How can you identify keratin from FTIR?
This page summarizes the recurring FTIR evidence reported for keratin, 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 12 cited sources
Quick answer
keratin 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
| 官能团 | 证据 |
|---|---|
| Amide | 21 |
| Protein alpha helix | 8 |
| Hydroxyl (O-H) | 6 |
| N h | 5 |
| Carbonyl (C=O) | 4 |
| Methacrylate | 3 |
| Ester | 3 |
| Acetate | 3 |
Spectrum logic
The logic here is evidence aggregation: repeated literature mentions of keratin, 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
-
置信度 6.1
keratin
Ciurko 等 - 2019 - Enzymatic bioconversion of feather waste with kera DOI: 10.2478/pjct-2019-0030 -
置信度 6.1
keratin
Edwards 等 - 2011 - Infrared mapping resolves soft tissue preservation DOI: 10.1098/rspb.2011.0135 -
置信度 6.1
keratin
Assessment of Absorption of Glycated Nail Proteins in Patients with Diabetes Mellitus and Diabetic Retinopathy DOI: 10.3390/medicina56120658 -
置信度 6.1
keratin
Li 和 Yang - 2014 - Fabrication and Characterization of Electrospun Wo DOI: 10.1155/2014/163678 -
置信度 6.1
keratin
Vasconcelos 等 - 2008 - Biodegradable materials based on silk fibroin and DOI: 10.1021/bm7012789 -
置信度 4.9
Keratin
Du 等 - 2022 - Green and Highly Efficient Wool Keratin Extraction DOI: 10.3389/fmats.2021.789081 -
置信度 4.9
Keratin
Gaidau 等 - 2021 - Wool Keratin Hydrolysates for Bioactive Additives DOI: 10.3390/ma14164696 -
置信度 4.9
Keratin
Nowogrodski 等 - 2023 - In Situ Synthesis of Keratin and Melanin Chromopho DOI: 10.1021/acsomega.3c00189 -
置信度 4.9
Keratin
Cellulose, Chitosan and Keratin Composite Materials: Facile and Recyclable Synthesis, Conformation and Properties DOI: 10.1021/acssuschemeng.6b00084. -
置信度 4.9
Keratin
Yilma 等 - 2022 - Optimizing the Extraction of Keratin from Cattle H DOI: 10.1155/2022/4866467
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