Exploring nanoencapsulation of aroma and flavors as new frontier in food technology

Talegaonkar, Sushama; Pandey, Shivendra Kumar; Rai, Nishant; Rawat, Purnima; Sharma, Harshita; Kumari, Nisha

doi:10.1016/b978-0-12-804307-3.00002-8

Cited by 5 publications

(6 citation statements)

References 63 publications

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“…Citronellol is a valuable monoterpenoid compound with distinctive lemon aroma. 56,57 Citral molecule can be converted into geraniol and citronellal via selective hydrogenation reaction. Further hydrogenation of geraniol and citronellal produced citronellol.…”

Section: Synthe S Is Of Fr Ag R An Ce Molecule S Via Chemos Elec Tive Hydrog Enation Re Ac Tionmentioning

confidence: 99%

“…Citral is another important perfumery compound 54 which often utilized as starting material for selective hydrogenation to citronellol and citronellal 55 (Figure 6). Citronellol is a valuable monoterpenoid compound with distinctive lemon aroma 56,57 . Citral molecule can be converted into geraniol and citronellal via selective hydrogenation reaction.…”

Section: Synthesis Of Fragrance Molecules Via Chemoselective Hydrogenation Reactionmentioning

confidence: 99%

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Review on heterogeneous catalysts for the synthesis of perfumery chemicals via isomerization, acetalization and hydrogenation

Hartati

Firda

Bahruji

et al. 2021

Flavour & Fragrance J

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Synthetic fragrance has dominated the perfumery industry in recent decades due to the ability to produce perfumery ingredients on a large scale at a low cost. Extensive research in the field of synthetic perfumery chemical involved the utilization of catalysts to improve the productivity. This review will discuss recent advances of heterogeneous catalysts for the synthesis of perfumery chemicals as fragrance ingredients. Transition from homogeneous to heterogeneous catalysts will be included in order to provide insight into the benefits of heterogeneous catalysts to overcome the limitation of homogeneous reaction. Isomerization, acetalization and hydrogenation were identified as three main reactions for the synthesis of perfumery chemicals based on the number of reported work since 2000. This review will focus on α‐pinene and α‐pinene oxide as the main molecular substrates, however, different molecules, for example, linalool, citronellal and cinnamaldehyde will also be included. The synthesis, modification and possible mechanisms for the reactions involving zeolite, aluminosilicate, metal oxides, metal organic framework, monometallic and bimetallic nanoparticles as heterogeneous catalysts will be discussed. Discussion on isomerization and acetalization reactions will focus on the acidity and the porosity of the catalysts as the two main factors that determine the conversion and selectivity. For perfumery chemicals produced via hydrogenation reaction, the role of monometallic and bimetallic nanoparticles catalysts will be discussed in the chemoselective reduction of cinnamaldehyde and citronellal.

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Section: Synthe S Is Of Fr Ag R An Ce Molecule S Via Chemos Elec Tive Hydrog Enation Re Ac Tionmentioning

confidence: 99%

Section: Synthesis Of Fragrance Molecules Via Chemoselective Hydrogenation Reactionmentioning

confidence: 99%

Review on heterogeneous catalysts for the synthesis of perfumery chemicals via isomerization, acetalization and hydrogenation

Hartati

Firda

Bahruji

et al. 2021

Flavour & Fragrance J

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“…Lee et al mentioned that Eucalyptus essential oil can be inhaled to relieve breathing problems [7]. However, its high volatility and flammability, including its bioactive compounds that are easily damaged (unstable) by air, heat, humidity, and light [8,9], have caused problems in its processing and storage. Encapsulation is a method used to slow the release of bioactive compounds and protect the bioactive compounds (which have particular aromas and flavors) from damage caused by environmental factors.…”

Section: Introductionmentioning

confidence: 99%

“…According to Gupta et al, this method includes polymer-based nanocapsules, nanoemulsion, liposomes, nanocarrier solid lipids, and molecular complexes with-cyclodextrins [11]. Several researchers have developed polymer-based nanocapsules using polymer materials as a wrapper for the aroma and flavor compounds of essential oils, such as polyethylene glycol [10], wax [12,9], gelatin-gum Arabic [13,14], poly-α-cyanoacrylate alkyl esters, polyvinyl alcohol, polylactic acid, and polyglycolic acid [8]. Nanoencapsulation technology using polymer matrix can be applied to obtain products with a slow release mechanism so that the process of releasing volatile compounds becomes more efficient and effective along with increased stability, bioavailability and prolonged sensory perception [4].…”

Section: Introductionmentioning

confidence: 99%

Nano-encapsulation of Eucalyptus citriodora Oil: Preparation and Characterization

Wahyuningsih

Yuliani

Iriani

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Eucalyptus citriodora oil is an essential oil that contains volatile active compounds. To slow down the process of releasing such volatile compounds, a binding agent such as a polymer matrix is needed. This research aimed to prepare and characterize the properties of Eucalyptus citriodora oil encapsulated in polymer matrices. Development of nanoencapsulated Eucalyptus citriodora was prepared using the melt-dispersion method and polymer matrices (PEG-6000 and paraffin wax) with the addition of Mentha piperita oil as aroma enhancer at a ratio of 1:1. The gas chromatography analysis showed that Eucalyptus citriodora oil contains volatile compounds (citronellal 76.17%). The nanoencapsulated eucalyptus powder produced using the PEG-6000 matrix, in terms of properties, was better than that using paraffin for having smaller particle size and being difficult to agglomerate at room temperature. The average size of oil droplets of nanoencapsulated Eucalyptus citriodora in the PEG-6000 matrix was 235.35 nm with a PDI of 0.339. The morphological analysis using a transmission electromagnetic microscope indicated that the average droplet size was less than 100 nm. This product can be used as a breath-relieving aromatherapy powder by wrapping it in porous paper to be inhaled.

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“…In addition, as anisole has become popular as a fluorescence tracer, − the study of its thermal decomposition could help us to access the temperature and time range where it can be used in fluorescence spectroscopy . Anisole and its pyrolysis are also relevant for the food industry − and public health policies related to the flavor use in tobacco and electronic cigarette products. − …”

Section: Introductionmentioning

confidence: 99%

Reaction Mechanisms of Anisole Pyrolysis at Different Temperatures: Experimental and Theoretical Studies

et al. 2021

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Pyrolysis of tar compounds plays an important role in designing optimal thermochemical processes for the conversion of biomass into globally important commodities. Therefore, it is crucial to understand the relevant reaction mechanisms and be able to predict the decomposition products of these compounds at different temperatures. In this study, the pyrolysis of anisole, which serves as an important model compound for lignin, a major component of biomass tar, was studied in a laminar-flow reactor system of N 2 gas at temperatures of 300−650 °C and a residence time of 1 s. The decomposition products were analyzed using a gas chromatograph with mass spectrometric and flame ionization detectors. To gain insights into the reaction mechanisms, detailed studies of the unimolecular and bimolecular decomposition pathways were carried out using the density functional theory and high-level coupled cluster methods. Anisole was found to decompose at temperature as low as 400 °C, which is the lowest reported temperature for anisole decomposition. Formation of benzene and toluene at low temperatures (400−450 °C) is explained by the low-energy barrier ipso-addition of CH 3 and H radicals at the methoxy moiety of anisole. At 500−550 °C, multiple reaction mechanisms lead to the formation of benzofuran, methylcyclopentadiene, benzaldehyde, cyclopentadiene, ethylbenzene, styrene, and o-xylene. Finally, at 600−650 °C, indene, phenol, and cresol were detected. The obtained results are expected to contribute to the development of predictive kinetic models for the decomposition of anisole and other similar compounds.

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Exploring nanoencapsulation of aroma and flavors as new frontier in food technology

Cited by 5 publications

References 63 publications

Review on heterogeneous catalysts for the synthesis of perfumery chemicals via isomerization, acetalization and hydrogenation

Review on heterogeneous catalysts for the synthesis of perfumery chemicals via isomerization, acetalization and hydrogenation

Nano-encapsulation of Eucalyptus citriodora Oil: Preparation and Characterization

Reaction Mechanisms of Anisole Pyrolysis at Different Temperatures: Experimental and Theoretical Studies

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