Mulyadi, Naomi M and Widyaningsih, Tri D. and Wijayanti, Novita and Indrawati, Renny and Heriyanto, Heriyanto and Limantara, Leenawaty (2017) Microencapsulation of Kabocha Pumpkin Carotenoids. International Journal of Chemical, 8 (6). pp. 381-386.
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Abstract
Kabocha pumpkin (Curcubita maxima [Duchesne ex Lamb.]) is a potential source of carotenoids. However, the usage of carotenoids is limited due to their instability and also their susceptible degradation against harmful conditions such as base and acidic conditions, oxidation, and illumination. In this study, kabocha carotenoids were incorporated into microencapsulation containing chitosan, sodium alginate and sodium tripolyphosphate. The objective of this study is to determine the formulation of coating agents, carotenoid stability in acidic conditions for mimicking the microencapsulation process, and to characterize the microencapsulated carotenoids including the determination of the efficiency of carotenoid incorporation into microencapsulates. A mixture of sodium alginate, chitosan and sodium tripolyphosphate (0.19 g : 1.92 g : 0.24 g, w/w/w) was the best of coating agents according to the physical characteristics and also its moisture content. Microcapsules obtained with and without addition of carotenoids were determined to be a microparticle size by SEM analysis. The products of microencapsulated carotenoids have the water content of around 5.4% to 7.1%. The highest efficiency of microencapsulation obtained was 91% at the carotenoid concentration of 117.98 μg ∙ g−1 (0.5 %, w/v), although the efficiency was decreased with increasing carotenoids added to the microcapsules probably due to over loading of carotenoids used. The pattern of this efficiency was in line with L* and °hue values, whereas not only a*, b*, and chroma values, but total carotenoids, and total provitamin A also increased
| Item Type: | Artikel |
|---|---|
| Uncontrolled Keywords: | Index Terms—Carotenoids, emulsion, kabocha (Curcubita maxima [Duchesne ex Lamb.]), microencapsulation, pumpkin. |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Fakultas Teknologi dan Desain > Teknik Sipil |
| Depositing User: | Admin Repository |
| Date Deposited: | 17 Apr 2020 15:52 |
| Last Modified: | 02 Jun 2022 06:24 |
| URI: | http://eprints.upj.ac.id/id/eprint/104 |
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