Council of Scientific and Industrial Research

Arun Kumar Kukreja

Sushil Kumar

Atul Prakash Kahol

Suchitra Banerjee

Suman Preet Singh Khanuja

Mahendra Pandurang Darokar

Madan Mohan Gupta

Alok Kalra

Sunil Kumar Chattopadhyay

Anil Kumar Singh

Ram Prakash Sharma

Ravi Prakash Bansal

Anil Kumar Gupta

Ram Kishor Verma

Koneni Venkata Sashidhara

Sudeep Tandon

Mansoor Alam

Vinayak Tripathi

Guru Das Bagchi

Vijay Kumar Mehta

Praveen Chandra Verma

Manish Kulshrestha

Shipra Agarwal

Suman Preet Khanuja

Deeptanjali Sahoo

Guru Das Bagachi

The invention provides a simple method for isolation of calliterpenone (16&#x3b1;,17 dihydroxy-3-oxo phyllocladane), a phyllocladane diterpenoid with the plant growth regulating properties, from plant genus

Process for the isolation of calliterpenone

A bio-reactor for enhancing the biomass yield using a closed sterile vessel having a medium, said reactor comprising a central shaft, a support matrix oriented horizontally and dividing the vessel into an upper and a lower chamber, a means for stirring selected from turbine-2,4,6-impeller; marine blade impeller; helical blade impeller; mounted onto the central shaft and located at a predetermined distance from the support matrix so as to generate both radially and axially directed volumetric flow of the media; and at least two semi-circular spargers located both in the upper and lower compartments of the vessel at a predetermined distance from the support matrix.

Bio-reactor for enhancing the biomass yield of plant organs

This invention relates to a process for the production of a compound (&plus;) catechin penta acetate of formula I from tissue cultures which comprises : (a) inoculation of explants on different media compositions supplemented with combinations of auxins (1-5 mg/l) and cytokinins (0.1-1.0 mg/l); (b) incubation of the cultures under continuous light or dark conditions for 4-6 weeks for callus cultures followed by subculturing at 4-6 weeks intervals; (c) harvesting of the calli at different growth phases ranging from 12-36 months; (d) extraction of fresh pulverized calli with polar solvents at room temperature; (e) evaporating the solvent to give a residue; and partitioning of the residue between water and chlorinated solvents and evaporating the solvent to a semisolid mass; (f) subjecting the resultant mass to column chromatography over suitable adsorbent and (g) eluting with organic solvent/mixtures of organic solvents to get (&plus;) catechin penta acetate.

Process for the production of a compound (&plus;) catechin penta acetate useful as a precursor for the production of (&plus;) catechin

Growing community of inventors

Lucknow, India

Arun Kumar Kukreja