Conference Abstract Book

Experimental design overview PECTIN EXTRACTION DRYING (45 °C) GRINDING STORAGE (4°C) MAE CSE ➢ Clossed vessel system ➢ 17 runs ➢ BOX BEHNKEN DESIGN 1:20 2 X FILTRATION CITRIC ACID MONOHYDRATE, 1 % (pH adjusted to 1, 1.5, 2) MANDARIN PEEL SOLID WASTE FILTRATE + 96 % EtOH FILTRATE FILTRATION PRECIPITATION PECTIN RESPONSES YIELD (%) AUA (%) DE (%) CHARACTERIZATION FTIR ➢ Water bath ➢ 85 °C / 2 h / optimal MAE pH FACTORS A: TIME (min) 1 – 3 – 5 B: POWER (W) 1000 – 1400 – 1800 C: pH 1 – 1.5 – 2 AUA—anhydrouronic acid content; DE—degree of esterification