Development and Evaluation of a Functional Fiber-rich Bar Incorporating Lotus Stem and Carrot Pomace

Abstract

The aim of this study was to develop an energy bar high in fiber using carrot pomace powder and lotus stem powder, both of which are rich in essential nutrients such as protein, fat, carbohydrates, dietary fiber, and minerals. Dietary fiber bars were formulated utilizing carrot pomace, Lotus stem powder, oats, date puree, honey, pumpkin seeds, almonds, cashews, sesame seeds, and dark chocolate. The consumption of dietary fiber may diminish appetite and lead to an extended sensation of satiety following ingestion. Four distinct formulations of the bar were developed, referred to T0, T1, T2, and T3, incorporating 10 grams, 15 grams, and 20 grams of Fibre Rich Powder, derived from lotus stem and carrot pomace. The formulation deemed optimal, T1 (15 g), was chosen based on sensory evaluations including color, texture, flavor, and overall acceptability. These bars were assessed for their physical characteristics (such as colour, water activity, and hardness) as well as their organoleptic properties. The final composition comprised 437.17 kcal of energy, with a distribution of 23.7% total protein, 47.23% total carbohydrates, 17.05% total fat, 9.48% dietary fiber, 9.88% moisture, and 2.08% total ash. The formulation with 15 g of the fiber-rich powder (T1) exhibited the best overall sensory qualities, making it the most appealing choice for consumers. This study addresses the gap in functional food development by leveraging agricultural by-products to enhance nutritional value. These fiber bars present a convenient option for those seeking to maintain fullness and occasionally skip meals.