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Nettle leaf powder is an excellent source of nutritional compounds (proteins, minerals, fibers, carbohydrates) and biologically active compounds: terpenoids, carotenoids, fatty acids, various polyphenolic compounds, essential amino acids, chlorophyll, vitamins, etc., essential for the health of the human body. Therefore, nettle powder could be used as a nutritional supplement. The nutritional quality of the nettle powder can be influenced by the drying technique of the nettle leaves, respectively by the water cont...

Eggshells are one of the widely used by-products in the food processing and manufacturing industries. Due to the increased content of minerals, especially calcium and magnesium and less trace elements (iron, zinc, manganese, copper), chicken eggshell waste can be used in many agricultural activities as a mineral fertilizer, as an additive for improving the physical parameters of the soil, or reducing the accessibility of lead and cadmium from soils polluted with heavy metals, as a substitute for natural calcium ca...