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Influence of CO2 and C2H4 adsorbents to the Symptoms of Internal Browning on the Packaged ‘Silver Bell’ Pear (Pyrus communis L.)

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After harvesting, pears undergo numerous biochemical processes and frequently fail to reach acceptable quality. The uses of packaging and ethylene (C2H4) absorber are regarded as well-known ways to solve that problem. However, accumulated CO2 in the package can promote the symptoms of internal browning on pear flesh also exacerbated by too low O2 concentrations. To inhibit the symptoms in ‘Silver Bell’ pear for a long period, we utilized CO2 adsorbent, CO2 adsorbent plus C2H4 adsorbent, and without both adsorbents in a bag to investigate their effects on internal browning development for 7 months in cold-storage. We found both adsorbents successfully reduced CO2 and C2H4 levels even though the incidences were visually found at 3 months of storage. Most severe internal browning was observed on CO2 adsorbent-untreated pears under high CO2 levels (7-9 %) increasing since the beginning of storage. Therefore, there were no significant differences on the color and flesh firmness among the treatments, except controls, during cold-storage. Internal browning-affected pears showed harder flesh, greener and darker color compared with unaffected pears. Interestingly, control samples also suffered internal browning under low CO2 ( ̴ 0.1 %)
and high O2 ( ̴ 20.5 %) concentrations after 5 months in storage with medium damage levels. We conclude that the uses of CO2 and C2H4 adsorbents successfully lowered CO2 and C2H4 levels in the bags during cold storage, but the both failed to prevent an internal browning development because too long storage period eventually caused internal browning.

Keywords: Pear; internal browning; packaging; CO2 and C2H4 adsorbents

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Ketersediaan

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Informasi Detail

Judul Seri

Agriculture and Agricultural Science Procedia

No. Panggil

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Penerbit

: Elsevier., 2015

Deskripsi Fisik

Agriculture and Agricultural Science Procedia 3 ( 2015 ) 127 – 131

Bahasa

English

ISBN/ISSN

doi: 10.1016/j.aaspr

Klasifikasi

NONE

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

3 ( 2015 )

Subjek

Pertanian

Info Detail Spesifik

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Pernyataan Tanggungjawab

Wati/Agus

Versi lain/terkait

Lampiran Berkas

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