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All Journal Jurnal Kimia dan Kemasan
Riyanto, Arief
Balai Besar Kimia dan Kemasan, Kementerian Perindustrian Jl. Balai Kimia No.1 Pekayon, Pasar Rebo, Jakarta Timur
Chemistry

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Application Of Phase Change Materials (PCM’s) To Preserve The Freshness Of Seafood Products Pudjiastuti, Wiwik; Listyarini, Arie; Riyanto, Arief
Jurnal Kimia dan Kemasan Vol. 37 No. 1 April 2015
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (668.644 KB) | DOI: 10.24817/jkk.v37i1.1813

Abstract

The application of Phase Change Materials (PCMs) as one of latent heat energy storage materials in smart cold system has been investigated for preserving a freshness of seafood products. In this investigation, PCMs was installed on Expanded Polystyrene (EPS) box system as insulated container. The freshness of the seafood product was shown by the time of keeping temperature during storage or distribution. Keeping temperature time of smart cold system using PCMs was compared to conventional cold system using ice cubes. The result shows that EPS box system using PCMs can prolonged the keeping temperature time and reached colder temperature than the conventional one. Microbiology test of products was monitored to prove that products occured no changes in quality.
Isomerisasi Eugenol Menjadi Isoeugenol Dengan Metode Sonikasi Riyanto, Arief; Yunilawati, Retno; Rahmi, Dwinna; Aidha, Novi Nur; Ratnawati, Emmy
Jurnal Kimia dan Kemasan Vol. 37 No. 1 April 2015
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1078.066 KB) | DOI: 10.24817/jkk.v37i1.1810

Abstract

Isoeugenol merupakan senyawa turunan eugenol yang banyak digunakan di industri farmasi, kosmetik, perisa makanan dan minuman. Konversi eugenol menjadi isoeugenol dilakukan melalui reaksi isomerisasi. Isomerisasi eugenol dapat dilakukan secara konvensional dengan pemanasan pada suhu tinggi, namun tidak efisien sehingga dilakukan dengan metode pemanfaatan gelombang mikro yang memerlukan energi cukup besar. Pada penelitian ini dilakukan isomerisasi dengan memanfaatkan gelombang ultrasonik agar dihasilkan metode yang lebih efisien. Isomerisasi berjalan optimal pada kondisi amplitudo 70% dan 40 menit, menggunakan pelarut etanol, dan dengan perbandingan berat katalis RhCl3 terhadap eugenol sebesar 1 : 2000. Pada kondisi tersebut dihasilkan isoeugenol total hampir 100% dengan komposisi cis isoeugenol sekitar 8,23% dan trans isoeugenol sekitar 91,76%. 
Co-Authors Aidha, Novi Nur Listyarini, Arie Pudjiastuti, Wiwik Rahmi, Dwinna Ratnawati, Emmy Yunilawati, Retno