Evaluation of Nutritional Properties and Consumer Acceptance of Hydroponic Carrots (Daucus carota L.) Grown Under Different Light Intensities and CO2 Concentrations

This study evaluated three groups of four hydroponic carrots grown in different lighting and CO₂ levels. Moisture, β-carotene, ash, color, texture and consumer acceptance were assessed. For Group I, II and III, moisture content ranges were 81.9-92.4%, 81.9-91.2%, 85.4-89.2%, respectively. β-Carotene content ranged from 3295-10486, 3978-14664, and 5802-21360 μg/100 g for Group I, II and III, respectively. Ash ranged from 0.5 to 1.7%. Color L* value range was 53.7-62.2. Consumers moderately liked the color and slightly liked the crunchiness of the carrots tested. Carrots under low light generally had higher moisture content. However, the other measures were variable.