The obtained mutant strain was genetically stable, grew fast, had low demandforoxygen, and a very high lipase activity.
结果发现，该菌株遗传稳定，生长快，酯酶活力高，对氧的需求低。
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The team said it did not know exactly why probiotics may be harmful but speculated the supplements may somehow boost demandforoxygen and worsen already reduced blood flow.
According to the study agriculture is responsible for 43.7% of the nation's chemical oxygendemand (the main measure of organic compounds in water) 67% of phosphorus and 57% of nitrogen discharges.