Fermentative Production of Ethanol from Acid Hydrolyzate of Rice Water Waste Using Saccharomyces cerevisiae: Experimental and Kinetic Studies

On the Optimization of Fermentation Conditions for Enhanced Bioethanol Yields from Starchy Biowaste via Yeast Co-Cultures

“…Waste-rice comprises a considerable part of resultant waste throughout the globe and as such is worth investigating its potential use as fermentative feedstock [26][27][28]. On the other hand, bioethanol, as a main constituent of the current and future bioenergy, is a very important end product that can be generated from the fermentation of various biowastes [2,5,[7][8][9][10][11][12][13][14][15][16]. In this context, the results of the current study clearly demonstrate the feasibility of the transformation of the pretreated waste-rice into ethanol using either monocultures or co-cultures of fermentative yeasts.…”

“…Generally, more severe pretreatment is required for FW with high lignocel-lulosic content, whereas direct hydrolysis can be applied to starchy FW, leading to efficient saccharification. The saccharification of starchy wastes can be achieved either enzymatically [7][8][9] or chemically, mainly via dilute acids such as sulfuric [10,11], phosphoric [12], and hydrochloric [13] facilitated by simultaneous thermal treatment. In general, low temperatures lead to solubilization of starch whereas for its further saccharification temperatures above 90 °C are required.…”

“…Although acid hydrolysis of starchy substrates constitutes a cost-effective and fast method for their saccharification, there are certain drawbacks that must be taken into account during the application of such a process. These include the need for equipment capable of withstanding corrosion and the possible formation of byproducts that are generated during acidic degradation of sugars, such as furfurals, that might have an inhibitory effect on fermentative microorganisms [11]. To avoid the latter the selection of proper conditions and tolerant microorganisms should be made.…”

Investigation of Corrosion Inhibition of Mild Steel in 0.5 M H2SO4 with Lachancea fermentati Inhibitor Extracted from Rotten Grapefruits (Vitis vinifera): Adsorption, Thermodynamic, Electrochemical, and Quantum Chemical Studies

“…As per experimental results, when diverse Lachancea fermentati isolate concentrations were used for 2 h, a prospective IE (%) could be obtained, and finally, it was reduced as a result of Saccharomyces cerevisiae degradation. 50…”

Production and Application of Lignin-Based Chemicals and Materials in the Cellulosic Ethanol Production: An Overview on Lignin Closed-Loop Biorefinery Approaches

“…Conventional strategies for cellulosic ethanol production aim to depolymerize cellulose into glucose, an easily metabolizable molecule, by enzymatic route or chemical route (using inorganic or acid salts) [27,28]. It is noteworthy that several engineered strains can effectively convert pentoses into ethanol [29].…”