In recent years, celiac disease has become known to the public with the development of medical diagnosis possibilities and increased awareness of the celiac disease. The only cure for celiac disease is a gluten-free diet that must be strictly followed for perpetuity. Food products with gluten content lower than 20 ppm are considered gluten-free products. With the increase in the number of people with celiac disease and people on a gluten-free diet, the amount and variety of gluten-free products have increased significantly. Rice and corn are the raw materials of gluten-free products. However, this situation causes people who follow a gluten-free diet to be exposed to a uniform diet and deficient in the intake of essential elements such as copper, iron, and manganese. In this study, 41 gluten-free products in Turkey were examined with ICP-OES as copper, iron, manganese, zinc, and strontium content, and the results were reported. The samples with the highest Cu concentration were corn and puffed rice at 51.45 mg/kg and vermicelli at 32.40 mg/kg. Chocolate sauce and cornflakes were the samples at 137.43 mg/kg and 117.20 mg/kg, respectively, with the highest Fe concentration. The highest Mn concentration was precooked chickpea flour at 20.80 mg/kg. The highest strontium concentration value was 12.85 mg/kg in carob flour. The samples with the highest Zn concentration were determined in yeast at 91.98 mg/kg and pistachio croquant at 85.50 mg/kg.

Molybdate, an oxidized form of molybdenum, facilitates molybdenum to be taken into cell, and thus to be included as a cofactor in the structure of enzymes necessary to ensure homeostasis. Although this compound provides the catalysis and electron transport of many biochemical reactions, it causes serious health problems in animals at high concentrations. For this reason, its recovery of water resources is one of the main subjects of scientific studies called bioremediaiton. One of the advantages of the remediation is that the biomass obtained from algae increases the amount of lipids, which are the raw material source for the biofuel production. For this purpose, the bioremediation abilities of Desmodesmus pannonicus and Scenedesmus aldavei algae were spectrophotometrically evaluated by using growth rate, chlorophyll-a, chlorophyll-b and total carotenoids for fourteen days. The bioremediation properties were also determined using Inductively coupled plasma - optical emission spectrometry (ICP-OES) analysis. D. pannonicus and S. aldavei algae have bioremediation capabilities up to 1 mg mL⁻¹ Na₂MoO₄ concentration. The lipid content increased at all concentrations in S. aldavei and at 200 μg mL⁻¹ in D. pannonicus. However, the Mo (VI) contents in dry mass changed depending on the increase of concentrations. Fourier Transform InfraRed Spectrometer analysis (FT-IR) was utilized to identify the alterations of specific functional groups such as carboxyl, amine, hydroxyl, and carbonyl in the samples. As a result, D. pannonicus and S. aldavei have great potential for Mo(VI) bioremediation. D. pannonicus and S. aldavei can tolerate Na₂MoO₄ up to 1 mg mL⁻¹ concentrations and the lipid content used in biofuel production was increased during this process.