Submit Your Request Now

Thermal Stability Analysis

It is been reported that amylose molecules are not present as bundles in the amorphous regions within starch granules. They are rather interspersed among amylopectin. The amount of the structures in the starch granule highly depends of its botanical origin. Thermal degradation of starches is the most important issue with their use.

Thermal processing of starch has been largely used in the production of starch-based materials and in food industry. Thermal degradation and stability during processing are important issues from both scientific and industrial perspectives. The unique microstructure of starch and its multiphase transitions during thermal processing provide an excellent model system to illustrate the conceptual approach to investigating the structure–processing–property relationships in most polymers.

The thermal decomposition and stability of starch rely upon its microstructures (such as amylose/amylopectin content and MW), modification and processing conditions.

Thermal Stability Analysis Figure 1. Example of thermogravimetric analysis (TGA) comparing native starches ^[1]

There have been a variety of techniques used for studying thermal decomposition of starch, such as thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), fourier transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, electron paramagnetic resonance (EPR), and mass spectrometry (MS).

TGA has been used widely as a suitable technique to investigate the thermal stability and decomposition of starch & starch-based materials and to determine the content of starch and other components that are generally present in mixtures of starch with artificial polymers. It is a technique that the mass of sample is measured as a function of temperature or time while the sample is subjected to a controlled temperature program in a controlled atmosphere. Dehydration and decomposition have generally been considered as the two major processes associated with the degradation mechanisms of starch in an open system.

The example of the TG analysis is shown is Figure 1. There are four stages of starch decomposition in this study. It is clearly seen that the thermographs of the three native starches (from rice, wheat, and corn) are quite similar, so the rice starch and wheat starch are almost identical and have similar thermal properties. The TGA graph for potato starch seems very different, because of differences in the structure caused by different amounts of polymer compounds and thus the crystalline and amorphous region as well as the granule size.

As one of the leading companies in the omics field with over years of experience in omics study, Creative Proteomics provides glycomics analysis service customized to your needs. Contact us to discuss your project.

How to place an order:

Ordering Procedure

*If your organization requires signing of a confidentiality agreement, please contact us by email.

References

Marita Pigłowska, Beata Kurc, Łukasz Rymaniak, Piotr Lijewski, Paweł Fuć (2020) Kinetics and Thermodynamics of Thermal Degradation of Different Starches and Estimation the OH Group and H2O Content on the Surface by TG/DTG-DTA. Polymers, 12(2), 357.
Liu, X., Wang, Y., Yu, L., Tong, Z., Chen, L., Liu, H. and Li, X. (2013) Thermal degradation and stability of starch under different processing conditions. Starch, 65: 48-60.

* For Research Use Only. Not for use in diagnostic procedures.

Our customer service representatives are available 24 hours a day, 7 days a week. Inquiry

From Our Clients

"I recently used their proteomics service for a project analyzing protein interactions in yeast models. The team was very responsive and helped clarify the methodology they employed, which made me feel confident in the results. The data quality was solid, with clear identification of several key proteins involved in our study. Their thorough analysis enabled me to pinpoint specific interactions that I hadn't considered before, which significantly improved the direction of my research. I appreciate their professionalism and support throughout the process."

Sarah Thompson, University of California, Berkeley

"Our lab collaborated with them on a project studying cancer biomarkers. The proteomics analysis provided was detailed and focused, specifically highlighting the differential expression of proteins between healthy and tumor samples. Their clear explanations of the data helped my team understand the biological implications. I also appreciated their willingness to revise the reports based on our feedback, ensuring that we had everything we needed for our publication. This collaborative spirit was invaluable."

Emily Rodriguez, Stanford University

"Our lab worked with them on a project studying the effects of diet on gut microbiota using proteomics. They used a label-free quantification method to analyze proteins in fecal samples before and after dietary intervention. The results showed significant changes in protein expression linked to microbial activity. This was pivotal for our hypothesis about diet-microbiota interactions. The clarity of their data presentation made it easy for our team to integrate these findings into our ongoing research."

Dr. Lisa Wong, University of Toronto

"My experience with Creative Proteomics during the mass spectrometry analysis was excellent. We sent in human saliva and mouse brain tissue samples, which they expertly analyzed using both LC-MS and GC-MS techniques. The results were invaluable, revealing key metabolites in the saliva and identifying biomarkers linked to brain function in the brain tissue."

Dr. Emily Carter, Senior Research Scientist

"The overall service from Creative Proteomics was outstanding. They made the entire process seamless and efficient, allowing us to focus on our research. We worked with leaf and root samples from various Arabidopsis genotypes for targeted metabolomics analysis. Their thorough profiling of primary and secondary metabolites gave us important insights into how the plants respond metabolically to environmental stress."

Dr. Laura Henderson, Plant Physiologist

"We had a pleasant collaboration with Creative Proteomics on mass spectrometry analysis of lipids. They conducted a detailed analysis of lipid species, providing us with important insights into lipid metabolism and its relationship with metabolic syndrome disease states."

Dr. Sarah Mitchell, Research Scientist

Online Inquiry

Please submit a detailed description of your project. We will provide you with a customized project plan to meet your research requests. You can also send emails directly to for inquiries.

Great Minds Choose Creative Proteomics