Ultrasound assisted citric acid mediated pectin extraction from industrial waste of Musa balbisiana

•Musa balbisiana waste is a good resource for pectin extraction.•Ultrasound assisted citric acid mediated extraction technique was employed.•All the extraction process parameters had optimistic influence on pectin recovery.•Make use of CCD statistical design, optimal condition was determined. The objectives of the present work are to extract pectin from industrial waste of Musa balbisiana by ultrasound assisted citric acid mediated extraction method and optimization was done through central composite statistical experimental design under response surface methodology. The outcomes of this study exhibited that, process variables (ultrasound power, pH and extraction time) had considerable influence on the pectin extraction. Second order mathematical equation was constructed to predict the data through regression analysis. The optimal extraction process condition was ultrasound power of 323w, pH of 3.2, extraction time of 27min and SL (solid-liquid) ratio of 1:15g/ml. The mean experimental yield of pectin (8.99±0.018%) was fine accord among predicted yield of pectin (9.02%).