Bioethanol: New opportunities for an ancient product

Liu, Chenguang; Li, Kai; Wen, Yumei; Geng, Bo-Yu; Liu, Qian; Lin, Yen‐Han

doi:10.1016/bs.aibe.2018.12.002

Cited by 28 publications

(8 citation statements)

References 110 publications

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“…This result is in accordance with the study of Vohra et al [32] in which the fermentation temperature for food waste for bioethanol production is in the range of 30-37 o C. This is because the microorganism will becomes more active when warm and dies at high temperature. Liu et al [33] also mentioned that yeast cells cannot survive higher temperatures more than 36 o C. Thus, lower bioethanol production was observed at temperature of 40 o C and 50 o C as the yeast cells experience denaturation at high temperature.…”

Section: Effect Of Temperaturementioning

confidence: 99%

Preliminary Study on Biethanol Production from Starchy Foodwastes by Immobilized Saccharomyces cerevisiae

Abdulla

Matam²,

Derman³

et al. 2022

J. Phys.: Conf. Ser.

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Dumping of food wastes into the landfill resulted in major environmental pollution. However, attempted had been made to develop these wastes into a new renewable and sustainable energy. Liquid biofuels, bioethanol can be produced from a variety of feedstock including biomass and food crops or wastes. Therefore, in this study, starchy food wastes of bread, rice and potatoes were utilized as a potential feedstock for the bioethanol production. Yeast Saccharomyces cerevisiae was immobilized in 2% calcium alginate beads using entrapment technique. Then, the effect of temperature on bioethanol efficiency was investigated using the immobilized yeasts. From the result, highest fermentation efficiency of 1.24% was obtained at temperature 30°C, 48 h with agitation speed of 150 rpm. However, further research and studies are required in order to optimize the bioethanol production from fermentation process of starchy foodwastes.

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Section: Effect Of Temperaturementioning

confidence: 99%

Preliminary Study on Biethanol Production from Starchy Foodwastes by Immobilized Saccharomyces cerevisiae

Abdulla

Matam²,

Derman³

et al. 2022

J. Phys.: Conf. Ser.

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“…Studies have shown that dilute sulfuric acid is often the most effective and economical choice for pretreating various LBs [45]. However, research on organic acids, surfactants, and targeted pretreatments of specific LB components holds promise for further improvements in efficiency and sustainability [45,46]. Acid pretreatment plays a crucial role in unlocking the potential of LBs for biofuel production.…”

Section: Acid Pretreatmentmentioning

confidence: 99%

Advanced Lignin Valorization for Biorefinery Application

Jalu Nusantara Putra,

Kahar,

Ogino

et al. 2024

Advanced Lignin Technologies

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Despite concerns about diminishing fossil fuels and the imperative for renewable alternatives, lignin, Earth’s most abundant aromatic biopolymer, remains largely underutilized. This chapter explores the immense potential of lignin biorefinery to address energy demands, promote economic growth, and adhere to sustainable development principles. However, intricate structure, harsh odor, and toxicity hinder its valorization. To address these issues, examining emerging biochemical strategies, including thermochemical and enzymatic depolymerization and physical techniques, have emerged as promising avenues for converting lignin into valuable biofuels and chemical compounds. By highlighting innovative approaches and technologies, it emphasizes the pivotal role of lignin in driving biorefineries toward low-emission processes, yielding a diverse spectrum of bio-products. This chapter aims to contribute to the ongoing discourse on sustainable and eco-friendly biorefinery practices of lignin valorization.

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“…In many countries, bioethanol is produced as an ingredient for beauty and cosmetics products, pharmaceuticals, beverages, food, and as an oxygenated additive of gasoline [36,37]. Based on the requirements for health care, the use of this type of alcohol will be a viable alternative in different pharmaceutical applications, such as hydrogels or creams for sanitization [24,38].…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of a Hand Rub Gel Produced with Artisan Alcohol (Puntas), Silver Nanoparticles, and Saponins from Quinoa

Analuiza,

Paredes,

Lascano

et al. 2024

Gels

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The emergence of the global pandemic (COVID-19) has directed global attention towards the importance of hygiene as the primary defense against various infections. In this sense, one of the frequent recommendations of the World Health Organization (WHO) is regular hand washing and the use of alcohol-based hand sanitizers. Ethanol is the most widely used alcohol due to its effectiveness in eliminating pathogens, ease of use, and widespread production. However, artisanal alcohol, generally used as a spirit drink, could be a viable alternative for developing sanitizing gels. In this study, the use of alcohol “Puntas”, silver nanoparticles, and saponins from quinoa was evaluated to produce hand sanitizer gels. The rheological, physicochemical, and antimicrobial properties were evaluated. In the previous assays, the formulations were adjusted to be similar in visual viscosity to the control gel. A clear decrease in the apparent viscosity was observed with increasing shear rate, and an inversely proportional relationship was observed with the amount of ethyl alcohol used in the formulations. The flow behavior index (n) values reflected a pseudoplastic behavior. Oscillatory dynamic tests were performed to analyze the viscoelastic behavior of gels. A decrease in storage modulus (G′) and an increase in loss modulus (G″) as a function of the angular velocity (ω) was observed. The evaluation of pH showed that the gels complied with the requirements to be in contact with the skin of the people, and the textural parameters showed that the control gel was the hardest. The use of artisan alcohol could be an excellent alternative to produce sanitizer gel and contribute to the requirements of the population.

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Bioethanol: New opportunities for an ancient product

Cited by 28 publications

References 110 publications

Preliminary Study on Biethanol Production from Starchy Foodwastes by Immobilized Saccharomyces cerevisiae

Preliminary Study on Biethanol Production from Starchy Foodwastes by Immobilized Saccharomyces cerevisiae

Advanced Lignin Valorization for Biorefinery Application

Development and Characterization of a Hand Rub Gel Produced with Artisan Alcohol (Puntas), Silver Nanoparticles, and Saponins from Quinoa

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