 mg/Lfor chlorides, 10 mg/L for nitrate, 1 mg/L for nitrite, 1 mg/L for iron, 0.5 m/L for manganese and 400 mg/L for sulphate.


Author(s):  
Ioan HAN ◽  
Otilia BOBIŞ ◽  
Liviu Alexandru MĂRGHITAŞ

Milk is a biological fluid where fats are distributed in microglobules (2-10 million/cm3), in an aqueous solution of proteins, carbohydrates and other substances. The main physico-chemical properties of milk are: density, viscosity, specific heat, boiling point, freezing point, pH and total acidity. Microbiological quality is represented by the presence or absence of pathogens or alterations, which can contaminate milk as a raw material. The comparative nutritional and microbiological quality of milk from three counties, from Transilvania Region, were fat percentage, total protein, casein content, lactose, pH, urea, total germ count (TGC) and somatic cell count (SCC). The best percentages of fat were obtained in Bihor County, with mean values of all lactations of 4.00%. This was followed by Hunedoara County with 3.97% and Alba County with 3.95%. The highest protein percentages were obtained in samples collected in Bihor County, with mean values of 3.57%, followed by Hunedoara County with 3.52% and Alba County with 3.51%. Most physicochemical indices fall within the normal limits, unanimously accepted by existing standards, but microbiological indices in some cases do not meet the requirements for the admission of raw milk.


2022 ◽  
pp. 16-20
Author(s):  
Алла Евгеньевна Туманова ◽  
Наталья Викторовна Присухина ◽  
Нэлля Николаевна Типсина ◽  
Александр Иннокентьевич Машанов ◽  
Николай Иванович Селиванов

В последние годы все большее внимание уделяется разработке продукции, обогащенной растительными компонентами. Целью данной работы являлось исследование влияния смесей из порошков растительного происхождения на свойства теста и качество готовых изделий (булочной мелочи). В рецептуру изделий добавляли растительные смеси: № 1 - порошок облепихи, жимолости, мелкоплодных яблок и порошок из жмыха тыквы, № 2 - порошок облепихи и мелкоплодных яблок в количестве 10, 15 и 20 % от массы муки по сухому веществу. Смеси составляли из компонентов, взятых в равных количествах. Сравнительная оценка пищевой ценности смесей показала, что в смеси № 1 выше количество пищевых волокон, кальция и фосфора относительно смеси № 2. В смеси № 2 преобладает количество белков, жиров, органических кислот, калия, натрия, марганца и железа. По содержанию витаминов преимущество на стороне смеси № 2, за исключением витаминов В и В. Установили повышение кислотности теста с внесением растительных смесей, что указывает на интенсификацию процесса брожения. Исследование качества готовых изделий показало, что при соответствии физико-химических показателей требованиям технической документации, при дозировках смесей выше 10 % отмечали значительное потемнение цвета изделий, появление растительного привкуса, а в изделиях с добавлением смеси №1 неприятное послевкусие. Наиболее рациональной для производства хлебобулочных изделий повышенной пищевой ценности для здорового питания признана рецептура с использованием растительной смеси № 2 из порошков облепихи и мелкоплодных яблок в количестве 10 % к массе муки. In recent years, more and more attention has been paid to the development of products enriched with plant components. The purpose of this work was to study the effect of mixtures of powders of vegetable origin on the properties of dough and the quality of finished products (bakery trifles). Vegetable mixtures were added to the recipe of the products: No. 1 - sea buckthorn powder, honeysuckle, small-fruited apples and pumpkin cake powder; No. 2 - sea buckthorn powder and small-fruited apples, in the amount of 10, 15 and 20 % of the flour weight by dry matter. The mixtures were made up of components taken in equal quantities. A comparative assessment of the nutritional value of the mixtures showed that the amount of dietary fiber, calcium and phosphorus in mixture No. 1 is higher, relative to mixture No. 2. The mixture No. 2 is dominated by the amount of proteins, fats, organic acids, potassium, sodium, manganese and iron. In terms of vitamin content, the advantage is on the side of mixture No. 2, with the exception of vitamins B and B. An increase in the acidity of the dough was established, with the introduction of vegetable mixtures, which indicates an intensification of the fermentation process. The study of the quality of finished products showed that when the physico-chemical parameters meet the requirements of technical documentation, at dosages of mixtures above 10%, a significant darkening of the color of the products, the appearance of a vegetable taste, and in products with the addition of mixture No. 1, an unpleasant aftertaste was noted. The most rational recipe for the production of bakery products of increased nutritional value for a healthy diet is recognized, using a vegetable mixture No. 2 of sea buckthorn powders and small-fruited apples in an amount of 10 % by weight of flour.


Author(s):  
Carmen Pop ◽  
Cristina Anamaria Semeniuc ◽  
Sorin Apostu ◽  
Ancuţa Mihaela Rotar

The aim of this study is the assessmentof the quality control of raw milk and traditional burduf cheese obtained fromcow milk mixed with 10% sheep milk. Appreciation of the integrity and freshness assessmentof milk (cow and sheep) was tested by physico-chemical analysis.On theshelf-live were determined the physico-chemical parameters in cheese samples. Theantibiotics residues were tested of the milk samples with portable analyser,model Rosa Charm Reader. Theresults of physico-chemical determinations for the milk and cheese samples werewithin the maximum permissible by data legislation. Regardingthe content of antibiotics, the results were negative both for cow milk and forsheep milk. The sensorycharacteristics of burduf cheese are influenced by the different types of milk.


2017 ◽  
Vol 13 (2) ◽  
pp. 111-119
Author(s):  
Lela Uyara ◽  
Pieter Kunu ◽  
Silwanus M Talakua

The study aims to determine the quality of clean water in the villages of Wainitu, Batumerah, Amahusu and Halong by comparing the result of water quality analysis with water quality standard. Water quality analysis includes Physiscal, Chemical, and Microbiological parameters. This research uses descriptive method, this method describes systematics, accurate about facts and characteristic of the quality of clean water of each research location. The results showed that the source of clean water in the village of Batumerah did not meet the standard of clean water quality standards indicated by the number of E. coli and the high total coliform.  Keywords: standard quality of clean water, water quality, Wainitu, Batumerah, Amahusu and Halong villages   ABSTRAK Penelitian yang bertujuan untuk menetapkan kualitas air bersih di Desa Wainitu, Batumerah, Amahusu dan Halong, dengan membandingkan hasil analisis kualitas air dengan standar baku mutu air bersih. Analisis kualitas air meliputi parameter fisika, kimia dan mikrobiologi. Penelitian ini menggunakan metode deskriptif; metode ini menggambarkan sicara sistematis, akurat, fakta dan karakteristik mengenai kualitas air bersih di masing-masing lokasi penelitian. Hasil penelitian menunjukkan bahwa sumber air bersih di Desa Batumerah tidak memenuhi standar baku mutu air bersih yang ditunjukkan oleh jumlah E. coli dan total Koliform yang tinggi. Kata Kunci: baku mutu air bersih, Desa Wainitu, Batumerah, Amahusu dan Halong, kualitas air


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