Page 87 - Book of Abstracts

5 International Scientific Online Conference DOI: https://doi.org/10.15414/2021.9788055224015

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BIOCHEMICAL AND ANTIMICROBIAL PROPERTIES OF SCHIZANDRA CHINENSIS (TURCZ.)
BAILL. FRUIT POMACE EXTRACT
2
Elena Kuznetsova , Tatyana Bychkova , Houssam Alhusseini
1
1
1 Orel State University named after I.S. Turgenev, Orel, Russian Federation;
E-mail.: elkuznetcova@yandex.ru
2 Razumovsky Moscow State University of Technology and Management, Moscow, Russian Federation
Schizandra chinensis (Turcz.) Baill. – it is a plant species well known in traditional Chinese
medicine. Considering the pharmacology of the fruits of Schisandra chinensis, first of all,
researchers pay attention to antihepatotoxic, antioxidant, and anti-tumor activities. Schizandra
chinensis on the territory of Russia grows in the Far East region. The presence of rich chemical
composition in the fruits of the plant allows it to be used to obtain preparations of biologically
active substances intended for use in food technologies.
The study aims to obtain extracts from the pomace of Schizandra chinensis fruits and to
study their properties.
To obtain the marc, the fruit pressing operation was carried out. The pulp and some of
the cellular juice from the skin passed into the juice, and most of the membrane contents
remained in the pomace. Rational extraction methods have been established
experimentally. Schizandra chinensis fruit pomace was crushed, poured with water (hydro
module 1:30), the temperature was brought to 85 °C and kept at this temperature for 20
minutes, cooled, stirred with a magnetic stirrer for 1 time. Then, centrifugation was performed
at 4500 rpm for 10 minutes and the liquid phase was separated. To determine the biochemical
and antimicrobial properties of the extract, standard research methods were used.
It was found that the aqueous extract obtained from the pomace of the fruits of Schizandra
chinensis contained 6.9 % of dry matter. The extract contained reducing sugars in an amount
of 16.5 %, organic acids – 3.2 %, ascorbic acid – 12.6 mg%, flavonoids – 7.0 %, anthocyanins –
5.2 %. It is known that organic acids, flavonoids, and anthocyanins are substances that
determine the antioxidant and antimicrobial properties of the product. Research results show
that the aqueous extract of the pomace of the fruit of Schisandra chinensis is rich in
minerals. The extract found calcium – 120.1, magnesium – 60.0, phosphorus – 104.3, potassium
– 130.1, iron – 8.72, zinc – 3.86 mg/kg. The extract satisfies man's daily requirement for 15 %
magnesium, 87.2 % iron, 32.16 % zinc.
The antioxidant activity of the aqueous extract was 47.2 % inhibition of the DPPH radical.
Studies were carried out on the antimicrobial properties of the extract obtained against
test cultures of Staphylococcus aureus and Escherichia coli. The diameters of the non-growing
areas of Staphylococcus aureus were found to be 8.8 ±0.2 and that of Escherichia coli to 10.1 ±0.2
mm. These values indicate high antimicrobial activity against the bacteria studied.
Thus, the studies carried out have shown that the extract of fruit pomace of Schisandra
chinensis contains biologically active substances responsible for antioxidant and antimicrobial
properties against Staphylococcus aureus and Escherichia coli, and also has a rich mineral
composition. The resulting extract can be used in the production of syrups and carbonated
drinks with prophylactic properties.
Keywords: Schisandra chinensis, fruit pomace, properties.

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5 International Scientific Conference Agrobiodiversity for Improving the Nutrition, Health, Quality of Life and |86
Spiritual Human Development
November 3 2021
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