Dissolution and characterization of biofunctional keratin particles extracted from chicken feathers

Sharma, Swati; Gupta, Arun; Saufi, Syed M.; Chua, Gek Kee; Poddar, Pradeep

doi:10.1088/1757-899x/191/1/012013

Cited by 23 publications

(17 citation statements)

References 18 publications

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“…The amide III band appeared between 1150 and 1200 cm −1 is caused by the in-phase stretching vibration of C–N. Similar spectra have also been reported in relevant literature [ 40 , 41 , 42 ]. The enlarged FTIR spectra at a frequency range of 700 and 1100 cm −1 , which are sensitive to disulfide bonds, is shown in Figure 4 b.…”

Section: Resultssupporting

confidence: 87%

Study on the Structure and Properties of Biofunctional Keratin from Rabbit Hair

et al. 2021

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Keratin is widely recognized as a high-quality renewable protein resource for biomedical applications. A large amount of rabbit hair waste is produced in textile industries, because it has high medullary layer content, but poor spinnability. Therefore, it is of great significance to extract keratin from waste rabbit hair for recycling. In this research, an ultrasonic-assisted reducing agent-based extraction method was developed and applied to extract keratin from rabbit hair. The results showed that the ultrasonic treatment had a certain destructive effect on the structure of the fiber, and when combined with reducing agent, it could effectively promote the dissolution of rabbit hair, and extract keratin with high molecular weight between 31 and 94 kDa. The structure and properties of keratin were studied. Compared to the rabbit hair, the cystine content of keratin was significantly reduced, and the secondary structure changed from α-helix to β-sheet. The keratin products show excellent biocompatibility and antioxidant capacity. In addition, large keratin particles can be formed by assembly with a balance between intermolecular hydrophobic attraction as the concentration of urea in keratin solution decreased during dialysis.

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Section: Resultssupporting

confidence: 87%

Study on the Structure and Properties of Biofunctional Keratin from Rabbit Hair

et al. 2021

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“…The transmission band (Amide II) in the range of 1580 cm -1 to 1480 cm -1 is for N-H bending and C-H stretching [31]. The weak band between 1300 cm -1 and 1220 cm -1 is associated with Amide III, which is derived from C-N stretching and N-H bending [32,33,34] and with some contribution from C=O bending and C-C stretching vibration [28,35,36]. The transmission band between 750 cm -1 and 600 cm -1 is related to N-H out-of-plane bending [29,37].…”

Section: Fourier Transform Infrared Spectroscopy (Ft-ir)mentioning

confidence: 99%

Study of Different Treatment Methods on Chicken Feather Biomass

Sharma¹,

Gupta

Saufi³

et al. 2017

IIUMEJ

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The chicken feathers (CFs) Â consist of up to 10 % of total chicken dry mass and they have many potential industrial applications. CFs contains protein fibers named as keratin, which is an insoluble protein. Primary sanitization phases are complex because of the presence of lots of blood born microbes, pathogens and parasites in raw biomass. The extraction process of keratins from the unprocessed feathers is also a challenging task. Prior to the extraction cleaning/sanitization of feathers is a very necessary step. Thus, the present work was conducted to optimize Â an efficient surfactantÂ for the cleaning process of the Â CFs by using ionic and non-ionic surfactants. The experiment was conducted by the washing of feathers with double distilled water (ddH2O), detergents, ether and lastly with boiling water. The washed feathers treated with surfactants and the effect of each surfactant was analyzed by a microbiological test which tells about the extent of Â the presence of different bacteria on the treated feathers. SEM, EDX, FTIR were used to study the morphology and composition of Â untreated and treated CFs. SEM showed there was no detectable fiber damage after treatment. Cetrimonium bromide (CTAB) (t3) was one of the best surfactant for the treatment of CFs among all the surfactant used. The present study described the best treatment method Â for the CFs.Â

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“…Various functional groups were observed to be changed in their transmittance, especially in the carboxylic acid (OH bond; 3200–2500 cm −1 ), aldehyde (∼2900 cm −1 ), carbonyl (1780–1650 cm −1 ), and amorphous (1250–1050 cm −1 ) regions. The transmittance peak for carboxylic acid, which was assigned to the OH bonding became less intense after the accelerated weathering testing for both PPCo5 and PPFe5. Such a drop off was observed as a result of breaking of hydrogen bonds between the OH group in the polymer matrix.…”

Section: Resultsmentioning

confidence: 99%

Enhanced degradation properties of polypropylene integrated with iron and cobalt stearates and its synthetic application

Subramaniam

Sharma

Gupta

et al. 2017

J of Applied Polymer Sci

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Synthetic plastic leads to environmental contamination, and a promising solution to this problem is to use prooxidants as fillers within them to speed up the photooxidation and thermooxidation processes. This makes plastics more susceptible to biodegradation. In this study, the degradation properties of the widely used polymer polypropylene (PP) were improved by integration with cobalt stearate (CoSt 2 ) and iron stearate (FeSt 3 ) as prooxidants with accelerating weathering degradation. The metal stearates were blended with PP in the concentration range 0.1-0.9% w/w. The properties of the blends were studied by mechanical properties testing, thermogravimetric analysis, differential scanning calorimetry, and water absorption measurement. We performed the degradation properties and thermooxidative studies by conducting an accelerated weathering test on PP-metal salt blends. Fourier transform infrared spectroscopy and scanning electron microscopy analysis of the samples before and after the accelerated weathering test were performed to study the extent of degradation in PP-based metal salt blends. The results indicate that the tensile strength was inversely proportional to the concentration of metal stearates, and the samples showed an increased degree in polymer crystallinity (PPFe5 > PPCo5), and this led to the degradation of PP in less time. CoSt 2 predominantly enhanced the degradation of PP in comparison to FeSt 3 . Food containers and pots were constructed with the tailored polymers of PP in the injection-molding machine. Thus, metal-stearate-integrated polymers have great industrial potential to generate value-added products.

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Dissolution and characterization of biofunctional keratin particles extracted from chicken feathers

Cited by 23 publications

References 18 publications

Study on the Structure and Properties of Biofunctional Keratin from Rabbit Hair

Study on the Structure and Properties of Biofunctional Keratin from Rabbit Hair

Study of Different Treatment Methods on Chicken Feather Biomass

Enhanced degradation properties of polypropylene integrated with iron and cobalt stearates and its synthetic application

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