Hydrolysis of p-nitrophenyl palmitate in n-heptane by the Pseudomonas cepacia lipase: A simple test for the determination of lipase activity in organic media (Record no. 47154)

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control field 20250625153913.0
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Transcribing agency CICY
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Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-12952
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245 10 - TITLE STATEMENT
Title Hydrolysis of p-nitrophenyl palmitate in n-heptane by the Pseudomonas cepacia lipase: A simple test for the determination of lipase activity in organic media
490 0# - SERIES STATEMENT
Volume/sequential designation Enzyme and Microbial Technology, 18(6), p.417-422, 1996
520 3# - SUMMARY, ETC.
Summary, etc. The rate of p-nitrophenyl pate (pNPP)hydrolysis in n-heptane by a lipuse preparation fromP seudomonas cepacia was studied. In organic media, the reaction rate could be easily measured by spectrophotometry after extraction of the liberated p-nitrophenol by an alkaline water phase. Optimal conditions for substrate hydrolysis were selected and proposed for the easy and fast assay of lipase activity in organic media. Agitation and the amount of added water showed little effect on reaction rates. A temperature of 37°C and substrate concentration of 50 mu were selected. The reaction rate in n-heptane was only 0.16 per cent of that in water.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Gaelle Pencreach
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Baratti, J.C.
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