Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Andreas G. J. Tredoux"'
Publikováno v:
Animals, Vol 13, Iss 3, p 369 (2023)
In cheetahs, age at first parturition correlates negatively with reproductive lifespan (asymmetric reproductive aging); therefore, breeding cheetahs at a young age is essential to maximize reproductive performance in this species. However, younger fe
Externí odkaz:
https://doaj.org/article/9acbdf0cdee34027b2e8d3ffb8d52f08
Publikováno v:
Animals, Vol 12, Iss 17, p 2284 (2022)
Scent is known to play an important role in the reproduction of cheetahs and other felids. In fact, the presence/odor of a male cheetah has been noted to trigger the estrous cycle in females. The objective of this study was to analyze the marking flu
Externí odkaz:
https://doaj.org/article/bd2bf772aa584198b8ee2372b0721c53
Autor:
Andreas G. J. Tredoux, André de Villiers, Marieta van der Rijst, Chantelle Human, Magdalena Muller, Dalene de Beer, Elizabeth Joubert, Marique Aucamp
Publikováno v:
Molecules
Volume 26
Issue 17
Molecules, Vol 26, Iss 5260, p 5260 (2021)
Volume 26
Issue 17
Molecules, Vol 26, Iss 5260, p 5260 (2021)
Green rooibos extract (GRE), shown to improve hyperglycemia and HDL/LDL blood cholesterol, has potential as a nutraceutical beverage ingredient. The main bioactive compound of the extract is aspalathin, a C-glucosyl dihydrochalcone. The study aimed t
Publikováno v:
Journal of Animal Science. 100:137-137
Volatile semiochemicals released, amongst other methods, through marking fluid (MF), and characterized by scent/odor, are involved in communication and identification of an individual. Scent has an important role in reproduction of cheetahs and other
Publikováno v:
Chromatographia. 82:181-196
Phenolics are a large group of secondary plant metabolites that are of interest because of their proposed health benefits. The analysis of plant phenolics is challenging due to their extreme structural diversity. Comprehensive two-dimensional liquid
Publikováno v:
Journal of Chromatography A. 1571:107-120
Method development and optimisation for comprehensive two-dimensional liquid chromatography (LC × LC) is complex, since this involves the intricate relationships between a large number of experimental parameters with the aim of achieving three confl
Autor:
Elizabeth Joubert, André de Villiers, Gaalebalwe Ntlhokwe, Andreas G. J. Tredoux, Magdalena Muller
Publikováno v:
Journal of Chromatography A. 1536:137-150
The volatile composition of honeybush ( Cyclopia ) species was studied by comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC × GC-TOF-MS). Headspace-solid phase micro-extraction (HS-SPME) was used to ext
Autor:
Elizabeth Joubert, Dalene de Beer, Andreas G. J. Tredoux, André de Villiers, William J. Arries
Publikováno v:
ELECTROPHORESIS. 38:897-905
Rooibos and honeybush are popular herbal teas produced from the shrubs of Aspalathus linearis and Cyclopia spp., respectively, which are indigenous to South Africa. Both herbal teas are rich in polyphenols and their consumption is associated with sev
Autor:
André de Villiers, Jochen Vestner, Andreas G. J. Tredoux, Chandré M. Willemse, Maria A. Stander
Publikováno v:
Analytical Chemistry
Analytical Chemistry, American Chemical Society, 2015, 87 (24), pp.12006-12015. ⟨10.1021/acs.analchem.5b03615⟩
Analytical Chemistry, American Chemical Society, 2015, 87 (24), pp.12006-12015. ⟨10.1021/acs.analchem.5b03615⟩
International audience; Changes in anthocyanin chemistry represent some of the most important transformations involved in red wine aging. However, accurate analysis of the derived pigments, as required to study the evolution of anthocyanins and tanni
Autor:
Maria A. Stander, Harald Pasch, Jochen Vestner, Andreas G. J. Tredoux, Magriet Muller, André de Villiers, Pieter Venter
Publikováno v:
Analytical chemistry. 90(19)
Comprehensive two-dimensional liquid chromatography (LC × LC) and ion mobility spectrometry-mass spectrometry (IMS-MS) are increasingly being used to address challenges associated with the analysis of highly complex samples. In this work, we evaluat