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Showing 1 to 20 of 27 for “"Rooibos"”.
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Ecosystem functioning, ecosystem services and rooibos production as affected by connectivity to natural vegetation and agrochemical use in rooibos tea (Aspalathus linearis) farming
… for the indigenous crop Aspalathus linearis (rooibos). The study was performed on 13 sites in Nieuwoudtville and Clanwilliam. I found evidence that rooibos pollination is dependent on flying pollinators and that the natural environment is an important provider of ecosystem services to rooibos …
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Rooibos tea flavonoids increase mineral content in human osteoblast-like cells
… bone mineral density in post-menopausal women. Rooibos tea contains no caffeine and is a rich source of flavonoids such as rutin, orientin, hyperoside and luteolin. These flavonoids have similar structures to estradiol, and therefore may act as estrogen mimics to promote favourable outcomes in …
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Morphological and molecular analyses for the characterization of Aspalanthus linearis (Fabaceae: rooibos)
I investigated the infraspecific diversity among individuals of Aspalathus linearis from five localities in the Cederberg Fynbos region using morphological traits and two DNA- based methods: inter-simple sequence repeats (ISSR) and a plastid marker. A principle component analysis (PCA) based on …
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N2 fixation and rhizosphere ecology of aspalathus linearis subsp. linearis(rooibos tea)
Aspalathus linearis subsp. linearis grows in acid sands of the Cedarberg with pH ranging from 3.8-5.5. Under these conditions:, some essential nutrients are likely to be limiting. In this study, the response of Aspalathus linearis subsp. linearis to N, P, Ca and B was investigated I under field and …
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Assessment of chemical markers as surrogates for efficacy and safety of Rooibos extracts
Research interest in the bioactive polyphenols of rooibos. to which its health-promoting properties are attributed, has escalated. Defining the quality attributes for assessing the efficacy of rooibos health products forms part of a quality control system. The aim of this study was to identify …
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Relationship between Aspalathus linearis (Burm. F.) R. Dahlgren (rooibos) growth and soil moisture in a glasshouse and in the DSSAT-CSM crop model
… agriculture and water resources globally and for rooibos (Aspalathus linearis (Burm. F.) R. Dahlgren) production in the Western Cape province of South Africa. Rooibos is adapted to the coarse, nutrient poor, acidic, well-drained, deep sandy soil of the Fynbos biome. The region has a Mediterranean …
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An in vitro and in vivo hepatotoxicity study of an aspalathin- rich green rooibos extract
… Flavonoids of aspalathin-rich green Rooibos extract (GRT) present many therapeutic properties that reduce the risk of developing cardiovascular diseases. However, there is a gap in literature regarding the efficacy or safety of this particular extract on the liver. Furthermore, …
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Sustainable harvesting of wild rooibos (Aspalathus linearis) in the Suid Bokkeveld, Northen [i.e. Northern] Cape
A study was conducted on the effect of harvest seasonality and harvest timing on post-harvest regrowth for wild A. linearis plants. Field data support the conventional practice of summer harvests that depend on a host of ecological and social factors. A January harvest (Summer) resulted in the …
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South African Rooibos industry : opportunities and constraints with special reference to the German consumer market
… the last decade a South African product, namely Rooibos, has conquered the German consumer market. It initially started as a small trend amongst health conscious people, developing into a staple product, to being difficult nowadays to imaging Rooibos not being available for sale. As Rooibos …
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Potential implications of climate change for Rooibos (A. linearis) production and distribution in the greater Cederberg region, South Africa
… Africa is the leguminous shrub, A. linearis (rooibos), which is extensively used as ethnomedicine by local communities, while also commercially grown and exported for the herbal tea market. Being a range-restricted species, climate change poses a threat to wild plants and their dependent …
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A study of the protective effects of an aspalathin enriched green rooibos extract on experimentally induced hepatic steatosis
… regime to cure NAFLD has not been established. Rooibos is gaining increasing recognition for its ability to improve health and has demonstrated hepatoprotective effects against carbon tetrachloride (CCl4) and tert-butyl hydroperoxide induced hepatotoxicity in rodents. This study will establish …
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Tea types and their effects on in vitro mineralization and in vivo bone structure and density
… a dietary concentration of polyphenols, but red rooibos tea appeared to produce the greatest effects. The next important aspect which needed to be clarified was if there was an optimal concentration of red rooibos tea that elicited maximal results (Study 3). To determine this, a dose response …
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The effects of green tea, green rooibos and their major flavonoids (EGCG and aspalathin) on testicular cell health in vitro
… treatment, including herbal medicines. Tea and rooibos are popular health drinks with global reach. Both have a green/unfermented form, which are said to possess potent health-beneficial properties. Polyphenols, and especially the flavonoids: epigallocatechin gallate (EGCG, from green tea) and …
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Safety Assessment and Chemical Fingerprint Analysis of Medicinal Plants Commonly Consumed As Herbal Teas; Rooibos (<em>Aspalathus Linearis</em>) and Moringa (<em>Moringa Oleifera</em>)
… fingerprinting development are provided. Rooibos tea (<em>Aspalathus linearis</em>) is a popular South African herbal tea enjoyed worldwide. Limited reports indicate the potential of rooibos tea to alter the activity of CYP450 isozymes. In chapter two, the phytochemical investigation of …
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Investigating the relationship between land use and soil moisture variation in Suid Bokkeveld, South Africa
… five types of land uses that were investigated, rooibos cultivated farms had the highest soil moisture variability. The second highest variability was found in grazing cultivated farms and the lowest in natural and grazing never cultivated land, respectively. The results confirm that the shift …
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The effects of ethanol and aspalathus linearis on immortalized mouse brain endothelial cells (bEnd5)
… in vitro effects of ethanol (EtOH) and fermented rooibos (Rf) on a monolayer of bEnd5 mouse brain ECs, by determining the effects of EtOH and Rf on bEnd5 (i) cell viability (ii) cell proliferation (iii) rate of cell division (iv) cell toxicity (v) claudin-5 transcription (vi) permeability across a …
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A comparative study on the effectiveness of application techniques of tissue oil enriched with Rooibos (Aspalathus Linearis) extract on dehydrated skin of women aged between 18 and 45 years
Submitted in fulfilment of the requirements of the Degree of Master of Technology: Somatology, Durban University of Technology, Durban, South Africa, 2019.
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The Effects of Red Rooibos Intervention in Combination with Two Different Levels of Dietary Calcium and Vitamin D on Mandible and Maxilla Bone Mineral Density in Ovariectomized Sprague-Dawley Rats
… that are naturally found in tea, such as red rooibos (RR) tea, may support bone health. The objective of this study was to determine if RR tea consumption can stimulate an increase in BMD in the whole mandible and the maxilla post-OVX. In addition to OVX, bone health can be further challenged …
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