Production of Polyhydroxyalkanoates by Azotobacter chroococcum H23 in Wastewater from Olive Oil Mills (Alpechin)
نویسنده
چکیده
We describe the production of large amounts of homoand copolymers of polyhydroxyalkanoates (PHAs) by Azotobacter chroococcum strain H23 when growing in culture media amended with alpechin. A. chroococcum grown on NH4+-medium supplemented with alpechin formed PHAs up to 50% of the cell dry weight after 24h. The results show that alpechin supports the growth of strain H23 and also that this waste could be utilized as a carbon source. Production of PHAs by using alpechin looks promising, since the use of inexpensive feed-stocks for PHAs is essential if bioplastics are to become competitive products.
منابع مشابه
Effects of culture conditions on the production of polyhydroxyalkanoates by Azotobacter chroococcum H23 in media containing a high concentration of alpechı́n (wastewater from olive oil mills) as primary carbon source
Large amounts of homopolymers containing -hydroxybutyrate (PHB) and copolymers containing -hydroxyvalerate (P[HB-co-HV]) are produced by Azotobacter chroococcum strain H23 when growing in culture media amended with alpechı́n (wastewater from olive oil mills) as the sole carbon source. Copolymer was formed when valerate (pentanoate) was added as a precursor to the alpechı́n medium, but it was not ...
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