Why we check rm value of ghee?
… These values were within the range of the standard RM value for pure ghee (Table 2). RM value indicates whether the ghee is prepared from milk fat or not [15] . It can be said that the branded industries tried to make ghee from milk fat. …
What does RM value indicates?
The Reichert value is an indicator of how much volatile fatty acid can be extracted from fat through saponification. This number is a useful indicator of non-fat compounds in edible fats, and is especially high in butter.
What is RM test in milk?
The RM value method is based on the detection of volatile fatty acids found only in milk fat, such as butyric acid (C4: 0) and caproic acid (C6: 0) (Pradhan, 2016). The value of RM is in the range of 28-35 in the milk fat samples, and it is measured as 7 in the vegetable oils (Kumar et al., 2016).
What is P value of ghee?
Not less than 21.0. P. Value [1.0-2.0]
What is RM and PV value?
The Reichert Meissl (RM) value of cow ghee varies from 26 to 26, while that of buffalo ghee is about 32. However, ghee made from milk of animals fed cottonseed has much lower RM value (i.e. 20). The Polenske value (PV) of cow ghee (2.0-3.0) is higher than for buffalo ghee (1.0-1.5).
How do you calculate rm value?
Reichert-Meissl value = (A – B ) × N × 11 Polenske value = 10 ×V×N where, A = volume, in ml, of NaOH solution required for the test, B = volume, in ml, of NaOH solution required for blank, and N = normality of NaOH solution.
What is RM value of butter?
The RM values of the analyzed samples were shown in Table 1. The mean RM value of butter samples was 25.35 ± 6.76. The highest Reichert-Meissl value was 31.11 was and the lowest Reichert-Meissl value was 0.23 in all samples analyzed.
What is FFA in ghee?
Free fatty acids (FFA) in ghee Free fatty acids levels is the percentage by weight of free acid groups in the oil ghee samples were determined by the method as described in SP:18 (1981).
What is RM value milk?
RM value for milk fat ranges from 17 to 35, which is well above the value (generally 1) for all other fats and oils except coconut oil and palm kernel oil for which the value ranges between 4 to 8 [5].
How do you check FFA in ghee?
The result is often expressed as the percentage of the free fatty acids (FFA). The acid value of ghee is determined by titrating 1 gram of ghee and alcohol against standard alkali solution in the presence of phenolphthalene.
Which grade ghee is best?
The grading has been adopted based on an international grade scale where 5 is very good, 4 is good, 3 is average, 2 is poor and 1 is very poor. As per our standard procedure, we undertook random market research to identify the regular-selling cow ghee brands.
How can we check pure ghee at home?
The easiest method to check the purity is by melting it in a pan. Put a pan on medium heat and let it heat for a while, now add a teaspoon of ghee to it. If the ghee melts immediately and turns dark brownish in colour, then it is pure ghee.
What is the minimum RM number of ghee?
Sheep and buffalo ghee on the other hand, have higher RM numbers of about 32. In general, ghee is required to have a RM number of not less than 28. It is, however, of interest that ghee from milk of animals fed cotton seeds has much lower RM numbers of about 20.
How to read ghee with a BR meter?
The accurate reading of ghee sample can be carried out by comparing the value of the sample ghee with the standard value. The BR meter will be able to find the concentration of ghee and to identify other substances by comparing its refractive index value with known values.
What are the RM and Polenske numbers of ghee?
In general, ghee is required to have a RM number of not less than 28. It is, however, of interest that ghee from milk of animals fed cotton seeds has much lower RM numbers of about 20. Polenske number for cow ghee is higher (2 to 3) than buffalo ghee (1 to 1.5).
Why is it important to get the Ghee tested?
It is important to get the ghee tested to ensure that the BR value of the product is in compliance with food regulations according to the region. Most manufacturers get their ghee tested as accurate BR reading is necessary to fulfil requirements of food regulations and ensure that ghee is free from adulterants.