Category: G
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Garnish
To add decorative or savory touches to food. A garnish is some sort of food accompanying another dish and complementing the flavour and appearance of that dish; a garnish can be as simple as a sprig of parsley or as elaborate as a ragout blended with sauce and poured into a pastry shell. In origin,…
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Garbage
Food waste. Five hundred years ago, it was not uncommon for a housewife to serve her family a supper of garbage, a meal they would devour with relish. The family relished such a meal because back then the word garbage did not mean trash or rubbish but instead referred to what we now call organ…
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Gantt chart
A chart showing an outline plan with given duration time for each step or process. A scheduling tool essentially comprised of a bar chart with time on the horizontal axis and the resource to be scheduled on the vertical axis.
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Guanine
A purine base. It occurs naturally as a fundamental component of nucleic acids. A purine base found in DNA and RNA. One of the purine bases in DNA and RNA. Purine bases are degraded to urate and excreted in the urine.
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Growth faltering
A term indicating that a child’s linear or ponderal growth is falling away from the reference trend. This implies that weight or height has been measured at intervals over a period of time.
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Green revolution
A process in which cereal crop yields increased as a result of farmer adoption of high yielding varieties bred at international agricultural research centres and adapted to local conditions at national agricultural research institutions. Planting of these varieties has coincided with expansion of irrigated area and fertiliser use.
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Gram-negative, gram-positive
A method of classifying bacteria depending on whether or not they retain crystal-violet dye (Gram stain) after staining and decolourising with alcohol.
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Gomez classification
One of the earliest systems for classifying protein energy malnutrition in children, based on percentage of expected weight for age: over 90% is normal, 76-90% is mild (first degree) malnutrition, 61-75% is moderate (second degree) malnutrition and less than 60% is severe (third degree) malnutrition.
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Goitrogens
Substances found in foods (especially Brassica spp. but including also groundnuts, cassava, and soya bean) which interfere with the synthesis of thyroid hormones (glucosinolates) or the uptake of iodide into the thyroid gland (thiocyanates), and hence can cause goitre, especially when the dietary intake of iodide is marginal. Substances that cause goiters. These occur in…
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Glycosidic
Ether-type bond formed by the hydroxyl group of a sugar displacing the hydroxyl group of a second sugar or other molecule.