Citrus waste as feedstock for bio-based products recovery: Review on limonene case study and energy valorization

Negro, Viviana; Mancini, Giuseppe; Ruggeri, Bernardo; Fino, Debora

doi:10.1016/j.biortech.2016.05.006

Cited by 202 publications

(144 citation statements)

References 60 publications

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“…The catalytic system 3 /TBHP was further explored for the epoxidation of the biorenewable olefins methyl oleate (Ole), methyl linoleate (LinOle), and ( R )‐(+)‐limonene (Lim) at 70 °C (Scheme , Table ). Lim is a terpenic olefin obtained from citrus oils . Its epoxide products, 1,2‐epoxy‐ p ‐menth‐8‐ene (LimOx) and 1,2:8,9‐diepoxy‐ p ‐menthane (LimDiOx), have commercial importance for the production of paints, protective coatings, and resins, for example, and can be used as intermediates in the synthesis of flavors, fragrances, agrochemicals, biodegradable polymers, and therapeutically active compounds, amongst others , .…”

Section: Resultsmentioning

confidence: 99%

Chemistry and Catalytic Performance of Pyridyl‐Benzimidazole Oxidomolybdenum(VI) Compounds in (Bio)Olefin Epoxidation

et al. 2017

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The chemistry and catalytic performance of the dichlorido complex [MoO2Cl2(pbim)] (1) [pbim = 2‐(2‐pyridyl)‐benzimidazole] in the epoxidation of olefins is reported. Complex 1 acts as a precatalyst and is more effective with tert‐butylhydroperoxide (TBHP) as the oxidant than with aq. hydrogen peroxide: the cis‐cyclooctene (Cy) reaction with TBHP gave 98 % epoxide yield at 70 °C/24 h. Catalyst characterization showed that 1 is transformed in situ to the oxidodiperoxido complex [MoO(O2)2(pbim)] (2), with H2O2 and a hybrid molybdenum(VI) oxide solid formulated as [MoO3(pbim)] (3) with TBHP. The hybrid material 3 was prepared on a larger scale and explored for the epoxidation of the biorenewable olefins methyl oleate, methyl linoleate, and (R)‐(+)‐limonene. With TBHP as the oxidant, 3 acts as a source of soluble active species of the type 2. A practical method for recycling oxidodiperoxidomolybdenum(VI) catalysts for the Cy/TBHP reaction is demonstrated by using an ionic liquid as the solvent for the molecular catalyst 2.

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Section: Resultsmentioning

confidence: 99%

Chemistry and Catalytic Performance of Pyridyl‐Benzimidazole Oxidomolybdenum(VI) Compounds in (Bio)Olefin Epoxidation

et al. 2017

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“…[159] Coates and co-workersw ere the first to use limonene monoxide for the preparation of polymers by alternating copolymerization with CO 2 . [159] Coates and co-workersw ere the first to use limonene monoxide for the preparation of polymers by alternating copolymerization with CO 2 .…”

Section: Internalbiscarbonates and Other Biscarbonatesmentioning

confidence: 99%

“…Limonene is an unsaturated terpenet hat is availableo narelatively large scale as renewable product extractedf rom nonedible peel wastes. [159] Coates and co-workersw ere the first to use limonene monoxide for the preparation of polymers by alternating copolymerization with CO 2 . [160] several works on this subjecth ave recently appeared.…”

Section: Internalbiscarbonates and Other Biscarbonatesmentioning

confidence: 99%

Polymers Based on Cyclic Carbonates as Trait d'Union Between Polymer Chemistry and Sustainable CO₂ Utilization

et al. 2019

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Given the large amount of anthropogenic CO2 emissions, it is advantageous to use CO2 as feedstock for the fabrication of everyday products, such as fuels and materials. An attractive way to use CO2 in the synthesis of polymers is by the formation of five‐membered cyclic organic carbonate monomers (5CCs). The sustainability of this synthetic approach is increased by using scaffolds prepared from renewable resources. Indeed, recent years have seen the rise of various types of carbonate syntheses and applications. 5CC monomers are often polymerized with diamines to yield polyhydroxyurethanes (PHU). Foams are developed from this type of polymers; moreover, the additional hydroxyl groups in PHU, absent in classical polyurethanes, lead to coatings with excellent adhesive properties. Furthermore, carbonate groups in polymers offer the possibility of post‐functionalization, such as curing reactions under mild conditions. Finally, the polarity of carbonate groups is remarkably high, so polymers with carbonates side‐chains can be used as polymer electrolytes in batteries or as conductive membranes. The target of this Review is to highlight the multiple opportunities offered by polymers prepared from and/or containing 5CCs. Firstly, the preparation of several classes of 5CCs is discussed with special focus on the sustainability of the synthetic routes. Thereafter, specific classes of polymers are discussed for which the use and/or presence of carbonate moieties is crucial to impart the targeted properties (foams, adhesives, polymers for energy applications, and other functional materials).

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“…These bioactive compounds comprise approximately 0.1-0.5% of citrus peel dry weight. The major carotenoids available in citrus are α-and β-carotene, lutein, zeaxanthin and β-cryptoxanthin, which are known to be responsible for a wide range of functional properties, mainly offering protection against the reactive oxygen species damaging actions at the cellular level [64,[82][83][84]]. …”

Section: Carotenoidsmentioning

confidence: 99%

Food Wastes as Valuable Sources of Bioactive Molecules

Socaci¹,

Fărcaș²,

Vodnar³

et al. 2017

Superfood and Functional Food - The Development of Superfoods and Their Roles as Medicine

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Food industry produces worldwide millions of tons of plant-derived wastes which can be exploited as sources of high-value components: proteins, fibres, polysaccharides, flavour compounds or different phytochemicals. These bioactive compounds can be valorised as functional ingredients in food, pharmaceutical, health care, cosmetic and other products. Using the recovered bioactive molecules as functional ingredients represents a sustainable alternative of food wastes exploitation as inexpensive source of valuable compounds, while developing innovative food and non-food products with health-promoting benefits and at the same time contributing to an efficient waste reduction management. This chapter gives an overview of the main classes of bioactive compounds recovered from food wastes and their potential applications as functional chemicals, without being exhaustive.

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Citrus waste as feedstock for bio-based products recovery: Review on limonene case study and energy valorization

Cited by 202 publications

References 60 publications

Chemistry and Catalytic Performance of Pyridyl‐Benzimidazole Oxidomolybdenum(VI) Compounds in (Bio)Olefin Epoxidation

Chemistry and Catalytic Performance of Pyridyl‐Benzimidazole Oxidomolybdenum(VI) Compounds in (Bio)Olefin Epoxidation

Polymers Based on Cyclic Carbonates as Trait d'Union Between Polymer Chemistry and Sustainable CO₂ Utilization

Food Wastes as Valuable Sources of Bioactive Molecules

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Citrus waste as feedstock for bio-based products recovery: Review on limonene case study and energy valorization

Cited by 202 publications

References 60 publications

Chemistry and Catalytic Performance of Pyridyl‐Benzimidazole Oxidomolybdenum(VI) Compounds in (Bio)Olefin Epoxidation

Chemistry and Catalytic Performance of Pyridyl‐Benzimidazole Oxidomolybdenum(VI) Compounds in (Bio)Olefin Epoxidation

Polymers Based on Cyclic Carbonates as Trait d'Union Between Polymer Chemistry and Sustainable CO2 Utilization

Food Wastes as Valuable Sources of Bioactive Molecules

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Polymers Based on Cyclic Carbonates as Trait d'Union Between Polymer Chemistry and Sustainable CO₂ Utilization