title: Ultrasound-assisted extraction of pectin from sisal waste.
abstract: In this study, an efficient ultrasound-assisted extraction (UAE) of pectin from sisal waste was investigated and optimized. Response surface methodology (RSM) based on a three-level four-factor Box-Behnken response surface design (BBD) was employed to optimize the extraction conditions (ultrasonic power, extraction temperature, extraction time and solid-liquid ratio). Analysis of variance showed that the contribution of a quadratic model was significant for the pectin extraction yield. The experimental yield (29.32%) was obtained under the optimal condition (ultrasonic power of 61 W, temperature of 50°C, time of 26 min and SL ratio of 1:28 g/ml) was well agreement with predicted values. Therefore, ultrasound-assisted extraction could be used as an alternative method to extract pectin from sisal waste with the advantages of lower extraction temperatures, shorter extraction time and reduced energy consumption.
authors.affiliation: Department of Food Technology, Kongu Engineering College, Perundurai, Erode 638052, Tamil Nadu, India. Electronic address: prakashmaran@gmail.com.
authors.forename: J Prakash
authors.initials: JP
authors.lastname: Maran
authors.affiliation: Department of Food Process Engineering, SRM University, SRM Nagar, Kattankulathur, Chennai 603203, Tamil Nadu, India.
authors.forename: B
authors.initials: B
authors.lastname: Priya
mesh_terms: D027882:Agave; D008962:Models, Theoretical; D010368:Pectins / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry*; D013696:Temperature; D014465:Ultrasonics; D014866:Waste Products
chemical_list: D014866:Waste Products; D010368:Pectins
keywords: Box–Behnken design; Optimization; Pectin; Sisal waste; Ultrasound assisted extraction