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1

Evaluation of antioxidant potential of vegetables waste

100%
Munir A., Sultana B., Bashir A., Ghaffar A., Munir B., Shar G. A., Nazir A., Iqbal M.
Polish Journal of Environmental Studies
|
2018
|
tom 27
|
nr 2
Vegetables are considered a rich source of such antioxidants as phenolics, carotenoids, flavonoids, and vitamins, which are frequently added to stop the process of oxidation in processed food and biological systems. This work aimed to investigate the antioxidant potential of vegetable waste (garlic, onion, and cauliflower). The extracts of vegetable waste were prepared by two solvents – 80% methanol and 80% ethanol – and were appraised for their antioxidant potential. Total phenolic contents (TPC) of these vegetable waste extracts were in the range of 2.23-16.12 mg Gallic acid equivalents/gram (GAE/g) of dry weight (DW), while total flavonoids were in the order of 0.24-2.13 mg catechin equivalent/gram (CE/g) of DW. Maximum inhibition capacity and maximum scavenging activity was displayed by ethanolic extract of onion waste. The onion waste extract compared to others also showed high reducing power (1.27) as it had higher intensity of color. This analysis declares onion waste with maximum value of TPC, total flavonoids content (TFC), 2, 2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH), and the percentage of age inhibition.
2

Statistical modeling for the extraction of dye from natural source and industrial applications

100%
Jabeen S., Ali S., Nadeem M., Arif K., Quereshi N., Shar G. A., Soomro G. A., Iqbal M., Nazir A., Siddiqua U. H.
Polish Journal of Environmental Studies
|
2019
|
tom 28
|
nr 4
This study is intended to scrutinize the consequence of extraction conditions of Lawsonia Inermis (henna) leaves on the color strength values of dyed fabric. Extraction pH, M:L ratio, and time were optimized using central composite design (CCD) under response surface methodology (RSM). We investigated how the maximum colour strength values were obtained at pH 6.64 in about 78 minutes extraction with an M:L ratio of 1:44. ANOVA results showed that all the extraction parameters significantly affect the colour strength values of dyed samples. 99% variation in the response was indicated in the 2nd-order regression equation for K/S. The fastness properties with respect to light, washing, and rubbing were quite satisfactory of dyed samples under optimized extraction conditions.
3

Environmental applications and bio-profiling of Tribulus terrestris: an ecofriendly approach

81%
Arshad M., Rahman A., Qayyum A., Hussain K., Khan M. A., Hussain T., Abbas M., Shar G. A., Zahoor M. K., Nazir A., Iqbal M.
Polish Journal of Environmental Studies
|
2020
|
tom 29
|
nr 4
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