Ermat Shermatovich Sanayev, Maksumova Dilrabo Kuchkarovna, Shokirova Mukaddas Musakhonovna and Islamov Fayyozbek Shakhobiddin ugli 2023. CLASSIFICATION OF AGRICULTURAL SECONDARY RAW MATERIALS EXTRACTION OF PECTIN FROM SECONDARY RAW MATERIALS . World scientific research journal. 11, 1 (Jan. 2023), 154–157.