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Laboratory Exercises

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View Resource Starch Hydrolysis [pdf]

A significant proportion of the cornstarch derived from the wet milled process used for food goes into the fermentation of beer. To be useful to the breweries, it first has to be converted into dextrose or d-glucose. This is an example of down-stream processing; a raw material is isolated and used as a starting material in another process.

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http://www.bio-link.org/pdf/starch.pdf
View Resource Detect Genetically Modified Food

Genetically modified foods are often in the news and widely grown in the United States. Three US government agencies (USDA, FDA, and EPA) work to regulate the introduction and production of genetically modified foods. These crops can provide agricultural, ecological and nutritional benefits, but there are also potential risks to the environment and consumers. As consumers and public interest...

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http://www.bio-link.org/home/resources/guides/genetically-mo...
View Resource Minitube Immunoblot

This laboratory uses an Enzyme Linked Immuno-assay to detect the presence of TMV antigens in tobacco products.

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http://www.bio-link.org/GMP/Tmv2.htm
View Resource Using Random Amplified Polymorphic DNA (RAPD) Analysis to Examine Phylogenetic Distance Among Different Plant Species

RAPD PCR is used in this laboratory exercise to generate profiles of different types of lettuce. Software that analyzes the band patterns determines the genetic similarity between these species. The exercise presents background information, materials needed, procedure guidelines, and discussion questions.

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http://www.bio-link.org/GMP/Rapdlab1.htm
View Resource Gas Chromatography-Mass Spectrometry Experiment [doc]

Gas Chromotography-Mass Spectrometry (GC-MS) is an analytical instrument used in many laboratory testing situations. Here is a laboratory exercise that explains and uses this methodology to analyse DMSO. Plenty of images and screenshots accompany this exercise, as well as group discussion questions and questions for individual exploration of mass spectrometry online.

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http://www.bio-link.org/GMP/solow.doc
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