Pengaruh Pelapis Bionanokomposit terhadap Mutu Mangga Terolah Minimal

Ata Aditya Wardana, Nugraha Edhi Suyatma, Tien Ruspriatin Muchtadi, Sri Yuliani

Abstract


Abstract
Minimally-processed mango is a perishable product due to high respiration and transpiration and microbial decay. Edible coating is one of the alternative methods to maintain the quality of minimally - processed mango. The objective of this study was to evaluate the effects of bionanocomposite edible
coating from tapioca and ZnO nanoparticles (NP-ZnO) on quality of minimally - processed mango cv. Arumanis, stored for 12 days at 8°C. The combination of tapioca and NP-ZnO (0, 1, 2% by weight of tapioca) were used to coat minimally processed mango. The result showed that application of bionanocomposite edible coatings were able to maintain the quality of minimally-processed mango during the storage periods. The bionanocomposite from tapioca + NP-ZnO (2% by weight of tapioca) was the most effective in reducing
weight loss, firmness, browning index, total acidity, total soluble solids ,respiration, and microbial counts. Thus, the use of bionanocomposite edible coating might provide an alternative method to maintain storage quality of minimally-processed mango.

Abstrak
Mangga terolah minimal merupakan produk yang cepat mengalami kerusakan dikarenakan respirasi yang cepat, transpirasi dan kerusakan oleh mikroba. Edible coating merupakan salah satu alternatif metode untuk mempertahankan mutu mangga terolah minimal. Tujuan dari penelitian ini adalah untuk mengevaluasi pengaruh pelapis bionanokomposit dari tapioka dan nanopartikel ZnO (NP-ZnO) terhadap mutu mangga terolah minimal cv. Arumanis yang disimpan selama 12 hari pada suhu 8oC. Kombinasi
dari tapioka dan NP-ZnO (0, 1, 2% b/b tapioka) digunakan untuk melapisi mangga terolah minimal. Hasil menunjukkan bahwa pelapisan bionanokomposit mampu mempertahankan mutu mangga terolah minimal selama penyimpanan. Bionanokomposit dari tapioka + NP-ZnO (2% b/b tapioka) paling efektif dalam menghambat penurunan susut bobot, kekerasan, indeks pencoklatan, total asam, total padatan terlarut, respirasi dan total mikroba. Dengan demikian, pelapis bionanokomposit dapat digunakan sebagai salah satu alternatif untuk mempertahankan kualitas mangga terolah minimal selama penyimpanan.


Keywords


mango, minimally-processed, bionanocomposite, tapioca, NP-ZnO

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