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Analysis of Thaumatin (TMT) by Raman Spectroscopy (CAT#: STEM-ST-0014-WXH)

Introduction

Thaumatin (TMT) is an intensely sweet protein and was first found in the mixture isolated from the katemfe fruit (Thaumatococcus daniellii Benneth) of west Africa. TMT’s sweetening power is about 1600 times higher than that of sucrose on a weight basis or 100 000 on a molar basis, and TMT is practically the only sweet protein that has been actually used as a sweetener.




Principle

Raman Spectroscopy is a non-destructive chemical analysis technique which provides detailed information about chemical structure, phase and polymorphy, crystallinity and molecular interactions.
The principle behind Raman spectroscopy is that the monochromatic radiation is passed through the sample such that the radiation may get reflected, absorbed, or scattered. The scattered photons have a different frequency from the incident photon as the vibration and rotational property vary.

Applications

• Analysis of biocompatibility of a material.
• Analysis of nucleic acids.
• Study of interactions between drugs and cells.
• Photodynamic therapy (PDT).
• Analyzing metabolic accumulations of a substance or compounds.
• Diagnosis of disease.
• Analysis of individual cells.
• Cell sorting applications.
• Analyzing the features of biomolecules.
• Study of bone structure.

Procedure

1. Preparation of samples
2. Determine instrument parameters
3. Perform background scan
4. Test the sample
5. Data analysis

Materials

• Raman Spectrometer
• Raman Imaging Microscope
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