TY - JOUR AB - Purpose The purpose of this study is to extract psyllium mucilage and evaluate its antioxidant compounds (in the best extraction condition) and its application in a chocolate drink.Design/methodology/approach First, the extraction by ultrasonic bath was evaluated, followed by water bath extraction, and as there was no difference between the methods, a water bath experimental design was carried out to evaluate the best extraction conditions for psyllium mucilage, having response variables, yield and emulsion stability. A chocolate drink with psyllium mucilage was produced and evaluated in the best extraction condition to compare with xanthan gum.Findings The best extraction conditions for psyllium mucilage were 60°C for 2 h and 1:80 ratio (seed:water). It can be verified that psyllium is rich in antioxidant compounds (0.71 mg GAE/g and 6.67 Mmol ET/g by 2,2′-azinobis (3-ethylbenzthiazoline sulfonic acid-6), and 9.65 Mmol ET/g for ferric reducing antioxidant power), which can greatly contribute to its application in food products. The use of mucilage in chocolate drink is feasible, as among its several attributes there was no significant difference between samples, highlighting texture attributes in which mucilage samples did not differ from the control containing xanthan gum (being the grades approximated 6.84).Originality/value Psyllium presented several antioxidant compounds that are very desirable in food products. In the chocolate drink, psyllium mucilage showed potential use as a thickener, so it is important for further studies to improve the product’s development, but it is currently feasible to be produced in an industrial scale. VL - 50 IS - 6 SN - 0034-6659 DO - 10.1108/NFS-07-2019-0211 UR - https://doi.org/10.1108/NFS-07-2019-0211 AU - Souza Gabriela AU - Siqueira dos Santos Suelen AU - Bergamasco Rita AU - Antigo Jessica AU - Madrona Grasiele Scaramal PY - 2020 Y1 - 2020/01/01 TI - Antioxidant activity, extraction and application of psyllium mucilage in chocolate drink T2 - Nutrition & Food Science PB - Emerald Publishing Limited SP - 1175 EP - 1185 Y2 - 2024/04/25 ER -