TY JOUR TI THE STUDY OF THE PROPERTIES OF PECTIN OBTAINED FROM SECONDARY RAW MA-TERIAL RESOURCES OF BERRY RAW MATERIALS OF ALTAI REGION KW pectin KW secondary raw materials KW fruit-berry raw material KW degree of esterification KW the elasticity and density of gels KW rheological properties of pectin KW gelling ability JO Bulletin of KSAU AU Averiyanova, E.V. AU Shkolnikova, M.N. AU Chaplygina, I.A. PY 2016 IS PB Krasnoyarsk State Agrarian University