Honeybush herbal teas (Cyclopia spp.) contribute to high levels of dietary exposure to xanthones, benzophenones, dihydrochalcones and other bioactive phenolics

Schulze, Alexandra E.; Beelders, Theresa; Koch, Ilona; Erasmus, L.M.; Beer, Dalene de

doi:10.1016/j.jfca.2015.08.002

Cited by 43 publications

(18 citation statements)

References 33 publications

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“…; Scoly , Phlor‐di‐glc and Iri‐di‐glc were not detected in the C. maculata samples. Furthermore, a clear decrease in the levels of especially Mang , Isomang and Hd was observed following fermentation , while Iri‐glc was not detected in any of the fermented samples. Also for honeybush samples, a “hump” likely associated with polymeric phenolic material is observed.…”

Section: Resultsmentioning

confidence: 89%

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Evaluation of capillary electrophoresis for the analysis of rooibos and honeybush tea phenolics

et al. 2016

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Rooibos and honeybush are popular herbal teas produced from the shrubs of Aspalathus linearis and Cyclopia spp., respectively, which are indigenous to South Africa. Both herbal teas are rich in polyphenols and their consumption is associated with several health benefits, partly ascribed to their phenolic constituents. Quantification of phenolics in extracts and teas for quality control and research purposes is generally performed using HPLC, although dedicated and often species-specific methods are required. CE offers an attractive alternative to HPLC for the analysis of phenolics, with potential benefits in terms of efficiency, speed and operating costs. In this contribution, we report quantitative CZE methods for the analysis of the principal honeybush and rooibos phenolics. Optimal separation for honeybush and rooibos phenolics was achieved in 21 and 32 min, respectively, with good linearity and repeatability. Quantitative data for extracts of "unfermented" and "fermented" rooibos and two honeybush species were statistically comparable with those obtained by HPLC for the majority of compounds. The developed methods demonstrated their utility for the comparison of phenolic contents between different species and as a function of manufacturing processes, thus offering cost effective, although less sensitive and robust, alternatives to HPLC analysis.

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Section: Resultsmentioning

confidence: 89%

“…A). The method also proved suitable for the separation of major phenolics in both C. maculata and C. subternata , indicating the potential of developing a “generic” CE method for different honeybush species, something which is challenging by HPLC . The differences in phenolic composition between the two honeybush species are clear from Fig.…”

Section: Resultsmentioning

confidence: 90%

Evaluation of capillary electrophoresis for the analysis of rooibos and honeybush tea phenolics

et al. 2016

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“…Furthermore, recently, dihydrochalcones were found also in cranberries [33], honeybush herbal tea (Cyclopia ssp.) [34], sofrito, and tomatoes [35]. They were also identified in such plants as Esenbeckia grandiflora subsp.…”

Section: Dihydrochalcones From Natural Sourcesmentioning

confidence: 97%

Dihydrochalcones: Methods of Acquisition and Pharmacological Properties—A First Systematic Review

2019

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Dihydrochalcones are a class of secondary metabolites, for which demand in biological and pharmacological applications is still growing. They posses several health-endorsing properties and, therefore, are promising candidates for further research and development. However, low content of dihydrochalcones in plants along with their low solubility and bioavailability restrict the development of these compounds as clinical therapeutics. Therefore, chemomicrobial and enzymatic modifications are required to expand their application. This review aims at analyzing and summarizing the methods of obtaining dihydrochalcones and of presenting their pharmacological actions that have been described in the literature to support potential future development of this group of compounds as novel therapeutic drugs. We have also performed an evaluation of the available literature on beneficial effects of dihydrochalcones with potent antioxidant activity and multifactorial pharmacological effects, including antidiabetic, antitumor, lipometabolism regulating, antioxidant, anti-inflammatory, antibacterial, antiviral, and immunomodulatory ones. In addition, we provide useful information on their properties, sources, and usefulness in medicinal chemistry.

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“…The sweet‐associated and fruity aroma notes should be retained during storage to justify this additional processing step during the production of green honeybush tea. Furthermore, storage conditions should have little negative impact on its green leaf color, as well as phenolic content, given that Cyclopia herbal teas are good sources of xanthones and benzophenones …”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, storage conditions should have little negative impact on its green leaf color, as well as phenolic content, given that Cyclopia herbal teas are good sources of xanthones and benzophenones. 6 Honeybush herbal tea is usually bulk packaged and remains on the factory site for several weeks before retail packaging or transportation to packaging facilities or depots from where the bulk product is shipped for export. Stored under suboptimal conditions, the product may experience accelerated degradation of quality, however, knowledge of the effect of storage conditions on the quality of green honeybush is lacking.…”

Section: Introductionmentioning

confidence: 99%

Impact of steam treatment on shelf‐life stability of a xanthone‐rich green herbal tea (Cyclopia maculata Andrews Kies) – identifying quality changes during storage

et al. 2018

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Honeybush herbal teas (Cyclopia spp.) contribute to high levels of dietary exposure to xanthones, benzophenones, dihydrochalcones and other bioactive phenolics

Cited by 43 publications

References 33 publications

Evaluation of capillary electrophoresis for the analysis of rooibos and honeybush tea phenolics

Evaluation of capillary electrophoresis for the analysis of rooibos and honeybush tea phenolics

Dihydrochalcones: Methods of Acquisition and Pharmacological Properties—A First Systematic Review

Impact of steam treatment on shelf‐life stability of a xanthone‐rich green herbal tea (Cyclopia maculata Andrews Kies) – identifying quality changes during storage

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