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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 .
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 ...
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 ]
Modified atmosphere/modified humidity (MA/MH) packaging is a technology used to preserve the quality of fresh produce so that it can be sold to markets far away from where it is grown, extend the marketing period, and to help suppliers reduce food waste within the cold chain. Commercial examples of MA/MH include sea freight of Galia and ...
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.
Both Food Technology and the Journal of Food Science can be accessed in print or online. Other publications are shown below: The Journal of Food Science Education or JSFE (2002 – Online only) – This quarterly journal deals with innovations, techniques, and methods to improve education in food science and technology. [24]
Foods categories such as fresh produce, frozen foods, irradiated foods, fresh fish, canned foods, etc. have regulatory requirements and special packaging needs. Package testing often relates to: Food safety Compatibility of the package with the food Migration of material from the packaging to the food Shelf life