What are the moisture content of fresh fish?
The average percentage of moisture present in five fish species is about 71.38%. All fish types were found to be high in fat content.
What is moisture content determination?
Moisture content is, simply, how much water is in a product. It influences the physical properties of a substance, including weight, density, viscosity, conductivity, and others. It is generally determined by weight loss upon drying. There are many methods for determination of moisture content.
Which is the best method for determination of moisture content?
The oven drying method is the standard laboratory method and it is very accurate method used to determine the water content of soil.
What is the significance of moisture content in fish processing?
Moisture content of the food material is important to consider the food is suitable before the consumption, because moisture content affects the physical, chemical aspects of food which relates with the freshness and stability for the storage of the food for a long period of time and the moisture content determine the …
What is the moisture content of dried fish?
Haque (2004) stated that normally the sun-dried fishes contain an average of 10 to 20% of moisture. Hussain et al. (1992) found that the moisture content varied over a wide range from 12.3-54% in Labeo ghonius.
What percent water are fish?
Basic components of fish muscles are water, protein, fat, vitamins and ash. Among these, water constituent is more in fishes and other animals, making 70% or more weight of most organisms is due to water.
What are the steps in the determination of moisture content?
Methods of Measuring Moisture Content: Direct measurement: water content is determined by removing moisture and then by measuring weight loss; Indirect measurement: an intermediate variable is measured and then converted into moisture content.
Why do we test moisture content?
The analysis of moisture content is essential to the food industry to control for the quality of the food, as well as the shelf life, in addition to helping food manufacture companies adhere to legal and labeling requirements.
What are the USP NF methods of moisture determination?
The USP offers two methods for the determination of moisture content in solids: titrimetry (Karl Fisher titration) and gravimetric (e.g., thermal gravimetric analysis).
What are the official methods of moisture content determination?
The major secondary methods for measuring moisture include electrical, microwave, nuclear and NIR absorbance Additional methods that are not as frequently used are hydrometry, refractometry, freezing point and GCMS.
How is dryness measured?
The classic laboratory method of measuring high level moisture in solid or semi-solid materials is loss on drying. In this technique a sample of material is weighed, heated in an oven for an appropriate period, cooled in the dry atmosphere of a desiccator, and then reweighed.
How do you calculate moisture content in food?
The amount of water is determined by subtracting the dry weight from the initial weight, and the moisture content is then calculated as the amount of water divided by the dry weight or total weight, depending on the reporting method.
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