scholarly journals Possibilities of different animal milk detection in milk and dairy products – a review

2011 ◽  
Vol 23 (No. 2) ◽  
pp. 41-50 ◽  
Author(s):  
M. Borková ◽  
J. Snášelová
Keyword(s):  
Dairy Products ◽  
High Performance ◽  
Dna Analysis ◽  
Bovine Milk ◽  
Milk Proteins ◽  
Goat Milk ◽  
Milk Adulteration ◽  
Animal Milk ◽  
Food Monitoring ◽  
Milk And Dairy Products

Adulteration of milk and dairy products with different types of milk, other than declared, presents a big problem for food monitoring. The evidence of milk adulteration is a difficult task considering similar compositions of various types of milk. The presented review is therefore focused on the study of the composition of milk from different animal species. The aim is to find a useful marker component for the adulterant detection. The analysis of milk proteins is a suitable solution of this problem. The techniques used for research in this area were also studied. As prospective techniques, immunological techniques and techniques based on DNA analysis are especially considered. The first ones are able to determine 0.5% of different milk adulterant, and the second ones even as little as 0.1%. Reverse-phase high-performance liquid chromatography is successfully applied in the quantitative analysis of individual milk adulterants in samples. The most frequent adulteration of ewe and goat milk is its replacement with less expensive and more plentiful bovine milk. Not so typical adulteration is the presence of goat milk in ewe milk or the detection of bovine milk as adulterant in buffalo mozzarella cheese.  

scholarly journals Stav potrošača u Vojvodini prema kozjem mlijeku i proizvodima od kozjeg mlijeka

2020 ◽  
Vol 70 (3) ◽  
pp. 171-183 ◽  
Author(s):  
Snežana Paskaš ◽  
Zsolt Becskei ◽  
Marija Pajić ◽  
Izabela Mugoša ◽  
Tijana Lopičić-Vasić ◽  
...  
Keyword(s):  
Dairy Products ◽  
Positive Impact ◽  
Health Benefits ◽  
Bovine Milk ◽  
Goat Milk ◽  
Health Impact ◽  
Added Value ◽  
Main Category ◽  
Factors Affecting ◽  
Milk And Dairy Products

This study presents the results of a survey conducted in the Province of Vojvodina, Serbia to investigate consumers’ attitudes towards goat milk and goat milk products. Furthermore, the factors affecting consumer perception and subjective norms with respect to purchase were examined. The quantitative random survey was conducted and the data were collected using a structured questionnaire. The findings from this study revealed significantly lower acceptance of goat milk and dairy products compared to bovine milk and dairy products. Of total 440 respondents, 24.2 % had never consumed goat milk with significant positive impact (p<0.05) of age on consumption was found. Among, respondents, mostly the young population (18-25 years) does not consume goat milk. The study identified the odour (42.3 %) and taste (22.5 %) as the main barriers for consuming goat milk. In regard to purchasing, more than half of interviewed respondents do not buy goat milk and dairy products (67 % and 70.5 %, respectively) while the rest respondents expressed very low purchasing frequency. Health benefits represent the most important reason for potential consuming goat milk and dairy products (66.5 %). On the other hand, the main motives for purchasing bovine milk and dairy products are taste and quality (55.5 %). In particular, the oldest surveyed population (40-55 years) seemed to be the most positive group toward goat milk and the most interested in the product’s nutritional value and its health impact. The main category of goat dairy products purchased among surveyed respondents was cheese. These findings suggest that for better positioning on the market and for producing price-competitive products goat milk and dairy products should be more clarified as either quality products or products with added value or as products with unique health benefits.

scholarly journals Effectual Gold Nanoprobe Sensor for Screening Cow Milk Adulteration in Goat Milk—Comparison With Conventional PCR

2021 ◽  
Vol 13 (5) ◽  
pp. 41
Author(s):  
Jose Manuel Llopis Ortiz ◽  
Christos Tsouknidas ◽  
Sophie Pytel ◽  
Spiridon Papatheodorou ◽  
Despina Vougiouklaki ◽  
...  
Keyword(s):  
Dairy Products ◽  
Low Cost ◽  
Bovine Milk ◽  
Goat Milk ◽  
Cow Milk ◽  
Conventional Pcr ◽  
Characteristic Peak ◽  
Detection Level ◽  
Milk Adulteration ◽  
Gold Nanoprobe

Different methods have been used to detect milk adulteration, but in recent years the use of nanomaterials has been introduced as an interesting tool, due to their optical properties. A gold nanoparticle (AuNP) probe application was developed in order to evaluate milk adulteration. The methodology relies on the colorimetric differentiation and the participation profiles of the hybridization DNA sequence with the AuNPs. Various concentrations, from 0.01 (traces) to 50%, of cows’ milk in goats’ milk samples were prepared for DNA extraction, further identification with the AuNPs and comparison with a conventional PCR. Also, a total of 40 dairy products from goat milk, commonly consumed in Greece, were tested. Negative and goat reaction mixtures showed a purplish coloured solution with a peak at > 570 nm, while samples containing bovine DNA had an absorbance closer to the characteristic peak of the AuNPs at 520-525 nm. Presence of bovine milk was detected even at traces level, achieving a detection level comparable to those achieved by conventional PCR. The use of AuNPs in milk products, provides a low-cost and easy-to-perform method and offers the possibility to detect fraudulent practices in various food matrices.

scholarly journals Calcium Bioavailability from Bovine Milk and Dairy Products in Premenopausal Women Using Intrinsic and Extrinsic Labeling Techniques

1996 ◽  
Vol 126 (5) ◽  
pp. 1406-1411 ◽  
Author(s):  
Kwangok P. Nickel ◽  
Berdine R. Martin ◽  
David L. Smith ◽  
Jean B. Smith ◽  
Gregory D. Miller ◽  
...  
Keyword(s):  
Dairy Products ◽  
Bovine Milk ◽  
Premenopausal Women ◽  
Calcium Bioavailability ◽  
Milk And Dairy Products

Determination of Bisphenol A in Milk and Dairy Products by High-Performance Liquid Chromatography with Fluorescence Detection

2003 ◽  
Vol 66 (8) ◽  
pp. 1439-1443 ◽  
Author(s):  
JEONG-HUN KANG ◽  
FUSAO KONDO
Keyword(s):  
Bisphenol A ◽  
Dairy Products ◽  
High Performance ◽  
Solid Phase ◽  
Skim Milk ◽  
The European Union ◽  
Condensed Milk ◽  
Oasis Hlb ◽  
Milk And Dairy Products

This study was conducted to develop a selective and sensitive method for the determination of bisphenol A (BPA) levels in milk and dairy products. A method based on solvent extraction with acetonitrile and solid-phase extraction (SPE) was developed for the analysis of BPA in milk, yogurt, cream, butter, pudding, condensed milk, and flavored milk, and a method using two SPE cartridges (OASIS HLB and Florisil cartridge) for skim milk was also developed. The developed methods showed good recovery levels (77 to 102%) together with low detection limits (1 μg/liter for milk, yogurt, pudding, condensed milk, flavored milk, and skim milk and 3 μg/liter for cream and butter). These methods are simple, sensitive, and suitable for the analysis of BPA in milk and dairy products. When 40 milk and dairy products were analyzed by the proposed methods, BPA was not identified in noncanned products, but its levels ranged from 21 to 43 μg/kg in canned products, levels that were 60- to 140-fold lower than the migration limits in the European Union and Japan.

scholarly journals IDENTIFIKASI E. COLI O157:H7, SALMONELLA SP, DAN SENSITIFITAS ANTIBIOTIKA DARI SUSU KAMBING DAN PRODUK OLAHANNYA

2019 ◽  
Vol 15 (1) ◽  
pp. 36
Author(s):  
Widodo Suwito ◽  
NFN Andriani ◽  
Felisitas Kristiyanti ◽  
Erna Winarti
Keyword(s):  
Dairy Products ◽  
Milk Powder ◽  
Antibiotic Sensitivity ◽  
Goat Milk ◽  
Dairy Goat ◽  
Most Probable Number ◽  
Isolation And Identification ◽  
Probable Number ◽  
E Coli ◽  
Milk And Dairy Products

<p>Susu kambing dan produk olahannya dapat terkontaminasi <em>E. coli </em>O157:H7 dan <em>Salmonella </em>sp. Tujuan penelitian ini untuk isolasi dan identifikasi <em>E. coli </em>O157:H7, <em>Salmonella </em>sp, dan sensitifitasnya terhadap antibiotika dari susu kambing dan produk olahannya. Sebanyak 15 sampel susu kambing dan produk olahannya seperti susu bubuk, permen, es krim, yogurt, dan krupuk masing-masing sebanyak 10, 3, 6, 4, dan 3 sampel. Semua sampel diperiksa terhadap <em>E. coli </em>O157:H7, dan <em>Salmonella </em>sp berdasarkan reaksi biokimia. Jumlah <em>E. coli </em>pada semua sampel dihitung dengan most probable number (MPN), sedangkan sensitifitas terhadap antibiotika dengan agar difusi. Hasil penelitian menunjukkan bahwa susu kambing dan produk olahannya tidak ditemukan <em>E. coli </em>O157:H7 dan <em>Salmonella </em>sp., tetapi <em>E. coli </em>non O157:H7 ditemukan pada susu kambing sebanyak 3/15 (20%) dengan jumlah &gt;6 MPN/100ml. Semua produk olahan susu kambing memiliki jumlah <em>E. coli </em>&lt;3 MPN/100ml. <em>E. coli </em>dari susu kambing resisten terhadap cefiksime, kanamisin, tetrasiklin, sulfonamide, dan oksitetrasiklin masing-masing sebanyak 1/3 (30%), sedangkan ampisilin dan amoksilin 100%.</p><p> </p><p><strong>Goat milk and dairy products could be contaminated with <em>E. coli </em>O157:H7 and <em>Salmonella </em>sp</strong>.</p><p>The purpose of this study was to isolation and identification of <em>E. coli </em>O157:H7, <em>Salmonella </em>sp, and antibiotic sensitivity from goat milk and dairy products. A total of 15 samples from goat milk and dairy products such as milk powder, candy, ice cream, yogurt, and crackers respectively 10, 3, 6, 4, and 3 samples. All samples were analyzed for <em>E. coli </em>O157: H7, and Salmonella sp with biochemical reaction. Total of <em>E. coli </em>in all samples was measured with most probable number (MPN) and antibiotic sensitivity with diffusion agar. These study showed that goat milk and dairy products not found <em>E. coli </em>O157:H7 and <em>Salmonella </em>sp., whereas <em>E. coli </em>non O157:H7 was found in goat milk 3/15 (20%) with total <em>E. coli </em>&gt;6 MPN/100ml. All dairy goat products have total <em>E. coli </em>&lt;3 MPN/100ml. <em>E. coli </em>from goat milk was resistant to cefixime, kanamycin, tetracycline, sulfonamide, and oxytetracycline 1/3 (30%) respectively, but ampicillin and amoxicillin 100%.</p>

CONTROL PROBLEMS AND METHODS FOR DETECTING RESIDUAL AMOUNTS OF ANTIBACTERIAL SUBSTANCES IN MILK AND DAIRY PRODUCTS

2020 ◽  
Vol 1 (2) ◽  
pp. 165-169
Author(s):  
G.M. Goryainova ◽  
◽  
E.A. Denisova ◽  
L.V. Arsen`eva ◽  
V.S. Babunova ◽  
...  
Keyword(s):  
Dairy Products ◽  
High Performance ◽  
Raw Milk ◽  
Detection Methods ◽  
Assay Method ◽  
Enzyme Linked Immunosorbent Assay ◽  
Official Method ◽  
The European Union ◽  
Residual Amount ◽  
Milk And Dairy Products

The article is devoted to the study of control issues and methods for detecting residual amounts of antibacterial substances in milk and dairy products. The presence of a large number of antibacterial drugs on the Russian market and their use in dairy farming makes it an urgent problem to detect their residual amount, both in raw milk and in dairy products. The lack of standardized detection methods, sufficiently equipped and accredited laboratories, and the high cost and duration of research are obstacles to monitoringthe content of the residual amount of antibiotics., including state control. Currently, the state monitoring system for screening antibiotics uses the enzyme-linked immunosorbent assay method (ELISA), which is the official method for monitoring animal products adopted in the European Union. To confirm the quantitative content of antibiotics, a high-performance liquid chromatography (HPLC) method with various types of detectors is used, which is reliable but very time-consuming for screening a large number of samples. Using the patented Randox Biochip technology as a method for detecting the residual amount of antibiotics in milk and dairy products, it would be possible to determine up to 25 antibacterial substances in one sample, including those that are not often used in veterinary practice.

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