Bioethanol Production from Water Hyacinth Hydrolysate by Candida tropicalis Y-26

Madian, Hekmat R.; Sidkey, Nagwa M.; Elsoud, Mostafa M. Abo; Hamouda, Hamed I.; Elazzazy, Ahmed M.

doi:10.1007/s13369-018-3247-6

Cited by 26 publications

(18 citation statements)

References 28 publications

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“…This is evident because of a huge quantity of cellulose content in them. The utilization of their biomass ultimately depends on first, the extraction of sugars, and secondly, the exploitation of the fermentable capacity of extracted sugars for maximal ethanol generation [ 14 , 32 ]. The present work is aimed at achieving the maximal sugar production under optimal and economic conditions.…”

Section: Discussionmentioning

confidence: 99%

Optimization of oxalic acid pre-treatment and enzymatic saccharification in Typha latifolia for production of reducing sugar

Ramaiah

Thimappa

Nataraj

2020

Journal of Genetic Engineering and Biotechnology

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Background Plants with high biomass can be manipulated for their reducing sugar content which ultimately upon fermentation produces ethanol. This concept was used to enhance the production of reducing sugar from cattail ( Typha latifolia ) by oxalic acid (OAA) pre-treatment followed by enzymatic saccharification. Result The optimum condition of total reducing sugar released from OAA pre-treatment was found to be 22.32 mg/ml (OAA—1.2%; substrate concentration (SC)—6%; reaction time (RT)—20 min) using one variable at a time (OVAT). Enzymatic saccharification yielded 45.21 mg/ml of reducing sugar (substrate concentration (SC)—2.4%; enzymatic dosage—50 IU/g; pH 7.0; temp—50 °C) using response surface methodology (RSM). Conclusion We conclude that Typha can be used as a potential substrate for large-scale biofuel production, employing economical bioprocessing strategies.

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Section: Discussionmentioning

confidence: 99%

Optimization of oxalic acid pre-treatment and enzymatic saccharification in Typha latifolia for production of reducing sugar

Ramaiah

Thimappa

Nataraj

2020

Journal of Genetic Engineering and Biotechnology

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“…Generally, although Saccharomyces cerevisiae remains the world's most exploited yeast for alcoholic fermentation, its wild strains are incapable of metabolizing the pentose sugars (i.e., xylose and arabinose) that are released during hydrolysis of hemicelluloses [6]. Such sugars can also be fermented to ethanol by other yeast genera, namely C5 strains, with Pichia [34], Candida [35] and Pachysolen [36] being proposed as the most promising for bioethanol production from various lignocellulosic feedstocks, either in mono-culture, or in co-culture with conventional strains. Co-culturing seems to have advantages over mono-cultures [34].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Various Pretreatment Approaches for Bio-Ethanol Production from Willow Sawdust, Using Co-Cultures and Mono-Cultures of Different Yeast Strains

et al. 2022

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The effect of different pretreatment approaches based on alkali (NaOH)/hydrogen peroxide (H2O2) on willow sawdust (WS) biomass, in terms of delignification efficiency, structural changes of lignocellulose and subsequent fermentation toward ethanol, was investigated. Bioethanol production was carried out using the conventional yeast Saccharomyces cerevisiae, as well as three non-conventional yeasts strains, i.e., Pichia stipitis, Pachysolen tannophilus, Wickerhamomyces anomalus X19, separately and in co-cultures. The experimental results showed that a two-stage pretreatment approach (NaOH (0.5% w/v) for 24 h and H2O2 (0.5% v/v) for 24 h) led to higher delignification (38.3 ± 0.1%) and saccharification efficiency (31.7 ± 0.3%) and higher ethanol concentration and yield. Monocultures of S. cerevisiae or W. anomalus X19 and co-cultures with P. stipitis exhibited ethanol yields in the range of 11.67 ± 0.21 to 13.81 ± 0.20 g/100 g total solids (TS). When WS was subjected to H2O2 (0.5% v/v) alone for 24 h, the lowest ethanol yields were observed for all yeast strains, due to the minor impact of this treatment on the main chemical and structural WS characteristics. In order to decide which is the best pretreatment approach, a detailed techno-economical assessment is needed, which will take into account the ethanol yields and the minimum processing cost.

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“…The presence of water hyacinth is becoming dominant nowadays and causes the Rawapening Lake ecosystem to become unbalanced. The Uncontrolled growth of water hyacinth poses a great risk to the aquatic ecosystem in Rawapening Lake (Gichuki et al 2012;Dereje et al 2017;Gaikwad and Gavande 2017;Degaga 2019;Madian et al 2019;Prasetyo et al 2021) which this phenomenon occurs because of eutrophication, a condition of increasing the nutrient content in water especially phosphorus (P) and excessive nitrogen (N) (Clout and Williams 2009; Uwadiae et al 2011;Zan et al 2011;Arthaud et al 2012;Coetzee and Hill 2012;Sood et al 2012;Patel 2012;Chislock et al 2013;Grasset et al 2016;Guignard et al 2017). The uncontrolled growth of water hyacinth will cover the water surface in the lake and block light from entering the lake which causes biota such as fish to experience a lack of oxygen and nutrients, leading to death and population reduction (Bornette and Puijalon 2011;Mironga et al 2011;Güereña et al 2015;Kamau et al 2015;Gupta and Yadav 2020).…”

Section: Introductionmentioning

confidence: 99%

Review: Economic impacts of the invasive species water hyacinth (Eichhornia crassipes): Case study of Rawapening Lake, Central Java, Indonesia

Maulidyna

Alicia

Agustin

et al. 2021

Intl J Bonorowo Wetl

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Abstract. Maulidyna A, Alicia F, Agustin HN, Dewi IR, Nurhidayah I, Dewangga A, Kusumaningrum L, Nugroho GD, Jumari, Setyawan AD. 2019. Review: Economic impacts of the invasive species water hyacinth (Eichhornia crassipes): Case study of Rawapening Lake, Central Java, Indonesia. Intl J Bonorowo Wetlands 11: 18-31. Introduced species is defined as a conscious or unconscious effort to present a species of animal or plant into a new habitat. Introduced species have two pathways on their biogeographical distribution, namely becoming an invasive species or not becoming an invasive species. An introduced species which does not have a negative impact on the new habitat is not classified as an invasive species, while a species that is introduced and does have a negative impact on the new habitat is considered as invasive species. One of the problems that threaten freshwater ecosystems in Indonesia is the invasion of water hyacinth (Eichhornia crassipes). This introduced plant species can reproduce rapidly, both generatively and vegetatively, and form very dense masses in water bodies, such as swamps, lakes, rivers, and channels including in Rawapening Lake in Semarang District, Central Java, Indonesia. This study is aimed to review the economic impacts of the invasive water hyacinth species in Rawapening Lake from two perspectives: the negative and the positive impacts, so that feasible solutions can be developed. There are several negative impacts caused by water hyacinth in Rawapening Lake. The overgrown water hyacinth in the lake hinders the fishermen in maneuvering the boats and fishing gears, reducing the fish catches. The extensive coverage of water hyacinth causes the reduction in soluble oxygen and blocks sunlight into the water, leading to the decline of fish population. The rotten water hyacinth can obstruct the irrigation channels of the fields so that farmers cannot produce maximum rice harvests and eradicating them would incur financial costs. On the other hand, there are also positive impacts of water hyacinth in Rawapening Lake. This plant can be used as raw materials to produce a variety of handicrafts in the form of bags, sandals, baskets, wallets, and furniture such as chairs and tables. Water hyacinth can also be processed in biogas production and organic fertilizers. With careful management, water hyacinth can remediate polluted water caused by heavy metals contamination. In short, economically, the presence of water hyacinth in Rawapening can be both beneficial and detrimental. Proper management of this species is necessary to maintain the sustainability of this aquatic environment. r

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Bioethanol Production from Water Hyacinth Hydrolysate by Candida tropicalis Y-26

Cited by 26 publications

References 28 publications

Optimization of oxalic acid pre-treatment and enzymatic saccharification in Typha latifolia for production of reducing sugar

Optimization of oxalic acid pre-treatment and enzymatic saccharification in Typha latifolia for production of reducing sugar

A Comparative Study of Various Pretreatment Approaches for Bio-Ethanol Production from Willow Sawdust, Using Co-Cultures and Mono-Cultures of Different Yeast Strains

Review: Economic impacts of the invasive species water hyacinth (Eichhornia crassipes): Case study of Rawapening Lake, Central Java, Indonesia

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