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13. Plant Tissue Culture

This Association for Science Education (ASE) publication about plant tissue culture was developed in association with Unilever plc. At the time Unilever was a major producer of consumer goods: mainly food and drinks, detergents and toilet preparations.The booklet contained guidance for teachers and notes for students...
Publication date:
1980 - 1989

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12. Physics of Fluid Flow

This Association for Science Education (ASE) publication about the physics of fluid flow was developed in association with the Dowty Group,. At the time, the company had four divisions that were Aerospace and Defence, Mining, Industrial, and Electronics. The Group employed almost 15,000 people.The booklet contained...
Publication date:
1980 - 1989

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Investigations with ELISA: using SAPS ELISA kit for Botrylis

The SAPS ELISA kit for Botrytis has been developed as a low cost kit to bring practical immunology into the classroom. The monoclonal antibody in the kit detects Botrytis, a fungal pathogen. Botrytis infects plant material (such as strawberries, raspberries, tomatoes and flowers) and is of considerable importance in...
Publication date:
2010 to date

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Flying Tinsel

Publication date:
2010 to date

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Testing the Viability of Yeast

Several different treatments are used to autolyse yeast cells. The viability of the autolysed yeast is then tested by: plating out on agar; testing for dehydrogenase activity; microscopic examination with methylene blue.BackgroundIn the food industry, yeast is grown in huge fermenters and then given different...
Publication date:
2000 - 2009

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Fruit Juice Production

Fruit juice companies use a variety of different treatments and enzymes to maximise their yield. In this experiment students will investigate the effectiveness of these different enzymes.The enzymes used are designed to break down cells walls and release the liquids and sugars which make up the fruit. Pectinases,...
Publication date:
2000 - 2009

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Converting Milk Products Using Lactase

The enzyme lactase is widely used in the dairy industry to convert the naturally occurring disaccharide sugar lactose into glucose and galactose. In this practical students investigate the treatment of milk with lactase. Following treatment they test the glucose content of the converted milk, and compare products...
Publication date:
2000 - 2009

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Upgrading Whey

Whey is a waste product from the cheese industry. In this experiment students upgrade whey, by converting the lactose into glucose and galactose, or by growing the microorganism K.lactis on agar containing whey.Cheese companies are currently developing ways of upgrading the whey so that they can increase their profits...
Publication date:
2000 - 2009

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Fungal Inhibition

In this experiment students grow yeast on agar plates and look at the effect on growth of some common anti-fungal treatments, which are available to treat conditions such athlete's foot and thrush. Antifungal products may be bought from a local pharmacist, for example, Canistan, Daktarin, Diflucan. Several...
Publication date:
2000 - 2009

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Determining Doubling Time

As the number of cells in a microbial culture increases, turbidity increases. In this experiment students calculate doubling time and growth rate constant using absorbance as the measure of growth. Turbidity is caused by suspended cells in the growth medium scattering light, and may be measured using a colorimeter...
Publication date:
2000 - 2009

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