High rate composting of herbal pharmaceutical industry solid waste

2012 ◽  
Vol 65 (10) ◽  
pp. 1817-1825 ◽  
Author(s):  
M. Ali ◽  
K. S. Duba ◽  
A. S. Kalamdhad ◽  
A. Bhatia ◽  
A. Khursheed ◽  
...  
Keyword(s):  
Weight Basis ◽  
High Rate ◽  
Industry Waste ◽  
Wet Weight ◽  
Ft Ir ◽  
Rotary Drum ◽  
Aromatic Region ◽  
Vegetable Market Waste ◽  
Ir Study ◽  
Rotary Drum Composter

High rate composting studies of hard to degrade herbal wastes were conducted in a 3.5 m3 capacity rotary drum composter. Studies were spread out in four trials: In trial 1 and 2, one and two turns per day rotation was observed, respectively, by mixing of herbal industry waste with cattle (buffalo) manure at a ratio of 3:1 on wet weight basis. In trial 3 inocula was added in raw waste to enhance the degradation and in trial 4 composting of a mixture of vegetable market waste and herbal waste was conducted at one turn per day. Results demonstrated that the operation of the rotary drum at one turn a day (trial 1) could provide the most conducive composting conditions and co-composting (trial 4) gave better quality compost in terms of temperature, moisture, nitrogen, and Solvita maturity index. In addition a FT-IR study also revealed that trial 1 and trial 4 gave quality compost in terms of stability and maturity due to the presence of more intense peaks in the aromatic region and less intense peaks were found in the aliphatic region compared with trial 2 and trial 3.

On the Chemical Form of Mercury in Edible Fish and Marine Invertebrate Tissue

1992 ◽  
Vol 49 (5) ◽  
pp. 1010-1017 ◽  
Author(s):  
Nicolas S. Bloom
Keyword(s):  
Total Mercury ◽  
Marine Invertebrates ◽  
Marine Invertebrate ◽  
Chemical Form ◽  
Weight Basis ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Saltwater Fish ◽  
Relative Standard ◽  
Wet Weight

Total mercury, monomethylmercury (CH3Hg), and dimethylmercury ((CH3)2Hg) in edible muscle were examined in 229 samples, representing seven freshwater and eight saltwater fish species and several species of marine invertebrates using ultraclean techniques. Total mercury was determined by hot HNO3/H2SO4/BrClldigestion, SnCl2 reduction, purging onto gold, and analysis by cold vapor atomic fluorescence spectrometry (CVAFS). Methylmercury was determined by KOH/methanol digestion using aqueous phase ethylation, cryogenic gas chromatography, and CVAFS detection. Total mercury and CH3Hg concentrations varied from 0.011 to 2.78 μg∙g−1 (wet weight basis, as Hg) for all samples, while no sample contained detectable (CH3)2Hg (<0.001 μg∙g−1 as Hg). The observed proportion of total mercury (as CH3Hg) ranged from 69 to 132%, with a relative standard deviation for quintuplicate analysis of about 10%; nearly all of this variability can be explained by the analytical variability of total mercury and CH3Hg. Poorly homogenized samples showed greater variability, primarily because total mercury and CH3Hg were measured on separate aliquots, which vary in mercury concentration, not speciation. I conclude that for all species studied, virtually ail (>95%) of the mercury present is as CH3Hg and that past reports of substantially lower CH3Hg fractions may have been biased by analytical and homogeneity variability.

scholarly journals THE MOLECULAR WEIGHT OF RHODOPSIN AND THE NATURE OF THE RHODOPSIN-DIGITONIN COMPLEX

1954 ◽  
Vol 37 (3) ◽  
pp. 381-399 ◽  
Author(s):  
Ruth Hubbard
Keyword(s):  
Molecular Weight ◽  
Single Molecule ◽  
Extinction Coefficient ◽  
Dry Weight ◽  
Weight Basis ◽  
Sedimentation Behavior ◽  
A Value ◽  
Wet Weight ◽  
Single Boundary ◽  
Stoichiometric Complex

The sedimentation behavior of aqueous solutions of digitonin and of cattle rhodopsin in digitonin has been examined in the ultracentrifuge. In confirmation of earlier work, digitonin was found to sediment as a micelle (D-1) with an s20 of about 6.35 Svedberg units, and containing at least 60 molecules. The rhodopsin solutions sediment as a stoichiometric complex of rhodopsin with digitonin (RD-1) with an s20 of about 9.77 Svedberg units. The s20 of the RD-1 micelle is constant between pH 6.3 and 9.6, and in the presence of excess digitonin. RD-1 travels as a single boundary also in the electrophoresis apparatus at pH 8.5, and on filter paper at pH 8.0. The molecular weight of the RD-1 micelle lies between 260,000 and 290,000. Of this, only about 40,000 gm. are due to rhodopsin; the rest is digitonin (180 to 200 moles). Comparison of the relative concentrations of RD-1 and retinene in solutions of rhodopsin-digitonin shows that RD-1 contains only one retinene equivalent. It can therefore contain only one molecule of rhodopsin with a molecular weight of about 40,000. Cattle rhodopsin therefore contains only one chromophore consisting of a single molecule of retinene. It is likely that frog rhodopsin has a similar molecular weight and also contains only one chromophore per molecule. The molar extinction coefficient of rhodopsin is therefore identical with the extinction coefficient per mole of retinene (40,600 cm.2 per mole) and the E(1 per cent, 1 cm., 500 mµ) has a value of about 10. Rhodopsin constitutes about 14 per cent of the dry weight, and 3.7 per cent of the wet weight of cattle outer limbs. This corresponds to about 4.2 x 106 molecules of rhodopsin per outer limb. The rhodopsin content of frog outer limbs is considerably higher: about 35 per cent of the dry weight, and 10 per cent of the wet weight, corresponding to about 2.1 x 109 molecules per outer limb. Thus the frog outer limb contains about five hundred times as much rhodopsin as the cattle outer limb. But the relative volumes of these structures are such that the ratio of concentrations is only about 2.5 to 1 on a weight basis. Rhodopsin accounts for at least one-fifth of the total protein of the cattle outer limb; for the frog, this value must be higher. The extinction (K500) along its axis is about 0.037 cm.2 for the cattle outer limb, and about 0.50 cm.2 for the frog outer limb.

An FT-IR Study on Packing Defects in Mixed β-Aggregates of Poly(l-glutamic acid) and Poly(d-glutamic acid): A High-Pressure Rescue from a Kinetic Trap

2012 ◽  
Vol 116 (17) ◽  
pp. 5172-5178 ◽  
Author(s):  
Yudai Yamaoki ◽  
Hiroshi Imamura ◽  
Aleksandra Fulara ◽  
Sławomir Wójcik ◽  
Łukasz Bożycki ◽  
...  
Keyword(s):  
High Pressure ◽  
Glutamic Acid ◽  
Kinetic Trap ◽  
Packing Defects ◽  
Ft Ir ◽  
Ir Study

AN ENHANCEMENT OF SOLUBILITY OF PIOGLITAZONE HYDROCHLORIDE USING LIQUISOLID TECHNIQUE

INDIAN DRUGS ◽  
2013 ◽  
Vol 50 (06) ◽  
pp. 36-39
Author(s):  
S Deshmane ◽  
◽  
K Gandhi ◽  
S. Nagpure ◽  
A. Sawant ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Drug Release ◽  
Dissolution Rate ◽  
In Vivo Study ◽  
Dimethyl Acetamide ◽  
Volatile Liquid ◽  
Ft Ir ◽  
Ir Study

The new mathematical model was developed by studying angle of slide using N, N-dimethyl acetamide, non-volatile liquid vehicle and prepared liquisolid tablets, in which the different concentrations of non-volatile liquid adsorbed over carrier and coating material separately. Both DSC and FT-IR study showed better compatibility and stability. The optimized formulation showed higher drug release during in-vitro and in-vivo study against conventional and marketed preparation. The present work concludes that N, N-dimethyl acetamide enhanced the solubility of pioglitazone HCl with higher dissolution rate through liquisolid technique.

FT-IR study on solvent effects in building blocks of bioactive compounds. V

2006 ◽  
Vol 790 (1-3) ◽  
pp. 89-93
Author(s):  
C. Conti ◽  
R. Galeazzi ◽  
E. Giorgini ◽  
G. Tosi
Keyword(s):  
Bioactive Compounds ◽  
Solvent Effects ◽  
Building Blocks ◽  
Ft Ir ◽  
Ir Study

An FT-IR study of the isomerization of 1-butoxy radicals under atmospheric conditions

2006 ◽  
Vol 177 (2-3) ◽  
pp. 109-115 ◽  
Author(s):  
Paola Cassanelli ◽  
Richard A. Cox ◽  
John J. Orlando ◽  
Geoffrey S. Tyndall
Keyword(s):  
Atmospheric Conditions ◽  
Ft Ir ◽  
Ir Study

Dogfish Gelatin

1962 ◽  
Vol 19 (2) ◽  
pp. 321-326 ◽  
Author(s):  
Shirley E. Geiger ◽  
Eve Roberts ◽  
N. Tomlinson
Keyword(s):  
Total Nitrogen ◽  
Weight Basis ◽  
Melting Points ◽  
Wet Weight

Gelatin has been prepared from the skin and skeleton (separately) of the dogfish, Squalus suckleyi. The gelling and melting points of a 10% solution were 15 and 22 °C respectively, for gelatin from skin, and 14 and 23 °C for that from skeleton. The skin gelatin contained 16.3%, total nitrogen, 6.4% hydroxyproline, and 0.28% tyrosine. The corresponding values for skeleton gelatin were 15.7, 8.8, and 0.29%. Yields of gelatin were low, being 7% from skin and 2% from skeleton on a wet-weight basis.

Metal ion interactions with sugars. The crystal structure and FT-IR study of the NdCl3–ribose complex

2003 ◽  
Vol 338 (24) ◽  
pp. 2913-2919 ◽  
Author(s):  
Yan Lu ◽  
Guocai Deng ◽  
Fangming Miao ◽  
Zhengming Li
Keyword(s):  
Crystal Structure ◽  
Metal Ion ◽  
Ion Interactions ◽  
Ft Ir ◽  
Ir Study ◽  
Metal Ion Interactions

Isolation and assay of dipalmityl lecithin in lung extracts

1964 ◽  
Vol 207 (2) ◽  
pp. 402-406 ◽  
Author(s):  
Elwyn S. Brown
Keyword(s):  
Phosphatidyl Choline ◽  
Trichloroacetic Acid ◽  
Cadmium Chloride ◽  
Active Material ◽  
Weight Basis ◽  
Alcohol Extract ◽  
Wet Weight ◽  
Surface Active ◽  
Surface Active Material ◽  
Surface Balance

Lung extracts were obtained by either mincing the lungs in saline or by washing the lung with saline through the trachea. The surface tensions of the extracts on compression to 10% of the original area in a surface balance decreased to 7.5 ± 2.1 dynes/cm for rabbits, 10.0 ± 1.8 dynes/cm for dogs, and 6.8 ± 3.8 dynes/cm for man. The surface-active material in the extracts was completely precipitated with trichloroacetic acid. Ethyl or methyl alcohol extracted the activity from the precipitate. By concentrating and chilling the alcohol extract, a very surface-active white precipitate was obtained which was identified as dipalmityl phosphatidyl choline by melting point, chemical analysis, and paper chromatography. Cadmium chloride also precipitated a surface-active complex from the alcohol extract which was identified chemically as dipalmityl phosphatidyl choline. The quantity of hydrolecithin extracted from the lungs was 0.09–0.18% on a wet weight basis. No evidence of the presence of sphingomyelin or other surface-active phospholipid was obtained.

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