Content of carbohydrates in tropical rainforest nectars of<i>Marantaceae</i>using high-performance thin-layer chromatography

Ruppel, Alexander; Morlock, Gertrud E.

doi:10.1556/jpc.28.2015.2.13

Cited by 10 publications

(7 citation statements)

References 10 publications

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“…The presence of sugars was assessed using aniline diphenylamine o ‐phosphoric acid as post‐chromatographic derivatisation reagent that enables both sensitive and selective identification of sugars thanks to its low detectability, and their colorimetric differentiation ( Figure 1 b ) [17,18] . Saccharose (dark blue band), fructose (brown band) and glucose (blue band) were therefore identified in this extract by comparison with the corresponding standards [19] …”

Section: Resultsmentioning

confidence: 99%

Anti‐Aging Potential of a Rosa centifolia Stem Extract with Focus on Phytochemical Composition by Bioguided Fractionation

Dubois

Plainfossé²,

Delcroix

et al. 2022

Chemistry & Biodiversity

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Agricultural practices generate huge amounts of by‐products, often simply discarded as waste that must be processed at some cost. The natural by‐products revalorisation as raw material to produce high‐added value ingredients for various industrial sectors may pave the way towards more sustainable industrial practices, via an optimised utilisation of natural resources. Integrating the circular economy precepts to production systems is considered to be a more and more promising management solution to significantly reduce the environmental impact of economic activities. This article discusses the valorisation of Rosa centifolia stem to produce a natural extract with cosmetic anti‐aging potential. To do so, the cosmetic potential of 30 extracts obtained by maceration of agricultural by‐products in a hydroalcoholic solvent was evaluated: their activities, as well as their inhibitory activities of specific enzymes were assessed in vitro to identify those that could be used effectively as anti‐ageing actives while meeting the consumer's expectations in terms of sustainability, naturality, transparency and traceability.[1] A hydroalcoholic extract of R. centifolia stem revealed itself particularly promising due to its valuable anti‐hyaluronidase and antioxidant activities, and its interesting anti‐elastase and anti‐inflammatory potential. The bio‐guided fractionation of this extract allows the characterisation of three major compounds, e. g., isoquercitrin, quercitrin and euscaphic acid, never identified in R. centifolia previously.

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Section: Resultsmentioning

confidence: 99%

Anti‐Aging Potential of a Rosa centifolia Stem Extract with Focus on Phytochemical Composition by Bioguided Fractionation

Dubois

Plainfossé²,

Delcroix

et al. 2022

Chemistry & Biodiversity

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“…Sucrose and melezitose aqueous solutions (each 50 weight/weight % solution) were used to assess the importance of nectar-feeding species and indirectly the importance of ant-plant protective mutualisms. Melezitose is a frequent sugar found in aphid, mealybug, lepidopteran, and membracid honeydews, and it does rarely occur in floral and extrafloral nectars (see Koptur 1994, Ruppel & Morlock 2015, while sucrose is one of the most frequent compounds in extrafloral nectars (Bl€ uthgen et al 2004). The predation process has been assessed using termites, one of the common prey items in ants' diet.…”

Section: Methodsmentioning

confidence: 99%

Resource use and food preferences in understory ant communities along a complete elevational gradient in Papua New Guinea

et al. 2018

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Elevational gradients provide an interesting opportunity for studying the effect of climatic drivers over short distances on the various facets of biodiversity. It is globally assumed that the decrease in species richness with increasing elevation follows mainly the decrease in ecosystem productivity, but studies on functional diversity still remain limited. Here, we investigated how resource use and food preferences by both individual ant species and communities foraging in the understory vary with elevation along a complete elevational gradient (200 to 3200 m asl). Five bait types reflecting some of the main ecosystem processes in which ants are involved were tested: mutualism (sucrose and melezitose), predation (live termites), and detritivory (crushed insects and chicken feces). The observed monotonic decrease in both species richness and occurrences with elevation increase was accompanied by changes in some of the tested ecosystem processes. Such variations can be explained by resource availability and/or resource limitation: Predation and bird feces removal decreased with increasing elevation possibly reflecting a decline in species able to use these resources, while insect detritivory and nectarivory were most probably driven by resource limitation (or absence of limitation), as their relative use did not change along the gradient. Consequently, resource attractiveness (i.e., food preferences at the species level) appears as an important factor in driving community structuring in ants together with the abiotic environmental conditions.

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“…Moreover, thin‐layer chromatography has been widely used as a simple and rapid method for determining d ‐mannose (Mohammad and others ; Pruden and others ; Ruppel and Morlock ).…”

Section: Determination Of D‐mannosementioning

confidence: 99%

d‐Mannose: Properties, Production, and Applications: An Overview

Shi

Zhang

et al. 2016

Comp Rev Food Sci Food Safe

150

115

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d-Mannose is a C-2 epimer of d-glucose, which is a natural monosaccharide. It can be obtained from both plants and microorganisms. Chemical synthesis and biotransformation of d-mannose from d-fructose or d-glucose by using d-mannose isomerases, d-lyxose isomerases, and cellobiose 2-epimerase were intensively studied. d-Mannose is an important component of polysaccharides and glycoproteins. It has been widely used in the food, pharmaceutical, and poultry industries, acting as the source of dietary supplements, starting material for the synthesis of drugs and blocking colonization in animal feeds. d-Mannose is a glyconutrient with high research value in basic science because of its structure and function. This article presents a review of current studies on sources, characteristics, production, and application of d-mannose.

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Content of carbohydrates in tropical rainforest nectars ofMarantaceaeusing high-performance thin-layer chromatography

Cited by 10 publications

References 10 publications

Anti‐Aging Potential of a Rosa centifolia Stem Extract with Focus on Phytochemical Composition by Bioguided Fractionation

Anti‐Aging Potential of a Rosa centifolia Stem Extract with Focus on Phytochemical Composition by Bioguided Fractionation

Resource use and food preferences in understory ant communities along a complete elevational gradient in Papua New Guinea

d‐Mannose: Properties, Production, and Applications: An Overview

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