Relevant factors for raw milk quality for dairy foods manufacture

2022 ◽  
pp. 1-17
Author(s):  
Marco Antonio Sloboda Cortez ◽  
Maria Carmela Kasnowski Holanda Duarte ◽  
Leide Roberta Barboza de Melo
2020 ◽  
Vol 6 (8) ◽  
pp. 64027-64042
Author(s):  
Palloma Vitória Carlos de Oliveira ◽  
Evilásio de Souza Lima Neto ◽  
Neymar Mendes Lucena ◽  
Maria Rociene Abrantes ◽  
Jean Berg Alves da Silva ◽  
...  
Keyword(s):  
Raw Milk ◽  

2018 ◽  
Vol 156 (4) ◽  
pp. 570-574
Author(s):  
J. Liao ◽  
T. Ku ◽  
Y. F. Liu ◽  
J. Zhao

AbstractMonitoring milk quality traits and the classification of raw milk are important steps for generating high-quality dairy products. Given the important roles of the BRG1/BRM-associated factor 60c (BAF60c) gene in the regulation of physiological growth and production, the objective of the current study was to analyse the association between the BAF60c gene and milk quality and establish a gene-based method for pre-evaluating raw milk quality. For this purpose, DNA was isolated from 507 milk samples and genotyped using the polymerase chain reaction-restricted fragment length polymorphism method. Milk quality traits including milk protein percentage (MPP), milk fat percentage (MFP), lactose percentage (LP) and total solids content (TSC) were also evaluated from the same 507 milk samples. The newly found 6060 T > C mutation of the BAF60c gene was associated significantly with MPP and LP, but not with MFP and TSC. The results demonstrated that this mutation could be used for the pre-evaluation of MPP and LP; therefore, raw milk could be graded according to different genotypes.


1978 ◽  
Vol 41 (5) ◽  
pp. 356-360 ◽  
Author(s):  
C. H. WHITE ◽  
W. T. GILLIS ◽  
D. L. SIMMLER ◽  
M. K. GALAL ◽  
J. R. WALSH ◽  
...  

A study was done to evaluate raw milk quality tests in an attempt to answer some questions regarding values or standards by which milk acceptance is determined. Initially, of 315 individual producer samples, 226 (72%) had proteolytic psychrotrophs. More than 90% of these psychrotrophs were of the genus Pseudomonas. All samples were obtained from four dairy companies processing milk in Georgia. One dairy had individual producers whose milk samples contained a large percentage of thermoduric psychrotrophs. “Bitter” flavors were more prevalent in samples collected from this dairy than in samples from the other three dairies. The degree of measurable proteolysis (Hull value) was directly correlated with the incidence of the naturally occurring “bitter” flavor. The mean Hull value for milk from this dairy (30.62 μg/ml) was 12–14 μg higher than the other three means. The mean Hull value for the “bitter” samples was 46 μg/ml.


2003 ◽  
Vol 86 (5) ◽  
pp. 963-970 ◽  
Author(s):  
Karen M Silbernagel ◽  
Robert P Jechorek ◽  
Charles N Carver ◽  
Barbara L Horter ◽  
Kathryn G Lindberg ◽  
...  

Abstract The 3M™ Petrifilm™ Staph Express Count plate method was compared with AOAC Official Method 975.55 for the enumeration of Staphylococcus aureus in selected foods. Five foods—ice cream, raw milk, yogurt, whey powder, and cheese—were analyzed for S. aureus by 12 collaborating laboratories. For each food tested, the collaborators received 8 blind test samples consisting of a control sample, a low inoculation level, a medium inoculation level, and a medium inoculation level with background flora, each in duplicate. The mean log10 counts for the methods were comparable for all 5 foods. The repeatability and reproducibility variances of the 24 h Petrifilm Staph Express Count plate method were similar to those of the 72 h standard method.


2013 ◽  
Vol 411-414 ◽  
pp. 2417-2422
Author(s):  
Yao Li Zhang ◽  
Jing Chen ◽  
Xin Zhong

Now, along with the improvement of people's living standard, more and more people quality safety problems of dairy products by the attention. Milk quality index basically has sensory indexes and physiochemical index, microbiological quality and harmful material residues and pollutants quantity four aspects. Regarding the enterprise, it wants to produce milk, besides should assured teaches defend in production of various indexes; outside the control of raw also cannot be ignored. The key points to control of raw comparison of raw index are to ensure effective method.In recent years, as environmental pollution increasingly heavier, antibiotics, making the wrong use already slowly pollution to harmful material variety of dairy products, in the milk antibiotic and heavy metal content has become the focus of people are indexes. First, in this paper introduces dairy products can exist of antibiotic types and the detection method, then to mercury as example, the paper introduces the current national state currently can several methods of determination of mercury, through the practical consideration, find a relatively simple, efficient, feasibility big test methods.


1995 ◽  
Vol 48 (3) ◽  
pp. 97-99 ◽  
Author(s):  
P KASTANAS ◽  
S RAVANIS ◽  
M J LEWIS ◽  
A S GRANDISON
Keyword(s):  
Raw Milk ◽  

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