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Enhanced microencapsulation of C-phycocyanin from Arthrospira by freeze-drying with different wall materials

Research background. C-phycocyanin (C-PC), a water-soluble blue pigment, was extracted from microalgae Arthrospira sp. C-PC could be a good substitute for synthetic pigments with high antioxidant activity. However, C-PC is unstable due to sensitivity to temperature, light, pH and oxygen; therefore,...

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Permalink: http://skupnikatalog.nsk.hr/Record/nsk.NSK01001116123/Details
Matična publikacija: Food technology and biotechnology (Online)
58 (2020), 4 ; str. 423-432
Glavni autori: Pan-utai, Wanida (Author), Iamtham, Siriluck
Vrsta građe: e-članak
Jezik: eng
Predmet:
Mikroalge > Arthrospira > C-fikocijanin > Mikroinkapsulacija > Sušenje zamrzavanjem > Antioksidacijska svojstva
Online pristup: https://doi.org/10.17113/ftb.58.04.20.6622
Food technology and biotechnology (Online)
Hrčak
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024 7 |2 doi  |a 10.17113/ftb.58.04.20.6622 
035 |a (HR-ZaNSK)001116123 
040 |a HR-ZaNSK  |b hrv  |c HR-ZaNSK  |e ppiak 
041 0 |a eng  |b hrv  |b eng 
042 |a croatica 
044 |a ci  |c hr 
080 1 |a 663  |2 2011 
100 1 |a Pan-utai, Wanida  |4 aut  |9 HR-ZaNSK 
245 1 0 |a Enhanced microencapsulation of C-phycocyanin from Arthrospira by freeze-drying with different wall materials  |h [Elektronička građa] /  |c Wanida Pan-utai, Siriluck Iamtham. 
300 |b Ilustr., graf. prikazi. 
504 |a Bibliografija: 52 jed. 
504 |a Summary ; Sažetak. 
520 |a Research background. C-phycocyanin (C-PC), a water-soluble blue pigment, was extracted from microalgae Arthrospira sp. C-PC could be a good substitute for synthetic pigments with high antioxidant activity. However, C-PC is unstable due to sensitivity to temperature, light, pH and oxygen; therefore, applications of C-PC in food and other products are limited. Microencapsulation of C-PC using freeze-drying is a solution to this problem and is considered a suitable method for drying the heat-sensitive pigment. Experimental approach. C-phycocyanin was extracted from Arthrospira platensis. C-PC microcapsules were modified by freeze-drying, with maltodextrin and gum Arabic used as microencapsulation wall materials at different fractions from 0 to 100 %. The physical properties including moisture content and water activity, solubility, hygroscopicity, bulk density, colour appearance, particle morphology and size distribution of the produced powders were evaluated. Thermal stability and antioxidant activity of freeze-dried microencapsulated C-PC powders were also assessed. Results and conclusions. Freeze-dried microencapsulated C-PC powders with maltodextrin and gum Arabic as wall materials gave high encapsulation efficiency of around 99 %. At higher gum Arabic mass fraction, moisture content decreased and water activity improved. Maltodextrin gave higher solubility of C-PC powders whereas gum Arabic led to a similar colour of C-PC to those without microencapsulation. Freeze dried microencapsulated C-PC powders were composed of different sized microparticles regardless of the combination of wall materials with amorphous glassy shapes. Thermal stability of encapsulated C-PC increased and also showed high antioxidant properties. Novelty and scientific contribution. This study demonstrates that the freeze-dried microencapsulated C-PC powders have pigment stability with antioxidant properties and are resistant to high temperatures. 
520 |a Pozadina istraživanja. C-fikocijanin, plavi pigment topljiv u vodi, izoliran je iz mikroalge Arthrospira sp. Taj se pigment može upotrijebiti kao dobra zamjena za sintetičke pigmente, a ima i izraženu antioksidacijsku aktivnost. Međutim, njegova je primjena u prehrambenim i ostalim proizvodima limitirana, jer je nestabilan pri povišenoj temperaturi, na svjetlosti, pri promjeni pH-vrijednosti i izloženosti kisiku. Moguće rješenje tog problema je mikroinkapsulacija C-fikocijanina postupkom sušenja zamrzavanjem, metodom prikladnom za sušenje pigmenata osjetljivih na toplinu. Eksperimentalni pristup. C-fikocijanin je izoliran iz mikroalge Arthrospira platensis. Mikrokapsule koje su sadržavale C-fikocijanin modificirane su postupkom sušenja zamrzavanjem, s dodatkom različitih udjela inkapsulacijskog materijala, maltodekstrina i gume arabike, u rasponu od 0 do 100 %. Ispitana su fizikalna svojstva dobivenog praha, uključujući udjel vlage, aktivitet vode, topljivost, higroskopnost, nasipnu gustoću, boju, morfologiju čestica i raspodjelu veličine čestica. Osim toga, procijenjeni su njegova toplinska stabilnost i antioksidacijska aktivnost. Rezultati i zaključci. Učinkovitost mikroinkapsulacije praha C-fikocijanina dobivenog sušenjem zamrzavanjem uz dodatak maltodekstrina i gume arabike bila je oko 99 %. Pri većim masenim udjelima gume arabike smanjio se udjel vlage, a povećala aktivnost vode. Dodatkom maltodekstrina dobiven je prah C-fikocijanina veće topljivosti, dok je dodatkom gume arabike boja praha ostala slična onoj prije mikroinkapsulacije. Bez obzira na sastav materijala za inkapsulaciju, mikroinkapsulirani prahovi dobiveni sušenjem zamrzavanjem sadržavali su čestice različitih veličina i amorfne strukture. Toplinska se stabilnost inkapsuliranog C-fikocijanina povećala, a mikrokapsule su imale i izražen antioksidacijski učinak. Novina i znanstveni doprinos. 
653 0 |a Mikroalge  |a Arthrospira  |a C-fikocijanin  |a Mikroinkapsulacija  |a Sušenje zamrzavanjem  |a Antioksidacijska svojstva 
700 1 |a Iamtham, Siriluck  |4 aut  |9 HR-ZaNSK 
773 0 |t Food technology and biotechnology (Online)  |x 1334-2606  |g 58 (2020), 4 ; str. 423-432  |w nsk.(HR-ZaNSK)000484955 
981 |b Be2021  |b B01/21 
998 |b dalo2112 
856 4 0 |u https://doi.org/10.17113/ftb.58.04.20.6622 
856 4 0 |u https://www.ftb.com.hr/images/pdfarticles/2020/October-December/FTB-58-423.pdf  |y Food technology and biotechnology (Online) 
856 4 0 |u https://hrcak.srce.hr/251259  |y Hrčak 
856 4 1 |y Digitalna.nsk.hr 

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