Optimum Condition of Crude and Semi Pure Extracellular Chitinase Enzyme from Providencia Stuartii for the Production of N-Acetylglucosamine = Kondisi Optimum Enzim Kitinase Ekstraseluler Kasar dan Semi Murni dari Providencia Stuartii untuk Produksi Nasetilglukosamin

Cynthia, Cynthia (2019) Optimum Condition of Crude and Semi Pure Extracellular Chitinase Enzyme from Providencia Stuartii for the Production of N-Acetylglucosamine = Kondisi Optimum Enzim Kitinase Ekstraseluler Kasar dan Semi Murni dari Providencia Stuartii untuk Produksi Nasetilglukosamin. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Shrimp shells are composed of chitin. In this research, shrimp shells of (Penaeus monodon) were used to produce chitin. One of chitin derivatives, glucosamine, is commonly available in the form of N-acetylglucosamine (NAG) and can be produced by enzymatic fermentation of chitin using chitinolytic microorganism. This research was conducted to determine the optimum fermentation condition, specifically pH, temperature, substrate concentration and incubation time, to produce NAG using crude and semi pure extracellular chitinase enzyme from Providencia stuartii. The pH used in the fermentation were 3, 4, 5, 6, 7, 8 and 9 while the temperature used were 30, 40, 50, 60, 70 and 80°C. The result of crude chitinase enzyme showed that the optimum pH was 5 with 40°C temperature, with enzyme activity of 3.23 ± 0.06 U/ml and 3.42 ± 0.06 U/ml, respectively. While the semi pure chitinase enzyme has the optimum pH of 7 and 40°C temperature, with enzyme activity of 4.74 ± 0.06 U/ml and 4.44 ± 0.06 U/ml, respectively. The selected optimum pH and temperature obtained was then used for the substrate concentration and incubation time optimization. The substrate concentration of chitin were 0.5, 1, 1.5 and 2% with incubation time of 2, 4, 6 and 24 hours. Best fermentation was obtained at 1% substrate concentration and 6 hours of incubation for both crude and semi pure extracellular chitinase enzyme, with the amount of NAG concentration produced were 933.89 ± 12.55 ppm and 1050.56 ± 12.54 ppm, respectively. / Kulit udang memiliki kandungan kitin. Pada penelitian ini, kulit udang diperoleh dari Penaeus monodon. Salah satu turunan kitin adalah glukosamin, biasanya tersedia dalam bentuk N-asetilglukosamin (NAG) dan dapat diproduksi melalui fermentasi enzimatik menggunakan mikroorganisme kitinolitik. Tujuan dari penelitian ini adalah untuk menentukan kondisi fermentasi optimum, khususnya pH, suhu, konsentrasi substrat dan waktu fermentasi untuk memproduksi NAG menggunakan enzim kitinase ekstraseluler kasar dan semi murni dari Providencia stuartii. pH yang digunakan pada fermentasi adalah 3, 4, 5, 6, 7, 8 dan 9, serta suhu yang digunakan adalah 30, 40, 50, 60, 70 dan 80°C. Hasil dari enzim kitinase ekstraseluler kasar optimum pada pH 5 dan menggunakan suhu 40°C, dengan hasil aktivitas enzim secara berurutan sebesar 3.23 ± 0.06 U/ml dan 3.42 ± 0.06 U/ml. Sementara enzim kitinase esktraseluler semi murni memiliki kondisi optimum pada pH 7 dan suhu 40°C, dengan aktivitas enzim masing-masing sebesar 4.74 ± 0.06 U/ml dan 4.44 ± 0.06 U/ml. pH dan suhu optimum yang telah ditentukan kemudian digunakan kembali untuk optimasi konsentrasi substrat dan waktu fermentasi. Variasi subsrat kitin yang disediakan adalah 0.5, 1, 1.5 dan 2% dangan waktu fermentasi selama 2, 4, 6 dan 24 jam. Fermentasi terbaik didapat pada konsentrasi substrat 1% dengan waktu fermentasi selama 6 jam untuk kedua enzim kitinase ekstraseluler kasar maupun semi murni, dengan kadar NAG masing-masing 933.89 ± 12.55 ppm dan 1050.56 ± 12.54 ppm.
Item Type: Thesis (Bachelor)
Creators:
Creators
NIM
Email
ORCID
Cynthia, Cynthia
NIM00000011801
saputracynthia@gmail.com
UNSPECIFIED
Contributors:
Contribution
Contributors
NIDN/NIDK
Email
Thesis advisor
Halim, Yuniwaty
NIDN0303068501
yuniwaty.halim@uph.edu
Additional Information: SK 34-15 CYN o 2019; 31001000242223
Uncontrolled Keywords: penaeus monodon shells; n-acetylglucosamine; providencia stuartii; chitin; extracellular chitinase enzyme.
Subjects: T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology
Depositing User: Nicholas Sio Pradiva
Date Deposited: 18 Oct 2021 06:20
Last Modified: 13 May 2024 06:24
URI: http://repository.uph.edu/id/eprint/42747

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