Sunflower oil is one of the most widely consumed edible oils globally, but its processing presents a unique challenge – dewaxing (also known as winterization). Waxes originate primarily from the sunflower seed hull (seed coat) and dissolve into the crude oil during pressing or solvent extractio…

Walnut oil is loved by consumers for its rich nutritional value (high unsaturated fatty acids, vitamin E, etc.) and unique flavor. However, whether obtained by cold pressing or hot pressing, crude walnut oil contains impurities such as phospholipids, free fatty acids, pigments, odorous substan…