Averrhoa Bilimbi Linn c Respiration Study in Passive Modified Atsmosphere Storage
| Main Authors: | Yuniarto, Kurniawan, Lastriyanto, Anang, Muvianto, Cahyo Mustiko Okta, Nurtiti, Nurtiti |
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| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
PERTETA
, 2021
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| Subjects: | |
| Online Access: |
http://journal.ipb.ac.id/index.php/jtep/article/view/33313 http://journal.ipb.ac.id/index.php/jtep/article/view/33313/22158 |
Daftar Isi:
- Passive modified atmosphere storage (P-MAS) is a popular fresh fruits and vegetables storage method. The P-MAS creates naturally gas composition alteration due to aerobic respiration rate during storage which implies to maturity and shelf life. This research studied Averrhoa bilimbii Linn respiration behaviour by applying P-MAS at ambient temperature for 24 hours storage period. The gas composition was measured using typical zirconium and infrared gas sensor to determine oxygen and carbondioxide concentration. Heat and humidity were also logged by modifying SHT10 sensor. Acid titratic and weight loss represented the substrat consumption during respiration. The result investigated fastest respiration rate achieved at about RO2 28,60 ml [O2] kg-1 h-1 and (RCO2) sebesar 56,64 ml [CO2] kg-1 h-1 for an hour storage. The RQ was calculated above 1,0 for all period storage which indicated consumed organic acid material. Titratic acid reduced by 0,03 mg equivalent/100 g and average weigh loss was at about 0,04%. The Averrhoa bilimbi linn was categorized at sour-unripe during 24 hours storahe period and exponantially regression predicted sour-ripe level achieved after 37 hours.
- Penyimpanan bahan pangan pertanian secara modifikasi udara pasif cukup populer sebagai metode penyimpanan buah dan sayur segar. Modifikasi udara pasif menghasilkan komposisi alami udara di dalam ruangan karena adanya aktivitas respirasi aerobik yang berdampak kepada kematangan dan umur simpan. Pengukuran data-data aktivitas respirasi belimbing wuluh secara aerobik dapat digunakan untuk menghitung laju respirasi dan penggunaan substrat. Perubahan metabolisme belimbing wuluh (Averrhoa Bilimbi Linn) setelah panen di ukur aktivitas repirasi aerobiknya di dalam toples kedap udara selama 24 jam menggunakan sensor gas oksigen berbasis zirconium dan infrared. Pelepasan panas dan uap air di rekam menggunakan logger suhu dan kelembaban. Hasil penelitian menunjukkan bahwa kecepatan respirasi paling cepat pada periode 1 jam penyimpanan dengan nilai laju repirasi oksigen (RO2) 28,60 ml [O2] kg-1 jam-1 dan laju respirasi karbondioksida (RCO2) 56,64 ml [CO2] kg-1 jam-1. Nilai respiratory quotient (RQ) diatas 1,0 menunjukkan respirasi menggunakan substrat asam organik. Substrat respirasi terhitung sebagai total asam diperoleh laju rerata konsumsi 0,03 mg equivalen/100 g dan susut bobot rata-rata 0,04%. Hasil uji empiris penyimpanan belimbing wuluh sampai periode 24 jam masuk dalam kategori sour-unripe dan menggunakan regresi eksponansial dapat diperoleh perubahan kematangan belimbing wuluh menjadi kategori sour-ripe akan didapatkan setelah periode penyimpanan mencapai 37 jam.