Palm oil mill effluent as a low-cost substrate for bioflocculant production by Bacillus marisflavi NA8

Nurul-Adela, Bukhari; Nasrin, Abu Bakar; Loh, Soh Kheang

doi:10.1186/s40643-016-0096-6

Cited by 20 publications

(11 citation statements)

References 39 publications

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“…The most significant parameter at a low level on the main impact was pH and aluminium sulfate, whereby maintaining the fermentation at acidic pH enhanced the flocculating activity of the metabolite produced. Pu et al [29] and Nurul et al [30] have reported that the flocculating activity was not affected by the inoculum size, which supported our finding.…”

Section: Fig 5 Main Effects Of the Nutritional Components On Floccula...supporting

confidence: 91%

Effect of the lignocellulolytic substrates and fermentation process parameters on myco-coagulant production for water treatment

Fellah

Alam

Mamun

et al. 2023

IIUMEJ

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In the present research, a fungal strain was used to produce a myco-coagulant via solid-state bioconversion to reduce water turbidity. The production of myco-coagulant was achieved using several low-cost lignocellulolytic substrates, namely coco peat, sawdust, palm kernel cake, and rice bran as sources of carbon and nitrogen. This research involves the study of both the effect of lignocellulolytic substrates and the parameters involved in the fermentation process for myco-coagulant production. Coco peat was chosen as a suitable lignocellulolytic substrate to serve as a carbon source for producing myco-coagulant, potentially reducing the turbidity by 84.6% from the kaolin suspension. Sawdust, palm kernel cake, and rice bran showed 33.06%, 30.18, and 21.18 %, respectively. Furthermore, a statistical approach to the Plackett-Burman design was conducted to evaluate the significant parameters that affect the production of myco-coagulant. Eleven fermentation process parameters were selected: concentration of coco peat (2- 4 %), incubation time (5-9 days), temperature (25-35 °C), pH (5-9), glucose (0-2 %), malt extract (1-2 %), yeast extract (0-2%), wheat flour (0-2 %), ammonium sulfate (0-1 %), inoculum size (1-3 %) and potassium dihydrogen phosphate (0-0.5 %). The selected variables were assessed through statistical analysis (main effects) based on their significance. Based on the main effect of each variable on flocculation activity, three variables, namely glucose, malt extract, and pH influenced high levels. On the other hand, the remaining eight variables did not significantly affect the production of myco-coagulant. Furthermore, a deeper study was conducted to further optimize the three effective variables involved in the fermentation process to evaluate these factors' influence on flocculation activity. ABSTRAK: Penyelidikan ini adalah berkenaan strain fungus yang digunakan bagi menghasilkan miko-koagulan melalui penukaran-bio berkeadaan pepejal bagi mengurangkan kekeruhan air. Miko-koagulan dihasilkan dengan menggunakan beberapa substrat lignoselulolitik berkos rendah, iaitu habuk kelapa, habuk papan, hampas kelapa sawit, dan dedak padi sebagai sumber karbon dan nitrogen. Penyelidikan ini mengkaji kesan substrat lignoselulolitik dan faktor-faktor yang terlibat dalam proses fermentasi bagi menghasilkan miko-koagulan. Habuk kelapa dipilih sebagai substrat lignoselulolitik yang sesuai berfungsi sebagai sumber karbon dalam menghasilkan miko-koagulan, berpotensi mengurangkan kekeruhan sebanyak 84.6% daripada ampaian kaolin. Sebaliknya, habuk papan, hampas kelapa sawit, dan dedak padi menunjukkan 33.06%, 30.18, dan 21.18 %, masing-masing. Tambahan pula, pendekatan statistik ke atas reka bentuk Plackett-Burman telah dijalankan bagi menilai parameter penting yang mempengaruhi penghasilan miko-koagulan. Sebelas parameter proses penapaian telah dipilih: kepekatan habuk kelapa (2- 4 %), masa pengeraman (5-9 hari), suhu (25-35 C), pH (5-9), glukosa (0-2 %), ekstrak malt (1-2), tepung gandum (0-2 %), ammonium sulfat (0-1%), saiz inokulum (1-3 %) dan Kalium dihidrogen fosfat (0-0.5 %). Pemboleh ubah yang dipilih dinilai melalui analisis statistik berdasarkan kepentingannya. Berdasarkan kesan utama setiap pemboleh ubah terhadap aktiviti penggumpalan, tiga pemboleh ubah ini adalah glukosa, ekstrak malt, dan pH yang memberi kesan tertinggi. Sebaliknya, lapan pemboleh ubah lain tidak mempengaruhi penghasilan miko-koagulan dengan ketara. Tambahan lagi, kajian yang lebih mendalam telah dijalankan bagi membaiki tiga pemboleh ubah utama yang terlibat dalam proses fermentasi bagi menilai kesan yang mempengaruhi aktiviti penggumpalan.

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Section: Fig 5 Main Effects Of the Nutritional Components On Floccula...supporting

confidence: 91%

Effect of the lignocellulolytic substrates and fermentation process parameters on myco-coagulant production for water treatment

Fellah

Alam

Mamun

et al. 2023

IIUMEJ

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“…4b). Similar results regarding the flocculation activity were reported by Nurul Adela et al [5] when Bacillus marisflavi NA was cultivated in palm oil effluent, producing EPS with a flocculation activity of 80% (Table 1). To our knowledge, the highest EPS flocculation activity reported in literature was of 95.7% for Klebsiella mobilis when cultivated in dairy wastewater [8] (Table 1).…”

Section: Flocculation Activity Of Epssupporting

confidence: 88%

“…Only a few studies on the EPS production using low-cost substrates based on industrial or domestic waste streams can be found in the literature. Recently, Nurul Adela et al [5] used palm oil effluent as carbon source, obtaining a maximum concentration of 6.4 g/L of EPS using Bacillus marisflavi NA8 ( Table 1). The maximum bioflocculant production was achieved at an early stationary phase and the EPS flocculation activity reached 80%.…”

Section: Introductionmentioning

confidence: 99%

Wastewater Valorization by Pure Bacterial Cultures to Extracellular Polymeric Substances (EPS) with High Emulsifying Potential and Flocculation Activities

Drakou

Amorim

Castro

et al. 2017

Waste Biomass Valor

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“…A calibration curve was then used in obtaining the cell mass. Fermentation efficiency was determined with the aid of equations 4 as recommended by Nurul-Adela et al, (2014)…”

Section: Glucose Fermentation Pre-treatmentmentioning

confidence: 99%

Effects of Fermentation Duration on Bio-Ethanol Yield from Cell Sap of Selected Palm Species in Nigeria

Omotosho

Amori

2018

FUOYEJET

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It is believed that feedstock for biofuel production should not constitute any form of competition in terms of food security, therefore the study considered the bioethanol potential comparison of a particular breed of palm commonly referred to as nypa palm (Nypa fruticana) which is usually of environmental concern in mangrove vegetation zones with two other species namely the raphia palm (Raphia hookeria) and oil palm (Ealasis guinesis) which are considered as having economic value. A catalysed fermentation process was carried out using Saccharomyces cerevisiae over a periods of 24, 48, 72, 96, 120, 144 and 168 hrs at room temperature. At peak production the bioethanol from Nypa palm specie had 38.6 and 37.9% more ethanol concentration than the oil and raffia palms respectively. The biomas concentration in the nypa palm sap sample after the fermentation period were about 26.7 and 29.5% higher than what was obtainable in the oil and raffia palms. The fermentation efficiency for the three samples was observed to be 90.2, 84.5 and 87.3% for nypa, oil and raffia palms respectively. It can be concluded from results obtained that nypa palm offered the highest bioethanol production potential, thus could offer a good source of non-competitive feedstock for renewable energy production in Nigeria where the plant is usually viewed as an environmental nuisance and in some extreme cases maritime hazard.Keywords— Alcoholmeter, Bioethanol, Fermentation Efficiency, Feed Stock, Nypa Palm

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Palm oil mill effluent as a low-cost substrate for bioflocculant production by Bacillus marisflavi NA8

Cited by 20 publications

References 39 publications

Effect of the lignocellulolytic substrates and fermentation process parameters on myco-coagulant production for water treatment

Effect of the lignocellulolytic substrates and fermentation process parameters on myco-coagulant production for water treatment

Wastewater Valorization by Pure Bacterial Cultures to Extracellular Polymeric Substances (EPS) with High Emulsifying Potential and Flocculation Activities

Effects of Fermentation Duration on Bio-Ethanol Yield from Cell Sap of Selected Palm Species in Nigeria

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