Sains Malaysiana 51(9)(2022): 2885-2895

http://doi.org/10.17576/jsm-2022-5109-12

Bamboo Fruit Storage Chamber (FSC) Equipped with Ethylene-Degrading Manganese Doped Titanium Oxide Nanomaterial as Storage for Banana (Musa acuminata)

(Ruang Penyimpanan Buah Buluh (FSC) Dilengkapi dengan Bahan Nano Titanium Oksida Didop Mangan Etilena sebagai Penyimpanan Pisang (Musa acuminata)

SOPHIE ANGGITTA RAHARJANI¹, AFANDI FARIS AIMAN², MEIRIFA RIZANTI², DEVY NAVIANA³, KEVIN AMADEUS SUMENDAP¹ & RIZKITA RACHMI ESYANTI^1,3

¹Department of Bioengineering, School of Life Sciences and Technology, Institut Teknologi Bandung, Indonesia

²Department of Biotechnology, School of Life Sciences and Technology, Institut Teknologi Bandung, Indonesia

³Department of Biology, School of Life Sciences and Technology, Institut Teknologi Bandung, Indonesia

Received: 17 July 2021/Accepted: 23 March 2022

Abstract

As a climacteric fruit, banana undergoes rapid ripening induced by the hormone ethylene, which is produced by autocatalytic reactions. Titanium dioxide is a photocatalytic compound with the ability to degrade ethylene to water and carbon dioxide. This compound can be used to control the concentration of ethylene inside storage chambers to delay the ripening process of bananas in storage. A passive modified atmosphere is another method to delay ripening by using storage spaces with limited air flow. This study attempts to investigate the performance of TiO₂-Mn and bamboo fruit storage chamber (FSC) to delay the ripening of bananas by measuring characteristic physiological changes for 7 days which included ethylene accumulation in storage space, rate of ethylene production, rate of respiration, starch content, and soluble sugar content. The results show that the use of FSC in combination with TiO₂-Mn can be used to delay the ripening of bananas. This study also investigated the effect of volumetric occupation to the efficacy of FSC by varying the number of banana fingers in storage and varying the volume of the chamber. While the volume of the FSC did not produce a significant difference in performance, the number of bananas stored in each FSC greatly influenced the delay-ripening ability of FSC with TiO₂-Mn. At the end of the study, a profile plotted with MATLAB is presented to show the relationship of ethylene concentration in FSC in respect to storage time and number of fingers stored.

Keywords: Cavendish banana; delay ripening; ethylene; fruit storage chamber; TiO₂

Abstrak

Sebagai buah klimakterik, pisang mengalami kematangan yang cepat disebabkan oleh hormon etilena. Etilena dihasilkan oleh pisang semasa masak melalui tindak balas autokatalitik. Titanium dioksida adalah sebatian fotokatalitik dengan keupayaan memecahkan etilena menjadi air dan karbon dioksida. Sebatian ini boleh digunakan untuk mengawal kepekatan etilena di dalam ruang simpanan untuk melambatkan proses masak pisang dalam simpanan. Atmosfera terubah suai pasif adalah kaedah lain untuk melambatkan pematangan pisang. Ia boleh dicapai dengan menyimpan pisang di dalam ruang yang mengehadkan aliran udara. Kajian ini cuba menyelidik kebolehan TiO₂-Mn dan ruang penyimpanan buah atau (FSC) untuk melambatkan pematangan pisang dengan mengukur perubahan fisiologi selama 7 hari yang merangkumi kepekatan etilena dalam FSC, kadar pengeluaran etilena, kadar respirasi, kandungan kanji dan kandungan gula larut. Hasil kajian ini menunjukkan bahawa penggunaan FSC dalam gabungan dengan TiO₂-Mn boleh digunakan untuk melambatkan pematangan pisang. Kajian ini juga menilai pengaruh ruang isi padu kepada kecekapan FSC dengan mempelbagaikan jumlah pisang dalam simpanan dan mempelbagaikan saiz ruang. Walaupun volum FSC tidak menghasilkan perbezaan hasil yang ketara, jumlah pisang yang disimpan dalam setiap FSC sangat mempengaruhi keupayaan FSC dengan TiO₂-Mn dalam melambatkan pematangan pisang. Pada akhir kajian, profil yang diplot dengan MATLAB dibentangkan untuk menunjukkan hubungan kepekatan etilena dalam FSC berkenaan dengan masa penyimpanan dan bilangan pisang yang disimpan.

Kata kunci: Etilena; pisang Cavendish; melambatkan pematangan; ruang penyimpanan buah; TiO₂

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^*Corresponding author; email: rizkita@sith.itb.ac.id