Application of Blue Honeysuckle Powder Obtained by an Innovative Method of Low-Temperature Drying in Skincare Face Masks

Traditional technologies applied for obtaining plant raw materials for cosmetic production are based primarily on high-level processing, which is reflected in the qualitative composition of the resulting materials. By using low-temperature drying, it is possible to retain in the raw materials a range of valuable ingredients. In this study, blue honeysuckle powder was used as an ingredient of cosmetic face masks. The stability of the masks was evaluated. Dynamic viscosity, yield point and texture analysis of the cosmetics was performed. The color of the emulsions and the level of skin hydration after face mask application was determined. Emulsions were found to be stable. A decrease in dynamic viscosity of the emulsions as a function of increasing concentrations of the additive and under the conditions of rising rotational speed were observed. Similarly, an increase in the concentration of blue honeysuckle in the emulsions resulted in a decrease in the value of the yield point. Based on the results, it can be stated that the addition of blue honeysuckle caused a decrease in hardness of the masks, while the opposite trend was observed for adhesive force. It was found that an increase in the concentration of blue honeysuckle gave a reddish-yellow color to the samples. Corneometric assessment confirmed proper skin hydration after the application of the emulsions.

The study of growth of blue honeysuckle sprouts (Lonicera caeruleae L.) in the conditions of North-East of the European Russia

The aim of the research is to study characteristics of sprout growth of 13 blue honeysuckle variety samples for evaluation of their viability in the conditions of Kirov region. Recordings and observations were carried out since 2018 to 2020 on the collection area (2017 year of planting). The length of a one-year growth was measured on three even-aged plants of each variety sample ten days after the moment of sprout growing till the end of growth. The length of 20 sprouts of the first-order renewal located according to four corners of the earth, was recorded on one plant. The sprout growth began from the 2nd to the 11th of May. Over the studied time an average duration of a growing period was 49.0 days. The variety Masha was distinguished for maximum duration in 2018 (55 days), the varieties Omega, Lenarola, Goluboy Desert (Blue Dessert), Laura and Dark-Blue № form had the minimal one in 2019 (42 days). Maximum length of the one-year growth was observed for the variety Renata (20.6±4.1 cm), Goluboy Desert (Blue Dessert) (20.8±5.2 cm) and Malvina (25.6±5.7 cm). The analysis of the dynamic of sprout growth showed that in the conditions of the studied period the maximum growth was observed in the first (33.8 %) and in the second (35.3 %) decades of growth – approximately, from the middle of May till the first decade of June. The decrease in intensity of sprout growth was noticed in the third decade – an average growth was 21.2 % (from 14.2 % in 2018 to 28.8 % in 2020). The fourth and fifth decades were characterised by fading of growth processes – intensity of growth was 5.9 % and 3.9 %, respectively. The contribution of the secondary growth to an annual growth did not exceed 26 % for Lenarola variety and 20 % for Goluboy Desert (Blue Dessert). The varieties, which had Turchaninov honeysuckle (Lonicera turczaninowii Pojark.) in their breeding record, did not differ in intensity and duration of sprout growth from the descendants of Kamchatka honeysuckle (Lonicera kamtscatica (Sevast.) Pojark.). An obconical shape of the bush prevailed among the studied variety samples (6 varieties or 46.2 %). All the studied variety samples of honeysuckle showed high viability in the conditions of the Kirov region.

VARIABILITY OF THE INDIVIDUAL-GROUP COMPOSITION OF POLYPHENOLS OF THE FRUITS AND LEAVES OF BLUE HONEYSUCKLE SAMPLES OF DIFFERENT ECOLOGICAL AND GEOGRAPHICAL ORIGIN IN THE OB FOREST-STEPPE

The aim of the study was to compare the variability of the composition, chemical identity and content of biologically active phenolic compounds in the fruits and leaves of the blue honeysuckle (Lonicera subsection Caeruleae) plants of different environmental and geographic provenances, sampled from the introduction plantation station in the forest steppe zone near the Ob River (Novosibirsk, Russia). In extracts from the leaves 25 individual compounds representing various polyphenolic classes were identified using HPLC-MS technique; seven of the compounds were identified as hydroxycinnamic acids, five compounds were flavonols, and eight compounds represented flavones. The maximal number of individual compounds was present in samples of the Altai subspecies of the tetraploid species L. caerulea subsp. altaica, whereas the minimal number was detected in samples of L. boczkarnikowae, a diploid species from the Russian Far East (Primorsky region). The lowest total polyphenolics content (6,260 mg/100 g of air-dry phytomass) was found in samples of L. caeruleae subsp. pallasii, whereas the content in samples from other blue honeysuckle subspecies ranged within 11.620-14.030 mg/100 g of air-dry phytomass. High content of flavones in extracts from leaves, always exceeding the flavonol content, was found to be a characteristic feature of L. caerulea subsp. altaica. Among L. сaerulea subspecies, L. сaerulea subsp. pallasii was shown to have the largest ratio of flavonols to flavones. L. boczkarnikowae also had high content of flavonols, significantly exceeding the flavones content in the plants organs. The main component of anthocyanins was cyanidin-3-glucoside, accounting for up to 91%. The fruits of L. caerulea subsp. altaica, L. сaerulea subsp. venulosa and L. boczkarnikowae had the highest anthocyanin content, ranging 2.950–3.200 mg/100 g air-dry phytomass, whereas the fruits of L. сaerulea subsp. pallasii had the lowest one (1,573 mg/100g). Extracts from the leaves were found to have significantly higher polyphenolics content as compared to the ones from the fruits; thus the leaves can be recommended as a prospective medicinal source.

Perspectiva cultivării plantelor de Lonicera caerulea L. în Grădina Botanică Națională (Institut) „Alexandru Ciubotaru” din Republica Moldova

The peculiarities of growth, development and the prospects of cultivating edible blue honeysuckle are described in the article.