Novel protein-based bio-aerogels derived from canola seed meal

Fitzpatrick, Sarah E.; Deb‐Choudhury, Santanu; Ranford, Steve; Staiger, Mark P.

doi:10.1007/s10853-019-04330-w

Cited by 13 publications

(12 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chemical Characterization. The chemical characterization of WPI, WPI/tannin, HWPI, and HWPI/tannin aerogels was carried out using ATR-FTIR spectroscopy (Figures 2 and S1), 13 C CPMAS NMR spectroscopy (Figures 2 and S2), and TGA (Figure S3). Starting tannins Fintan C and Fintan QS-Sol were also characterized by the same methods.…”

Section: Resultsmentioning

confidence: 99%

“…The Bruker Avance III 500 spectrometer and an 11.75 T magnet with operational frequencies of 500.13 MHz for 1 H and 125.77 MHz for 13 C were used to acquire solid-state NMR spectra. All experiments were carried out on a 4 mm triple resonance probe, operating in double resonance mode, with magic angle spinning (MAS).…”

Section: Hydrophobization Of Wpi and Wpi/tanninmentioning

confidence: 99%

“…In the 13 C cross-polarization (CP) MAS experiments, the radio frequencies (RFs) used were of 55 and 28 kHz for exciting and decoupling protons, respectively. During the CP period, the RF field for protons was increased in 100 steps, while the RF field for 13 C remained constant. To decouple protons from carbon during acquisition, the Spinal-64 decoupling scheme was employed.…”

Section: Hydrophobization Of Wpi and Wpi/tanninmentioning

confidence: 99%

See 2 more Smart Citations

Whey Protein Isolate-Based Aerogels with Improved Hydration Properties for Food Packaging Applications

Effraimopoulou,

Kalmár,

Paul

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

In the present work, tannin-modified whey protein isolate (WPI/tannin) aerogels were synthesized, and their hydration properties were evaluated. The materials were prepared by introducing two different tannins (one hydrolyzable and one condensed) in the protein matrix via thermal-induced gelation of neutral or alkaline aqueous solutions (pH 7, 9, or 11) at 80 °C. WPI and WPI/tannin aerogels are nanostructured porous materials with high BET surface areas (216−353 m 2 g −1 ). Subsequently, WPI and WPI/tannin aerogels were hydrophobized via silanization (with bis(trimethylsilyl)amine) in the gas phase (HWPI and HWPI/tannin aerogels). As a result of silanization, BET surface areas were reduced to 87−242 m 2 g −1 . The hydration properties of all aerogels were studied by measuring the water uptake and water contact angles. Pristine WPI aerogels absorbed high amounts of water (up to 4794% w/w in 24 h), swelled, and eventually disintegrated. WPI/tannin aerogels prepared with the condensed tannin absorbed more water (219−559% w/w) than those prepared with the hydrolyzable tannin (81−88% w/w). In any case, the water uptake was significantly lower compared with that of pristine WPI aerogels. After silanization, all aerogels absorbed much smaller amounts of water (39−84% w/w). The reduced water uptake was in agreement with the water contact angles, which were in the ranges 35−55°for WPI aerogels, 40−60°for WPI/tannin aerogels, 80−86°for HWPI aerogels, and 100−116°for HWPI/tannin aerogels. These results clearly indicate that both the introduction of tannin in the protein matrix and the silanization of the solid network are necessary to obtain water-stable WPI-based aerogels. There is an immense need for replacing the existing plastic-based food packaging with biobased and biodegradable materials. In this context, our results address the major disadvantage of most biobased materials (i.e., poor stability in aqueous environments) and render these new aerogels good candidates for food packaging applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Hydrophobization Of Wpi and Wpi/tanninmentioning

confidence: 99%

Section: Hydrophobization Of Wpi and Wpi/tanninmentioning

confidence: 99%

See 1 more Smart Citation

Whey Protein Isolate-Based Aerogels with Improved Hydration Properties for Food Packaging Applications

Effraimopoulou,

Kalmár,

Paul

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…They exhibited superior gel‐forming properties and ease of availability of proteins make them the other alternative material of biobased aerogels. The proteins also can be obtained from the food processing industry (Athamneh et al, 2019; Fitzpatrick et al, 2020; Lu et al, 2014; Stergar & Maver, 2016).…”

Section: The Preparation Methods Of Aerogelsmentioning

confidence: 99%

“…The proteins also can be obtained from the food processing industry (Athamneh et al, 2019;Fitzpatrick et al, 2020;Lu et al, 2014;Stergar & Maver, 2016).…”

mentioning

confidence: 99%

The medical applications of biobased aerogels: ‘Natural aerogels for medical usage’

Okutucu

2021

Med Devices & Sens

View full text Add to dashboard Cite

Increasing demand for products made from sustainable and non-petroleum-based resources is a major driving force for the development of environmentally friendly green materials. With the development of sol-gel materials, the aerogels can become a good alternative material. Aerogels are sol-gel materials obtained by replacing the solvent in the meshes of a gel network with air. Aerogels are about 95% air so that they are very light in weight and have high porosity. The average densities of aerogels are 0.003-0.15 kg/m 3 , and the surface areas are 500-1000 m 2 /g (Smirnova & Gurikov, 2018). The aerogels can be distinguished from other porous biomaterials by structural properties

show abstract