Tacca tubers (Tacca leontopetaloides) are a tuber plant variety that is neglected and underutilized. Understanding tacca tubers' nutritional and anti-nutritional composition is necessary as a scientific basis for their development in the food industry. This study aims to evaluate the proximate composition, nutritional, and anti-nutritional compounds of tacca tubers grown in various regions in Indonesia, in particular Garut, Bangkalan, and Sumenep. As a result, the growing location did not affect the proximate composition (crude protein, ash, crude fiber, and fat) of tacca tubers except for water content. Significant differences were observed in starch content (25.77-32.43 %), vitamin C (11.85-14.32 mg/100 g), and vitamin E (0.25-0.42 mg/100 g). The growing location also significantly influences tacca tubers' mineral components (phosphorus, magnesium, calcium, iron, copper, zinc, sodium, and potassium). In addition, anti-nutritional compounds such as phytic acid (633.25-538.80 mg/100 g), tannin (45.43-64.03 mg/100 g), oxalate (201.14-338.01 mg/100 g), cyanide (2.17-3.05 mg/100 g), alkaloids (253.68-487.91 mg/100 g) and saponins (97.54-105.24 mg/100 g) in tacca tubers identified in different amounts at each growing location. In conclusion, tacca tubers Indonesia from Garut contain a high starch component. This potential can be an energy source, especially for coastal communities. Thus, tacca tubers can support creating a sustainable food system in Indonesia.
Read full abstract