Euis Julaeha
Departemen Kimia, FMIPA Universitas Padjadjaran, Jatinangor 45363, Sumedang, Jawa Barat, Indonesia.

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Journal : VALENSI

Microencapsulation of Lime Peel Essential Oils (Citrus aurantifolia) with Complex Coacervation Methods using Gelatin/Sodium Alginate Coating Sandra Puspita; Diana Rakhmawaty Eddy; Tatang Wahyudi; Euis Julaeha
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 6, No. 1, May 2020
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v6i1.14618

Abstract

Lime (Citrus aurantifolia) peel essential oils are complex metabolites mainly used as natural preservatives. The principal constituents include d-limonene, β-pinene, and terpineol. Moreover, essential oils (EOs) are potentially known volatile and unstable compounds, hence, they require proper packaging techniques, e.g., microencapsulation. The purpose of this study is to evaluate the binary methods of lime peel essential oils microencapsulation using complex coacervation. This involves the application of gelatin and sodium alginate coatings under two specific conditions, termed core/coating ratio 1:1.2, with modified stirring and core/coating ratio 1:2.0, with stirring speed of 600 rpm, respectively. The results showed the EOs preparation generated 0.70% yield characterized by good quality, fresh aroma, and pale-yellow coloration. Also, microcapsules delivered 37.06% yield, 39.18% oil content, 31.53% encapsulation efficiency (EE), and less smooth-edged SEM surface under condition I. Meanwhile, condition II demonstrated 51.46% yield, 58.66% oil content, 92.04% encapsulation efficiency (EE), and flat-curved, SEM surface. Furthermore, it was carefully observed condition II produced more superior microcapsules
Senyawa Fenolik dari Daun Tanaman Kalanchoe prolifera (Crassulaceae) Yenny Febriani Yun; Lilis Siti Aisyah; Tri Reksa Saputra; Arif Rahman Hakim; Sari Purbaya; Tati Herlina; Euis Julaeha; Achmad Zainuddin; Unang Supratman
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 3, No. 1, Mei 2017
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (582.388 KB) | DOI: 10.15408/jkv.v3i1.5037

Abstract

Phenolic compounds such as kaempferol (1), quercetin (2), and methyl caffeate (3) have been isolated from the ethyl acetate extract of Kalanchoe prolifera (Crassulaceae). The chemical structure of isolated compounds 1-3 were elucidated on the basis of spectroscopic evidence (UV, IR, NMR) and comparison with those compound previouly reported.DOI: http://dx.doi.org/10.15408/jkv.v0i0.5037