TY JOUR TI Combined Surfactant and Enzyme-Assisted Extraction of Pectin from Hawthorn (Crataegus monogyna Jacq.) Fruits KW Hawthorn KW pectin KW galacturonic acid KW esterification KW extraction KW heavy metals JO Food Processing: Techniques and Technology AU Novikova, A.E. AU Skrypnik, L.N. PY 2022 IS 51 PB Kemerovo State University