Evaluation of Physicochemical Properties and Antioxidant Activity of Chicken Meatballs by Substitution of Tapioca Flour with Purple Sweet Potato

Abstract

Purple sweet potatoes are widely used as a source of antioxidants and natural dyes in food products. This study aimed to evaluate the physicochemical properties and antioxidant activity of substitution of tapioca flour with purple sweet potato flour. The treatments employed were the substitution of tapioca flour (T) with purple sweet potato (P) with a ratio of 20:0; 15:5; 10:10; 5:15, and 0:20 (meat weight basis). Variables measured were nutrient content, pH, cooking loss, water holding capacity (WHC), Colour, anthocyanin content, and scavenging activity. The results showed that the substitution of tapioca with purple sweet potato did not affect the nutritional content except for crude fiber content, and pH of chicken meatballs. However, it increased the cooking loss, anthocyanin content, redness, and scavenging activity, and decreased the WHC and brightness (L*). It could be summarized that the substitution of the tapioca flour with purple sweet potato increased the functional properties of the chicken meatball without any changes in nutritional, pH value, and physical properties of the chicken meatballs.

The Effects of Purple Corn Pigment on Growth Performance, Blood Biochemical Indices, Meat Quality, Muscle Amino Acids, and Fatty Acids of Growing Chickens

“…Amer et al [13] found that the inclusion of anthocyanin-rich roselle, Hibiscus sabdariffa L. extract, could improve chicken antioxidant potential by increasing serum total antioxidant capacity (TAC) and superoxide dismutase (SOD) concentrations and by decreasing serum malondialdehyde (MDA) level. Additionally, Hajrawati et al [14] demonstrated that anthocyanin-rich purple sweet potato flour could increase the cooking loss, anthocyanin content, redness, and scavenging activity of chicken meatballs.…”