Puspaningrum, D. A. and Zulkifli, Zulkifli and Handayani, T.T. and Lande, Martha L. (2018) Pengaruh Penambahan Asam Askorbat Terhadap Proses Non-Enzimatik Browning Jus Buah Salak Pondoh (Salacca zalacca Gaertn.). Jurnal Penelitian Pertanian Terapan, 18 (3). ISSN 1410-5020 (In Press)
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Abstract
The purpose of this research was to find out how effective ascorbic acid to prevent the non-enzymatic process of browning pondoh snake fruit juice. The research was conducted in a complete randomized design consisting of 5 replications. The nonenzymatic browning inhibition process was tested with ascorbic acid treatment as the main factor with five concentrations ie 0% w/v, 2.5% w/v, 5% w/v, 7.5% w/v and 10% w/v. Qualitative parameters were dehydrogenase enzyme activity and reducing sugar level. Quantitative parameters were browning index and total soluble carbohydrate content. Levene test, analysis of variance, and Tukey test were performed at 5% significant level. The results showed that pondoh snake fruit juice with treatment relatively lighter than pondoh snake fruit juice control. Decrease in dehydrogenase enzyme activity occurs along with increasing the concentration of ascorbic acid. The level of reducing sugar has increased along with the increase of ascorbic acid concentration. The 10% w/v ascorbic acid concentration decrease in non-enzymatic browning of pondoh snake fruit juice with a 27% reduction in the browning index. Total soluble carbohydrate content increased 15% at 7,5% w/v ascorbic acid concentration. From the results of the study it was concluded that ascorbic acid at 10% w/v concentration was the inhibitor of non-enzymatic browning and dehydrogenase enzyme activity, but ascorbic acid at 7,5% w/v concentration was the stimulator of total soluble carbohydrate and reducing sugar level.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QK Botany |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Biologi |
| Depositing User: | T. T. HANDAYANI |
| Date Deposited: | 28 Jun 2018 01:55 |
| Last Modified: | 28 Jun 2018 01:55 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/7985 |
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