decolorization of aqueous solutions containing ionic dyes (reactive blue 19 and acid black 172) by a tfc commercial polyamide nanofilter (nf) in a spiral wound configuration was studied. the effect of operating parameters including feed concentration (60-180 mg/l), pressure (0.5-1.1 mpa) and ph (6-10) on dye removal efficiency was evaluated. the response surface method (rsm) was utilized for th...

Black garlic is a processed food product obtained by subjecting whole raw garlic to thermal processing that causes chemical reactions, such as the Maillard reaction, which change the composition of the garlic. In this paper, we report a nuclear magnetic resonance (NMR)-based comprehensive analysis of raw garlic and black garlic extracts to determine the compositional changes resulting from ther...

Piperine, a major alkaloid in black pepper is one of the most promising bioenhancers till date. Other methods used for its extraction suffer drawbacks such as poor extraction efficiency, tedious and expensive isolation methodology, piperine photodegradation, etc. Hence a simple, rapid and efficient method has been developed for the isolation of piperine from the fruits of Piper nigrum. The meth...

UNLABELLED Any suture material, absorbable or nonabsorbable, elicits a kind of inflammatory reaction within the tissue. Nonabsorbable black silk suture and absorbable polyglycolic acid suture were compared clinically and histologically on various parameters. MATERIALS AND METHODS This study consisted of 50 patients requiring minor surgical procedure, who were referred to the Department of Ora...

The presence of synthetic dyes in textile wastewater is a problematic issue for environmentalist. Nowadays, dye removal is practiced via different methods. Among all these methods, biodecolorization is an ideal technique. The present research apples vermicompost microflora to remove reactive black- C, pH = 7, and under anaerobic condition. At 36h, removal efficiencies of 94.79%, 94.06%, and 93....

It was found in the preceding experiment that a black pigment isolated from black-appearing gallstones resembled melanins but was definitely different from the latter in the chemical structure. As a continuation of the study, this report depicts the results of comparison of the pigment with black substances prepared in vitro from various bilirubin materials. When synthetic calcium bili rubinate...

An acid phosphatase has been isolated and purified from an extract of a germinating black gram seedling. The method was accomplished by gel filtration of a germinating black gram seedling crude extract on sephadex G-75 followed by ion exchange chromatography on DEAE cellulose. The acid phosphatase gave a single band on SDS-polyacrylamide slab gel electrophoresis. The molecular weight of the aci...