Effect Of Sucrose Concentration On The Rate Of Fermentation Of Yeast

Superior Essays
Introduction
Yeast
Humans have been using alcohol fermentation capability of yeast for the production of bread, crackers, beer and wine. Yeast is beneficial in the food industry as it is used for bread making, the yeast is mixed with white flour then fermentation begins which allows the bread to swell because of the pressure. During this process there are two ATP molecules for each glucose molecule fermented, yeast is a source of food as it has substances and proteins, dried yeast has about 40-50% of protein.
Yeast is a unicellular fungus that reproduces. One of the main characteristics of yeast is used to find species. They tend to grow as single cells which then produces cells by budding. The cells then divide into one saccharomycetales which
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Glucose and fructose are structural isomers as their carbonyl groups are in different positions. Glucose and fructose have a six carbon ring structure which is found in fruit, honey and food production, this is important for energy. Glucose and fructose can be converted into fat if it was to be highly consumed.
Whereas, sucrose and lactose are disaccharides, which are two monosaccharides linked together. The major source for sucrose is table sugar and plants. Plants use sucrose to transport glucose while, lactose is found in primary sugar which is in milk and milk products. These are dietary carbohydrates, consumed to monosaccharides.
Xylitol is a natural carbohydrate with a five carbon sugar alcohol that is found in plant parts and metabolism in humans. German and French researchers were the first who made xylitol chemically over 100 years ago. The reaction was discovered when sodium amalgam deduction of d-xylose.
A rapid reaction rate increases the products depending on carbohydrates with the yeasts enzyme transport system. The transport system allows yeast to bring selected carbohydrates to their cells. In this experiment we tested the effect of different carbohydrate substances on yeast fermentation. We researched how efficient yeast used certain carbohydrates and the rate of between various
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Sucrose and lactose are mono-saccharides therefore they are not single sugars; they are disaccharides or double sugars. Yeasts as a living organism has to break carbohydrates into simple sugars from glucose to fructose. As sucrose is a double sugar, made up of glucose and fructose linked together the enzyme that breaks the double sugar makes it into single sugars is common in living organisms such as yeast. Under some acidic conditions, sucrose breaks into two single sugars on its own, from glucose and

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