Preliminary research on garlic peel powder as a source of essential mineral elements

Ariana-Bianca Velciov, Georgeta-Sofia Popescu, Antoanela Cozma, Liliana Brei, Daniela Stoin, Virgil-Dacian Lalescu, Laura Rădulescu, Corina-Iuliana Megyesi, Maria Rada

Volume 30, Issue 4;
Pages: 463-470; 2024
ISSN: 2069-0053 (print), Agroprint;
ISSN (online): 2068-9551

Abstract

Garlic peel, by-product obtained from peeling garlic bulbs (Alium sativum L.) contains important amounts of proteins, fibers, minerals, carbohydrates and a number of biologically active compounds. The purpose of this paper was to determine the content of mineral elements in the garlic peel obtained by peeling the local white garlic bulbs sold in local markets and to evaluate their mineral intake. The average values obtained when determining the mineral content: 30.23 mg/100g Na, 1786 mg/100g K, 6074 mg/100g Ca, 542 mg/100g Mg, 5.74 mg/100g Fe, 0.382 mg/100g Mn, 2.51 mg/100g Zn, and 0.816 mg/100g Cu, shows that the analyzed garlic peel samples contain increased amounts of macro and microelements essential for the proper functioning of the body. The results obtained from the evaluation of the mineral intake show that, under the conditions of the present experiment, a quantity of 50 g of garlic peel covers different percentages of the daily requirement of some mineral elements: 1.01% Na, 26.3% K, 304% Ca, 64.5% Mg, 35.9% Fe, 8.30% Mn, 11.41% Zn, 45.33% Cu – for men aged between 19-50 and 1.01% Na, 34.5% K, 304% Ca, 87.4% Mg, 15.9% Fe, 10.6% Mn, 15.7% Zn, 45.33% Cu – for women aged between 19-50 years. These values suggest that the investigated garlic peel could be taken into consideration for obtaining products with added mineral content, especially in the case of calcium, potassium, copper and iron. The superior utilization of garlic peels can provide an ecological method of reducing the waste resulting from peeling garlic bulbs.