Effects of different pretreatment methods on anaerobic mixed microflora for hydrogen production and COD reduction from palm oil mill effluent by Mohammadi, P., Ibrahim, Shaliza, Annuar, M.S.M., Law, S.

“…The experimental results showed that the pretreatment methods (chemical, acid, heat-shock, freezing and thawing, and base) at 35 °C and initial pH 5.5 had a positive influence on H 2 production yield and chemical oxygen demand (COD) removal efficiency during the fermentative H 2 production as compared to the control experiments (without pretreatment). …”
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Particle velocity of submicron polystyrene latex and bubble formation in aqueous system under continuous and pulsed direct current by Abu Bakar, N.F., Basaruddin, B., Naim, M. Nazli, Lenggoro, I. Wuled, Iijima, M., Kamiya, H.

“…The velocity of the PSL particles of varied sizes, i.e., 600, 300 and 100 nm at pH 5.5 and electric field strength of 4.1 V/cm were measured using a zeta potential meter under continuous and pulsed DC frequencies of 83.3, 10 and 5 Hz. …”

Factors affecting the accumulation of 9-methoxycanthin-6-one in callus cultures of Eurycoma longifolia. by Rosli, N., Mahmood, Maziah, Chan, K. L., Sreeramanan, S.

“…Higher production of 9-methoxycanthin-6-one was obtained at pH 5.5 (1.53 mg'g-1 DW). Production of 9-methoxycanthin-6-one (2.34 mg'g-1 DW) in callus cultures is also increased when the medium is added with 1×10-1 μM phenylalanine. …”
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Review of affinity precipitation methods by Mustapha, Sa'ari

“…This mathematical model can be useful to analyzing kinetic enzyme in experimental system. 2) Affinity Precipitation using the dimer of nicotinamide-adenine dinucleotide which is proposed by Mosbach and Larsson (1979). 3) Metal Affinity Precipitation of Proteins that bischelates of Cu (II) as macroligands used to precipitate of proteins. 4) Metal Affinity Aggregation of Proteins for aggregating of proteins which obtained via applying classical gelation theory and ion binding equilibrium. 5) Purification of Lectin by Affinity Precipitation is done by mixing extracted lectins from wheat germ, potato and tomato and 2 ml of chitosan solution. 6) Lectins from wheat germ, potato and tomato extracts (1.0 ml clarified extracts containing 21 722, 54 650 and 19 280 units) were added to 2 ml of chitosan solution (0.4% wv21 in 50 mM acetate buffer, pH 5.5). Other methods which are explained 6) Affinity Chromatography for Purification of Enzymes, and 7) Affinity precipitation method using k-carrageenan. …”
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Biohydrogen production by Clostridium butyricum EB6 from palm oil mill effluent by Chong, Mei Ling, Abdul Rahim, Raha, Shirai, Yoshihito, Hassan, Mohd Ali

“…Experimental results showed that the optimum hydrogen production ability occurred at pH 5.5. The maximum hydrogen production and maximum volumetric hydrogen production rate were at 3195 mL H2/L-medium and 1034 mL H2/L-medium/h, respectively. …”
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Biohydrogen production by Clostridium butyricum EB6 from palm oil mill effluent by Chong, Mei Ling, Abdul Rahim, Raha, Shirai, Yoshihito, Hassan, Mohd Ali

“…The effect of pH on hydrogen production from POME was investigated.Experimental results showed that the optimum hydrogen production ability occurred at pH 5.5. The maximum hydrogen production and maximum volumetric hydrogen production rate were at 3195 mL H2/L-medium and 1034 mL H2/L-medium/h,respectively. …”
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Enzymatic Hydrolysis And Yeast Fermentation Of Okara by Ramli, Saadiah

“…The highest total sugar content of 1000 ug/mL was obtained on optimal condition of enzymatic hydrolysis at 24°C, enzyme concentration of 4.8% (v/w) and pH 5.5. Fermentation of okara with S. cerevisiae found a change in yeast viability over 72 hours. …”
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Starch degradation and biohydrogen generation by Bacillus sp. SSA by Aziz, Fatin Syuhadah

“…The maximum biohydrogen production was obtained at temperature 30ºC, pH 5.5 and initial substrate concentration 1.0 g/L with a total value of 0.141 mL. …”
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Biosorption of lead (II) from aqueous solutions by dried water hyacinth (Eichhornia Crassipes) by Siti Aishah, Abd Wahid

“…From the result obtained, the removal of Pb (II) ions was optimum when initial lead concentration was almost 40 mg/ L, biosorbent dosage at 0.225 g, pH 5.5 and at 8 minutes contact time. Other process conditions were optimized. …”
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Optimum conditions for sucrose production using ultrasonic treatment by Tea, Lei Kwan

“…The coconut sugar concentrations that were used in this study were 40, 60 and 80 % w/v, diluted in pH 5.5 acetate buffer solution. Ultrasonic frequencies of 25, 68 and 132 kHz were used to treat these coconut sugar concentrations for 5 hours with the samples being analyzed every 30 minutes. …”
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Enzymatic production of fructooligosaccharides from phytoenzymes of ananas comosus waste by using response surface methodology: one factor by Nur Dini, M. J., Noormazlinah, Ahmad, Norhanimah, Hamidi, Nurul Aini, Mohd Azman

“…As a result, an optimum condition FOS production was obtained are, time of reaction (100 minutes), temperature (60 ̊C), pH (5.5), sucrose concentration (60%w/v), and phytoenzymes concentration (30% w/v), respectively and producing 150.456 (g/ml).This investigation can be further extended to explore the prebiotic potential of synthesized FOS.…”
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Bacterial cellulose production from food waste by Chua, Gek Kee

“…The optimal operating conditions to produce BC were found to be at 30C, pH 5.5, 10% inoculum density and 150 rpm stirring speed. …”
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Adsorption Study of Fructosyltransferase Immobilization By Using Various Adsorbent by Nor Hazwani Syuhada, Azmi

“…For the immobilization process, it was occurred in water bath shaker for 26 h at room temperature and at pH 5.5. The enzyme activity was analyzed by using DNS method. …”
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Production of Bioethanol from Kundur [Benincisa Hispida (Thunb) Cogn] by Siti Salbiah, Mutalib

“…The fermentation process was carried out in duplicate at 30°C, pH 5.5 and 200rpm for 72hours. According to the results obtained, the ethanol yield for the fermentation process without nutrient supplement is in the range of -0.192~ -0.194 (g ethanol/g biomass) while the specific growth rate is in the range of -0.0148~ -0.015h-1. …”
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Use of probiotic Bacillus megaterium NCH 55 for treatment of subclinical mastitis in cows – preliminary study by Oksana Shkromada, Alina Pikhtirova, Ewa Pecka-Kiełb, Oleksandr Skliar, Yurii Musiienko

“…The probiotic B. megaterium NСH 55 can be considered as an alternative to antibiotics and other chemotherapeutic drugs for treating SM in cows.…”
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Effect of the Preparation Conditions on the Catalytic Properties of CoPt for Highly Efficient 4-Nitrophenol Reduction by Oana-Georgiana Dragos-Pinzaru, Gabriela Buema, Daniel Gherca, Ibro Tabakovic, Nicoleta Lupu

“…The results indicated that after only 5 min, the CoPt sample prepared at pH = 5.5 in the presence of saccharin completely converted the nitro compound to an amino compound.…”
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Immobilization of α-transglucosidase on silica-coated magnetic nanoparticles and its application for production of isomaltooligosaccharide from the potato peel by Rohit Maurya, Usman Ali, Sunaina Kaul, Raja Bhaiyya, Ravindra Pal Singh, Koushik Mazumder

“…Further, the optimum conditions for transglucosylation were determined by RSM as follows: enzyme-to-substrate ratio 6.9 U g−1, reaction time 9 h, temperature 45 °C, and pH 5.5 with a yield of 70 g l−1 (± 2.1). MALDI-TOF–MS analysis showed DP of the IMOs in ranges of 2–10. …”
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Expression, characterization, and cellular localization of knowpains, papain-like cysteine proteases of the Plasmodium knowlesi malaria parasite. by Rajesh Prasad, Atul, Awakash Soni, Sunil Kumar Puri, Puran Singh Sijwali

“…All three knowpains were present in the food vacuole, active in acidic pH, and capable of degrading haemoglobin at the food vacuolar pH (≈5.5), suggesting roles in haemoglobin degradation. …”
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Alginate/chitosan/diallyl disulfide nanoparticles: Synthesis, characterization and their anti-inflammatory efficacy on TPA-induced acute mouse ear inflammation by Abhipriya Chatterjee, Sampurna Bhattacharya, Runa Sur

“…Characterization of the nanoparticles showed monodispersed nanosized particles and a release study at pH 5.5 revealed sustained release of the drug. To investigate the anti-inflammatory efficacy of the DADS nanoparticle (DADS-NP), a comparative study with the free drug was conducted on a mouse model of 12-O-tetradecanoylphorbol-13-acetate (TPA) induced ear edema. …”
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Separation of Lead (Pb2+) and Cadmium (Cd2+) from Single and Binary Salt Aqueous Solutions Using Nanofiltration Membranes by Ahmed Abed Mohammed, Ass. Prof. Dr., Qusay Fadhil Alsalhy, Prof. Dr., Salwa Hadi Ahmed, Instructor

“…The effect of the operating variables (pH (5.5-6.5), types of NF membrane and initial ions concentration (10-250 ppm)) on the separation process and water flux was investigated. …”
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