Browsing by Supervisor "Wilkins, Alistair L."
Now showing items 1-20 of 21
-
A new technology for imparting oak character to wine: application to a New Zealand chardonnay wine
(The University of Waikato, 1998)An analytical method using gas chromatography combined with mass spectrometry in selected ion mode (GC/MS-SIM) was developed to monitor the levels of aromatic woody compounds present in a New Zealand Chardonnay wine at the ... -
Analysis of Nucleosides and Nucleotides in Milk and Infant Formula
(University of Waikato, 2013)Nucleotides have been routinely supplemented to infant formulas due to the important roles they play in metabolism and to replicate the higher concentrations typically found in human milk. A method utilising anion exchange ... -
Antifungal terpenoid and troponoid analogues for wood durability enhancement
(The University of Waikato, 2002)Aspects of the development of novel analogues of terpenoid and tropolone natural products with antifungal properties against important wood deteriorating fungi are reported. Antifungal wood extractives and essential oil ... -
Aspects of the chemistry of some persistent organic contaminants and their removal from river and wastewater
(The University of Waikato, 2001)Liquid/liquid extraction, glass fibre and 3-0.05 µm filtration and SIM-GC/MS procedures were used to determine the levels of free and particle bound resin acids in Tarawera River water samples collected at the State Highway ... -
Chemical aspects of saponin bioactivity and ovine photosensitization diseases
(The University of Waikato, 2004)A general review of saponin chemistry, bioactivities and of chemical aspects of saponin-associated hepatogenous photosensitization of ruminants (sheep, goats, and cattle) is presented. A field trial was undertaken to ... -
Chemical aspects of some ovine hepatogenous photosensitization diseases
(The University of Waikato, 1999)Current understandings of the chemistry, aetiology of saponin-associated hepatogenous photosensitization diseases of ruminants (sheep, cattle, goats and deer), the distribution of saponins in causative plants (Agave ... -
Extractable organics and colour in a bleached kraft mill effluent land application system and recipient ground waters
(The University of Waikato, 1997)This thesis describes a study of the behaviour of extractable organics and colour in a land application system used to treat highly coloured, organic-rich, alkali extraction stage and foul condensate effluents from a ... -
Indicators of Bioactivity and Floral Origin of New Zealand Honeys
(The University of Waikato, 2009)The hypothesis that NIR might be capable of discriminating one floral source from another was explored. No prior analysis of NIR for New Zealand honeys has been reported. A visual inspection of the NIR spectra of ten New ... -
Isolation, Characterization and Synthesis of a Phenyl-substituted Pyrrole Isolated from the Flavonoid Fraction of Mānuka Honey
(University of Waikato, 2011)Compound 1, which occurs in the flavonoid fraction of mānuka honey and showed a statistical correlation with the non-peroxide antibacterial activity of the honeys, was extracted from fifteen kilograms of mānuka honey using ... -
Mass Spectral Characterisation of Three New Groups of Algal Toxins
(The University of Waikato, 2009)This thesis reports the mass spectral identification and characterisation of three new groups of algal compounds. A series of novel pectenotoxins (PTXs) were identified in retained sub-samples of Irish mussel extracts ... -
Organophosphorus chemistry of camphene
(The University of Waikato, 1999)Chapter one reviews the literature relating to terpene-phosphorus chemistry. Topics include a summary of the phosphorus chemistry of the monoterpenes and terpenoids camphor, menthol, camphene and pinene. A general discussion ... -
Persistence and availability of agrichemical residues in New Zealand horticultural soils
(The University of Waikato, 2006)New Zealand has a long history of intensive horticulture and many of the greenfield sites designated for residential development have previously been extensively used for horticulture. Currently there is limited information ... -
Real Time NMR Analysis of Melamine Formaldehyde Resin Reactions
(University of Waikato, 2012)This investigation was carried out on behalf of the Momentive Specialty Chemicals Pty Ltd, Mt Maunganui. The aim of the investigation was to develop a method to analyse the formation of melamine formaldehyde resins via an ... -
Refinement of LC-MS Methodology for the Analysis of Saponins
(The University of Waikato, 2010)Systematic evaluation of the factors affecting LC-MS detection of some saponins and sapogenins associated with hepatogenous photo-sensitisation diseases in livestock, as determined using a Thermo Finnigan LCQ Advantage ... -
Seasonal Comparison of Lipid Composition and Metabolism in Parasitised and Non-Parasitised Clover Root Weevil (Sitona lepidus)
(University of Waikato, 2014)Since its arrival in New Zealand the clover root weevil (Sitona lepidus (syn. flavescens) (Coleoptera: Curculionidae) (CRW) has caused serious damage to New Zealand’s agricultural sector. The introduction of the biocontrol ... -
Some structural and photochemical studies in triterpenoids
(The University of Waikato, 2000)This thesis describes the photochemical behaviour of 22-hydroxyhopan-7-one, hop-22(29)-en-7-one, 22-hydroxyhopan-15-one, hop-21-en-15-one, hop-22(29)-en-15-one, hopan-15-one and 21α-H-hopan-15-one in different solvents, ... -
Sorption, degradation and transport of veterinary antibiotics in New Zealand pastoral soils
(University of Waikato, 2013)Veterinary antibiotics are used worldwide for prevention and treatment of various diseases of livestock animals. After administration, the majority of antibiotics are excreted in urine and faeces as unchanged parent compound, ... -
Structural characterisation and absolute stereochemistry of some degraded carotenoids from New Zealand honeys
(The University of Waikato, 1998)The structures and absolute stereochemistries of some degraded carotenoids from New Zealand native honeys were elucidated. Determination of the absolute stereochemistry of 3,5,6-trihydroxy-β-ionone was attempted by an ... -
Studies of the formation and properties of urea-formaldehyde resin adhesives
(The University of Waikato, 2001)Urea-formaldehyde (UF) resin is used primarily as an adhesive for manufacturing wood panels (medium density fiberboard, particleboard and plywood). These are important New Zealand export products. A better understanding ... -
The synthesis and reactivity of B-aryl {i.e. Beta -aryl} lignin model quinone methides
(The University of Waikato, 1987)A range of l,2-diarylpropane-1,3-diols and 2,3-dihydro-2-aryl-7- methoxy-benzofurans were synthesised as model compounds for the B-5 (phenylcoumaran) structural unit found in wood lignin. The syntheses were performed ...
