TY - JOUR
T1 - Inhibitor effect of PCMB and PMSF towards partially purified product from pineapple core (Ananas comosus [L.] Merr) using gel filtration column chromatography method
AU - Amalia, M. F.
AU - Hudiyono, S.
AU - Setiasih, S.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - The research aims to isolate, purify, and examine the inhibitors effect of a partially purified product from pineapple core with Palembang type pineapple (Ananas comosus [L.] Merr). The isolation process obtained crude enzymes with specific activity 42.60 Units/mg. Purification of crude enzymes using fractionation method with ammonium sulfate obtained bromelain fraction with the highest specific activity at 0-50 % saturation level of ammonium sulfate, which is 230.22 Units/mg with a purity level of 5.40 times from its crude extract. Further purification of 0-50 % ammonium sulfate fraction by gel filtration chromatography method using DEAE-Sephadex G-50 matrix obtained enzyme with specific activity 275.46 Units/mg with purity level 6.50 times from its crude extract. The optimum substrate concentration was at a concentration of 1.0 % (w/v). The purified bromelain has a Michaelis-Menten (Km) constant value and the maximum speed of the enzymatic reaction (Vmax) i.e. 0.52 % (w/v) and 0.51 Units/min. The proteolytic activity of bromelain is strongly inhibited by PCMB compound and activated by PMSF at 0.1 mM concentration of 67.27 %.
AB - The research aims to isolate, purify, and examine the inhibitors effect of a partially purified product from pineapple core with Palembang type pineapple (Ananas comosus [L.] Merr). The isolation process obtained crude enzymes with specific activity 42.60 Units/mg. Purification of crude enzymes using fractionation method with ammonium sulfate obtained bromelain fraction with the highest specific activity at 0-50 % saturation level of ammonium sulfate, which is 230.22 Units/mg with a purity level of 5.40 times from its crude extract. Further purification of 0-50 % ammonium sulfate fraction by gel filtration chromatography method using DEAE-Sephadex G-50 matrix obtained enzyme with specific activity 275.46 Units/mg with purity level 6.50 times from its crude extract. The optimum substrate concentration was at a concentration of 1.0 % (w/v). The purified bromelain has a Michaelis-Menten (Km) constant value and the maximum speed of the enzymatic reaction (Vmax) i.e. 0.52 % (w/v) and 0.51 Units/min. The proteolytic activity of bromelain is strongly inhibited by PCMB compound and activated by PMSF at 0.1 mM concentration of 67.27 %.
UR - http://www.scopus.com/inward/record.url?scp=85096461365&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/902/1/012038
DO - 10.1088/1757-899X/902/1/012038
M3 - Conference article
AN - SCOPUS:85096461365
SN - 1757-8981
VL - 902
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
IS - 1
M1 - 012038
T2 - 4th International Symposium on Current Progress in Functional Materials, ISCPFM 2019
Y2 - 6 November 2019 through 7 November 2019
ER -