THE ROLE OF HALOPHILIC BACTERIA IN SALT CRYSTALLISATION
In India , common salt is produced from sea water along east and west coasts, from subsoil brine at Rann of Kutch , Gujarat, Tamil Nadu and from saltlakes in Rajastan , by solar evaporation. However, it is also manufactured from inland sources of brine whose salinity is higher than the salinity of the sea water. The hydro biological activity in a solar salt operation greatly determines salt production quality and quantity. It is generally considered that Artemia, a major Faunal element of hyper saline ecosystems, a continuous filter feeder ingest all organic particles and act as vacuum cleaners. They are converting any particular matter in to biomass, cyst or foecal pellets which do not interfere with the salt production. But the brine shrimp excrete their waste in membrane bound foecal pellets which sink to the bottom and form a good organic substrate for Halobacterium. They absorb heat and faster the salt crystallization. Thus in the solar salt production, active organic contribution from biological components are required for better quality.Hence in the present study, investigated the halophilic bacteria distribution in salt crystallizers and its role for the formation of large crystals of salts .The study area has been selected by taking bore well water from Gandhidham, near Arabian sea, Gujarat, India. The salinity is found to be 140 ppt. The samples were collected and halobacterium were isolated. It was further sub cultured and growth of holophylic bacteria was monitored under prepared culture medium. The samples indicated the isolates contain several species of saltern bacteria. The rate of crystallization was found to be faster under halophilic bacteria and also clear, large size crystals were found. Taking the advantages the role of halobacteria on quality salt production, there is an ample scope for mass management of extensive area of salt work for biological management in a balanced way.
Halobacterium sp. quality salt bore well water Arabian sea
ABDUL A.RAHAMAN R.JEYALAKSHMI
School of Civil Engineering, SRM University, Kattankulathur, 603 203, India Department of Chemistry, SRM University, Kattankulathur, 603 203, India
国际会议
9th International Symposium on Salt(第九届世界盐业大会)
北京
英文
736-739
2009-09-05（万方平台首次上网日期，不代表论文的发表时间）