Abhijit Ganguli

Learn More
The chromate-reducing ability of Pseudomonas aeruginosa A2Chr was compared in batch culture, with cells entrapped in a dialysis sac, and with cells immobilized in an agarose-alginate film in conjunction with a rotating biological contactor. In all three systems, the maximum Cr(VI) reduction occurred at 10 mg Cr(VI)/l. Whereas at 50 mg Cr(VI)/l(More)
Lactic acid bacteria from indigenous pickled vegetables and fermented beverages (fermented rice and Madhuca longifolia flowers) were isolated and investigated for their functional characteristics in vitro as potential new probiotic strains. Four isolates (all Lactobacillus spp.) selected on the basis of high tolerance to bile (0.2%) were identified by(More)
In India, the street food trade is a growing sector with its expansion linked with urbanisation and the need of urban populations for both employment and food. However, the microbiological status of popularly consumed raw street foods, general hygienic and vending practices are not known. We visited 75 vendors (50 having fixed stalls and 25 with mobile(More)
Lactobacillus casei LA-1 isolated from a nondairy fermented source was evaluated for its in vitro ability to reduce cholesterol. The bacterium tested positive for bile salt deconjugation in relation to cholesterol removal. Tested growth-associated physiological variables such as pH, temperature and inoculum size were all found to have significant effects on(More)
Cronobacter sakazakii is occasionally associated with food-borne illness seen in neonates and infants with weakened immune system. It can cause meningitis, local necrotizing enterocolitis and systemic bacteremia leading to infant mortality rates upto 33-80%. With the aim of investigating whether C. sakazakii is also a pathogen of the model organism C.(More)
The biocatalytic activity of periplasmic dehydrogenase of Pseudomonas putida G7 strain to catalyse limonin was enhanced when whole cells were permeabilized with EDTA (1 μM) lysozyme (100 μg/ml). The treated cells were entrapped in dialysis membranes to increase the stability. Permeabilized cells (1 g dry weight) entrapped in dialysis membrane could(More)
A well characterized naphthalene-degrading strain, Pseudomonas putida PpG7 was observed to utilize limonin, a highly-oxygenated triterpenoid compound as a sole source of carbon and energy. Limonin concentrations evidenced a 64% reduction over 48 h of growth in batch cultures. Attempts were made to acquire a plasmid-less derivative via various methods (viz.(More)
Conventionally, food healthiness has been associated with nutritional factors such as fat, fiber, salts and vitamins. In addition to this traditional healthiness, food may contain single components that may have a positive impact on our well-being. Food processing and biotechnology has enabled the food industry to make food with special characteristics.(More)
This study evaluated the potential of an extracellular, novel biopolymeric flocculant produced by a strain of Klebsiella terrigena for removal of Salmonella, a potent pathogen prevalent in poultry wastewater. The purified biopolymer was applied to poultry wastewater containing 3 log CFU cells of Salmonella. An optimized dosage of 2 mg L(-1) of the purified(More)
The growth and survival of Escherichia coli O157:H7 during manufacture and storage of Indian cheese or paneer was investigated. Pasteurized and raw milk that had been inoculated with 10(4) CFU/mL of E. coli O157:H7 cultures were used for manufacturing paneer samples which were vacuum-packaged and stored at 4 degrees C, 8 degrees C, and 28 degrees C.(More)