Page 95 - Book of Abstracts

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

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CONTENT OF ANTHOCYANINS IN THE ABOVEGROUND ORGANS OF PLANTS
AKEBIA QUINATA (HOUTT.) DECNE
Volodymyr Levon, Mykhailo Zhurba
M.M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine
Kyiv, Ukraine; E-mail.: vflevon@gmail.com
Currently, an urgent task is to find new plants that can be used in medicine for kidney and
bladder diseases. A promising plant in this regard is Akebia quinata (Houtt.) Decne., which has
palmate-compound leaves and delicious inflorescences that are chocolate-scented. Due to this
fact, the plant was named chocolate vine.
A. quinata native to China, Japan, and Korea, naturalized and invasive in New Zealand, USA,
Belgium. It is used as a diuretic and has a beneficial effect on the functioning of the kidneys and,
accordingly, the bladder. A. quinata will also help to relieve inflammation and helps to fight
colds and infectious diseases. In addition, such an interesting fruit helps to get rid of swelling
on the throat and reduces the temperature, fights fever. They are used in folk medicine not only
the fruit of the vine itself but also the leaves, as well as the stems. They are used to make
decoctions and teas, which in turn have a tonic effect on the human body.
It is known that the stems of akebia contain betulin, hederagenin, inositol, oleanolic acid,
akebosides, stigmasterin, sucrose, daukosterol, potassium salts. The fruits of the plant contain
vitamins B1, B2, and B6, ascorbic acid, vitamin E, iron, zinc, phosphorus, manganese, potassium,
sodium, palmitic, oleic, and linoleic acids.
The purpose of our work was to study the content of anthocyanins in the aboveground
organs of Akebia, since there are no data on these studies in the literature.
The objects of research are cultivars and varieties of A. quinata, namely, Ametyst,
Shirobana, Silver Bells, Rosea, AQ-02, AQ-03, AQ-04. The samples were taken at the beginning
of the growing season, during flowering and fruiting. Stems, leaves, flowers, and fruits were
collected from the plants of collection of Department of Acclimatization of Fruit Plants in M.M.
Gryshko National Botanical Garden (Kyiv, Ukraine) during 2019–2020.
When studying the content of anthocyanins in the bark, leaves, and flowers of Akebia
quinata genotypes, it was found that the highest content of anthocyanins is in the leaves (435–
870 mg/100 g DM). The content of anthocyanins in the flowers of A. quinta genotypes is quite
wide (147–696 mg/100 g DM). The highest content of anthocyanins in the leaves and flowers
of A. quinata is the variety AQ-03, 810, and 696 mg/100 g DM, respectively. The bark of A.
quinata plants has a significantly lower content of anthocyanins than leaves and flowers: 55–
225 mg/100 g DM.
It is interesting to note the fact that there is a significant difference between the content
of anthocyanins in creeping and ordinary sprouts of A. quinata. In creeping sprouts, the content
of anthocyanins is significantly higher than in climbing shoots, the difference is in the range of
31–91 %. We explain this by the fact that the creeping sprouts are exposed to more intense solar
radiation, which can cause more active biosynthesis of anthocyanins.
When studying the content of anthocyanins in the fruits of varieties and forms of Akebia
quinata plants, it was found that the content of anthocyanins is within fairly wide limits. The
highest content of anthocyanins is found in the fruits of variety AQ-04 (88 mg/100 g DM) and
cultivar Ametyst (72 mg/100 g DM).
Studies have shown that the aboveground organs of A. quinata plants have a high content
of anthocyanins. This indicates that the studied plants are of interest to the food and
pharmaceutical industries and can serve as raw materials for the production of P-vitamin
preparations.

Keywords: Akebia quinata, aboveground organs, anthocyanins.

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5 International Scientific Conference Agrobiodiversity for Improving the Nutrition, Health, Quality of Life and |94
Spiritual Human Development
November 3 2021
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