Food product technologies are central to modern food science, ensuring safety, quality, and consumer appeal. Bread production relies on yeast fermentation, where sugars are converted into carbon dioxide, giving the dough its soft, airy texture. Yogurt and cheese are examples of lactic acid fermentation, with bacteria transforming lactose into lactic acid, producing tangy flavors and thickened textures. Cheese also involves enzymatic coagulation using rennet, forming curds that are aged for distinctive taste. Preservation technologies such as canning use thermal processing to destroy microorganisms before sealing food in airtight containers, while freezing—especially Individually Quick Freezing (IQF)—locks in nutrients and freshness in vegetables. Fruit juices are pasteurized to eliminate pathogens while retaining flavor. Chocolate manufacturing employs conching to refine texture and tempering to stabilize fat crystals for a glossy finish. Brewing technology combines mashing, boiling with hops, and yeast fermentation to produce beer. Instant coffee uses spray‑drying or freeze‑drying to preserve aroma in soluble form. Margarine production applies hydrogenation to solidify vegetable oils, followed by emulsification to mimic butter’s consistency. These technologies illustrate how science transforms raw materials into safe, nutritious, and appealing products, highlighting the integration of microbiology, chemistry, and engineering in food processing.
- Teacher: sharon meli
