FACTORIAL DESIGN SCREENING FOR THE RED PIGMENT PRODUCTION BY MONASCUS PURPUREUS FTC 5356

2016 ◽  
Vol 78 (11-2) ◽  
Author(s):  
Nor Farhana Hamid ◽  
Farhan Mohd Said

Factorial design experiment was used to obtain maximum information from the least amount of experimental runs. The goal of this study was to screen the significant factors from multivariable parameters which can influence the production of red pigment by Monascus purpureus FTC 5356 under solid state fermentation (SSF) using oil palm frond (OPF). Five factors such as initial moisture content (A), nitrogen source concentration (B), percentage of OPF leaflet to petiole (C), initial pH of substrate (D), and inoculum size (E) were screened in sixteen experimental runs. To reduce cost, the feasibility of OPF as an alternative substrate was investigated. Percentage of OPF leaflet and initial pH of OPF substrate contributed significantly (P-values of 0.0121 and 0.0229, respectively). Meanwhile, other factors such as initial moisture content (P- value 0.0766) and inoculum size (P-value 0.0895) had least impact to the red pigment production

2018 ◽  
Vol 19 (1) ◽  
pp. 34-47 ◽  
Author(s):  
Farhan M. Said ◽  
Nor Farhana Binti Hamid

Factors such as environmental conditions and nutrients are significant for successful growth and reproduction of microorganisms. Manipulations of the factors are the most effective way to stimulate the growth of the microorganism, which can be used to optimize the yield of a product. In this study, Central Composite Design (CCD) of Response Surface Methodology (RSM) was used to optimize the production of red pigment by Monascus purpureus FTC 5356 using the petioles of oil palm fronds (OPF) as a substrate in solid state fermentation (SSF). The data was analyzed using Design Expert Software. The optimum combination predicted via RSM was confirmed through experimental work. The interactions between three variables such as initial moisture content (%), initial pH value (pH), and peptone concentration (%) were studied and modelled. The statistical analysis of the results showed that the optimal conditions for red pigment production 47 AU/g with the biomass of 425.1 mg/g was at 55% initial moisture content, 3% of peptone, and at pH 3.  The RSM results showed that the initial pH value had a significant effect on red pigment production (P-value <0.05). The validation of these results was also conducted by fermentation with predicted conditions and it was found that there was a discrepancy of 0.39% between the values of the experimental result and those of the predicted values. ABSTRAK: Keadaan persekitaran dan nutrien merupakan faktor-faktor penting dalam pertumbuhan mikroorganisma. Manipulasi faktor-faktor tersebut adalah kaedah terbaik bagi meningkatkan pertumbuhan mikroorganisma dan mengoptimumkan penghasilan produk. Kajian ini mengguna pakai Rekaan Gabungan Pusat (CCD) melalui Kaedah Tindak balas Permukaan (RSM) bagi penghasilan pigmen merah optimum oleh Monascus purpureus FTC 5356 menggunakan batang pelepah kelapa sawit (OPF) sebagai perumah dalam proses penapaian pepejal (SSF). Data telah dianalisis menggunakan perisian Design Expert. Gabungan parameter optimum seperti cadangan RSM telah disahkan secara eksperimen. Interaksi antara tiga pemboleh ubah seperti kandungan lembapan awal (%), nilai pH awal (pH), dan kepekatan pepton (%) telah dikaji dan dimodelkan. Analisis statistik menunjukkan penghasilan optimal pigmen merah adalah pada 47 AU/g dengan biomas sebanyak 425.1 mg/g, pada 55% lembapan awal, 3% pepton dan pada pH 3. Hasil keputusan RSM menunjukkan pH awal memberikan kesan signifikan kepada penghasilan pigmen merah (nilai P <0.05). Pengesahan analisis juga telah dijalankan melalui proses penapaian dan hasil ujikaji mendapati 0.39% lebih tinggi daripada nilai jangkaan.


2021 ◽  
Author(s):  
Dilara Mehri ◽  
Altınay Perendeci ◽  
Yekta Goksungur

Abstract Various biotechnological approaches have been employed to convert food waste into the value-added bioproducts through fermentation processes. Whey, a major waste generated by dairy industries, is considered an important environmental pollutant due to its massive production and high organic content. The purpose of this study is to produce red color pigment from whey by using Monascus purpureus. The submerged culture fermentation parameters have been optimized to produce the red Monascus pigment. Demineralized (DM), deproteinized (DP), and raw whey (W) powders were used as a substrate for pigment production by simultaneous hydrolysis and fermentation (SHF). The maximum red pigment production was obtained as 38.4 UA510nm at the optimized condition of SHF. Optimum conditions of SHF were 2 % (v/v) inoculation ratio, 75 g/l of lactose as C source, 25 g/l of MSG as N source, and fermentation medium pH of 7.0. The specific growth rate of Monascus purpureus on whey and the maximum pigment production yield values were 0.023 h-1 and 4.55 UAd-1, respectively. This study is the first in the literature to show that DM whey is a sustainable substrate in the fermentation process of the Monascus purpureus red pigment.


2009 ◽  
Vol 5 (1) ◽  
pp. 80-91 ◽  
Author(s):  
Mohd Shamzi Mohamed ◽  
Rosfarizan Mohamad ◽  
Musaalbakri Abdul Manan ◽  
Arbakariya B. Ariff

Nutrafoods ◽  
2015 ◽  
Vol 14 (3) ◽  
pp. 159-167 ◽  
Author(s):  
Prateek Srivastav ◽  
Vivek Kumar Yadav ◽  
Sharmila Govindasamy ◽  
Muthukumaran Chandrasekaran

2019 ◽  
Vol 81 (6) ◽  
Author(s):  
Halifah Pagarra ◽  
Roshanida A. Rahman ◽  
Rachmawaty ◽  
Nor Hasmaliana Abdul Manas

Exo-polygalacturonase was produced by Aspergillus niger ATCC 120120 in a solid-state fermentation using Nephrolepis biserrata leaves. Factors affecting the production of exo-polygalacturonase were determined using a two-level fractional factorial design. The screening process for six factors; pH, incubation time, temperature, pectin concentration, inoculum size and moisture content, that influence the production of exo-polygalacturonase by A. niger was performed. The result of variance analysis (ANOVA) suggested that there were four statistically significant (P < 0.005) factors in the production of exo-polygalacturonase by A. niger. These factors were incubation time, temperature, pectin concentration and moisture content. The statistical analysis shows that the linear mathematical model is significant with coefficient of determination (R2) value of 0.9711. The optimum production of exo-polygalacturonase obtained using the model in this study was at 40.00 U/g.


2016 ◽  
Vol 8 (3) ◽  
pp. 1663-1669 ◽  
Author(s):  
C. Padmapriya ◽  
R. Murugesan

Pencillium purpurogenum 8904.12, a red pigment producer, was isolated from soil screened and selected based on the pigment production. The pigment production by P.purpurogenum was optimizedby using factorial design and Response Surface Methodology (RSM) in SSF. Cassava waste is a low cost and nutrient rich substrate used in this study as a substrate. RSM based central composite design was employed to obtain best combination of substrate concentration, inoculum volume, incubation time, initial moisture and initial pH. By the point prediction tool of Design-Expert 8.0, the optimum values of the factors for maximum red pigment production were determined. Under the optimized conditions (substrate concentration 10 g, inoculum volume 5 ml, 15 days incubation time, 50 % initial moisture and initial pH of 6), the red pigment yield was 28.33 colour value units / g of dry fermented substrate which agreed closely with the predicted yield. The model showed that the value of R2 (0.9936) was high and pvalue of interaction of variance was <0.0001. Hence the model can be said to be of highly significant. A significant Increase in red pigment production was achieved using RSM. Thus, utilization of cassava waste for red pigment production in this study could provide the most effective use of cassava resource, and lead to technology of development for its further utilization and value addition.


2017 ◽  
Vol 1 (1) ◽  
pp. 13-15 ◽  
Author(s):  
Mohamad Al Aamin Razali ◽  
Farhan M. Said

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