Flavor of Peanut oil: An overview of odorants, analytical techniques, factors affecting flavor characteristics

Peanut oil is appreciated for its high nutritional value and distinctive properties, also recognized as one of the major vegetable oils. Flavor is a significant characteristic that not only determines the quality of peanut oil but also significantly influences consumer acceptance. The odor-active compounds in hot-pressed and cold-pressed peanut oil, flavor analysis methods (extraction, qualitative, quantitative, and sensory evaluation), and the effects of raw materials, pretreatment techniques, and oil extraction methods on peanut oil flavor have been thoroughly examined in this review. Possible production paths of some important aroma-active chemicals are also suggested, along with a list of more than two hundred odorants found in hot and cold-pressed peanut oil from the literature. Future challenges in flavor analysis approaches lay in the successful connection of experimental data with sensory experience. Processing techniques should be further improved to produce peanut oil with superior flavor and nutrient content.