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Chidan Kumar C.S.,G Madegowda Institute Of Technology | Mythily R.,G Madegowda Institute Of Technology | Chandraju S.,University of Mysore
Asian Journal of Chemistry | Year: 2012

A rapid, sensitive extraction method was developed using the mixture methanol-dichloromethane-water (MDW) (0.3:4:1v/v/v) and MeOHH2O phase was assayed for sugar analysis. Photodiode-array detection (DAD) has been used to prove the extracted compound is UV inactive, high-performance liquid chromatography (HPLC) with evaporative light scattering detector (ELSD) coupled to electrospray ionization mass spectrometric (ESI-MS) detection in the positive ion mode gave MS and MSn fragmentation data, which were employed for their structural characterization. Various standard sugars were spotted using the solvent system n-propanol-ethyl acetate-water (13:37:7, v/v/v) in the cellulose layer for TLC analysis which indicated the presence of aldohexose glucose and ketohexose fructose. This is the first assay of the sugar profile of the black grape peels, which can be further developed for characterization and evaluation of their quality with regards to their sugar composition. Source

Kumar C.S.C.,G Madegowda Institute Of Technology | Chandraju S.,University of Mysore | Gowda N.M.M.,Western Illinois University
Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry | Year: 2011

Astock solution of manganese(III) acetate in aqueous acetic acid has been prepared using a standard electrochemical method. The nature of the oxidizing species present in manganese(III) solutions has been characterized by spectrophotometric and redox potential measurements. Kinetics of oxidation of DL-alanine (Ala) by manganese( III) in aqueous acetic acid solution at 313Khave been investigated. The experimental rate law is: rate = k'[Mn(III)] 0.5[Ala] 0.9 [OAc-]y 0.5/[H+] 0.5, where each species shows a fractional order. Effects of varying ionic strength, solvent composition, and the added ions such as fluoride, chloride, and perchlorate have been investigated. Activation parameters have been evaluated using Arrhenius andEyring plots.Amechanism consistentwith the observed kinetic data has been proposed and discussed. A suitable rate law has been derived based on the mechanism. Copyright © Taylor & Francis Group, LLC. Source

Chandraju S.,University of Mysore | Beirami A.,University of Mysore | Chidan Kumar C.S.,G Madegowda Institute Of Technology
Asian Journal of Pharmaceutical and Clinical Research | Year: 2012

Effects of Sodium and Potassium in diet to determine baby gender in hamster have been investigated. Diabetes mellitus is a chronic, widely spread disease in living species. Sex determination has scientific basis for prevention of genetic diseases in addition to social backgrounds.36 hamsters (obtained from veterinary college Bangalore), were divided in to three groups in the ratio male to female 1:5. The first group was made diabetic with Na and K, the second group was non diabetic with Na and K, group third was control unit (Non-diabetic without Na and K). It was found that the delivered offspring's male to female ratio were 4:1, 3.6:1 and 1.02:1 for the first, second and third groups respectively. Also, it was found that non diabetic hamster fed with normal food yields maximum numbers of offspring (83), while diabetic hamster fed with Na and K yields and diabetic hamster with Na and K yield lowest numbers of offspring (50). Source

Kaur M.,University of Mysore | Jasinski J.P.,Keene State College | Keeley A.C.,Keene State College | Yathirajan H.S.,University of Mysore | Siddaraju B.P.,G Madegowda Institute Of Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the title salt, C18H24NO+· C6H7O7 -, the dihedral angle between the benzene rings in the cation is 74.2 (5)°. In the crystal, anion-anion O - H⋯O hydrogen bonds and weak O - H⋯O interactions form infinite chains along [100]. Between these chains, cation-anion N - H - O hydrogen bonds are observed, forming an alternate pattern of cation and anion layers and leading to a two-dimensional network parallel to (100). Source

Kaur M.,University of Mysore | Butcher R.J.,Howard University | Jasinski J.P.,Keene State College | Yathirajan H.S.,University of Mysore | Siddaraju B.P.,G Madegowda Institute Of Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

Three independent molecules comprise the asymmetric unit of the title compound, C10H19N5O2, (systematic name: 4-amino-N-tert-butyl-3-isopropyl-5-oxo-4,5-dihydro-1H-1,2,4-triazole-1- carboxamide). In all three molecules, the triazole ring and the carboxamide group are almost coplanar [within 4.0-5.9 (9)°], particularly because of the formation of an intramolecular N-H⋯O hydrogen bond. On other hand, the orientation of the isopropyl group varies significantly from molecule to molecule. The crystal packing is dominated by N-H⋯O and N-H⋯N hydrogen bonds, which connect the molecules into infinite chains along [010]. Source

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