The chemical composition of the juice and mountain ash fruit pomace (Sorbus aucuparia L.)

The purpose of the study is to determine the chemical composition of the juice and mountain ash fruit pomace. Objectives: to establish the chemical composition of the juice and rowan fruit pomace: mineral, fatty acid, vitamin. The results of determining the composition of the juice and mountain ash fruit pomace (Sorbus aucuparia L.), growing in the vicinity of the city of Krasnoyarsk, are presented. The collection of rowan fruits was carried out during the period of their technological maturity (September 2023). The results obtained showed that the protein content in the juice of rowan fruits was 0.0099 %, sugars - 3.47 %, minerals 3.15 %, including: calcium - 370.40 mg/kg; magnesium - 146.90; sodium - 738.10; potassium - 1617.00; phosphorus - 68.60; iron - 4.342 mg/kg. The protein content in rowan fruit pomace is 5.79 %; fiber -18.00; fat - 3.56; sugars - 7.60 %; carotene - 204.6 mg/kg; mineral elements - 2.19 %: calcium - 3959.00 mg/kg; magnesium - 1107.00; sodium - 3902; potassium - 7191.00 mg/kg; phosphorus - 451.20 mg/100 g; iron -106.20 mg/kg. The results of a study of the fatty acid composition of rowan fruit pomace showed that the composition contains polyunsaturated essential acids, such as LinoleicC18:2 / linoleic (58.5257 %), alpha-Linoleic (18:3 cis9.12) / alpha-linolenic (2.4116 %). The vitamin composition of the juice and rowan fruit pomace was determined. The content of ascorbic acid in rowan fruit juice was 0.0083 %, in pomace -0.0100 %, vitamin B5 in rowan fruit juice - 0.0067 g/kg, in pomace - 0.5220 g/kg, carotene in rowan fruit pomace - 204.60 mg/kg.