RATIONALE Isotope ratio mass spectrometry (IRMS) is used extensively to reconstruct general attributes of prehistoric and modern diets in both humans and animals. In order to apply these methods to the accurate determination of specific intakes of foods/nutrients of interest, the isotopic signature of individually consumed foods must be constrained. For example, 86% of the calories consumed in ...

Stillage or vinasse, which is a byproduct of ethanol production, is produced from the fermentation of molasses and is used as a source of potassium on cane fields at Simunye-Royal Swaziland Sugar Corporation. Due concern regarding its high salt content and Chemical Oxygen Demand (COD), a trial was established on an S set soil (Mayo form) to study the effect of increasing levels of concentrated ...

Recovery of sugars from cane molasses (i.e. the by-product of sugar industries) is of great interest to industry and academia. The prerequisite for refning cane molasses is removal of pigments and suspended solids present in the molasses. In this work, the utilization of membrane separation for clarifcation and decoloration of cane molasses has been examined. Three oper...

Partitioning of dry matter (DM) in sugarcane is of interest for two fundamental reasons. Firstly sugar production depends directly on partitioning of biomass to the stalk and then to sucrose stored in the stalk. Secondly, various DM components of the stalk and particularly sucrose concentration are used to calculate the value of cane consignments delivered to the mill (Berding, 1997). The value...

The aim of the paper was the identification and the quantitative evaluation of the following inorganic anions: chloride, phosphate, nitrate, nitrite, sulphate and the following organic acids: lactic, acetic, formic, malic and citric in commercial "unrefined" brown cane sugars and in cane raw sugars. The determination was carried out by high performance anion exchange chromatography with conduct...

OF PAPERS TWENTY-SECOND ANNUAL SUMMARY OF CHEMICAL LABORATORY REPORTS South African Sugar Factories, Season 1946-47~ By H. H. DODDS and J. L. DU Torr. For the third successive year rainfall, 32.02 inches, and humidity have been very low, though the rainfall was not quite so unfavourably distributed as in the two preceding years. The mean annual temperature, 69.4°F., was considerably above the a...

The existence of a fat-soluble dietary factor essential for guinea pig nutrition was well established through investigations by Wulzen and Bahrs (l-3) and has been confirmed by Anderson and Caldwell.’ The isolation of a highly active fraction from raw cream, capable of alleviating an induced stiffness in guinea pigs, was described by van Wagtendonk and Wulzen (4). It seems apparent from physiol...