Value-Added Biotechnological Products from Organic Wastes

Stabnikova, Оlena; Wang, Jing‐Yuan; Ivanov, Volodymyr

doi:10.1007/978-1-60327-140-0_8

Cited by 21 publications

(8 citation statements)

References 190 publications

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“…Due to the presence of inhibitors such as limonene, the fermentation of these hydrolysates by the yeast Saccharomyces cerevisiae did not give interesting results (53, 54, 70, 98, 105). After removal by filtration, the yeast was shown to ferment well only hexoses such as glucose, fructose and galactose released by enzymatic hydrolysis of the polysaccharides contained in the peel (22), but not pentoses (arabinose and xylose) or galacturonic acid (96). …”

Section: Bioproduction Of Citric Acid From Industrial By-productsmentioning

confidence: 99%

Biotechnological production of citric acid

Max

Salgado

Rodríguez

et al. 2010

Braz. J. Microbiol.

231

142

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This work provides a review about the biotechnological production of citric acid starting from the physicochemical properties and industrial applications, mainly in the food and pharmaceutical sectors. Several factors affecting citric acid fermentation are discussed, including carbon source, nitrogen and phosphate limitations, pH of culture medium, aeration, trace elements and morphology of the fungus. Special attention is paid to the fundamentals of biochemistry and accumulation of citric acid. Technologies employed at industrial scale such as surface or submerged cultures, mainly employing Aspergillus niger, and processes carried out with Yarrowia lipolytica, as well as the technology for recovering the product are also described. Finally, this review summarizes the use of orange peels and other by-products as feedstocks for the bioproduction of citric acid.

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Section: Bioproduction Of Citric Acid From Industrial By-productsmentioning

confidence: 99%

Biotechnological production of citric acid

Max

Salgado

Rodríguez

et al. 2010

Braz. J. Microbiol.

231

142

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“…Another co-precipitation can be as ammonium jarosite (NH 4 )Fe 3 (SO 4 ) 2 (OH) 6 but according to the literature data it can be done at low pH. Co-precipitation of ammonia with negatively charged Fe(III) hydroxides formed by iron-oxidizing bacteria was proposed for recovery of ammonia in aerobic treatment of wastewater [23,24]. Reject water, which is the liquid fraction produced after dewatering of anaerobically digested activated sludge on the municipal wastewater treatment plants (MWWTPs), contributes up to 80% of the nitrogen and phosphorus loads to the MWWTP.…”

Section: Application Of Bioirontech Process For Removal Of Ammonum Frmentioning

confidence: 99%

Wastewater engineering applications of BioIronTech process based on the biogeochemical cycle of iron bioreduction and (bio)oxidation

Ivanov¹,

Stabnikov²,

Guo³

et al. 2014

AIMS Environmental Science

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Bioreduction of Fe(III) and biooxidation of Fe(II) can be used in wastewater engineering as an innovative biotechnology BioIronTech, which is protected for commercial applications by US patent 7393452 and Singapore patent 106658 "Compositions and methods for the treatment of wastewater and other waste". The BioIronTech process comprises the following steps: 1) anoxic bacterial reduction of Fe(III), for example in iron ore powder; 2) surface renovation of iron ore particles due to the formation of dissolved Fe 2+ ions; 3) precipitation of insoluble ferrous salts of inorganic anions (phosphate) or organic anions (phenols and organic acids); 4) (bio)oxidation of ferrous compunds with the formation of negatively, positively, or neutrally charged ferric hydroxides, which are good adsorbents of many pollutants; 5) disposal or thermal regeration of ferric (hydr)oxide. Different organic substances can be used as electron donors in bioreduction of Fe(III). Ferrous ions and fresh ferrous or ferric hydroxides that are produced after iron bioreduction and (bio)oxidation adsorb and precipitate diferent negatively charged molecules, for example chlorinated compounds of sucralose production wastewater or other halogenated organics, as well as phenols, organic acids, phosphate, and sulphide. Reject water (return liquor) from the stage of sewage sludge dewatering on municipal wastewater treatment plants represents from 10 to 50% of phosphorus load when being recycled to the aeration tank. BioIronTech process can remove/recover more than 90% of phosphorous from this reject water thus replacing the conventional process of phosphate precipitation by ferric/ferrous salts, which are 20-100 times more expensive than iron ore, which is AIMS Environmental ScienceVolume 1, Issue 2, 53-66.used in BioIronTech process. BioIronTech process can remarkably improve the aerobic and anaerobic treatments of municipal and industrial wastewaters, especially anaerobic digestion of lipidand sulphate-containing food-processing wastewater. It can also remove the recalcitrant compounds from industrial wastewater, enhance sustainability and quality of water resources,restore eutrophicated lakes due to removal of phosphate, ammonium, and pesticides from water, and recover ammonium and phosphate from municipal and food-processing wastes.

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“…Among 5-8% of pectin from olive pomace have suitable emulsifying properties for commercial uses and also possess antioxidant and functional properties for its high dietary fiber levels. Carrot pomace and carrot peel, resulting from juice production, are vegetable wastes that possess approximately 22-25% of the total dietary fiber (29.6%) [60]. Pectin from carrot peels displays a very high level of linearity, a lower DM, and a better solubility than pectin extracted from carrot pomace [54] what makes it especially interesting for gelling mechanisms.…”

Section: Nonconventional Sourcesmentioning

confidence: 99%

Pectin - Extraction, Purification, Characterization and Applications

Robledo¹,

Vázquez²

2020

Pectins - Extraction, Purification, Characterization and Applications

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Fruits, vegetables, and other plant-based foods are particularly important as they are source of dietary carbohydrates, and therefore much of the energy in the adult diet. Plant food also contains a wide range of dietary components rich in bioactive phytochemicals and is essential to the human body that may provide desirable health benefits beyond basic nutrition. Pectin is one of the nonstarch polysaccharides (NSPs), which constitutes the major fraction of the plant cell wall in association and/or substituted with other polysaccharides, and they cover a great variety of biological functions and chemical structures. Generally, pectin is isolated from by-products of agro-foods using extraction technologies with the emergence of novel and effective techniques that inclined toward a cleaner process. Pectin is widely used both in food sector (as gelling, thickening, and stabilizer agent) and in pharmaceutical industries (bioactive components) including biomedical application (drug delivery, tissue engineering, and wound healing) as innovative applications.

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Value-Added Biotechnological Products from Organic Wastes

Cited by 21 publications

References 190 publications

Biotechnological production of citric acid

Biotechnological production of citric acid

Wastewater engineering applications of BioIronTech process based on the biogeochemical cycle of iron bioreduction and (bio)oxidation

Pectin - Extraction, Purification, Characterization and Applications

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