Gluconic acid: Properties, production methods and applications—An excellent opportunity for agro-industrial by-products and waste bio-valorization

Cañete-Rodríguez, Ana M.; Santos-Dueñas, Inés M.; Jiménez-Hornero, Jorge E.; Ehrenreich, Armin; Liebl, Wolfgang; García-García, Isidoro

doi:10.1016/j.procbio.2016.08.028

Cited by 154 publications

(114 citation statements)

References 133 publications

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“…As gluconic acid is applied in pharmaceuticals and food additives, it is important to secure that Au nanoparticles do not leak from the catalyst upon glucose conversion. Therefore, a heterogeneity test was performed exemplarily for the Au‐C Glucose ‐H catalyst to check for loss of Au nanoparticles from the support.…”

Section: Resultsmentioning

confidence: 99%

“…Gluconic acid is used as a functional additive in food, pharmaceutical products and textiles, and also in building industries. It is currently mainly produced by biotechnological processes (fermentation) . However, gold nanoparticles are a promising alternative for the production of gluconic acid at a comparable reaction rate and high space time yield .…”

Section: Introductionmentioning

confidence: 99%

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Modification of Salt‐Templated Carbon Surface Chemistry for Efficient Oxidation of Glucose with Supported Gold Catalysts

et al. 2018

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Gold nanoparticles dispersed on high‐surface‐area carbon materials were investigated as heterogeneous catalysts for the selective oxidation of d‐glucose to d‐gluconic acid in aqueous solution with molecular oxygen. Salt‐templated porous carbon supports were obtained from different precursors with and without nitrogen and treated under air or hydrogen atmosphere to functionalize the surface with nitrogen, oxygen, or hydrogen. The influence of the surface atomic structure of the carbonaceous supports with similar pore structure on the size and catalytic properties of the metallic nanoparticles was studied at gold nanoparticle loadings of 0.4–0.7 wt %. The functionalisation significantly influences the surface polarity of the support materials and the strength of the interaction with the gold nanoparticles. The surface polarity influences the structure and properties of the catalysts because both the gold deposition and the glucose oxidation reaction take place in the aqueous phase. Rather hydrophilic supports are obtained by doping with oxygen and nitrogen and lead to large gold nanoparticles with low catalytic activity. In contrast, the rather hydrophobic as‐made and hydrogen‐treated supports provide higher catalytic activity (metal time yield up to 1.5 molGlucose molAu−1 s−1) resulting from their smaller gold particles of 3–5 nm in diameter.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modification of Salt‐Templated Carbon Surface Chemistry for Efficient Oxidation of Glucose with Supported Gold Catalysts

et al. 2018

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“…1 The fact that they are listed among the most produced chemicals 2 testifies to their importance. All the products in this list have been the subject to careful study in order to avoid potential risks for humans and the environment, at present, GA and its salts are classified as low-hazard substances.…”

Section: Introductionmentioning

confidence: 99%

“…The production and uses of GA and its salts are described in detail elsewhere. 1,[5][6][7][8][9][10][11] Briefly, these substances are used as ingredients of personal care products, pharmaceuticals, chelating agents (e.g., for calcium in the building industry), industrial cleaners and metal surface treatments 8 as well as stabilizing agents for textile bleachers. 3 Additionally, because of their prebiotic properties, GA and its major derivatives are being used as additives in foods and drinks and are considered as key components in the development of new beverages.…”

Section: Introductionmentioning

confidence: 99%

“…3 Additionally, because of their prebiotic properties, GA and its major derivatives are being used as additives in foods and drinks and are considered as key components in the development of new beverages. 1,[12][13][14] Despite their flexibility and the large amounts used, no potential hazards justifying further investigation of their safety have so far been identified.…”

Section: Introductionmentioning

confidence: 99%

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Biotechnologically relevant features of gluconic acid production by acetic acid bacteria

García-García

Cañete-Rodríguez

Santos-Dueñas

et al. 2017

Acetic Acid Bacteria

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The many uses of gluconic acid and some of its salts are arousing increasing interest in these compounds and in their production levels. Although gluconic acid and gluconates can be obtained chemically, they are currently almost exclusively biotechnologically produced, mostly by fungus based methods. There is, however, an ongoing search for alternative microorganisms to avoid the problems of using fungi for this purpose and to improve the productivity of the process. Especially promising in this respect are acetic acid bacteria, particularly Gluconobacter strains. This paper discusses the main variables and operating conditions to be considered in optimizing gluconic acid production by Gluconobacter.

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Cellular versus Biochemical Control over Microbial Products

Osorio‐González

Hegde

Brar

2018

Microbial Sensing in Fermentation

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Gluconic acid: Properties, production methods and applications—An excellent opportunity for agro-industrial by-products and waste bio-valorization

Cited by 154 publications

References 133 publications

Modification of Salt‐Templated Carbon Surface Chemistry for Efficient Oxidation of Glucose with Supported Gold Catalysts

Modification of Salt‐Templated Carbon Surface Chemistry for Efficient Oxidation of Glucose with Supported Gold Catalysts

Biotechnologically relevant features of gluconic acid production by acetic acid bacteria

Cellular versus Biochemical Control over Microbial Products

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