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Intermediate moisture foods (IMF) are shelf-stable products that have water activities of 0.6-0.85, with a moisture content ranging from 15% - 40% and are edible without rehydration. [1] These food products are below the minimum water activity for most bacteria (0.90), but are susceptible to yeast and mold growth .
Pastirma is classified as an "intermediate moisture food". Lowering the moisture level is a form of food preservation that hinders the growth of microorganisms , and the cemen paste "is used to control surface mold growth during storage". [ 31 ]
The water in food has a tendency to evaporate, but the water vapor in the surrounding air has a tendency to condense into the food. When the two tendencies are in balance— and the air and food are stable—the air's relative humidity (expressed as a fraction instead of as a percentage) is taken to be the water activity, a w. Thus, water ...
The various types of food products manufactured by extrusion typically have a high starch content. [1] Directly expanded types include breakfast cereals and corn curls, and are made in high-temperature, low-moisture conditions under high shear. Unexpanded products include pasta, which is produced at intermediate moisture (about 40%) and low ...
Food moisture analysis is the determination of the concentration of water in a food sample. A variety of techniques may be used including Karl Fischer titration and loss on drying. Many technical standards exist which define test methods for determining moisture in different types of food.
Foods is a peer-reviewed scientific journal covering various aspects of food science. It is published by MDPI and was established in 2012. The editor-in-chief is Arun K. Bhunia ( Purdue University ).
Wheat bran structure (E: outer layer; I: intermediate layer; A: aleurone layer) Bran, also known as miller's bran, is the component of a cereal grain consisting of the hard layers - the combined aleurone and pericarp - surrounding the endosperm. Corn (maize) bran also includes the pedicel (tip cap). [1]
Intermediate Moisture (IM) - Foods that have some moisture but not enough to cause immediate spoilage. Examples include sausage and beef jerky . Natural Form (NF) - Commercially available, shelf-stable foods such as nuts , cookies , and granola bars that are ready to eat.