00566naa#a2200181#i#450# EN\\bibl\131746 20260804125123.2 3034-4689 20260702b2026####ek#y0engy0150####ca RU PECTIN SUBSTANCES OF THE EUROPEAN OLIVE (OLEA EUROPAEA L.) Journal article Kazan Kazan National Research Technological University 2026 4 с. Journal article local Ligay L. V. Stepanova Natalia Nikolaevna Adzhiahmetova Similla Leont'evna vestniktu.ru