How can you identify lysozyme from FTIR?
This page summarizes the recurring FTIR evidence reported for lysozyme, including the most frequent peaks, supporting functional groups, and literature-backed interpretation patterns. It is a structured evidence page, not a claim of automatic single-spectrum certainty.
Backed by 10 cited sources
Quick answer
lysozyme is usually reported with a recurring pattern of peaks and functional-group evidence. The most useful approach is to cross-check at least two characteristic peaks before treating it as a match, then verify whether the full spectrum still fits the same material family.
Peak interpretation
Possible materials / groups
| Grup funcțional | Dovezi |
|---|---|
| Amide | 7 |
| Protein beta sheet | 5 |
| Methacrylate | 4 |
| Acetate | 4 |
| Carbonyl (C=O) | 3 |
| Protein alpha helix | 2 |
| Protein | 2 |
| Ketone | 2 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of lysozyme, repeated peak positions, and repeated functional-group associations. A strong material hypothesis should still be supported by multiple peaks that agree with each other, not by one headline band alone.
Real-world usage
This page is designed for polymer identification, incoming-material QC, unknown plastic analysis, recycled-content review, and literature-backed interpretation of reference spectra.
Common mistakes
- Calling a material match too early because one famous peak is present.
- Ignoring sample prep, fillers, oxidation, water, or additives that can change the apparent pattern.
- Using literature evidence without checking whether your own sampling mode and spectrum quality are comparable.
Verification advice
Use DSC, GC-MS, or TGA to validate the material hypothesis when the peak pattern is ambiguous or mixed.
Literature behind this page
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Frare 等 - 2006 - Identification of the core structure of lysozyme a DOI: 10.1016/j.jmb.2006.06.055 -
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Adsorption and Conformation Behavior of Lysozyme on a Gold Surface Determined by QCM-D, MP-SPR, and FTIR DOI: 10.3390/ijms22031322 -
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Unfolding and aggregation of lysozyme: A thermodynamic and kinetic study by FTIR spectroscopy DOI: 10.1016/j.bpc.2011.05.002 -
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Lysozyme
Impact of process stress on protein stability in highly-loaded solid protein/PEG formulations from small-scale melt extrusion DOI: 10.1016/j.ijpx.2022.100154 -
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The Role of Hydrogen Bonding in the Folding/Unfolding Process of Hydrated Lysozyme: A Review of Recent NMR and FTIR Results DOI: 10.3390/ijms19123825 -
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Interaction of Lysozyme with Poly(L-lysine)/Hyaluronic Acid Multilayers: An ATR-FTIR Study DOI: 10.3390/polym15041036 -
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FTIR Spectroscopic Study of the Secondary Structure of Globular Proteins in Aqueous Protic Ionic Liquids DOI: 10.3389/fchem.2019.00074 -
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Wu 等 - 2021 - The Effect of Luteolin and Luteoloside on the Seco DOI: 10.1155/2021/5523965 -
lysozyme
In-line Fourier-transform infrared spectroscopy as a versatile process analytical technology for preparative protein chromatography DOI: 10.1016/j.chroma.2018.03.005 -
lysozyme
Protic Ionic Liquid Cation Alkyl Chain Length Effect on Lysozyme Structure DOI: 10.3390/molecules27030984
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