Academic literature on the topic 'Rooibos tea industry – South Africa'
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Journal articles on the topic "Rooibos tea industry – South Africa"
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Keahey, Jennifer, and Douglas L. Murray. "The Promise and Perils of Market-based Sustainability." Sociology of Development 3, no. 2 (2017): 143–62. http://dx.doi.org/10.1525/sod.2017.3.2.143.
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Sustainability standards and certifications increasingly represent multi-billion-dollar brands that partner with corporate firms. We employ the case of South Africa's Rooibos tea industry to analyze the impacts of this shift. Examining five sustainability initiatives, our research focuses on small-scale farmers and the power dynamics shaping their involvement. The Rooibos initiatives engaged multiple approaches, but none realized sustainable outcomes. Third-party and corporate efforts exposed producers to risk and reified dependency, industry actions did not achieve intended goals, and a shared leadership project failed to address material barriers to participation. Yet examples of good practice offer insight into the types of policies needed to improve outcomes. These include shifting from a hierarchical to a relational orientation by reducing certification costs, extending support services, and ensuring inclusivity in planning and governance. We conclude by arguing that markets are a perilous tool for development. Sustainable trade systems nevertheless illustrate the promise of market-based sustainability, as these are providing marginal groups with a platform to demand more equitable arrangements.
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Gustafson, Bret, Francesco Carpanini, Martin Kalb, James Giblin, Sarah Besky, Patrick Gallagher, Andrew Curley, Jen Gobby, and Ryan Anderson. "Book Reviews." Environment and Society 9, no. 1 (September 1, 2018): 164–81. http://dx.doi.org/10.3167/ares.2018.090111.
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Cepek, Michael. 2018. Life in Oil: Cofán Survival in the Petroleum Fields of Amazonia. Austin: University of Texas Press. 302 pp. ISBN 978-1477315088.Choné, Aurélie, Isabelle Hajek, and Philippe Hamman, eds. 2017. Rethinking Nature: Challenging Disciplinary Boundaries. Abingdon; New York: Routledge. xiv + 268 pp. (Paperback) ISBN 978-1-138-21493-4.Davis, Diana K. 2016. The Arid Lands: History, Power, Knowledge. Cambridge, MA: MIT Press. 271 pp. ISBN 978-0262034524.Gissibl, Berhard. 2016. The Nature of German Imperialism: Conservation and the Politics of Wildlife in Colonial East Africa. New York: Berghahn Books, 2016. 374 pp. ISBN 978-1-78533-175-6.Ives, Sarah. 2017. Steeped in Heritage: The Racial Politics of South African Rooibos Tea. NC: Duke University Press. 272 pp. ISBN 978-0-8223-6986-8.Martínez-Reyes, José. Moral Ecology of a Forest: The Nature Industry and Maya Post-Conservation. Tucson: University of Arizona Press. 216 pp. ISBN 978-0816531370.Powell, Dana E. 2017. Landscapes of Power: Politics of Energy in the Navajo Nation. Durham, NC: Duke University Press. 336 pp. ISBN 978-0822369943.Raygorodetsky, Gleb. 2017. The Archipelago of Hope: Wisdom and Resilience from the Edge of Climate Change. New York: Pegasus Books. 336 pp. ISBN: 978-1681775326.Wright, Christopher, and Daniel Nyberg. 2015. Climate Change, Capitalism, and Corporations: Processes of Creative Self-Destruction. Cambridge: Cambridge University Press. 254 pp. ISBN 978-1107435131.
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Smith, Jacobus F. N., Alfred Botha, and Ailsa G. Hardie. "Role of soil quality in declining rooibos (Aspalathus linearis) tea yields in the Clanwilliam area, South Africa." Soil Research 56, no. 3 (2018): 252. http://dx.doi.org/10.1071/sr17029.
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Global demand for rooibos tea is increasing whereas yields are decreasing in the primary production area of Clanwilliam, South Africa. Commercial rooibos producers report that tea yields decline over time following the initial clearing of the natural fynbos veld. Therefore, the aim of this study was to investigate soil and plant quality in cultivated rooibos plantations of various ages (1–60 years) and adjacent, wild rooibos stands in pristine fynbos in the Clanwilliam area. Soil chemical and physical properties, plant total biomass, tea yields, foliar elemental contents, extent of root nitrogen (N) nodulation and mycorrhizal colonisation were assessed. The most prominent soil quality changes at the oldest cultivated sites compared with pristine fynbos soils were an increase in soil phosphorus (P) from 1.3–1.7 mg kg–1 to 4.0–17.0 mg kg–1, a general decline in total carbon from 0.14–0.29% to 0.09–0.10% and decline in total exchangeable basic cations from 0.64–0.78 cmolc kg–1 to 0.34–0.51 cmolc kg–1, and a concomitant increase in exchangeable aluminium (Al) from 0.10–0.30 cmolc kg–1 to 1.03–1.83 cmolc kg–1. Foliar N : P ratios notably declined at the cultivated sites (12 : 0 – 20 : 1) compared with pristine fynbos sites (27 : 1 – 33 : 1), indicating foliar P accumulation and lack of N. Soil P was strongly negatively correlated with rooibos root mycorrhizal colonisation. The decline in soil organic matter and basic cations, especially potassium (K), was most strongly correlated with the decline in rooibos shoot biomass yields at cultivated sites. These findings highlight the significant role of soil quality in declining yields of rooibos tea in the Clanwilliam area. Management practices should be implemented that increase soil organic matter and essential basic cations such as K, and soil P and exchangeable Al levels should be monitored.
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Malongane, Florence, Lyndy Joy McGaw, Legesse Kassa Debusho, and Fhatuwani Nixwell Mudau. "Sensory Characteristics and Volatile Compounds of Herbal Teas and Mixtures of Bush Tea with Other Selected Herbal Teas of South Africa." Foods 9, no. 4 (April 14, 2020): 496. http://dx.doi.org/10.3390/foods9040496.
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South Africa has a traditional heritage of using indigenous herbal teas, and the demand for herbal teas motivated by the functional health benefits has far exceeded global supply. This has led to worldwide interest in the sensory characteristics and volatile compound characterisation of herbal drink formulations. The objective of this study was to investigate the descriptive sensory analysis and volatile compounds of bush, special, honeybush and rooibos tea and the blend of bush tea with special, honeybush and rooibos, respectively. The trained sensory panel scored each tea sample for aroma, taste, aftertaste and mouthfeel attributes using sensory evaluation practices. Compound identification was performed by gas chromatography connected to a mass spectrometer (GC-MS). The results of the study demonstrated that rooibos and honeybush tea had an overall sweet-caramel, honey-sweet, perfume floral and woody aroma while bush tea and special tea depicted green-cut grass, dry green herbal and astringent/dry mouth feel. The GC-MS analyses depicted the following compounds 2-furanmethanol, 2-methoxy-4-vinylphenol, D-limonene, dihydroactinidolide, linalool, (E,E)-2,4-heptadienal, and phytol. The blending of bush tea with rooibos and honeybush tea toned down its astringent mouth feel. Compounds identified in this study may be useful markers for potential herbal tea sensory characteristics.
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Stander, Emily Amor, Wesley Williams, Yamkela Mgwatyu, Peter van Heusden, Fanie Rautenbach, Jeanine Marnewick, Marilize Le Roes-Hill, and Uljana Hesse. "Transcriptomics of the Rooibos (Aspalathus linearis) Species Complex." BioTech 9, no. 4 (September 23, 2020): 19. http://dx.doi.org/10.3390/biotech9040019.
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Rooibos (Aspalathus linearis), widely known as a herbal tea, is endemic to the Cape Floristic Region of South Africa (SA). It produces a wide range of phenolic compounds that have been associated with diverse health promoting properties of the plant. The species comprises several growth forms that differ in their morphology and biochemical composition, only one of which is cultivated and used commercially. Here, we established methodologies for non-invasive transcriptome research of wild-growing South African plant species, including (1) harvesting and transport of plant material suitable for RNA sequencing; (2) inexpensive, high-throughput biochemical sample screening; (3) extraction of high-quality RNA from recalcitrant, polysaccharide- and polyphenol rich plant material; and (4) biocomputational analysis of Illumina sequencing data, together with the evaluation of programs for transcriptome assembly (Trinity, IDBA-Trans, SOAPdenovo-Trans, CLC), protein prediction, as well as functional and taxonomic transcript annotation. In the process, we established a biochemically characterized sample pool from 44 distinct rooibos ecotypes (1–5 harvests) and generated four in-depth annotated transcriptomes (each comprising on average ≈86,000 transcripts) from rooibos plants that represent distinct growth forms and differ in their biochemical profiles. These resources will serve future rooibos research and plant breeding endeavours.
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Daramola, Fisayo Y., Francis B. Lewu, and Antoinette P. Malan. "Distribution and characterization of Pratylenchus bolivianus (Nematoda, Pratylenchidae) on rooibos (Aspalathus linearis) tea from South Africa." Journal of Plant Diseases and Protection 128, no. 5 (May 14, 2021): 1291–301. http://dx.doi.org/10.1007/s41348-021-00471-w.
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Keahey, Jennifer, Laura T. Raynolds, Sandra Kruger, and Andries du Toit. "Participatory commodity networking: An integrated framework for Fairtrade research and support." Action Research 16, no. 1 (August 9, 2016): 25–42. http://dx.doi.org/10.1177/1476750316661396.
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This article discusses the potential for humanizing production and trade relations by extending action research to multilateral commodity networks. Participatory action research and Fairtrade certification both promote social justice, but the first faces difficulties in terms of scalability, while the second experiences challenges in terms of producer support. As conventional research has failed to deliver methods for improving services, we worked with small-scale farmers in South Africa’s rooibos tea industry to meet this gap. Responding to producer concerns regarding market and certification access, we conducted a participatory research, training, and networking program to establish a farmer leadership network within the rooibos industry. Despite the challenges involved in advancing participation in an arena marked by complex power relations, our work helped stakeholders establish trust, improve knowledge, and begin addressing issues. By incorporating commodity network analysis into action research methodology, our model facilitates both community and organizational development, offering a multilateral framework for collaborative inquiry.
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STILLER, MICHAEL. "A new leafhopper genus Geelus and 12 new species (Hemiptera, Cicadellidae, Deltocephalinae) from Southern Africa ." Zootaxa 4786, no. 3 (June 3, 2020): 301–44. http://dx.doi.org/10.11646/zootaxa.4786.3.1.
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Twelve new species in a new genus, Geelus gen.n. are described, 10 species from a confined area in the north- and south-western parts of South Africa and two from Namibia. The genus has been recorded from 35 plant species in 18 families, with one species Geelus dundraad collected on Rooibos Tea, Aspalathus linearis (Fabaceae), which is indigenous to South Africa and cultivated commercially. The 12 new species are Geelus driehoekdraad sp.n., G. drietanddraad sp.n., G. dundraad sp.n., G. haakdraad sp.n., G. kinkeldraad sp.n., G. lemdraad sp.n., G. nektanddraad sp.n., G. platdraad sp.n., G. slangdraad sp.n., G. stompdraad sp.n., G. viertanddraad and G. vurkdraad sp.n. This new genus is allied to the Bonaspeiini, in the Deltocephalinae based on the broad lorum, apically expanded clypellus, dorsal side of the pygofer deeply and broadly incised, large sclerotized segment X, smooth merging of face and crown and Y-shaped connective with short stem. A MaxEnt distribution model based on 19 bioclimatic variables confirmed that the South African species occur within a confined region in the south-western parts of southern Africa.
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Chimphango, Samson BM, Dawood Hattas, and Noel Oettlé. "Effect of organic cultivation of rooibos tea plants (Aspalathus linearis) on soil nutrient status in Nieuwoudtville, South Africa." South African Journal of Plant and Soil 33, no. 1 (September 7, 2015): 13–21. http://dx.doi.org/10.1080/02571862.2015.1056850.
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SCHROEDER, DORIS, ROGER CHENNELLS, COLLIN LOUW, LEANA SNYDERS, and TIMOTHY HODGES. "The Rooibos Benefit Sharing Agreement–Breaking New Ground with Respect, Honesty, Fairness, and Care." Cambridge Quarterly of Healthcare Ethics 29, no. 2 (November 5, 2019): 285–301. http://dx.doi.org/10.1017/s0963180119001075.
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AbstractThe 1992 Convention on Biological Diversity (CBD) and its 2010 Nagoya Protocol brought about a breakthrough in global policy making. They combined a concern for the environment with a commitment to resolving longstanding human injustices regarding access to, and use of biological resources. In particular, the traditional knowledge of indigenous communities was no longer going to be exploited without fair benefit sharing. Yet, for 25 years after the adoption of the CBD, there were no major benefit sharing agreements that led to significant funding streams for indigenous communities. This changed with the signing of the Rooibos Benefit Sharing Agreement in South Africa, described in this paper. As the authors report, the Rooibos Agreement is a superlative in two respects. It is the biggest benefit sharing agreement between industry and indigenous peoples to date. It is also the first industry-wide agreement to be formed in accordance with biodiversity legislation. This article is a co-production between traditional knowledge holders, the lawyer who represented their interests, the Co-Chair of the Nagoya Protocol negotiations, and an ethicist who analyzed the major challenges of this historic agreement. With no precedent in the benefit sharing world, the agreement stands as a concrete example of the ‘art of the possible.’ Although the rooibos case is unique in a number of aspects, the experience offers many transferable insights, including: patience; incrementalism; honesty; trust; genuine dialogue; strong legal support; a shared recognition that a fair, win-win deal is possible; government leadership; and unity amongst indigenous peoples. Such ingredients of success can apply well beyond southern Africa.
Dissertations / Theses on the topic "Rooibos tea industry – South Africa"
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Hayes, Paul Bertus. "Enhancing the competitiveness of the Rooibos Industry." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51741.
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Assignment (MPhil)--Stellenbosch University, 2000.ENGLISH ABSTRACT: From 1954 to 1993 the Rooibos Control Board, a statutory one-channel marketing system, regulated the rooibos industry. In 1993 the industry was deregulated and competition between different role players in the industry emerged. In this study competitiveness is analysed from both a historical as well as a modem -day perspective. Modem economic theory defines that competition is good for all industry and that it leads to economic development. In the case of the rooibos industry, one could be inclined to think that the unique character of the product and the fact that the Control Board had established a marketing mechanism would limit competition and rivalry in the post -Control Board era. Inthis study it was determined that deregulation in this industry coincided with very intense price-driven rivalry in the export market whilst very little rivalry occurred in the domestic market. The information for this thesis was obtained from published Annual Reports of the Rooibos Control Board and from personal interviews with the main role players in the industry. Two strategies that could enhance the competitiveness of this industry are recommended: 1. Repositioning rooibos as a gourmet health tea. 2. Improving supply chain coordination within the industry.
AFRIKAANSE OPSOMMING: Verbetering van die Mededingendheid van die Rooibos Industrie Vanaf 1954 tot 1993 het die Rooibos Beheerraad, 'n statutêre enkelkanaal bemarkingsorganisasie, die rooibosindustrie gereguleer. In 1993 is die bedryf gedereguleer en kon mededinging tussen verskillende rolspelers plaasvind. In hierdie studie word mededinging uit beide 'n historiese sowel as moderne perspektiefbestudeer. Moderne ekonomiese teorie stel dit dat mededinging tot voordeel van alle industrieë is en dat dit lei tot ekonomiese ontwikkeling. In die geval van rooibos sou mens geneig wees om te dink dat die unieke karakter van die produk en die feit dat 'n bestaande bemarkingskanaal alreeds bestaan, mededinging sou beperk in die post-Beheerraad tydvak. In hierdie studie is bevind dat deregulering gepaard gegaan het met intense prys-gedrewe mededinging in die uitvoermark, terwyl die binnelandse mark bykans geen mededinging ervaar rue. Die inligting vir hierdie tesis is verkry uit gepubliseerde Jaarverslae van die Rooibos Beheerraad en deur persoonlike onderhoude wat gevoer is met rolspelers binne die bedryf Twee strategieë word voorgestel waarmee die bedryf meer mededingend gemaak kan word: 1. Produk herposisionering as 'n gourmet gesondheidstee. 2. Verbeterde koordinasie binne die voorsieningskettings.
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Beyers, Andrea. "Ecological principles for honeybush (Cyclopia spp.) conservation and cultivation." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/5723.
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Market demand for the fynbos-derived honeybush (Cyclopia spp.) tea is on the rise, and there is an urgent need for better conservation of wild Cyclopia populations and for a shift to sustainable cultivation. Rooibos is another popular fynbos product that underwent exponential market growth over the last two decades but this resulted in large-scale conversion of pristine mountain fynbos to intensively-used crop lands. Adopting a conservation agriculture approach in expanding indigenous products will help in conserving biodiversity and ecosystem processes in this global biodiversity hotspot. Conservation agriculture of indigenous fynbos products grown in the Cape Floristic Region (CFR) should follow five main principles in order to maximise biodiversity conservation alongside agriculture. These principles are: 1) maintain high diversity at all levels, 2) conserve soil structure and processes, 3) conserve and restore natural ecosystem processes, 4) promote ecosystem stability and self-perpetuation, and 5) maintain natural areas as sources of ecosystem components. Given the negative ecological consequences of the industrialisation of the rooibos industry, it would be in the interest of biodiversity conservation, and even of agriculture, to apply these principles to honeybush cultivation. In order to prevent further fynbos habitat loss, cultivation of honeybush could be catalysed on old fields rather than in ploughed or cleared fynbos. Here I compare germination, growth and survival of two species (Cyclopia intermedia E.Mey. and C. subternata Vogel) between different land use types (ploughed lands, old fields and intact fynbos) and treatments (cleared and uncleared) in the Langkloof, Eastern Cape, over one year. Plots of each land use type were subject to each of these two treatments, although the ploughed plot constituted only a cleared treatment. Growth was highest on ploughed land, while survival and growth were lowest in uncleared fynbos. Cleared fynbos had the lowest germination success in both species, with the other sites and treatments coming out roughly the same. These results show that although ploughed lands give highest yields, growth and survival on old fields without ploughing is comparable with that on ploughed lands and is therefore a feasible alternative. Understanding the recruitment dynamics of honeybush is imperative for adequate conservation of wild populations. Furthermore, understanding this ecological aspect of the genus will help in developing the honeybush industry as a sustainable, agroecological market that uses semi-natural populations for production. Although Cyclopia species are early-successional species that germinate after fire, recruitment of Cyclopia pubescens Eckl. & Zeyh. continues throughout the inter-fire period. Cyclopia pubescens populations near Port Elizabeth were described according to their age structure and plant densities to discern possible density-dependent recruitment effects. Results showed that dense stands for the most part do not support high post-fire recruitment. This gives insight into suitable planting densities for new or restore populations and into management guidelines for remnant populations of threatened species. This thesis highlights important issues facing the honeybush industry. Mainstreaming biodiversity conservation into honeybush production is achievable, given that the industry is still relatively young, but this will require further research and strong market leadership.
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Barnardo, Nadia. "Sustainable harvesting of wild populations of Cyclopia intermedia in Kouga, Eastern Cape, South Africa." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020195.
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Cyclopia intermedia E. Mey is harvested from the wild to produce honeybush tea. The presence of a lignotuber and its slow growth seems to hinder the cultivation of this species and wild harvesting is likely to continue. Species distribution modelling indicated that C. intermedia has a climate envelope that spans from the Eastern Cape to the Western Cape along the Cape Fold mountains. This regional distribution is threatened under future climate change scenarios with a range loss and shift identified for climate conditions predicted for 2050. More specifically, its niche was identified as south-facing slopes with sandy to loamy sand soils and water holding capacity that is higher than the surrounding areas. Some keystone Fynbos species were found to share this niche: Leucadendron salignum, Leucospermum cuneiforme, Protea neriifolia, Protea repens, Elegia filacea and Rhodocoma fruticosa. Cyclopia intermedia grows throughout the summer with flowering buds developing in autumn. These enlarge during winter with the flowers opening in early spring. Pods develop in November and seed set occurs during December. Harvesting plants increases their fecundity with cut plants producing more than twice the number of pods and seeds compared to their non-harvested counterparts. This is because resprouting plants produce more flowering stems than uncut plants. Controlled harvesting or localised short-cycle burning could be considered as a management option to improve fecundity of declining Cyclopia intermedia populations in protected areas. C. intermedia harvesting could occur every third year and stem colour was identified as a measure of harvest maturity. Where at least 30 percent of the population has orange (RHS colour 163A) stems the population is suitable for harvesting.
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Carlisle, Juliet Hazel. "Member perspectives on the role of social capital in the success of the Heiveld Cooperative in the Northern Cape, South Africa." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1011734.
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The aim of this qualitative study is to explore the perspectives of current members of the cooperative regarding the role of social capital in the success of the Heiveld Cooperative on the Suid Bokkeveld in the Northern Cape, South Africa (SA). This cooperative has been cited by several researchers as being successful for various reasons, including the existence of a marketable resource, a steady increase in production, and certification through Fairtrade, resulting in an export market. Social capital, as a contributing factor to the success of the cooperative, has not however previously been investigated in depth. In light of the unique success of this cooperative, it is important to obtain an in-depth understanding of the role of social capital, if any, in its success, particularly in the formation and day-to-day operation of the cooperative. With a particular focus on the members’ perspectives of the cooperative, this qualitative research adopted a case study approach to explore and to gain multiple and subjective understanding of the role played by social capital in the success of the Heiveld Cooperative. This may assist the organisation under study, as well as similar initiatives, in strategically harnessing the benefits of social capital as a resource in future. This report has three interrelated sections. The first part is an academic paper, which includes a condensed literature review, research methods, results and discussions. The second part is an expanded literature review, while the third section details the research methods. It is vital to note that these sections are separate, but interrelated. Convenience sampling was used to identify current members of the cooperative who participated in this exploratory qualitative study. Four heterogeneous focus group discussions, with a total of 44 members of the Heiveld Cooperative in the Suid Bokkeveld, were conducted. The focus groups were heterogeneous, as they included ordinary members, founding members and committee members. A guideline with questions based on the theory of social capital was developed, and used to initiate or stimulate discussion among the members of the cooperative in order to address the key research question, namely: What was the role of social capital, if any, in the success of the Heiveld Cooperative in the Northern Cape as perceived by current cooperative members? The primary source of data was collected through focus group discussions, while secondary data was obtained from documents in a form of internal reports and papers written for the Heiveld Cooperative. Data was analysed using open coding and constant comparison techniques in order to induce emerging themes from the data. Findings of this study revealed that social capital played a major and influential role during the inception and also in the successful operation of the Heiveld Cooperative, by bonding and bridging not just between individual members, but also between communities, trading partners and other collaborators. Another key finding of this study is that social capital was also critical in enhancing supportive knowledge sharing, and the promotion of pride and shared identity, which the study identifies as aspects of cognitive social capital. Interestingly, the cognitive dimension of social capital in the Heiveld Cooperative has contributed to the weakening of social capital, as evident in claims related to lack of transparency and procedural injustice. Last, but not least, leveraging the sense of community has also been useful in promoting collective efficacy, strengthening familial togetherness, and enhanced democratisation of decision-making. Diminished trust, based on perceived oligarchy and nepotism is gradually weakening relational social capital. Findings in this study are illuminated using the social capital theory described by Nahapiet and Ghoshal (1998) to depict the social, cognitive and relational aspect of social capital that are at work at Heiveld Cooperative. Additionally, the social network theory by Hoppe and Reinelt (2010) is used to highlight the systemic view of social capital, which embraces the structural, relational and cognitive nature not only internal to but also between networks of the cooperative. Recommendations are provided to ensure social capital is harnessed, rather than undermined. These include the need to promote the processes of learning, monitoring and discussion that have been implemented; harnessing the benefits of bonding and bridging social capital; leveraging the sense of community and applying a more systemic view of social capital; and addressing perverse aspects of social capital such as nepotism and oligarchy that have been identified.
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Kunsevi-Kilola, Carine. "The effect of Rooibos on trace elements absorption and biochemical parameters : a murine model." Thesis, Cape Peninsula University of Technology, 2014. http://hdl.handle.net/20.500.11838/2248.
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Thesis (MTech (Biomedical Technology))--Cape Peninsula University of Technology, 2014.Over the past few decades, it has been shown that various critical diseases including heart disease, cancer, and diabetes associated with free radical generation and low endogenous antioxidant capacity, lead to oxidative stress and cell injury. In recent years, numerous studies have also reported that antioxidants, present in various beverages, vegetables and some foods have attracted a significant research interest due to their potential benefits to human health. However, epidemiological evidence shows a correlation between the intake of food rich in antioxidants and the reduced incidence of some mortality of chronic diseases, certain cancers and coronary heart disease. The aims of this study were to determine the effects of rooibos teas (fermented and unfermented) and green tea as a comparison on the biochemical parameters and the trace element absorption in a rat model. In this study 4 groups of experimental animals were used. All groups had ad libitum access to standard rat chow. Group A, the controls (11 animals), were fed with tap water; group B (11 animals) were fed with the liquid extract of fermented rooibos tea; group C (9 animals) were fed with the liquid extracts of unfermented rooibos and group 0 (9 animals) were fed with the liquid extract of green tea. All groups were fed for a period of 10 weeks. After the feeding period, the animals were sacrificed by euthanization with intraperitoneal injections of pentobarbital. Blood was sampled by cardiac puncture and centrifuged to obtain the serum. Some elemental analyses were performed with X-ray emission and backscattering. ICP-OES was used to determine the magnesium content. For X-ray emission, backscattering and ICP-OES analyses, 100 µL of each serum sample in a group were added to 2 ml freeze-drying tube. Of the combined specimen, 100 µL was used for the magnesium determination by ICP-OES. The remainder of the combined serum specimens for each group were freeze-dried at -80°C and then pressed into a pellet. The pellet was coated with carbon and analyzed using X-ray emission and backscattering. The elemental X-rays of P, S, Ca, Mn, Fe, Cu, Co, Zn, Mo, Ca and Se emitted were quantified to obtain the respective concentrations. Biochemical chemistry analyses were performed on each serum sample of each animal. The biochemical parameters tested for were total protein, albumin, globulin, total bilirubin, lactate dehydrogenase, blood urea nitrogen, uric acid, total cholesterol, aspartate aminotransferase, alanine aminotransferase, creatine phosphokinase and creatinine.
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Bokwe, Tobile T. "The impact of globalisation on the tea industry, with special reference to South Africa." Thesis, 2006. http://hdl.handle.net/10413/1410.
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There are many challenges facing business, industry and its operations, the associated service provision and the supply chain management in the global market today. Simon and Sohal (1995, p.14) acknowledge the dramatic and irreversible changes that the South African business environment has undergone over the past five years, from 1990 to 1995. Such changes are mainly shift of focus from inward-looking import substitution with substantial protection to a globally-oriented open economy. Businesses are faced with a challenge to optimise their operations to compete in the new economy. Many organisations have not survived the competition, as they lacked the necessary competitive edge. Challenges faced by these organisations varied from unavailability of suitably qualified management through to challenges with local legislation and the impacts of low-cost production imports, which led to closure of some businesses. From a community standpoint, closure of businesses poses a challenge to the socioeconomy of the inhabitants of the country. This research seeks to establish if the closure of businesses and subsequent impacts on the socio-economic status of communities was as a result of the changes during the globalisation era. Research methodology To address the objectives of the study, a population of tea "experts" was inferred from data received from DTI (2004). This inference was done through use of a ratio of 1 :60 (Manager: Labourers) due to the fact that the industry is labour-intensive. A total of 48 "experts" were identified as an adequate, representative sample for the analysis. These "experts" were from both the private tea industry and the govenunent regulatory departments involved with agricultural activities. A total of 96 questionnaires were sent to the "experts", with a return rate of 50% of these, which equated to the required sample size (of 48 completed questionnaires). Data analysis was carried out through using an Excel spreadsheet and converting frequency of responses to percentages. Objectives The objectives of the study included: • To identify issues and strategic challenges facing the global tea industry in the literature and applying them to the South African tea industry; • Analyse the tea estates in South Africa with specific reference to Magwa Tea Estate in the Eastern Cape, the old Transkei; • Identify appropriate strategies that may enhance the performance of the South African tea industry; • Assess the incentives provided by global governments to tea estates and compare them to the South African conditions; and • Examine the potential of applying some of the global success strategies into the South African tea estate industry. Conclusions While one cannot discount the phenomenon of globalisation, it has been shown that some areas in which business was devoid included capable management teams, flexibility on strategies, strengthening of the Rand and Land Claims against land occupied by the tea estates. The result was a collapse in the tea industry. The recommendations below suggest means by which the tea industry may be revived to carry its original mandate of providing jobs to the rural communities. However, the industry requires the development of sustainable competitive strategies. Recommendations • The organisation should continue to adopt a philosophy m which entrepreneurship is promoted and encouraged; • Ensure employment of a well-trained management team to develop and lead the strategy; • Encourage efficiency of operations; • Encourage government subsidies (especially in the form of regulations on imports to prevent dumping); • Employ appropriate competitive advantage strategies; • Root out corruption and mismanagement of the institution; Development of an interrelationship between the growers and retailers such that the growing of tea is sustainable; • They need to have strong communication skills which must encompass strong negotiation skills.Thesis (M.B.A.)-University of KwaZulu-Natal, Pietermaritzburg, 2006.
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Otieno, Dennis Ouma. "Treatment of tea industry effluents using a combined adsorption and advanced oxidation process." 2014. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001708.
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M. Tech. Chemical Engineering.Discusses the general objective of this research is to study the application of a combined advanced oxidation and adsorption process, with a view to developing a novel technique for the treatment of tea industry effluents prior to discharge into receiving water bodies. The specific objectives of the research are: a) To tailor natural zeolite physico-chemical properties in attempt to enhance its adsorptive performance ; b) To evaluate the decolourization efficiency of functionalized zeolite in tea industry effluent treatment. c) To evaluate the effect of the following operational parameters: pH, initial concentration,temperature and the sorbent mass, on the removal of colour in tea industry effluent. d) To apply adsorption and advanced oxidation independently and to combine the two into one process.
Books on the topic "Rooibos tea industry – South Africa"
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Saville, James. Rooibos tea and dust: A travel memoir of post-apartheid South Africa. Champaign, Ill: Common Ground Pub. LLC, 2012.
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Press, Duke University, ed. Steeped in heritage: The racial politics of South African rooibos tea. 2017.
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Barnes, Lynn. The story of rooibos tea: Made in South Africa. Awareness Publishing, 2018.
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Saville, James. Rooibos Tea and Dust: A Travel Memoir of Post-Apartheid South Africa. Common Ground Research Networks, 2012. http://dx.doi.org/10.18848/978-1-61229-026-3/cgp.
Full textBook chapters on the topic "Rooibos tea industry – South Africa"
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"South Africa: Rooibos Tea." In Extending the Protection of Geographical Indications, 326–41. Routledge, 2013. http://dx.doi.org/10.4324/9780203133316-24.
Full textConference papers on the topic "Rooibos tea industry – South Africa"
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Joubert, E. "Rooibos and honeybush phenolics as drivers of product development – impact on a sustainable South African herbal tea industry." In GA 2017 – Book of Abstracts. Georg Thieme Verlag KG, 2017. http://dx.doi.org/10.1055/s-0037-1608028.
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