Herbal teas

Sarwar, Sarah; Lockwood, Brian

doi:10.1007/bf03223331

Cited by 6 publications

(3 citation statements)

References 25 publications

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“…Leaves can be harvested and dried producing green or unfermented rooibos. 11 To manufacture the more traditional red brown coloured rooibos tea, the leaves undergoes a fermentation process during which the polyphenols in rooibos, become oxidized. 11 Rooibos tea is rich in flavonoids which are known to possess various beneficial characteristics including antioxidant, antitumor, antiatherosclerotic, anti-inflammatory, antiviral and estrogenic activities.…”

Section: M-csf Binds To C-fms Receptor On Osteoclast Precursors and Smentioning

confidence: 99%

“…11 To manufacture the more traditional red brown coloured rooibos tea, the leaves undergoes a fermentation process during which the polyphenols in rooibos, become oxidized. 11 Rooibos tea is rich in flavonoids which are known to possess various beneficial characteristics including antioxidant, antitumor, antiatherosclerotic, anti-inflammatory, antiviral and estrogenic activities. [12][13][14] The flavonoids in rooibos are aspalathin, nothofagin, quercitin, luteolin, orientin, iso-orientin and chrysoeriol.…”

Section: M-csf Binds To C-fms Receptor On Osteoclast Precursors and Smentioning

confidence: 99%

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Rooibos tea extracts inhibit osteoclast formation and activity through the attenuation of NF-κB activity in RAW264.7 murine macrophages

et al. 2018

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Rooibos tea is a naturally sweet and aromatic tea that is native to the Western Cape province of South Africa. Rooibos is usually fermented to produce the traditional reddish brown colour and has been found to have numerous health benefits. These include beneficial effects on osteoblasts; however, its effects on osteoclast formation and activity are unknown. Osteoclasts are large, multinucleated cells responsible for bone resorption. Binding of RANKL to its receptor on osteoclast precursors triggers the NF-κB signalling pathway leading to the formation of osteoclasts. Certain bone destructive diseases, such as osteoporosis, are characterised by overactive osteoclasts. The inhibition of osteoclasts may offer a potential mode to prevent these diseases. The polyphenol contents of both fermented and unfermented tea extracts were similar although the radical scavenging activity of fermented rooibos tea was lower. Both tea extracts were not cytotoxic and inhibited osteoclast formation. Fermented rooibos tea extract caused a greater reduction in osteoclast resorption and the associated gene expression when compared with unfermented rooibos tea. Both tea extracts were shown to attenuate NF-κB activity. Fermented rooibos was found to have a more potent inhibitory effect on osteoclasts than unfermented rooibos extract and therefore may have a beneficial effect on bone health.

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Section: M-csf Binds To C-fms Receptor On Osteoclast Precursors and Smentioning

confidence: 99%

Section: M-csf Binds To C-fms Receptor On Osteoclast Precursors and Smentioning

confidence: 99%

Rooibos tea extracts inhibit osteoclast formation and activity through the attenuation of NF-κB activity in RAW264.7 murine macrophages

et al. 2018

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“…These bioactive compounds include antioxidants and other therapeutic properties, while tea contains rather high amounts of caffeine [1,4,10]. Some of the most popular herbal teas include bael fruit, chamomile, chrysanthemum, jasmine, lavender, marigold, pomegranate, safflower, and rose [11][12][13]. In Thailand, there are several popular flower teas, such as butterfly-pea, chrysanthemum, jasmine flower, rose, roselle, or safflower.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Aspergillus chevalieri and A. niger on Herbal Tea and Their Potential to Produce Ochratoxin A (OTA)

Noorabadi,

Gomes de Farias,

Mapook

et al. 2023

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Herbal teas, including Camellia sinensis (black and green teas), are popular beverages with health benefits for consumers worldwide. These products are prepared from natural materials of different plant parts containing antioxidant properties and vitamins. The aim of this study was to investigate fungal contaminants and their ability to produce ochratoxin A (OTA) in herbal tea samples. Seven herbal teas were obtained from local markets in Chiang Rai, northern Thailand. Samples were incubated on potato dextrose agar (PDA), and the growing mycelia were isolated into a pure culture. The cultures were identified via both morphology and molecular analysis to confirm species identification. The identified species were subjected to OTA analysis using high-performance liquid chromatography (HPLC) with a fluorescence detector. Ochratoxin A was produced by Aspergillus chevalieri and A. niger, isolated from seven herbal tea samples (black tea, green tea, bael fruit, goji berry, jasmine, lavender, and rose). This finding raises concerns about the safety of herbal tea and should be investigated further for potential health implications.

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Phenolic profile and biological activities of decoctions from Santolina impressa, a Portuguese endemic species

Rodrigues

Falé

Madeira

et al. 2020

Journal of Herbal Medicine

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Herbal teas

Cited by 6 publications

References 25 publications

Rooibos tea extracts inhibit osteoclast formation and activity through the attenuation of NF-κB activity in RAW264.7 murine macrophages

Rooibos tea extracts inhibit osteoclast formation and activity through the attenuation of NF-κB activity in RAW264.7 murine macrophages

Occurrence of Aspergillus chevalieri and A. niger on Herbal Tea and Their Potential to Produce Ochratoxin A (OTA)

Phenolic profile and biological activities of decoctions from Santolina impressa, a Portuguese endemic species

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