Fabrication of Electrospun Persian Gum/Poly (Vinyl Alcohol) and Whey Protein Isolate/Poly (Vinyl Alcohol) Nanofibers Incorporated with Oliveria decumbens Vent. Essential Oil

2019 ◽  
Vol 9 (3) ◽  
pp. 371-380
Author(s):  
Malihe Keramat ◽  
Sara Esteghlal ◽  
Javad Safari ◽  
Mohammad-Taghi Golmakani ◽  
Mohammadreza Khalesi
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Essential Oil ◽  
Fourier Transform Infrared Spectroscopy ◽  
Whey Protein ◽  
Vinyl Alcohol ◽  
Fourier Transform Infrared ◽  
Whey Protein Isolate ◽  
Protein Isolate ◽  
Poly Vinyl Alcohol

Introduction: In this study, Persian gum/poly (vinyl alcohol) nanofiber and whey protein isolate/ poly (vinyl alcohol) nanofiber were fabricated using electrospinning system. Materials & Methods: The effects of supplementation of Oliveria decumbens Vent. essential oil on the physicochemical and biological characteristics of the nanofibers were investigated by applying the techniques including antioxidant activity measurement, scanning electron microscopy, viscosity and conductivity tests, and fourier-transform infrared spectroscopy. Results: The results showed that the incorporation of 1% Oliveria decumbens Vent. essential oil to the polymer dispersions causes the formation of thin nanofibers with the least beads. Both types of nanofibers containing essential oil exhibited significant radical scavenging activities up to 76.82±0.36% and 61.09±0.13% for whey protein isolate/poly (vinyl alcohol) nanofiber and Persian gum/poly (vinyl alcohol) nanofiber, respectively. Conclusion: The results of fourier-transform infrared spectroscopy proposed the structurally incorporation of the essential oil into nanofibers to be considered as novel coating film for active packaging technology.

Study on Thermooxidative Degradation of Poly(Vinyl Alcohol)/Silica Nanocomposite Prepared with SAM Technique

2005 ◽  
Vol 23 ◽  
pp. 375-378 ◽  
Author(s):  
Zheng Peng ◽  
Ling Xue Kong ◽  
Si Dong Li
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Self Assembly ◽  
Vinyl Alcohol ◽  
Fourier Transform Infrared ◽  
Degradation Process ◽  
Poly Vinyl Alcohol ◽  
Thermooxidative Degradation ◽  
Thermooxidative Stability

The thermooxidative degradation of poly (vinyl alcohol)/silica (PVA/SiO2) nanocomposite prepared with self-assembly monolayer (SAM) technique is investigated by using a thermogravimetry (TG) and Fourier transform infrared spectroscopy coupled thermogravimetry (FTIR/TG). The results show that although the thermooxidative degradation process of prepared nanocomposite is similar to that of the pure PVA, its thermooxidative stability has been greatly improved.

scholarly journals Fourier Transform Infrared Spectroscopy Analysis Of Oil Of Menthaarvensis Grown At Sites Varying With Vehicular Traffic Loads In Lucknow City, India

2013 ◽  
Vol 2 (1) ◽  
pp. 16-25 ◽  
Author(s):  
Nidhi Prakash ◽  
Mohhamad Yumus
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Essential Oil ◽  
Fourier Transform Infrared Spectroscopy ◽  
Heavy Traffic ◽  
Economic Value ◽  
Fourier Transform Infrared ◽  
Chemical Components ◽  
Vehicular Emissions ◽  
Traffic Loads

The demand of the essential oil of mint species; widely used in food, pharmaceutical and cosmetic industries, is growing throughout the world. Owing its significance, it was felt important to know the changes in chemical characteristics of the oil, if any, for economic value when the crop of Mentha is grown near highways, railway tracks or areas having heavy traffic loads. To assess the effect of vehicular emissions on menthol (mint oil), transfer experiment study was conducted. Firstly, within the municipal premises of Lucknow city, five sites (Road stretches) were identified based on survey of Lucknow city and the available data on air pollution loads. Sites were selected which were differing from each other significantly in terms of the number of vehicles (source of pollution) plying on them but were quite similar to each other in other eco-physiological factors. On the select sites equal number of potted Menthaarvensis plants of the same age, height and vigour of saccham variety obtained from CSIR-CIMAP was kept to get exposed to auto-exhaust pollutants for one year. Irrigation regime at all sites was kept uniform to avoid the influence of any other variable other than vehicular emissions. An analysis of hydro-distillated essential oil of Menthaarvensis variety Sascham under FTIR (Fourier Transform Infrared Spectroscopy) revealed some qualitative changes in the organic-compounds of the oil from plants grown at sites of Lucknow city loaded with high vehicular load (auto-exhaust pollutants) over plants kept under relatively pollution free site. Several indicator bands that are pertained to functional groups represent chemical components or metabolic products. The quantity of the peppermint oil extracted from plants of site having highest traffic loads, in turn maximum ambient pollutants (NO2, SO2, O3, SPM & RSPM) was also found less as compared to plants grown in less polluted site. International Journal of Environment, Volume-2, Issue-1, Sep-Nov 2013, Pages 16-25 DOI: http://dx.doi.org/10.3126/ije.v2i1.9204

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