A Short Review On Vacuum Frying-A Promising Technology For Healthier And Better Fried Foods
Vacuum fried products contain lesser oil content, but this is not only the single health benefit of vacuum fried products. Lower operating temperature during vacuum frying; reduce 94% of acrylamide formation in potato chips. Acryl amide is recognized as a potential carcinogenic compound found in fried snacks, which is formed by the Maillard reaction.
From [International Journal of Nutrition and Health Sciences Volume 1 Issue 2 June 2017]
Vacuum frying is developed method of conventional frying method under low pressure and low temperature, which improves the quality, attributes of fried food products. This technology is gaining popularity in modern days due to recent research findings establishing the relationship between conventional fried food consumption and human health problems. Vacuum frying on the other hand proves to be a better and healthier alternative option than conventional frying. Objective of this review paper is to provide the reader, comprehensive information about the basics of vacuum frying technology, recent research updates and possible research gaps. India being the leader of fruits and vegetable production, fails in adequate food processing/preservation due to inadequate storage infrastructure, incurring huge post-harvest losses every year. Vacuum frying process may be adopted as a method of food preservation or new product development, by overcoming the research gaps and proper commercialization of the technology in small as well as in large industrial scales.
What is a key to operate vacuum frying process? Keep a constant frying temperature, or a bit less fluctuation under a constant limited vacuum condition is one key point for a vacuum frying operation.
Vacuum frying snacks benefit that the crispness, flavor, structure and color of the products will be maintained. More importantly, acrylamide reduction in the process is achieved.
A vacuum fryer is a machine designed to fry vegetables, fruit, fish, and meat at low temperatures. The equipment has the ability to reduce the oil content of the food, sometimes well below 15 percent. It can also help to inhibit the loss of nutrients that commonly occurs with food cooked or fried at high temperatures. The vacuum fryer also maintains the food item’s color, consistency and flavor. Food fried with this frying method can be stored for a longer time than other types of fried food.
