Borax is a harmful compound to human health but sometimes was used illegally as preservative in meatball. Curcumax reagent is a compound which developed from the previous borax detector base on tumeric extract. This reagen was developed as an easy kit to apply in the field. This study aims were to determine accuracy of sight obesrvation and spectrophotometer to detected borax in boiled meatballs which tested by Curcumax and to determine the effect of boiling on the borax presence in the meatballs. This study was using meatballs group as a control and another meatballs group preserve with borax 0.5%. Each treatment group was boiled in 0, 5, 10, and 15 minutes and each treatment unit had three replications which consist five meatballs each of them. Borax detection was done by mixing 1ml Curcumax reagent into 1 ml meatball extract. Qualitative examination of borax presence in the meatballs was known based on the color changing of tested meatball's extract from yellow became orange (direct sight with eyes). The Quantitaive analysis was done by measured using spectrophotometer base on wave-length (λ) at 570 nm. Data was analyzed with ANOVA and continued by Least Significant Difference (LSD) analysis. Borax detection using curcumax based on sight sense against color change giving an inconsistence result. Meanwhile quantitative measurement by spectrophotometer more accurate than one. Curcumax had been detected borax in meatball which boiled for 15 minutes.Keywords : borax, meatballs, Curcumax, spectrophotometry
AbstrakBoraks merupakan zat kimia yang berbahaya bagi kesehatan masyarakat namun seringkali digunakan dalam bakso. Pengembangan alat deteksi boraks yang praktis sangat diperlukan di lapangan. Reagen Curcumax adalah hasil pengembangan alat deteksi boraks yang berbahan dasar ekstrak kunyit. Penelitian ini bertujuan mengetahui ketelitian pengamatan indra penglihatan dan spektrofotometer dalam mendeteksi boraks dalam bakso yang direbus yang diuji menggunakan reagen Curcumax dan mengetahui pengaruh perebusan terhadap keberadaan boraks dalam bakso. Penelitian ini menggunakan kelompok bakso kontrol dan kelompok bakso boraks 0,5% dengan perlakuan perebusan selama 0, 5, 10 dan 15 menit. Setiap unit perlakuan dilakukan ulangan sebanyak 3 kali yang masingmasing tediri dari 5 butir bakso. Pemeriksaan kandungan boraks dilakukan dengan cara 1 ml ekstrak bakso diuji dengan 1 ml reagen Curcumax. Penilaian keberadaan boraks secara kualitatif didasarkan pada perubahan warna ekstrak bakso yang berubah dari kuning menjadi oranye. Pemeriksaan kuantitaif dilakukan dengan cara mengukur intensitas warna ekstrak bakso yang telah ditetesi Curcumax dengan spektrofotometer pada panjang gelombang 570 nm. Data dianalisis dengan ANOVA dan dilanjutkan dengan analisis Least Significant Difference(LSD). Penilaian kulitatif boraks berdasarkan pengamatan indra penglihatan memberikan hasil yang tidak konsisten sementara penilaian berdasarkan spektrofotometer lebih akurat. Perebusan mengurangi kandungan boraks dalam bakso. Reagen Curcumax ma...