Time-temperature dependent variations in beta-carotene contents in carrot using different spectrophotometric techniques

Ullah, Rahat; Khan, Saranjam; Shah, Attaullah; Ali, Hina; Bilal, Muhammad

doi:10.1088/1555-6611/aaadee

Cited by 11 publications

(9 citation statements)

References 31 publications

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“…The difference in carotenoid content between a blanched freeze-dried carrot and an unblanched freeze-dried carrot was statistically significant (p = 0.005). The impact from thermal processing on carotenoid content was observed by Lee et al [14] and Rahat et al [16]. Among others, Camorani et al [17] noted a positive impact from thermal processing on the carotenoids content, which they attributed to the fact that at a high temperature cell walls were torn; consequently, the colour extraction was more efficient [18].…”

Section: Carotenoids Contentmentioning

confidence: 90%

The Impact of an Inert Gas Atmosphere on the Kinetics of Changes in the Physical and Chemical Properties of Carrot Lyophilisate

Nowak

2019

International Journal of Food Engineering

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The purpose of this study was to analyse the impact of blanching, the atmosphere of nitrogen and storage time on carotenoids content, colour and sorption properties of freeze-dried carrot. The material was stored for up to 16 weeks, in the dark, at room temperature. The colour was measured on the surface and in cross sections. As the storage time increased, there was a continual decrease in the carotenoids content in the carrot packed in atmospheric air. In the carrots packed in the atmosphere of nitrogen, no changes in carotenoid content were observed. The colour parameters correlated with the changes in the carotenoids content. The colour parameters changed on the surface and in cross sections in the same manner. During storage, a significant decrease in sorption properties of freeze-dried carrots was noted after 2 weeks of storage.

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Section: Carotenoids Contentmentioning

confidence: 90%

The Impact of an Inert Gas Atmosphere on the Kinetics of Changes in the Physical and Chemical Properties of Carrot Lyophilisate

Nowak

2019

International Journal of Food Engineering

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“…This filter effectively removes noise without diminishing Raman spectral features. For fluorescence background elimination, 'msbackadj' function is used with 45 each window and step size separation and 3rd degree polynomial [19].…”

Section: Spectra Acquisition and Data Analysismentioning

confidence: 99%

“…In recent years, UV-VIS spectrophotometric technique and Raman spectroscopy has been used in identifying carotenoids contents in numerous foods [17][18][19]. UV-VIS is particularly useful in distinguishing as well as identifying carotenoids in agricultural products quantitatively due to their conjugated double absorption bands in the range from 400 to 500 nm.…”

Section: Introductionmentioning

confidence: 99%

“…Raman spectroscopy is also gaining interest among researchers in understanding biological samples on molecular level. This technique is being constantly applied for identifying carotene contents in various foods [19,20]. Similarly, the scientific community is trying to establish it as an early diagnostic tool in various diseases as well [21,22].…”

Section: Introductionmentioning

confidence: 99%

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Comparison among different postharvest ripening treatments based on carotene contents in mango using UV–VIS and Raman spectroscopy

et al. 2019

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The overall purpose of this research work is to investigate carotenoids content using spectrophotometric data of two famous cultivars of Pakistani mangoes (Ratol and Chaunsa) under different postharvest ripening treatments. The UV-VIS absorption results of these cultivars show absorption at wavelength positions 425, 446 and 467 nm which correspond to carotenoids specifically to β-carotene. In fruits and particularly in mangoes, synthesis of β-carotene is correlated with the ripening. Overall, every treatment has shown ripening of mango, but the concentration of β-carotene based on UV-VIS absorption intensity varies with treatment as well as with cultivars. Apart from trace elements (calcium arsenide and calcium phosphide) which are injurious to human health, these results show that in both cultivars, the synthesis of β-carotene is maximum when mangoes are ripened with calcium carbide. Additionally, these results also depict the difference in the content of these important pigments more than twice in Ratol cultivar when compared with Chaunsa. Agreeing with the results of UV-VIS absorption, Raman spectroscopy also shows comparable variations in β-carotene content for both mango cultivars. The Raman spectra of pulp, under different postharvest treatments, depict β-carotene specific characteristic peaks at 1003, 1150 and 1515 cm −1 . In order to educate consumers regarding good quality foods, future study with more attention focused on studying the concentration of β-carotene in other varieties is also desirable.

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“…This configuration allows the molecules to present a dramatic third-order optical nonlinearity upon the introduction of an electron-withdrawing group at one end of the polyene, which implies that the π-conjugated molecules have great potential for future applications in photonics, as ultrafast processing information optical devices [8,11]. The main problem for these novel applications is related to the βC degradation under ambient conditions, and because its trans-to-cis isomerization occurs under illumination or due to a temperature increase [12,13]. Then, before to think using the βC in the design of technological devices or for biomedical applications, it is of great importance protecting the βC from thermal and ambient degradation.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of β-carotene embedded in a silica matrix and study of its physical properties

Martı́nez

Espericueta²,

Guerrero-Serrano

et al. 2020

Mater. Res. Express

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This work reports on the behavior of β-carotene within a silica matrix prepared by the sol-gel method. Results show that highly pure β-carotene integrates with the silica to form a silica-based composite. The interaction exhibited between the inorganic matrix and the β-carotene results in a π-d conjugated system that guarantees the development of the protective mechanism of the β-carotene and stabilizes the organic molecule, allowing its preservation at high calcination temperature. The spectroscopic analysis, made through fluorescence emission and infrared spectroscopy, shows the presence of βcarotene within the silica matrix after the composite was calcined at 1000°C. Furthermore, the structural interactions of the β-carotene with the silica and the protective function of the β-carotene change the crystallization route naturally followed by the silica when exposed to increasing temperature. In this case, the amorphous silica matrix is preserved after high-temperature calcination, which is beneficial for biomedical applications as it allows the release and transport of the β-carotene to take full advantage of its health benefits.

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Time-temperature dependent variations in beta-carotene contents in carrot using different spectrophotometric techniques

Cited by 11 publications

References 31 publications

The Impact of an Inert Gas Atmosphere on the Kinetics of Changes in the Physical and Chemical Properties of Carrot Lyophilisate

The Impact of an Inert Gas Atmosphere on the Kinetics of Changes in the Physical and Chemical Properties of Carrot Lyophilisate

Comparison among different postharvest ripening treatments based on carotene contents in mango using UV–VIS and Raman spectroscopy

Stabilization of β-carotene embedded in a silica matrix and study of its physical properties

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