Modified atmosphere storage (mas) buah pisang

Healthy life style based on natural food consumption, has been implemented by the society to increase health quality. Minimally processed technology is used to slow down food decay time in the storage room. Minimally processed techology is consist of Controlled Atmosphere Storage (CAS), Modified Atmosphere Storage (MAS), Freeze Driying, and blansir. MAS is food storage technology by conditioning the air composition (especially oxygen level). Banana is an object of MAS implementation, due to its all session fruit and shorter life time. Previous MAS studies used long bean as the object and managed to improve the life time until 15 days.The purpose of this study is to implement MAS to lengthen banana life time. MAS design use Ulrich Eppinger method. Simulation of Turbulance Kinetic Energy (TKE) in the sparger and MAS installation use ANSYS 16.2. The experimental to test sparger and installation is conducted for 6 hours for the sparger and 24 hours for the installation. Afterward the correlation between parameter is calculated by using least square method. The outcome of this research is MAS for banana in order to be used by SME with capacity of 4.77 m3, mixture time is 24 hours, TKE number in the sparger is 582.6448 J/kg, TKE number in the installation is 715.6 J/kg, oxygen level in the sparger is 5.7%, oxygen level in MAS installation is 8.5%, glucose of banana located in the storage room is 9.5%, and banana life time able to achiave 14 days.

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Analisis Variasi Sparger pada Instalasi Modified Atmosphere Storage untuk Menurunkan Kadar O2

Jurnal Teknologi Rekayasa ◽

10.31544/jtera.v2.i1.2017.17-30 ◽

2017 ◽

Vol 2 (1) ◽

pp. 17

Author(s):

I Gede Eka Lesmana ◽

Agri Suwandi ◽

Arnold Raynold

Keyword(s):

Kinetic Energy ◽

Modified Atmosphere Packaging ◽

Least Square ◽

Turbulence Kinetic Energy ◽

Modified Atmosphere ◽

Modified Atmosphere Storage ◽

Atmosphere Storage

Metode pengawetan makanan dengan memodifikasi komposisi udara khususnya untuk kandungan oksigen dan karbondioksida di ruang simpan atau disebut juga dengan Modified Atmosphere Packaging (MAS) telah diterapkan untuk memperpanjang umur simpan dari buah-buhan dan sayuran. Modifikasi komposisi udara dalam ruang simpan MAS menggunakan injector tipe sparger dengan gas karbon dioksida. Kinerja sparger dinilai dari peningkatan jumlah kandungan gas oksigen dalam ruang simpan dan tingkat homogenitas di dalam sparger. Tujuan penelitian ini adalah melakukan pemilihan sparger berdasarkan variasi dimensi sudut keluar terhadap kinerja sparger dengan menggunakan simulasi ANSYS dan uji eksperimental. Lima varian sparger diuji tingkat homogenitas dan kadar oksigen yang terkandung dalam ruang simpan. Hasil simulasi dan eksperimetal untuk kelima sparger menunjukkan sparger varian 3 dengan material PVC dari gabungan dua reducer (diameter 44,4 mm dan 31,7 mm) dan dimensi sudut keluar 26,6° memiliki nilai Turbulance Kinetic Energy (TKE) rata-rata tertinggi yaitu 792,66 J/kg dan kadar oksigen dalam ruang simpan terendah yaitu 6,4%. Model hubungan antara kadar gas karbon dioksida dengan oksigen dibuat dengan menerapkan metode least square menunjukkan tingkat signifikan sebesar 74,17%. Luaran dari penelitian ini adalah sparger varian 3 terpilih sebagai sparger yang akan digunakan dalam MAS karena mampu menurunkan kadar oksigen di bawah 10%. Kata kunci: sparger, Turbulence Kinetic Energy (TKE), Modified Atmosphere Storage (MAS), least square

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