Phenolic content and antioxidant activity of rooibos food ingredient extractsJOUBERT, Elizabeth; BEER, Dalene De.Journal of food composition and analysis (Print). 2012, Vol 27, Num 1, pp 45-51, issn 0889-1575, 7 p.Article

Development of HPLC method for Cyclopia subternata phenolic compound analysis and application to other Cyclopia sppDE BEER, Dalene; JOUBERT, Elizabeth.Journal of food composition and analysis (Print). 2010, Vol 23, Num 3, pp 289-297, issn 0889-1575, 9 p.Article

Quantification of quality parameters for reliable evaluation of green rooibos (Aspalathus linearis)SCHULZ, Hartwig; JOUBERT, Elizabeth; SCHÜTZE, Wolfgang et al.European food research & technology (Print). 2003, Vol 216, Num 6, pp 539-543, issn 1438-2377, 5 p.Article

Evaluation of the phytoestrogenic activity of Cyclopia genistoides (Honeybush) methanol extracts and relevant polyphenolsVERHOOG, Nicolette J. D; JOUBERT, Elizabeth; LOUW, Ann et al.Journal of agricultural and food chemistry (Print). 2007, Vol 55, Num 11, pp 4371-4381, issn 0021-8561, 11 p.Article

Selective extraction of Cyclopia for enhanced in vitro phytoestrogenicity and benchmarking against commercial phytoestrogen extractsMFENYANA, Ciko; DEBEER, Dalene; JOUBERT, Elizabeth et al.Journal of steroid biochemistry and molecular biology. 2008, Vol 112, Num 1-3, pp 74-86, issn 0960-0760, 13 p.Article

In situ flavonoid analysis by FT-raman spectroscopy : Identification, distribution, and quantification of aspalathin in green rooibos (Aspalathus linearis)BARANSKA, Malgorzata; SCHULZ, Hartwig; JOUBERT, Elizabeth et al.Analytical chemistry (Washington, DC). 2006, Vol 78, Num 22, pp 7716-7721, issn 0003-2700, 6 p.Article

Use of NIRS for quantification of mangiferin and hesperidin contents of dried green honeybush (Cyclopia genistoides) plant materialJOUBERT, Elizabeth; MANLEY, Marena; BOTHA, Mariza et al.Journal of agricultural and food chemistry (Print). 2006, Vol 54, Num 15, pp 5279-5283, issn 0021-8561, 5 p.Article

Reversed-phase HPLC determination of mangiferin, isomangiferin and hesperidin in Cyclopia and the effect of harvesting date on the phenolic composition of C. genistoidesJOUBERT, Elizabeth; OTTO, Frank; GRÜNER, Sabine et al.European food research & technology (Print). 2003, Vol 216, Num 3, pp 270-273, issn 1438-2377, 4 p.Article

Enhancing aspalathin stability in rooibos (Aspalathus linearis) ready-to-drink iced teas during storage: the role of nano-emulsification and beverage ingredients, citric and ascorbic acidsDE BEER, Dalene; JOUBERT, Elizabeth; VILJOEN, Melvi et al.Journal of the science of food and agriculture. 2012, Vol 92, Num 2, pp 274-282, issn 0022-5142, 9 p.Article

Unravelling the total antioxidant capacity of pinotage wines contribution of phenolic compoundsDE BEER, Dalene; JOUBERT, Elizabeth; MARAIS, Johann et al.Journal of agricultural and food chemistry (Print). 2006, Vol 54, Num 8, pp 2897-2905, issn 0021-8561, 9 p.Article

Effect of temperature and fruit-moisture content on discolouration of dried, sulphured Bon Chretien pears during storageJOUBERT, Elizabeth; WIUM, Gideon L; SADIE, Annalene et al.International journal of food science & technology. 2001, Vol 36, Num 1, pp 99-105, issn 0950-5423Article

Enhancing the polyphenol content of a red-fleshed Japanese plum (Prunus salicina Lindl.) nectar by incorporating a polyphenol-rich extract from the skinsDE BEER, Dalene; STEYN, Naomi; JOUBERT, Elizabeth et al.Journal of the science of food and agriculture. 2012, Vol 92, Num 13, pp 2741-2750, issn 0022-5142, 10 p.Article

Effect of Heat on Aspalathin, Iso-orientin, and Orientin Contents and Color of Fermented Rooibos (Aspalathus linearis) Iced TeaJOUBERT, Elizabeth; VILJOEN, Melvi; DE BEER, Dalene et al.Journal of agricultural and food chemistry (Print). 2009, Vol 57, Num 10, pp 4204-4211, issn 0021-8561, 8 p.Article

Effect of Pre-drying Treatments and Storage on Color and Phenolic Composition of Green Honeybush (Cyclopia subternata) Herbal TeaJOUBERT, Elizabeth; MANLEY, Marena; MAJCU, Christina et al.Journal of agricultural and food chemistry (Print). 2010, Vol 58, Num 1, pp 338-344, issn 0021-8561, 7 p.Article

Variation in Phenolic Content and Antioxidant Activity of Fermented Rooibos Herbal Tea Infusions: Role of Production Season and Quality GradeJOUBERT, Elizabeth; BEELDERS, Theresa; DE BEER, Dalene et al.Journal of agricultural and food chemistry (Print). 2012, Vol 60, Num 36, pp 9171-9179, issn 0021-8561, 9 p.Conference Paper

Identification of bacterial species on Lippia multiflora herbal tea leaves and the influence of steam pasteurizationARTHUR, Hanson; CAMERON, Michelle; JOUBERT, Elizabeth et al.World journal of microbiology & biotechnology. 2011, Vol 27, Num 2, pp 443-447, issn 0959-3993, 5 p.Article

Polyphenols from Honeybush tea (Cyclopia intermedia)KAMARA, B. Irene; BRANDT, E. Vincent; FERREIRA, Daneel et al.Journal of agricultural and food chemistry (Print). 2003, Vol 51, Num 13, pp 3874-3879, issn 0021-8561, 6 p.Article

Rapid measurement and evaluation of the effect of drying conditions on harpagoside content in Harpagophytum procumbens (Devil's claw) rootJOUBERT, Elizabeth; MANLEY, Marena; GRAY, Brian R et al.Journal of agricultural and food chemistry (Print). 2005, Vol 53, Num 9, pp 3493-3502, issn 0021-8561, 10 p.Article

Superoxide anion and α, α-diphenyl-β-picrylhydrazyl radical scavenging capacity of rooibos (Aspalathus linearis) aqueous extracts, crude phenolic fractions, tannin and flavonoidsJOUBERT, Elizabeth; WINTERTON, Paula; BRITZ, Trevor J et al.Food research international. 2004, Vol 37, Num 2, pp 133-138, issn 0963-9969, 6 p.Article

An investigation on the antimutagenic properties of South African herbal teasMARNEWICK, Jeanine L; GELDERBLOM, Wentzel C. A; JOUBERT, Elizabeth et al.Mutation research. Genetic toxicology and environmental mutagenesis. 2000, Vol 471, Num 1-2, pp 157-166, issn 1383-5718Article

Antioxidant activity of South African red and white cultivar wines: Free radical scavengingDE BEER, Dalene; JOUBERT, Elizabeth; GELDERBLOM, Wentzel C. A et al.Journal of agricultural and food chemistry (Print). 2003, Vol 51, Num 4, pp 902-909, issn 0021-8561, 8 p.Article

Aspalathin, a flavonoid in Aspalathus linearis (rooibos), is absorbed by pig intestine as a C-glycosideKREUZ, Susanne; JOUBERT, Elizabeth; WALDMANN, Karl-Heinz et al.Nutrition research (New York, NY). 2008, Vol 28, Num 10, pp 690-701, issn 0271-5317, 12 p.Article

Characterization of Volatiles and Aroma-Active Compounds in Honeybush (Cyclopia subternata) by GC-MS and GC-O AnalysisLE ROUX, Maritha; CHRISTEL CRONJE, J; BURGER, Barend V et al.Journal of agricultural and food chemistry (Print). 2012, Vol 60, Num 10, pp 2657-2664, issn 0021-8561, 8 p.Article

Antioxidant activity of South African red and white cultivar wines and selected phenolic compounds: In vitro inhibition of microsomal lipid peroxidationDE BEER, Dalene; JOUBERT, Elizabeth; GELDERBLOM, Wentzel C. A et al.Food chemistry. 2005, Vol 90, Num 4, pp 569-577, issn 0308-8146, 9 p.Article

Modeling of the total antioxidant capacity of rooibos (Aspalathus linearis) tea infusions from chromatographic fingerprints and identification of potential antioxidant markersORZEL, Joanna; DASZYKOWSKI, Michal; KAZURA, Malgorzata et al.Journal of chromatography. 2014, Vol 1366, pp 101-109, issn 0021-9673, 9 p.Article