“…Among inorganic nitrogen sources used, ammonium sulphate (0.4%, w/v) was the optimal inorganic nitrogen source, which increased lipase activity (Fig 6B) because active site of enzyme might be influenced by ammonium sulphate or the ammonium ions [35]. The same result was reported by Tan et al [36].…”
“…Among inorganic nitrogen sources used, ammonium sulphate (0.4%, w/v) was the optimal inorganic nitrogen source, which increased lipase activity (Fig 6B) because active site of enzyme might be influenced by ammonium sulphate or the ammonium ions [35]. The same result was reported by Tan et al [36].…”
“…With regard to aeration conditions, lipase produced using an aeration rate of 0.5 vvm had an activity higher than that of lipase produced using an aeration rate of 1 vvm. These results suggest that the DO saturation level is important since excess air did not stimulate lipase production 23 .…”
Section: Selection Of Scale-up Strategymentioning
confidence: 84%
“…Tan et al 23 showed that a high agitation speed 400 rpm increased the DO in the medium and enhancedthe lipase production of the mutant strain Candida sp. 99-125; the maximum activity of the produced lipase was higher than that seen with a low agitation speed of 200 rpm.…”
“…WIG and Candida sp. lipase (EC3.1.1.3) (specific activity 28 U/mg) were made in our laboratory as described by Tan et al 17,18) Sepharose was purchased from Pharmcia (Uppsala, Sweden). BSA (!…”
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