Revisiting the caffeine-free status of rooibos and honeybush herbal teas using specific MRM and high resolution LC-MS methods

@article{Stander2019RevisitingTC,
  title={Revisiting the caffeine-free status of rooibos and honeybush herbal teas using specific MRM and high resolution LC-MS methods},
  author={Maria A. Stander and Elizabeth Joubert and Dalene de Beer},
  journal={Journal of Food Composition and Analysis},
  year={2019}
}
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13 Citations
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13 Citations

Risk assessment of heavy metals in rooibos (Aspalathus linearis) tea consumed in South Africa
TLDR
Both the target risk quotient (THQ) and the hazard index (HI) levels in all analyzed tea were well below 1, implying that intake of rooibos tea with analyzed heavy metals should not cause a threat to human health.
Heat treatment improves the sensory properties of the ultrafiltration by-product of honeybush (Cyclopia genistoides) extract.
TLDR
After heat treatment, the phenolic content of C. genistoides retentate, reconstituted to beverage strength, still fell within the range of a typical fermented honeybush leaf tea infusion, and the change in phenolic composition will not diminish the benefit of an improved sensory profile for the retentates by-product through heating.
Advancement of analytical techniques in some South African commercialized medicinal plants: Current and future perspectives
Rooibos (Aspalathus linearis) and Honeybush (Cyclopia spp.): From Bush Teas to Potential Therapy for Cardiovascular Disease
TLDR
Rooibos and honeybush : from bush teas to potential therapy for cardiovascular disease and beyond, past, present and future.
Adipose tissue as a possible therapeutic target for polyphenols: A case for Cyclopia extracts as anti-obesity nutraceuticals.
Hibiscus, Rooibos, and Yerba Mate for Healthy Aging: A Review on the Attenuation of In Vitro and In Vivo Markers Related to Oxidative Stress, Glycoxidation, and Neurodegeneration
TLDR
The literature on hibiscus, rooibos, and yerba mate teas is reviewed in the context of nutritional strategies for the attenuation of oxidative stress-related glycoxidation and neurodegeneration, and Alzheimer’s Disease is approached as an example.
Accelerated chromate reduction by tea waste: Comparison of chromate reduction properties between water and ice systems.
Formal honeybush tea industry reaches 20-year milestone – progress of product research targeting phenolic composition, quality and bioactivity
Resprouters Versus Reseeders: Are Wild Rooibos Ecotypes Genetically Distinct?
TLDR
The hypothesis that wild rooibos ecotypes are distinct in genetic variability and that the ecotypes found in the Northern Cape are differentiated from those in the Cederberg that may be linked to a fire-survival strategy as well as distinct morphological and phytochemical differences is tested.
Application of direct injection-ion mobility spectrometry-mass spectrometry (DI-IMS-MS) for the analysis of phenolics in honeybush and rooibos tea samples
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References

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Rooibos (Aspalathus linearis) beyond the farm gate: From herbal tea to potential phytopharmaceutical
Analysis of Phenolic Compounds in Rooibos Tea (Aspalathus linearis) with a Comparison of Flavonoid-Based Compounds in Natural Populations of Plants from Different Regions.
TLDR
The collisional cross-section data obtained from ion mobility-mass spectrometry is reported for the flavonoids in rooibos for the first time, facilitating the identification of several new compounds as well as grouping of the wild tea ecotypes according to their chemical composition.
Metabolic profiling of four South African herbal teas using high resolution liquid chromatography-mass spectrometry and nuclear magnetic resonance.
The history and ethnobotany of Cape herbal teas
Optimising high-temperature oxidation of Cyclopia species for maximum development of characteristic aroma notes of honeybush herbal tea infusions
Determination of tea components with antioxidant activity.
TLDR
The results indicated that green tea has a higher content of catechins than both oolong and fermented teas (red and black teas); the fermentation process during tea manufacturing reduces the levels ofcatechins significantly.
Recent advances on HPLC/MS in medicinal plant analysis—An update covering 2011–2016
Honeybush (Cyclopia spp.): From local cottage industry to global markets — The catalytic and supporting role of research
Potential of rooibos, its major C-glucosyl flavonoids, and Z-2-(β-D-glucopyranosyloxy)-3-phenylpropenoic acid in prevention of metabolic syndrome
TLDR
The potential of rooibos extract and its major C-glucosyl flavonoids, in particular aspalathin, a C- glucoside dihydrochalcone, as well as the phenolic precursor, Z-2-(β-D-Glucopyranosyloxy)-3-phenylpropenoic acid, to prevent the metabolic syndrome, will be highlighted.
Alkaloids of the genera Aspalathus, Rafnia and Wiborgia (Fabaceae – Crotalarieae)
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