12 Result(s)

Chapter

Microorganisms: An Eco-Friendly Tools for the Waste Management and Environmental Safety

Microorganisms are ubiquitous in nature having multifunction affecting human life. Microbes play the significant role in maintenance of many natural and man-made compounds in the environment. Several microorga...

Raja Husain, Nitin Vikram, Sonika Pandey… in Biotechnological Innovations for Environme… (2022)

Article

Acetylenic compounds. II. Preparation and properties of stearolic acid and the related substances

1. 9,10-Dibromostearic acid has been prepared in different grades of purity through urea-inclusion compounds from natural sources of fatty acids. This facilitated preparation of stearolic acid.

N. A. Khan in Journal of the American Oil Chemists Society (1956)

Article

Photochemical oxidation of fatty acid esters with and without chlorophyll

1. It has been confirmed that the principal products formed in the oxidation of methyl oleate by oxygen under a ...

N. A. Khan, W. E. Tolberg, D. H. Wheeler… in Journal of the American Oil Chemists Socie… (1954)

Article

The composition of coffee oil and its component fatty acids

A specimen of coffee oil has been examined with the objective of determining its composition in the light of possible uses of the oil which is recoverable as a byproduct in the soluble coffee industry. The oil...

N. A. Khan, J. B. Brown in Journal of the American Oil Chemists Society (1953)

Article

Acetylenic compounds. I. The dehydrohalogenation reactions by sodamide in liquid ammonia and preparation of some mono-acetylenic substances and their derivatives

The advantages of dehydrohalogenation by sodamide in liquid ammonia over the alcoholic potassium hydroxide method are noted. The sodamine reaction is found to be a mild and quite suitable reaction for the prep...

N. A. Khan in Journal of the American Oil Chemists Society (1953)

Article

Application of tracer techniques to studies on autoxidation reactions

The tracers containing deuterium, carbon isotopes, and heavy oxygen that may be applied to the studies on autoxidation reactions are described. The autoxidation of the deuterated compounds formed by replacing ...

N. A. Khan in Journal of the American Oil Chemists’ Society (1953)

Article

Structure of hydroperoxides obtained from autoxidized methyl linoleate

A sample of debromination methyl linoleate has been autoxidized to a peroxide value of 671 m.e./kg. at approximately 0°C. in the dark. An essentially pure concentrate of methyl octadecadienoate monohy-droperox...

O. S. Privett, W. O. Lundberg, N. A. Khan… in Journal of the American Oil Chemists Socie… (1953)

Article

Selective reduction of the unsaturated compounds

Oleic acid and methyl oleate, free of the offending dienoic and trienoic impurities, have been obtained by synthesis and isolation from natural sources. The synthetic method involved selective hydrogenation of...

N. A. Khan in Journal of the American Oil Chemists Society (1953)

Article

Edible vegetable oil resources of Pakistan and prospects of their development by modern methods

N. A. Khan in Journal of the American Oil Chemists’ Society (1951)

Article

Autoxidation of methyl oleate, methyl stearolate, and methyl 9,10-dieuteroöleate

A comparative study of the autoxidation of methyl oleate, methyl 9,10-dideuteroöleate, methyl stearolate, and stearolic acid has re-emphasized the complexity of the autoxidation phenomenon. The autoxidation of...

N. A. Khan, J. B. Brown, F. E. Deatherage in Journal of the American Oil Chemists’ Society (1951)

Article

The preparation of stearolic acid and methyl dideutero-oleate, and certain of their derivatives

1. Improved methods of synthesizing stearolic acid and 9,10-diketostearic acid in high yields are described. Dehydrobromination of dibromostearic acid by sodamide in ammonia is shown to be a very smooth and pr...

N. A. Khan, F. E. Deatherage, J. B. Brown in Journal of the American Oil Chemists Society (1951)