Penggunaan Asam Askorbat dan Lidah Buaya untuk Menghambat Pencoklatan pada Buah Potong Apel Malang
Abstract
Abstract
The objective of this study was to examine the use of ascorbic acid and aloevera gel as anti browning agent for cut-fruit ‘malang’ apple fruit. The solution of 1% and 3% ascorbic acid, 5% and 10% aloevera gel were used as anti browning solutions. A group of cut apple fruits were dipped in the solutions for 2 minutes and stored at 5ºC. The result showed that dipping treatments in anti browning solutions could inhibit oxidation of polyphenol oxidase (PPO) indicated by Browning Index value. Ascorbic acid solution was more effective than that aloevera gel. From two different percentage of ascorbic acid solutions, concentration of 3% resulted better inhibition than that of 1%.
Abstrak
Tujuan dari penelitian ini adalah melakukan kajian penggunaan asam askorbat dan lidah buaya sebagai bahan anti pencoklatan untuk buah apel malang potong. Larutan asam askorbat dengan konsentrasi 1% dan 3% serta lidah buaya dengan konsentrasi 5% dan 10% digunakan sebagai larutan anti pencoklatan pada buah apel malang. Sampel buah apel malang potong direndam di larutan asam askorbat dan lidah buaya selama 2 menit dan selanjutnya disimpan di suhu 5ºC. Hasil pengamatan menunjukkan bahwa pencelupan pada larutan anti browning dapat mempertahankan kecerahan apel potong selama penyimpanan dan dapat menghambat oksidasi polyphenol oxidase (PPO) yang ditunjukkan dengan nilai Browning Index. Larutan asam askorbat lebih efektif mencegah pencoklatan dibandingkan dengan lidah buaya. Untuk larutan asam askorbat, konsentrasi 3% lebih efektif mencegah pencoklatan dibandingkan dengan 1%.
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