Organization standard for the processing of industrial raw materials - the outer scales of the onion
The availability of external onion scales and the high biological activity of its components determine the prospects for the use of external scales in the food industry. The high content of polyphenols and quercetin in dry onion scales suggests the possibility of its use as a source of natural antioxidants. There is no doubt about the potential use in the food industry of dry onion scales that do not require special drying and contain extremely high concentrations of flavonoids and other polyphenols. These compounds have high antioxidant activity, and according to this indicator, onion quercetin ranks first among other natural flavonoids. The Federal State Budgetary Scientific Institution “Federal Scientific Vegetable Center” has developed a draft organization standard for the processing of industrial raw materials - the outer scales of onions. The standard applies to powders of the outer scales of onions obtained by convective and freeze-dried (freeze-dried) drying methods intended for industrial processing.