Currently Published Papers in Green Chemistry

Sea Water- Assisted Pressurized Hot Water Extraction of Hemicelluloses from Sugarcane Bagasse

Protibha Nath Banerjee;DOI: 10.24214/IJGHC/GC/8/2/38691

The extraction of hemicellulose using pressurized hot water is an environmental-friendly process for the extraction of hemicelluloses from lignocellulosic biomass. However, this process requires high temperature, in the range of 180°C to 210°C, for the extraction of hemicelluloses. This energy-demanding condition leads to undesired sugar degradation which results in the formation of impurities such as acetic acid, HMF and levulinic acid due to degradation of acetyl moieties and side chain from hemicelluloses and consequently less branched hemicelluloses with varying lignin content are obtained. Hemicelluloses were isolated from sugarcane bagasse under mild reaction condition (140°C and 150°C) using inexpensive sea water as solvent. The more branched arabino-xylan hemicelluloses with lesser lignin content were obtained and were characterized by FT-IR, 1H-NMR, 13C NMR SEC-MALLS and pyrolysis GC-MS techniques.

Morpho-physiological and bioprospecting studies of some tree borne oil seeds occurring in the state of Maharashtra

D. N. Mokat, D. G. Madavi and Y. C. Suryawanshi ;DOI: 10.24214/IJGHC/GC/8/2 /37785.

Tree borne oil seeds (TBO’s) is one of the important group of Non Timber Forest Products (NTFP’s) having multifarious usage and industrial applications. Maharashtra state is a treasury for genetic and species diversity of TBO’s. In the present investigation morphophysiological studies of 9 TBO’s viz. Aphanamixis polystachya (Wall.) R. Parker, Holoptelea integrifolia Planch, Madhuca longifolia var. latifolia (Roxb.) A. Chev, Mesua ferrea L., Mimusops elengi L., Moringa oleifera Lam., Pongamia pinnata (L.) Pierre, Putranjiva roxburghii Wall, Ricinus communis L. collected from Western Ghats of Maharashtra were studied. Out of the studied TBO’s maximum oil content was recorded in M. ferrea (78.78%) followed by H. integrifolia (54.77%), and lowest in M. elengi (19.84%). Maximum 100 seed weight was observed in M. ferrea (336.8 gm) followed by M. longifolia (332.67 gm) and lowest in H. integrifolia (1.98gm). High fatty acids variation found in P. pinnata and M. oleifera. Oleic acid is found to be a dominant fatty acid in higher concentration in the seeds of studied TBO’s. This investigation also provides information about the oil quality and fatty acid composition. Its industrial applications and bioprospecting is to accessed very much for future use.

Synthesis, Spectral characterization and biological activity of Copper complexes with 6-Nitro-benzothiazole-2-yl-hydrazones derivatives">

S.S.Kolate , G.P.Waghulde, C.J. Patil, C.H Sarode and V.S. Waghulde;DOI: 10.24214/IJGHC/GC/8/2 /36776.

A series of Cu(II) complexes with 6-Nitro-benzothiazole-2-yl-hydrazone derivatives have been synthesized and characterized by elemental analyses, FT-IR, UV–Vis, mass spectra and magnetic moment. The results of elemental analyses data and Job’s continuous variation method spectrophotometrically indicated the stoichiometry of the complexes as 1:1[M:L] ratio. The FTIR spectral data suggest that the ligand behaves as tridentate moiety with NNO donor atoms around to the metal ion. The UV–Vis spectra and magnetic moment data suggested an tetrahedral geometry in all complexes whereas Cu(BHHM)(Cl)(H2O) complex show trigonal bipyramidal geometry. The synthesized complexes were screened for antimicrobial activities against two Gram-positive bacteria (Bacillus subtilis and Streptomyces griseus) two Gram-negative bacteria (Salmonella typhi and Pseudomonas aeruginosa) and two funguses (Candida tropicalis and Kluyveromyces marxianus). The antioxidant activities of these complexes were determined by hydrogen peroxide (H2O2) scavenging activity.">

Floristic composition and structure of the arborescent settlements of the types of town-planning of Bouaflé (Central-Western, Côte d’Ivoire)

KOUASSI Kanga Justin , KOUASSI Kouadio Henri , KOUASSI Roland Hervé, DOI: 10.24214/IJGHC/GC/8/2 /35466

Vis-a-vis the many environmental and social problems related to the urbanisation of natural space, the diagnosis and the environmental evaluation nowadays arouse more and more interest for a livable and sustainable environment. It is in this context that this study is which has as general objective to determine the floristic composition and the structural diversity of the woody species of the town of Bouaflé. With this intention, inventories of arborescent species were carried out inside the plots of 20 m x 20 m (400 m²) coupled to itinerant inventories inside the various types of installation were carried out. The investigations made it possible to identify seven (07) types of town-planning inside whose 99 arborescent species divided into 75 generea and 33 families were listed. Woody in cash richest types of town-planning are the social and educational establishments while the public garden with 3 species and sports equipment with 2 species represent the poorest mediums woody in cash. The cemeteries with a density of 236 trees/ha and a basal area estimated at 61.16 m²/ha represent the mediums floristically densest biotope.

Investigated of Chlorophyll for Analysis by Spectroscopic Technique

K.Dhivyabharathi, A.Kalpana, S.Ramya1, C.Kavitha,DOI: 10.24214/IJGHC/GC/8/2 /34153

The green plants are the reserves of chlorophyll that not only enable the plants to prepare their food but also benefit the humans and herbivores when ingested. It is an excellent antioxidant and has quite a lot of   bioactivity. Although many methods are known for estimation of chlorophyll content, the spectrophotometric method are, easy and apt method. Chlorophyll content would definitely vary from plant to plant depending on exposure to sunlight, preservation, heating etc. Therefore in the present work we have chosen to address the following issues for the chosen two plants using viz., Mentha piperitia   and Murraya koenigii. A monitor of the chlorophyll content by two methods both are identified with UV-Visible spectrophotometer           and analysized  of variation of chlorophyll over time (by Method 1) and also determined their compensation point. The effect of heat on chlorophyll content by exposing the sample to 5 mins (mild) to 20 mins (strong) and determining the chlorophyll content by Method 2.The evaluated of this above two process by using UV- Visible spectrum of sample between 300-700 nm.