IDENTIFIKASI KLORIN PADA BERAS PUTIH (Oryza sativa) DENGAN METODE KUALITATIF DAN KUANTITATIF DI PASAR CIBINONG DAN PASAR CILUAR KABUPATEN BOGOR

Putriyani, Yunita (2022) IDENTIFIKASI KLORIN PADA BERAS PUTIH (Oryza sativa) DENGAN METODE KUALITATIF DAN KUANTITATIF DI PASAR CIBINONG DAN PASAR CILUAR KABUPATEN BOGOR. Thesis thesis, Universitas Djuanda Bogor.

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Abstract

Yunita Putriyani. B.1810409. Identification of Chlorine in White Rice (Oryza sativa) Using Qualitative and Quantitative Methods in Cibinong Market and Ciluar Market, Bogor Regency. Supervised by Noli Novidahlia and Nindya Atika Indrastuti. The source of carbohydrates commonly consumed by some Indonesian people is white rice. Manufacturers spray aromatic substances and use chlorine bleach on white rice to improve rice quality. The aims of this study were to identify the chlorine content qualitatively in white rice in Cibinong and Ciluar markets, Bogor district, to identify the chlorine content quantitatively in chlorine-positive rice and to make efforts to reduce chlorine levels in white rice. Qualitative identification of chlorine content using color reaction. The quantitative test of positive chlorine samples was carried out using uv-vis spectrophotometry, the decrease in chlorine levels was carried out by immersing at 60oC temperature for 15 minutes and carrying running water 3 times. White rice that contains chlorine were branded white rice obtained from Cibinong Market. The results of the analysis of chlorine levels in white rice that were positive for a qualitative chlorine test were the average in sample A 8 was 2.2 ppm ± 0, the average in sample A 10 was 2,566 ppm ± 0.011 and the average in sample A 11 was 6,679 ppm ± 0.012. The results of the analysis of chlorine levels using the soaking and washing method showed a decrease in chlorine levels in white rice containing chlorine, the average of sample A 8 was 45,45 ± 0,5162%, the average for sample A 10 was 41,50 ± 1.174% and the average in sample A 11 was 43.81 ± 0.4243%.

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