Development of technology for obtaining lycopene- containing tomato-oil extract for food purposes

In industrial conditions, the processing of tomatoes using affordable technology with the preservation of valuable biologically active compounds is very relevant. Kazakhstan does not have an effective deep processing technology for vegetable products, including tomatoes, and the available technologies are not perfect. Consequently, the scientific work being developed, connected with the technology of processing tomatoes, and with the production of its pomace - a dry powder containing biologically active substances, as well as with its deeper processing for food enrichment, is promising. The development of an optimal technology of lycopene-containing tomato-oil extract from dry tomato powder for the purpose of enriching food products with a natural health effect and ecological purity is new for Kazakhstan, and its introduction has great social and economic significance. The aim of the work is to develop a technology for obtaining lycopene-containing dry powder from the pomace of zoned tomato varieties, obtaining lycopene-containing tomato oil extract (LTME) from it for food purposes, which has a natural health effect and studying its qualitative indicators. In the course of the work, the optimal technological mode of extraction was determined, in particular, the temperature regime of 50 °C, the exposure time (30 minutes), the ratio of raw materials and sunflower oil (1:4) to obtain a lycopene-containing tomato-oil extract from dried tomato juice. In the obtained lycopene-containing tomato-oil extract, the acid number was determined, which was at the level of: 0.30 mg KOH/g, peroxide number - 3.18 mmol ½ O2/kg, the content of β-carotene - 5.28/100 g, lycopene - 6.48 mg/100 g vitamin composition: vitamins A - (14.959 ± 1.49) mcg/100g; D3 - (21.073 ± 2.10) mcg/100 g and E - (81.343 ± 8.13) mcg/100 g. Based on the results obtained, an optimal technology for obtaining lycopene-containing tomato - oil extract of dry tomato powder for use in the food industry has been developed.