Modelling and Simulation of Citric Acid Production from Corn Starch Hydrolysate Using Aspergillus Niger

Amenaghawon, Andrew N.; Aisien, Felix Aibuedefe

doi:10.5539/enrr.v2n1p73

Cited by 13 publications

(16 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, results showed that the maximum concentration can be obtained with 14--22% of sugar. A study by Xu et al (1989) using sucrose, glucose, fructose, mannose and maltose obtained the maximum yield at a sugar concentration of 10% (w/v), except for glucose, where a 7.5% (w/v) maximum yield was obtained (Amenaghawon & Aisien 2012).…”

Section: Factors Affecting Citric Acid Fermentationmentioning

confidence: 99%

“…This technique has been proven to be economical for clear fermentation media. However, it is 50% more expensive than other recovery processes such as precipitation (Amenaghawon & Aisien 2012). In laboratory analyses, the determination and quantification of citric acid are done using spectrophotometry (Themelis & Tzanavaras 2001;Jham et al 2002), gas chromatography (Jham et al 2002), high-performance liquid chromatography (Jham et al 2002), high-resolution nuclear magnetic resonance spectroscopy (del Campo et al 2006) and the traditional method of titration (Williams 1984).…”

Section: Recovery Of Citric Acidmentioning

confidence: 99%

See 1 more Smart Citation

Overview of citric acid production from Aspergillus niger

Show

Oladele

Siew

et al. 2015

Frontiers in Life Science

219

126

View full text Add to dashboard Cite

Citric acid has high economic potential owing to its numerous applications. It is mostly produced by microbial fermentation using Aspergillus niger. In view of surges in demand and growing markets, there is always a need for the discovery and development of better production techniques and solutions to improve production yields and the efficiency of product recovery. To support the enormous scale of production, it is necessary and important for the production process to be environmentally friendly by utilizing readily available and inexpensive agro-industrial waste products, while maintaining high production yields. This article reviews the biochemistry of citric acid formation, choices of citric-acid producing microorganisms and raw materials, fermentation strategies, the effects of various fermentation conditions, citric acid recovery options and the numerous applications of citric acid, based on information drawn from the literature over the past 10 years.

show abstract

Section: Factors Affecting Citric Acid Fermentationmentioning

confidence: 99%

Section: Recovery Of Citric Acidmentioning

confidence: 99%

Overview of citric acid production from Aspergillus niger

Show

Oladele

Siew

et al. 2015

Frontiers in Life Science

219

126

View full text Add to dashboard Cite

show abstract

“…Pertumbuhan A. niger dihambat oleh produk yang dihasilkannya [2], [3] sehingga adalah: (3) Persamaan (3) di substitusi ke persamaan (1), sehingga diperoleh persamaan akhir untuk menghitung laju pertumbuhan yang dinyatakan pada persamaan (4). (4) Persamaan (4) …”

Section: Pendahuluanunclassified

“…[4] Woin arosc hy et. al., (2010 ) [2] Amen agha won and Aisie n (2012 ) [3] Znad et. al., K s merupakan konstanta kejenuhan Monod.…”

Section: Hasil Dan Pembahasanunclassified

“…Besarnya nilai K s pada saat konsentrasi awal glukosa 30, 50, dan 70 g/l adalah 157,5 g/l. Nilai K s hasil dari berbagai penelitian adalah 115,3839 g/l [2] dengan konsentrasi awal glukosa 150 g/l; 0,0006 g/l [3] dengan konsentrasi awal glukosa 3,032 g/l; 130,902 g/l [5] dengan konsentrasi awal glukosa 150 g/l. Nilai Ks dipengaruhi oleh jenis substrat dan mikroorganisme.…”

Section: Hasil Dan Pembahasanunclassified

See 1 more Smart Citation

Studi Kinetika Konsumsi Glukosa oleh Aspergillus Niger dalam Produksi Bioethanol dari Lignoselulosa

Widiyanti¹

2017

Intek

View full text Add to dashboard Cite

-Global warming resulted from CO 2 level increase in the atmosphere has caused elevation of earth temperature and uncertain climate changes. To prevent the rise of CO 2 in the atmosphere can be done by using biomass fuel such as bioethanol. The raw materials of bioethanol can be derived from oil palm empty fruit bunch. Enzymatic hydrolysis utilizes cellulase-producing fungus and in this research, Aspergillus niger was chosen. The glucose produced is consumed by A niger as carbon source and this is undesirable, therefore it should be minimized as low as possible. Knowing the rate of glucose consumption is important to have a model of the hydrolysis reaction rate which will be helpful in the design process on an industrial scale hydrolysis reactor.This study aimed to determine the equations that can be used to approximate the growth rate of A. niger, glucose consumption, the formation of citric acid, and the kinetic parameters used to modeling the kinetics of glucose consumption by A. niger. Kinetics of glucose consumption by A. niger was studied in batch system with variation of initial glucose concentration of 30, 50, 70 g/l. The growth rate of A. niger, glucose consumption, and the formation of citric acid were modeled using 3 equations; i.e. Monod with non-competitive product inhibition, Luedeking-Piret, and Luedeking-Piret growth associated product formation, respectively. The values of kinetic parameters such as μ max , K s , K p , were 0.65 hour -1 , 157.5 g/l, 0. Keywords-glucose, A. niger, citric acid, Monod noncompetitive product inhibition, Luedeking-Piret AbstrakPemanasan global mengakibatkan peningkatan suhu bumi dan perubahan iklim tidak menentu. Hal ini diakibatkan dari semakin bertambahnya CO 2 di atmosfer. Untuk meminimalisasi penambahan jumlah CO 2 diatmosfer dapat dilakukan dengan penggunaan bahan bakar yang berbahan baku biomassa yaitu bioetanol. Bahan baku bioetanol dapat berasal dari tandan kosong kelapa sawit (TKKS). Proses hidrolisis secara enzimatis dapat menggunakan jamur penghasil selulase seperti Aspergillus niger. Jamur A. niger menghidrolisis selulosa untuk mendapatkan glukosa. Sebagian glukosa hasil hidrolisis dikonsumsi A. niger untuk memenuhi kebutuhan sumber karbonnya. Konsumsi glukosa oleh A. niger merupakan hal yang tidak diinginkan dan sebisa mungkin diminimalkan. Besarnya laju konsumsi glukosa penting diketahui untuk mendapatkan model laju reaksi hidrolisis yang nantinya akan bermanfaat pada proses perancangan reaktor hidrolisis pada skala industri.Penelitian ini bertujuan untuk menentukan persamaan yang dapat digunakan untuk mendekati kecepatan pertumbuhan A. niger, kecepatan konsumsi glukosa, kecepatan produksi asam sitrat oleh A. niger, serta mengetahui parameter-parameter kinetika yang digunakan dalam penyusunan model kinetika konsumsi glukosa oleh A. niger. Kinetika konsumsi glukosa oleh A. niger dipelajari secara batch dengan variasi konsentrasi awal glukosa 30, 50, 70 g/l. Laju pertumbuhan, konsumsi glukosa, produksi asam sitrat oleh A. niger didekati dengan pe...

show abstract

Production of chitosan from Aspergillus niger and quantitative evaluation of the process using adapted analytical tools

Krake,

Conzelmann,

Heuer

et al. 2024

Biotechnol Bioproc E

View full text Add to dashboard Cite

The chitosan production process from fishery waste is already established in industrial scale, whereby fungal chitosan is produced in lower amounts. Since fungal chitosan could be isolated from under-valorized vegan streams while exhibiting slightly different characteristics, it has also potential for other applications. Within this publication, we focus on the chitosan production from Aspergillus niger. This study provides a detailed determination of the biomass composition, adapting and comparing different analytical tools, with special focus on the chitin and chitosan content. The major content of the dried biomass is composed of glucans (48.6 ± 1.4%), followed by proteins with an amount of 22.2 ± 0.7%. Chitin and chitosan provide 16.0 ± 0.8% of the biomass. Within our chitosan production studies, we compared the effect of different process strategies including steps as deproteinization (DP), acid extraction (AE), deacetylation (DA), as well as purification. Initially, we obtained poor values (lower than 73.6%) for the chitosan purity. A direct DA step followed by purification resulted in a chitosan purity of up to 89.6%, a recovery of 30.5% and a yield with regard to the biomass of 5.5%. The DA degree of the resulting chitosan is similar to chitosan derived from fishery waste, whereas the molecular weight is lower. The results achieved so far are consistent with the literature, extending beyond, the data emphasized that a chitosan production from residual fungal biomass after fermentation is suitable by direct DA and purification. However, further adaption is necessary so that other matrix compounds could be also obtained.

show abstract

Modelling and Simulation of Citric Acid Production from Corn Starch Hydrolysate Using Aspergillus Niger

Cited by 13 publications

References 26 publications

Overview of citric acid production from Aspergillus niger

Overview of citric acid production from Aspergillus niger

Studi Kinetika Konsumsi Glukosa oleh Aspergillus Niger dalam Produksi Bioethanol dari Lignoselulosa

Production of chitosan from Aspergillus niger and quantitative evaluation of the process using adapted analytical tools

Contact Info

Product

Resources

About