S. N. Kravchenko, A. O. Renzyaev, N. A. Stenina
Kuzbass State Agricultural Academy, ul. Markovtseva, 5, Kemerovo, 650056, Russian Federation
Abstract. Nowadays, the development of processing of agricultural raw materials is impossible without the elaboration and exploitation of new efficient equipment or processes. However, their inclusion in traditional technologies can lead to changes in quality characteristics of both intermediate and final products. Therefore, one of the conditions for the scientific validity of such developments should be the diagnostics of the corresponding technological flow. The studies aimed to evaluate the stability of the traditional and improved process flows of the rapeseed oil production. Traditionally produced rapeseed oil is of lower quality because the seeds are processed with the husk containing anti-nutritional substances that compromise its nutritional value and safety. The improved technological system of the rapeseed oil production provides for the introduction of subsystem B – separation of the seed coat, which includes the stages of seed hulling and seed coat removal. Rational parameters of hulling processes (gap between rollers – 1.1 mm, rotational speed of roller No. 1 – 100 rpm, roller No. 2 – 200 rpm) and air separation (air flow speed – 7.1 m/s) were established. At the outlet of the subsystem B of the separated material under rational operating conditions the core accounted for 95%; seed coats – 2%; undehulled seeds – 3%. The stability of subsystem C – oil production increased to η=0.92 compared to the traditional process flow (η=0.57). This resulted in an increase in the integrity level of the improved rapeseed oil production system by 0.21. Acid, peroxide, and colour values are reduced in rapeseed core oil, which improves its quality characteristics and reduces costs during further processing. The seed cake remaining after oil expression from the refined kernel has a higher nutritional value due to the increase in protein content from 33.6% to 50.8%.
Keywords: rapeseed oil; process flow; diagnostics; integrity; stability; subsystem; seed hulling; air separation.
Author Details: S. N. Kravchenko, D. Sc. (Tech.), prof. (e-mail: Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.); A. O. Renzyaev, Cand. Sc. (Tech.), assoc. prof.; N. A. Stenina, Cand. Sc. (Tech.), assoc. prof.
For citation: Kravchenko SN, Renzyaev AO, Stenina NA. Evaluation of the stability of an improved rapeseed oil process flow. Dostizheniya nauki i tekhniki APK. 2022;36(6):89-93. Russian. doi: 10.53859/02352451_2022_36_6_89.