Improvement of preservation method for ammonia-oxidizing bacteria by freeze-drying
نویسندگان
چکیده
منابع مشابه
Preservation of Lactic Acid Bacteria by Freeze-Drying
Lactic acid bacteria are widely used in the manufacture of fermented milk products, such as cheeses, sour cream butter, yoghurt and fermented milk beverages. These microorganisms may also be applied to the production of fermented meat products and silage. We may easily cultivate lactic acid bacteria in milk. However, it is a laborious work to preserve the organisms in liquid state because viabi...
متن کاملPreservation of enteroviruses by freeze-drying.
A method was developed for freeze-dry stabilization of poliovirus type 3. An ultrafiltration procedure was used to remove salts from infected tissue culture fluid, and the virus was freeze-dried after suspension in an alkaline organic buffer. This method was further tested with other picornaviruses including poliovirus types 1 and 2, coxsackieviruses A9, A20, B2, and B5, echovirus 11, and the e...
متن کاملFreeze-drying as an alternative method of human sclera preservation.
PURPOSE To compare the effect of preserving sclera samples in either 95% ethanol or freeze-dried. METHODS Ninety-six samples of human sclera were studied. Half of them were freeze-dried and half preserved in 95% ethanol. Preservation periods of 18, 45, 90 or 174 days were studied. Automated immunostaining was carried out in the Ventana BenchMarkR LT platform using collagen 1 and fibronectin a...
متن کاملSuccessful Long-Term Preservation of Rat Sperm by Freeze-Drying
BACKGROUND Freeze-drying sperm has been developed as a new preservation method where liquid nitrogen is no longer necessary. An advantage of freeze-drying sperm is that it can be stored at 4 °C and transported at room temperature. Although the successful freeze-drying of sperm has been reported in a number of animals, the possibility of long-term preservation using this method has not yet been ...
متن کاملBiogeography of anaerobic ammonia-oxidizing (anammox) bacteria
Anaerobic ammonia-oxidizing (anammox) bacteria are able to oxidize ammonia and reduce nitrite to produce N2 gas. After being discovered in a wastewater treatment plant (WWTP), anammox bacteria were subsequently characterized in natural environments, including marine, estuary, freshwater, and terrestrial habitats. Although anammox bacteria play an important role in removing fixed N from both eng...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Soil Science and Plant Nutrition
سال: 2004
ISSN: 0038-0768,1747-0765
DOI: 10.1080/00380768.2004.10408535