Autor: Arya, R.K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Drying of binary thin film polymeric coatings: an experimental study
Autorzy:: Katariya, J.
Arya, R.K.
Powiązania:: https://bibliotekanauki.pl/articles/778937.pdf
Data publikacji:: 2012
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: Binary Coatings
thin films
drying
diffusion
Opis:: Four binary polymer -solvent systems, poly(styrene)-tetrahydrofuran, poly(styrene) - p-xylene, poly(methyl methacrylate) - ethylbenzene and poly(methyl methacrylate) - tetrahydrofuran, systems have been studied. It has been observed that thicker coatings will retain a higher amount of the residual solvent as compared to thinner coatings. In the case of poly(styrene)-tetrahydrofuran coating residual solvent remaining within the coatings were 9.09% and 4.74% for the coatings of the thicknesses of 967 micron and 559 micron, respectively. Similar trends were also observed in the case of poly(methyl methacrylate)-ethylbenzene, poly(methyl methacrylate)-tetrahydrofuran, and poly(styrene)-p-xylene systems.
Źródło:: Polish Journal of Chemical Technology; 2012, 14, 4; 83-87
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Enzyme-assisted turmeric oil extraction from turmeric rhizomes
Autorzy:: Chandra, Avinash
Rekhi, Heena
Dharmender
Gautam, A.K.
Arya, R.K.
Powiązania:: https://bibliotekanauki.pl/articles/2173425.pdf
Data publikacji:: 2022
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: turmeric oil
enzyme assisted
diastase
cellulase
pectinase
olejek z kurkumy
diastaza
celulaza
pektynaza
Opis:: An enzyme-assisted modified steam distillation process was adopted to extract turmeric oil from Curcuma longa L. rhizomes. The diastase, xylose, cellulase, pectinase, and lipase enzymes were used for the pre-treatment of fresh turmeric rhizome to obtain a higher yield by rapturing biological cells. The quantitative and qualitative analysis of turmeric oil was performed by GC–MS. The various influencing parameters for the extraction of turmeric oil such as an enzyme, incubation/pre-treatment time, distillation time have been studied in the present work. The obtained turmeric oil by enzymatic pretreatment process is richer in bioactive/medicinal components than in the other traditional methods. The maximum yield was obtained with cellulase enzyme, which is 25–27% higher than the yield obtained by the traditional hydro distillation process. The detailed qualitative and quantitative analyses are also presented. The present method can be considered energy-efficient, effective, economical, and eco-friendly.
Źródło:: Chemical and Process Engineering; 2022, 43, 2; 183--191
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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