
Professor of Biochemistry – Faculty of Agriculture, Beni Suef University, and Head of the Nutrition Department – National Institute of Ageing Sciences.
Fried potato chips are one of the most consumed snacks globally. However, traditional deep-frying faces severe health criticisms, not only due to its high fat content but also because of the formation of acrylamide, a chemical compound produced when starches are cooked at high temperatures and classified as a potential carcinogen.
Consequently, scientific research has turned towards "air frying" and "vacuum frying" techniques as promising alternatives. But what is their real impact?
To understand the role of these new techniques, we must first understand the Maillard Reaction; a chemical reaction that occurs between reducing sugars and amino acids (such as asparagine) in potatoes when temperatures exceed 120 degrees Celsius.
A. Air FryingThis technique relies on circulating very hot air at high speed around the potatoes with a minimal amount of oil.
B. Vacuum FryingThis process takes place in sealed devices under low pressure, allowing water to evaporate at temperatures below 100 degrees Celsius.
By comparing these techniques with the traditional method, the results concluded the following:
Based on the results of these studies, the quality of homemade potatoes can be improved by following these steps:
Important Note: We should always aim for a light golden color; the darker (browner) the color, the higher the acrylamide concentration.
In conclusion:The shift towards air frying and vacuum frying technologies represents a significant step in balancing delicious taste with food safety. These techniques not only reduce calories but also protect our bodies from chemical combustion byproducts, making "French fries" a beloved and less harmful meal for everyone.