scholarly journals Effect of Microwave Treatment on Chemical Composition and Microbiological Quality of Milk

2017 ◽  
Vol 8 (2) ◽  
pp. 65-72
Author(s):  
Shaymaa Bakry ◽  
M. Mohran ◽  
Nanis Gomah ◽  
E. Essawy
2017 ◽  
Vol 66 (3-4) ◽  
pp. 32-37
Author(s):  
Anka Popović Vranješ ◽  
Saša Krstović ◽  
Anka Kasalica ◽  
Želјka Jurakić ◽  
Ljuba Štrbac ◽  
...  

Summary Currently, milk producers in Vojvodina on registered agricultural holdings (RAHs) have great experience and knowledge in managing their farms, including primary production, processing and sales. However, for a smaller number of manufacturers, there is still room for organizational and technological improvement of production. Nowadays, goat breeding is a very important part of sustainable production, rural development, and represents a very important part of rural development and employment of people. The course of goat breeding in our country is milk-meat, where milk is usually a priority. For the successful production of cheese, the quality of raw milk plays a critical role. It affects the quality of cheese in terms of a chemical composition, microbiological quality, the presence of chemical residues and organoleptic properties. Cheese is mostly made from cow, goat and sheep milk. The valuable components of milk are proteins and fats. These can also be defined as parameters of utilization, since they indicate how much cheese can be obtained from milk. On average, cow milk contains 3.64% fat, 3.22% protein, and 8.52% non-fat dry matter (NFDM). Higher differences in milk fat content (minimum 3.25%, maximum 4.36%) were found in milk from RAHs. Recently, the production of milk with higher fat content has become important, since in Serbian milk there is not enough milk fat, so some processors are obliged to import it in the form of butter and cream. In addition to the chemical composition, the microbiological quality of milk is important to maintain successful cheese production. Regarding our findings, the standard plate count (SPC) and the somatic cell count (SCC) in samples from most RAHs did not exceed the values specified in Regulation (EC) 853/2004. Moreover, goat and sheep milk was in agreement with the technological quality of milk for cheese production, in terms of chemical composition.


Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 961
Author(s):  
Alfredo Teixeira ◽  
Rubén Domínguez ◽  
Iasmin Ferreira ◽  
Etelvina Pereira ◽  
Leticia Estevinho ◽  
...  

Concerned about the trend to reduce salt consumption, the meat industry has been increasing the strategies to produce and commercialize products where the reduction or even the replacement of NaCl is an important goal. The aim of this study was to test the effect of partial NaCl replacement by KCl and Sub4Salt® on the quality of pork sausages. Three different formulations (NaCl + KCl, NaCl + Sub4Salt®, and KCl + Sub4Salt®) were considered and compared to the control (2% NaCl). Physicochemical properties, chemical composition, and microbiological and sensory characteristics were evaluated. The replacement of NaCl did not affect pH, water activity (aw) or its chemical composition after eight or 16 days ripening time, while a significant sodium reduction was achieved. The oxidation index expressed in TBARS was also not affected by the NaCl substitution and varied between 0.01 to 0.04 of malonaldehyde (MDA) per kg of sample. Similarly, the NaCl replacement did not change the microbiological quality of the sausages, and the production of healthier meat sausages had also no significant effect on their sensory characteristics. Therefore, according to the results obtained, it is viable and a good strategy for the meat industry to produce “reduced sodium content” sausages without affecting their traditional quality.


1997 ◽  
Vol 64 (1) ◽  
pp. 157-162 ◽  
Author(s):  
BRUNO MARTIN ◽  
JEAN-FRANÇOIS CHAMBA ◽  
JEAN-BAPTISTE COULON ◽  
ERIC PERREARD

Success in making a cheese acceptable in both flavour and texture depends partly on curd properties which determine the retention of fat and moisture and, thus, cheese yield and composition (Green & Grandison, 1993). When considering farmhouse and/or Appelation d'Origine Contrôlée cheese where milk treatments are not allowed, curd properties depend only on milk composition and clotting characteristics, which are subject to wide fluctuations over the year owing to the cow's stage of lactation and nutritional factors (O'Keeffe, 1984; Macheboeuf et al. 1993). These variations often result in seasonal differences in the chemical or sensory properties of the cheese (Kefford et al. 1995) which are sometimes difficult to understand (Grandison et al. 1985). Only a few studies have assessed the cheesemaking quality of milk by actually making ripened cheese; most studies report milk coagulation properties and curd firmness.The object of this work was to study the influence of the chemical composition and clotting characteristics of the milk on the chemical and sensory properties of ripened cheeses when milk characteristics vary widely.


1995 ◽  
Vol 5 (1) ◽  
pp. 69-74 ◽  
Author(s):  
A. Soler ◽  
C. Ponsell ◽  
M. De Paz ◽  
M. Nuñez

Author(s):  
Carmen LAZAR ◽  
Ancuta Mihaela ROTAR ◽  
Sorin APOSTU ◽  
Georgiana BUZGAU

The quality and safety of grocery became a consumers’ right that affects directly the quality of life. Thus, the issues referring to the safety of grocery is in the center of attention of the institutions created for protecting the customers’ best interests. The bio milk can be defined as milk with zero quality defects. This means that the milk corresponds to all quality criteria, respectively nutritional, sanitary, bacteriologic, technologic, sensorial, and psycho-social. The microbiological analyses that are described in the paper have the purpose of monitoring the microbiological parameters listed COMMISSION REGULATION (EC) No 1441/2007 of 5 December 2007 amending Regulation (EC) No 2073/2005 on microbiological criteria for foodstuffs and REGULATION (EC) No 853/2004 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 29 April 2004 laying down specific hygiene rules for food of animal origin. The research was made during the validity period of the 3 types of milk that were studied (eco milk, UHT milk, conventional) respectively the product in the first day of validity, in the middle of the validity period and in the last day of validity. The methods used represented both rapid and classic standardized techniques, using media of enrichment, isolation and confirmation, characteristic to each method. After the realised determinations referring to some microbiological characteristics of the conventional and ecological milk, through the validity period were observed some alterations related to the microbiological quality of milk.


2011 ◽  
Vol 10 (12) ◽  
pp. 1195-1202 ◽  
Author(s):  
Ali Afzal ◽  
M.S. Mahmood ◽  
Iftikhar Hussain ◽  
Masood Akhtar

Author(s):  
Aécio Melo de LIMA ◽  
George Rodrigo Beltrão da CRUZ ◽  
Roberto Germano da COSTA ◽  
Neila Lidiany RIBEIRO ◽  
Edvaldo Mesquita BELTRÃO FILHO ◽  
...  

Author(s):  
Pooja Singh ◽  
Ranvijay Singh ◽  
Bhavana Gupta ◽  
Sabya Tripathi ◽  
Shakuntala Birla ◽  
...  

2010 ◽  
Vol 7 (5) ◽  
pp. 601-604 ◽  
Author(s):  
Sebastien Breurec ◽  
Rodrigue Poueme ◽  
Cheikh Fall ◽  
Adama Tall ◽  
Abdoulaye Diawara ◽  
...  

1974 ◽  
Vol 37 (3) ◽  
pp. 119-122 ◽  
Author(s):  
D. R. Ghodeker ◽  
A. T. Dudani ◽  
B. Ranganathan

A total of 245 samples of Indian milk products comprising khoa, burfi, and pera were examined for chemical, microbiological, and organoleptic qualities, and samples were graded as ‘good,’ ‘fair,' and ‘poor'. The chemical composition of these products varied considerably. Higher bacterial and fungal counts were noted in khoa, as compared to burfi and pera. A variety of microorganisms such as micrococci, sarcinae, aerobic spore-formers, coliforms, staphylococci, streptococci, and lactobacilli were isolated from the samples.


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