Биологические ресурсы Urtica dioica L.: направления исследований и перспективы использования

Чернявских, В.И.

doi:10.18413/2658-3453-2019-1-3-131-149

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…Crude fiber, which is usually determined in phytomass, includes a fraction of lignin, which can reduce the nutritional value of feed [38,50].…”

Section: Discussionmentioning

confidence: 99%

“…Breeding work with this valuable crop, both in the world and in Russia, is poorly conducted. Several varieties have been created and introduced into cultivation in Germany (Urimed, Saluica), and the Panacea variety was registered in Belarus in 2002 [38].…”

Section: Introductionmentioning

confidence: 99%

“…Work on the study of the biological resources of U. dioica L. in the European south of Russia (geographically in the south of the Central Russian Upland) began in 2002. The region possesses vast biological and genetic plant resources of various valuable species of the families Lamiaceae, Fabaceae, Asteraceae, Urticaceae, and others [38,39].…”

Section: Introductionmentioning

confidence: 99%

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Observations on the Productivity of Breeding Specimens of Urtica dioica L. from European Russian Ecotopes in Comparison with the Breeding Variety under Field Crop Conditions

Косолапов

Cherniavskih

et al. 2021

Agronomy

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Nettle is most often studied as a spinning plant, as a source of biochemicals and environmentally safe fungicides. Major studies are mostly conducted on natural samples and plant populations. Prospects for the use of plant biological resources of stinging nettle (Urtica dioica L.) from the Cretaceous south of the Central Russian Upland to create cultivars for a wide range of applications are considered. The aim of the study is to investigate the productivity of fresh weight and its biochemical composition in the variety of stinging nettle Avicenna, created on the basis of the initial material selected in the Belgorod region of Russia and patented in 2019, and new promising cultivars UD 32/06 and UD 12/16. The experiments were carried out by the split plot method with full randomization in four replicates. The cultivars UD 32/06 and UD 12/16 reliably surpass the Avicenna cultivar in the collection of fresh mass weight by 16.6–22.7% and 23.1 to 27.8%, dry weight by 11.4–28.7% and 1.9–32.7%, and seeds by 19.7–32.0% and 23.2–40.0% accordingly. Analysis of variance showed a significant effect of the factor “Cultivar” on the productive traits “Fresh weight yield” (strength influence 87.2%), “Dry weight yield” (strength influence 43.9%), and “Seed yield” (h2x = 61.6%). The content of crude protein in dry weight of the Avicenna and new varieties is 21.1–24.2%, crude fat: 2.5–4.2%, fiber: 12.0–14.8%. High content of ascorbic acid, calcium, phosphorus, iron, and zinc were observed in all material tested. It is concluded that the biological resources of the wild-growing forms of Urtica dioica L. from the European south of Russia are a valuable source material for obtaining varieties, and varieties with high productivity of the aboveground mass and stable seed productivity. The obtained research results prove the usefulness of nettle cultivation.

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“…Crude fiber, which is usually determined in phytomass, includes a fraction of lignin, which can reduce the nutritional value of feed [38,50].…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Observations on the Productivity of Breeding Specimens of Urtica dioica L. from European Russian Ecotopes in Comparison with the Breeding Variety under Field Crop Conditions

Косолапов

Cherniavskih

et al. 2021

Agronomy

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Climate Warming and Changes in the Reproductive Capacity of Woody Plants

Tkachenko¹,

Firsov²,

Volchanskaya³

2021

Fundamental and Applied Scientific Research in the Development of Agriculture in the Far East (AFE-2021)

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Carotenoids and Chlorophylls When Present Together: Analytical and Technological Features

Kuregyan,

Pechinskii,

Markaryan

2023

Problems Bio Med Pharm Chem

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Relevance.An analytical approach to choosing the direction of technological research has always been relevant, and taking into account the produc-tion of drugs using “green” extractants, the justification of technological parameters of extraction and its analytical support on models of already known, widely studied and used plant objects, for example, stinging nettle (Urtica dioica L.), can be considered as rational. The purpose of the study is an analytical study of carotenoids and chlorophylls in the co-presence of stinging nettle leaves and the rationale for the temperature regime for obtaining an oil extract from this plant, taking into account the co-presence of pigments in the extracts. Material and methods. The content of carotenoids and chlorophylls in raw materials and oil extracts was determined by spectrophotometry. Oil ex-tracts were obtained by fractional maceration at two temperature conditions: 25 °C and 50 °C. Results. The content of carotenoids and chlorophylls when jointly present in stinging nettle leaves was determined by spectrophotometry. When ob-taining six model oil extracts of stinging nettle leaves, the temperature regime was experimentally optimized at 50 °C; the optimization parameter was the quantitative content of carotenoids and chlorophylls. Conclusion. A detailed determination of the content of chlorophyll a, chlorophyll b, their sum and carotenoids in the presence of chlorophylls gives a detailed idea of the quantitative ratio of these types of pigments in the raw material and makes it possible to eliminate the overlap of absorption bands of carotenoids and chlorophylls. This approach made it possible to optimize the temperature conditions for obtaining the oil extract of nettle leaves. The applied analytical approach can be used to control the content of carotenoids and chlorophylls when present together to optimize the technological pa-rameters of oil extracts obtained from other types of medicinal plant raw materials.

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Биологические ресурсы Urtica dioica L.: направления исследований и перспективы использования

Cited by 3 publications

References 17 publications

Observations on the Productivity of Breeding Specimens of Urtica dioica L. from European Russian Ecotopes in Comparison with the Breeding Variety under Field Crop Conditions

Observations on the Productivity of Breeding Specimens of Urtica dioica L. from European Russian Ecotopes in Comparison with the Breeding Variety under Field Crop Conditions

Climate Warming and Changes in the Reproductive Capacity of Woody Plants

Carotenoids and Chlorophylls When Present Together: Analytical and Technological Features

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