Elemental Characterization of Termiye: Mineral Composition of Debitterized Lupin Seeds Cultivated at Different Locations

The utilization of marginal lands for agricultural production without input use is crucial for sustainable agriculture, the creation of new food sources, and regional development. The aim of this study was to highlight the value of termiye in terms of location-based mineral nutrition. This study used seed of lupin (Lupinus albus L.) as the material, grown without inputs and processed into termiye, a traditional snack. The debittered lupin seeds (termiye) were obtained from growers in five locations: Deşdiğin, Konakkale, Ketenli, Başköy, and Akçalar. Termiye seeds were analyzed separately for mineral composition using ICP-OES. According to the general average locations, macroelement contents were found to be 4398 mg kg-1 P, 3900 mg kg-1 Ca, 2332 mg kg-1 S, 846 mg kg-1 Mg, 782 mg kg-1 Na, and 135 mg kg-1 K. Microelements were determined as 1228.23 mg kg-1 Mn, 42.98 mg kg-1 Zn, 37.22 mg kg-1 Fe, 27.32 mg kg-1 B, 7.57 mg kg-1 Cu, and 0.68 mg kg-1 Mo. The Ca/P ratio ranged from 0.62 to 1.26, the Na/K ratio from 3.83 to 8.13, and the K/(Ca+Mg) ratio from 0.02 to 0.04. According to the results, the rich mineral content of termiye, known in a limited area as a traditional food, has been revealed according to locations. Although the Deşdiğin location stands out, it has been determined that termiye has high macro and micro nutrient contents in all locations. The ratios of elements to each other in termiye grains in all locations are also in the appropriate range in terms of nutrition. It was understood that lupin plant can be grown and used as termiye in all locations.