Carotenoids as Colorants

Ribeiro, Bernardo Dias; Oliveira, Raquel Grando de

doi:10.1007/978-3-642-22144-6_172

Cited by 7 publications

(4 citation statements)

References 73 publications

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“…Therefore, the extraction procedure must be determined to gain the highest yield of compounds of interest. Besides, natural pigments extraction with organic solvents generates a large amount of waste (Ribeiro and Olivera, 2013). This suggests that the best solvent and the best sample to solvent ratio are to be used that will minimize the amount of waste.…”

Section: Resultsmentioning

confidence: 99%

The effects of different solvent extraction and pH on the stability of carotenoids and chlorophyll in Cucumis melo L. for potential coating technology

Musa

Taha

Razak

et al. 2018

PRT

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Purpose The purpose of this paper is to evaluate the potential use of natural colorant extracted from fruit flesh and leaves of Cucumis melo L. (C. melo L.) in coating applications. Design/methodology/approach Carotenoids and chlorophylls compounds were extracted from C. melo L. fruit flesh and C. melo L. leaves with the best extraction solvents. Both compounds were tested at various pH for colour stability tests. Then, the most stable pH of both extracts was mixed with 20 per cent poly methyl methacrylate (PMMA) together with tetrahydrofuran and acrylic polyol to form a coating system on glass slides. The coated glass slides were exposed to three different temperatures. The effects of heat on the coated glass slides were evaluated using spectrophotometer at 400-700 nm wavelengths. Findings Results revealed that carotenoids extracted from C. melo L. were less stable to be applied in coating applications since the colour degraded in a very short time; however, the chlorophylls extracted were more stable where the colour retained for longer duration. Originality/value The method of the plant pigment production of C. melo L. with PMMA was a modified method that could give other various applications as natural product based on plant pigments.

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Section: Resultsmentioning

confidence: 99%

The effects of different solvent extraction and pH on the stability of carotenoids and chlorophyll in Cucumis melo L. for potential coating technology

Musa

Taha

Razak

et al. 2018

PRT

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“…Carotenoid loss under heating occurs concomitantly with the formation of isomers and directly depends on the food system, carotenoid type, and applied temperature (Achir et al, 2010;Hwang et al, 2012). During the thermal treatment of trans-␤-carotene, some isomers, such as 9-cis-, 13-cis-, and 15-cis-␤-carotene, are formed (Ribeiro and Oliveira, 2013). Moreover, Tang and Chen (2000) measured the stability of freeze-dried carotenoid powder extracted from carrot pulp during dark storage at 4, 25, and 45 • C and found the presence of isomers.…”

Section: Ncs Stability Under Thermal Treatment In the Darkmentioning

confidence: 99%

Thermal and ultraviolet–visible light stability kinetics of co-nanoencapsulated carotenoids

Silva

Paese

Guterres

et al. 2017

Food and Bioproducts Processing

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Lipid-core nanocapsules loaded with ␤-carotene and ␣-carotene, and lutein (NCs) were produced with monomodal particle size distribution. Their mean diameter was 151.33 ± 5.03 nm (D 4,3) and 180.30 ± 0.70 nm (z-average), zeta potential was −22.63 ± 0.52 mV, and pH was 3.21 ± 0.04. The stability of NCs was studied under different simulated industrial treatments, such as thermal and ultraviolet (UV)-visible light treatment. Regardless of the temperature and incubation time of the samples, higher carotenoids retention (%) was observed in NCs than ethanol extract (EE) (under UV-vis light treatment) and higher carotenoids retention (%) was observed in NCs compared to EE and data already published on the stability of non-encapsulated carotenoids (under thermal treatment). In addition, NCs when exposed to UV-vis light treatment had higher activation energy and lower constant rate (k) than EE. In conclusion, nanoencapsulation offers greater stability to the ␤-carotene, ␣-carotene, and lutein upon exposure to conditions similar to those used in the food processing (heat) and storage (UV-vis light).

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“…Ýòè îøèáêè â USP áûëè â äàëüíåéøåì èñïðàâëåíû [12]. Ñîãëàñíî [10], êàê è â ñîîòâåòñòâèè ñ äðóãèìè ðóêîâîäñòâàìè [17,18], ïðè àíàëèçå b-êàðî-òèíà èñïîëüçóåòñÿ í-ãåêñàí, ò.ê. ñîîòâåòñòâóþùèå çíà-÷åíèÿ l ìàêñ è A 1 1 ñì % äëÿ ðàñòâîðîâ b-êàðîòèíà â ãåêñàíå îïðåäåëåíû â çíà÷èòåëüíî áîëüøåì ÷èñëå ðàáîò è ïî-ýòîìó ÿâëÿþòñÿ îáùåïðèíÿòûìè.…”

Section: ñïåêòðîñêîïèÿ â óô è âèäèìîé îáëàñòèunclassified

“…òàêaeå [50]), õîòÿ â ïîñëåäíåå âðåìÿ âñ¸÷àùå èñïîëüçóåòñÿ ñîðáåíò Ñ 30 [5]. Ïðèìåíÿþòñÿ òàêaeå ñøèòûå (ïîëèìåðíûå) ôàçû Ñ 18 , áîëåå êîðîòêèå êîëîíêè (ñì. [53]), óêîðî÷åííûå êîëîíêè ñ âíóòðåííèì äèàìåòðîì < 4,6 ìì, â òîì ÷èñ-ëå óëüòðà-ÂÝAEÕ êîëîíêè [5].…”

Section: âýAeõunclassified

Современные Методы Анализа Каротиноидов (Обзор)

Финкельштейн¹

2016

Хим.-фарм. ж.

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Â îáçîðå ðàññìîòðåíû ìåòîäû êà÷åñòâåííîãî è êîëè÷åñòâåííîãî îïðåäåëåíèÿ êàðîòè-íîèäîâ, èñïîëüçóåìûå ïðè àíàëèçå ëåêàðñòâåííûõ ñðåäñòâ, áèîëîãè÷åñêè àêòèâíûõ äî-áàâîê è ïèùåâûõ ïðîäóêòîâ. Îáñóaeäàþòñÿ ñïåêòðîôîòîìåòðèÿ â ÓÔ è âèäèìîé îáëàñ-òÿõ ñïåêòðà è õðîìàòðîãðàôè÷åñêèå ìåòîäû -òîíêîñëîéíàÿ (ÒÑÕ), âûñîêîýôôåêòèâíàÿ aeèäêîñòíàÿ (ÂÝAEÕ) è ñâåðõêðèòè÷åñêàÿ ôëþèäíàÿ (ÑÔÕ) õðîìàòîãðàôèÿ. Ïîêàçàíà âàaeíîñòü ïðèìåíåíèÿ â õðîìàòîãðàôèè ãèáðèäíûõ ìåòîäîâ ñ èñïîëüçîâàíèåì ÈÊ-, ßÌÐ-è ìàññ-ñïåêòðîñêîïè÷åñêèõ äåòåêòîðîâ. Âïåðâûå ïðîäåìîíñòðèðîâàíà çàâèñè-ìîñòü ïàðàìåòðîâ õðîìàòîãðàôè÷åñêîãî ðàçäåëåíèÿ êàðîòèíîèäîâ îò ïîëÿðíîñòè (äè-ïîëüíîãî ìîìåíòà) ñîðáàòà â ÒÑÕ, ÂÝAEÕ è ÑÔÕ.

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Carotenoids as Colorants

Cited by 7 publications

References 73 publications

The effects of different solvent extraction and pH on the stability of carotenoids and chlorophyll in Cucumis melo L. for potential coating technology

The effects of different solvent extraction and pH on the stability of carotenoids and chlorophyll in Cucumis melo L. for potential coating technology

Thermal and ultraviolet–visible light stability kinetics of co-nanoencapsulated carotenoids

Современные Методы Анализа Каротиноидов (Обзор)

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