Knowledge Article
What do these factory terms actually mean? A plain-language explanation of three common processing methods.
Extraction uses a solvent—most commonly water or food-grade alcohol in food processing—to dissolve the target components in a raw material, then separate them from unwanted solid residue. Temperature, time, and the solvent ratio determine which components are dissolved and in what proportions.
The result of extraction is a liquid. It usually undergoes filtration and clarification before moving on to the next step.
Gelatinization refers to the structural changes that starch undergoes in the presence of water and heat. In processing root and tuber ingredients, this step is often used to alter the state of the starch, making it easier to separate from other components later.
Many root and tuber crops naturally contain a considerable amount of starch. Removing some of it can noticeably change the raw material’s solubility and mouthfeel, which is why many products specifically describe their processing methods.
Concentration reduces the water in a liquid through methods such as evaporation or membrane filtration, increasing the proportion of solids per unit volume. The “times concentrated” figure often used in industry describes the ratio between the amount of raw material put in and the final output. It is a process parameter and should be verified against the supplier’s written documentation.
Temperature control is one of the key variables during concentration: higher temperatures generally improve efficiency, but some components are heat-sensitive. For this reason, many processes extend the treatment time while using a lower temperature.
This article is general educational information about botany and food processing. It does not address any specific product and does not constitute medical or nutritional advice.
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