Investigation of plants containing unusual ecdysteroids with ring in their side-chain

Ványolós, Attila

doi:10.14232/phd.1514

Cited by 3 publications

(4 citation statements)

References 94 publications

(46 reference statements)

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“…Cluj-Napoca has a unique, singular position in the regional context, being the largest city in Transylvania and the one that had undergone probably the most significant and visible landscape changes in the past two decades in Romania, given its special, distinct topography and thus its sprawling expansion on the neighboring hills and along the Someș river valley (Ványolós, 2021). The complex and very much limiting context of its current GUP (Fig.…”

Section: Case Study #2mentioning

confidence: 99%

The Ecological Perspective in Nowadays’ Urban Landscape Planning in Transylvania

Ványolós,

Henning,

Lihăt

et al. 2023

Acta Biologica Marisiensis

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Nowadays’ (Transylvanian) urban landscape as a complex, built and natural, social and economic environment is undergoing a sudden and accelarated transformation. Urbanization is a defining feature of current spatial/urban metamorphosis in Transylvania, too, yet the current model of urban development profoundly alters the natural environment, often reducing biodiversity and ultimately threatening human wellbeing. Present not only in academic theory, but in a broader sense in the daily public debate for the past decades, ecological perspective has become one of the leading design principles in nowadays’ professional practice and theory in urban and spatial planning, a compulsory attribute of the contemporary mindset and (urban) landscape. Proposed research on ecological perspective in current urban (landscape) planning in Transylvania, Romania is focusing specifically on the role ecological perspective can play in understanding, the applying the more general and complex phenomenon of sustainability in the planning and management of landscapes. The idea of sustainability, the ecoregional approach are not only traditional attributes of the historical landscape, but also generators in present day development of cities around Transylvania, Romania. The ecological approach can enhance finding solutions in urgent social and environmental challanges regarding efficient management of resources, sustainable urban and spatial planning.

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Section: Case Study #2mentioning

confidence: 99%

The Ecological Perspective in Nowadays’ Urban Landscape Planning in Transylvania

Ványolós,

Henning,

Lihăt

et al. 2023

Acta Biologica Marisiensis

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“…, and Ajuga sp . no dedicated TLC method for separation of phytoecdysteroids from Rhaponicum sp . exists.…”

Section: Tlc In Separation Of Ecdysteroidsmentioning

confidence: 99%

“…Although TLC is recently being used as an efficient technique for separation of ecdysteroids from various plant species, such as Silene sp., Serratula sp., and Ajuga sp. [36][37][38] no dedicated TLC method for separation of phytoecdysteroids from Rhaponicum sp. exists.…”

Section: Tlc In Separation Of Ecdysteroidsmentioning

confidence: 99%

“…This phenomenon is most probably a result of capillary condensation of water in the spaces of the smallest pores of column packing. According to the work by Lafont and colleagues the Zorbax‐Sil column is the most resistant towards prolonged use in the presence of changing concentrations of water in solvents or samples, thus provides the most stable separation conditions.…”

Section: Column Hilic and Np‐hplc Of Ecdysteroids And Their Derivativesmentioning

confidence: 99%

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Chromatographic separation, determination and identification of ecdysteroids: Focus on Maral root (Rhaponticum carthamoides, Leuzea carthamoides)

Głazowska

Kamiński

2018

J of Separation Science

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The review presents general principles for choosing optimal conditions for ecdysteroid separation, identification, and isolation using HPLC/TLC techniques in RP, NP‐HILIC or NP modes. Analytics of ecdyteroids pose a still insufficiently resolved problem. Plant‐derived ecdysteroids are a point of interest of pharmaceutical industry and sport medicine due to their postulated adaptogenic and anabolic properties. In insects, ecdysteroids regulate larval transformation. Maral root (Rhaponticum carthamoides, Leuzea carthamoides), traditional Siberian folk‐medicine plant used as stimulant to boost overall health and fitness, is a particularly rich source of a wide variety of phytoecdysteroids. The similarity of molecular structures of ecdysteroids present in its extracts together with high content of unrelated compounds of similar chromatographic characteristics makes optimization of separation, identification and isolation of ecdysteroids a difficult analytical task. In that respect, two‐dimensional separations, two‐dimensional separations, 2D HPLC or 2D TLC, could be of use. For identification, the hyphenated techniques are particularly important. Thus, comprehensive overview of MS spectral parameters of ecdysteroids is provided. Described principles could easily be applied for separation of ecdysteroids in extracts from other sources. They are also useful for development of separation procedures for isolation of ecysteroids in preparative‐scale applications.

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Phytoecdysteroids

et al. 2021

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Investigation of plants containing unusual ecdysteroids with ring in their side-chain

Cited by 3 publications

References 94 publications

The Ecological Perspective in Nowadays’ Urban Landscape Planning in Transylvania

The Ecological Perspective in Nowadays’ Urban Landscape Planning in Transylvania

Chromatographic separation, determination and identification of ecdysteroids: Focus on Maral root (Rhaponticum carthamoides, Leuzea carthamoides)

Phytoecdysteroids

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