Detection of Fish Freshness Using Immobilized ADP-ase and 5'-Nucleotidase on Polyacrylamide Gel by Perpustakaan UGM, i-lib

“…The results showed that in the non-immobilized form, ADPase has an optimum pH of 6 and stable at pH 5.5-10, while 5'-nucleotidase has two optima pH of 6.5 and 9 and it was stable at pH 7-10. …”

PENGARUH pH ASAM TERHADAP KEKUATAN TARIK FIBER REINFORCED COMPOSITE JENIS ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE by , MOHAMMAD MUCHLISUL GHONI, , Prof. Dr. drg. Widjijono, SU.

“…Specimens were divided into three groups and soaked in the artificial saliva with pH 5.5, 4.5, and 2.5 (n=4). Specimens were incubated for 7 days in 37oC temperature. …”

Direct Stimulation by Methanol Addition on the Cultured Medium for Methanol Dehydrogenase Protein Purification from Bradyrhizobium japonicum USDA110 by Kurniawati, Novita, Pertiwiningrum, Ambar, Erwanto, Yuny, Fitriyanto, Nanung Agus, Abidin, Muhammad Zainal

“…Bradyrhizobium japonicum USDA110 MDH enzyme was purified by using 25 mM 2-(N-morpholine) ethanesulfonic acid/MES pH 5.5 buffer and 1 M sodium chloride/NaCl which separated into three columns, the first column was PD-10 for buffer exchange; the second column was HiTrap Sepharose HP to obtain unbonded fraction in the column; and the third column was Mono S 5/50 GL integrated with two pumps HPLC (high-performance liquid chromatography) to obtain pure MDH enzyme for serial changing of 1 M NaCl-25mM MES pH 5.5 with the flow rate at 1 ml/min. …”
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Analisis kandungan f- dalam air dan urine di daerah endemik gondok (sawangan) dan daerah control mungkid) dengan teknik elektrode spesifik ion by Perpustakaan UGM, i-lib

“…An equal quantity of TISAB II (CDTA) buffet solution (pH = 5.5) was added to the standard and sample solutions for maintaining pH and ion strength. …”

AKTIVITAS ENZIM AMILASE UBI JALAR KUNING (Ipomoea batatas, L) VARIETAS KOREA by , ALFINA DEWI, , Dr. Ir. Muhammad Nur Cahyanto, M.Sc

“…Korea has the highest activity at pH 5,5 and 55° C, but, amylase is not stable in 55°C because the activity decrease to 50% at 60 minutes of incubation. …”

ISOLASI Rhizopus oryzae DAN EVALUASI KEMAMPUANNYA UNTUK MEMPRODUKSI ETANOL PADA MEDIA EKSTRAK APEL by , DESIE SURACHMAN, , Prof. Dr. Ir. Sardjono, MS.

“…Ethanol fermentation is done with apple extract with water 1:1 w / v , initial pH 5,5-6 , initial sugar content of 49.33 g / l and inoculated with different spore concentrations of 104/ml and 105/ml . …”

PENGARUH WAKTU AGING DAN RASIO MOL Si/Al TERHADAP SINTESIS MCM-41 PADA TEMPERATUR KAMAR by , ISTI YUNITA, , Dr. Sutarno, M.Si.

“…The optimum condition of phosphate adsorption on as-synthesized MCM-41 and Al- MCM-41 was obtained at pH 5.5 and contact time of 60 minutes, with the adsorption capacity of 50.27 mg.g-1 and 49.95 mg.g-1, respectively. …”

PENGARUH PERLAKUAN PENDAHULUAN PADA INKUBASI BIJI KAKAO KERING NON FERMENTASI DALAM BUFFER ASETAT TERHADAP SIFAT SENSORIS PASTA COKELAT GELAP by , Mukhammad iqbal Prawira Atmaja, , Prof. Dr.Ir. Haryadi, M.App.Sc.

“…Incubation was carried out in two stages, the first stage in acetic buffer medium pH 2.7, 600 mM for 24 hours, then a sec- ond stage in acetic buffer medium pH 5.5, 600 mM for 12 hours. While cocoa liq- uor roasting at of 120°C for 9 minutes. …”

The characterization of cellulase produced by buffalo rumen microbe:Determination of michaelis constants (Km) and maximum velocity (Vm) by Perpustakaan UGM, i-lib

“…Optimum activity of /3-glucosidase was obtained at temperature 50 °C and pH 5.0, while for CMCase was 50 °C and pH 5.5. On the other hand, optimum activity of FPase was obtained at temperature 45 °C and pH 6.0. …”

Penurunan Kadar Glukosida Sianogenik Biji Koro Benguk (Mucuna Pruriens, d.c.) oleh Aktivitas Fermentasi Aspergillus Oryzae, A. Sojae, Rhizopus Oligosporus dan R. Oryzae.... by Perpustakaan UGM, i-lib

“…:oryzae, A. sojae, R. oligosporus dan .R. oryzae selama fermentasi diekstraksi.dengan 0,1 M bufer asetat pH 5,5. Untuk uji aktivitas enzim digunakan substrat biji koro benguk dan p-nitrofenil glukosida.…”

Prebiotic effect of porang oligo-glucomannan using fecal batch culture fermentation by Anggela, Angela, Harmayani, Eni, Setyaningsih, Widiastuti, Wichienchot, Santad

“…It was hydrolyzed using β-mannanase to obtain POG under optimal conditions: reaction temperature of 37 °C, reaction time of 4 h, pH 5.5 and E/S of 1:1,000 (w/w). The study aimed to evaluate the fermented POG, which might also generate short-chain fatty acids (SCFA) and to estimate the prebiotic activity score of POG fermented in vitro. …”
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Physical and chemical fermentation conditions affect the growth and metabolite production of endophytic fungi Athelia rolfsii by Suharsanti, Ririn, Wahyuono, Subagus, Astuti, Puji

“…Supplementing inorganic source of nitrogen to the culture medium decreased the production. While pH 5.5 was found to be the optimum condition for total metabolite production, pH 6-7 resulted in higher productivity of the bioactive compound. …”
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Pembentukan biofilm oleh bakteri filamentous yang tumbuh pada medium cair mengandung merkuri anorganik (HgCl2)=Production of biofilm by filamentous bacteria grown on liquidmedium... by Perpustakaan UGM, i-lib

“…Three of those isolates were able to grow at generation times (g) of 1,04h - 5,5h and specific growth rates (p) of 0,11 - 0,31h-I on medium containing 4 mg1-1 HgC12. …”

PENGARUH FERMENTASI BUNGKIL INTI KELAPA SAWIT MENGGUNAKAN ISOLAT BAKTERI SELULOLITIK DARI BELALANG KEMBARA (Lokusta migratoria L.) DALAM PAKAN TERHADAP PENAMPILAN PRODUKSI PUYUH JA... by , ARIF PRANATA, , Prof. Dr. Ir. Lies Mira Yusiati, S.U.

“…The result showed the optimum bacterial growth was on pH 5.5, incubation temperature 30oC and days 2 incubation. …”