DOI: https://doi.org/10.14710/jplp.8.2.147-155

Alternatif Deteksi Boraks dengan Ekstrak Kulit Ubi Jalar Ungu Sebagai Bahan Praktikum

1Laboratorium Gizi, Fakultas Kesehatan Masyarakat, Universitas Diponegoro, Semarang, Indonesia

2Laboratorium Teknologi Hasil Perikanan, Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro, Semarang, Indonesia

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Abstract

Borax is dangerous for health because it can cause kidney, liver and central nervous system dysfunction. The content of borax in food can be qualitatively detected by various methods. These methods include the flame test and turmeric paper test. The aim of this research is to make an alternative for borax detection using purple sweet potato skin extract as a practicum material. This is to reduce the use of chemical reagents. Reagents from natural materials have advantages such as easy to obtain, more economical and do not cause environmental pollution. This research is an experimental research, using tools and materials of purple sweet potato skin, 96% ethanol, aquadest, borax (Na2B4O710H2O), 10% NaOH, concentrated HCl, pH paper, Macherey-Nagel® Turmeric Paper 90747, white tofu and analytical balance. The results of the purple sweet potato peel extract test on tofu samples were compared to tests using turmeric paper as the gold standard. The positive sample contains borax, if there is a change in color to green in the test with purple sweet potato peel extract, and turns red in the test with turmeric paper. From the results of a comparison of the cost of making borax detection, purple sweet potato peel extract is more economical than using turmeric paper and flame tests. It was concluded that purple sweet potato peel extract could be used as a more economical alternative in qualitatively testing borax content in foods.

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Keywords: borax, detection, purple sweet potato skin extract

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  1. A. Mahmudatussa’adah, D. Fardiaz, N. Andarwulan, and F. Kusnandar. 2014. Karakteristik Warna dan Aktivitas Antioksidan Antosianin Ubi Jalar Ungu [Color Characteristics and Antioxidant Activity of Anthocyanin Extract from Purple Sweet Potato]. J. Teknol. dan Ind. Pangan, vol. 25, no. 2, pp. 176–184, doi: 10.6066/jtip.2014.25.2.176
  2. A.E. Novitasari & Z.A. Barik, 2018. Pemanfaatan Ekstrak Antosianin dari Bunga Kembang Sepatu (Hibiscus-Rosa Sinensis. L) sebagai Indikator untuk Identifikasi Boraks. Jurnal Sains Vol.8 No.16.ISSN 2087-0725
  3. B. de N. do Carmo Brito, R. da Silva Pena, A. Santos Lopes, and R. Campos Chisté. 2017. Anthocyanins of Jambolão (Syzygium cumini): Extraction and pH-Dependent Color Changes. J. Food Sci., vol. 82, no. 10, pp. 2286–2290, doi: 10.1111/1750-3841.13847
  4. G. Ekawati, Hapsari, and Wipranyawati. 2014. Kajian Varietas dan Bagian Daging Umbi Ubi Ungu dalam Rangka Penyediaan Tepung Ubi Ungu Sehat Termodifikasi. Denpasar: UNMAS Press
  5. H. E. Khoo, A. Azlan, S. T. Tang, and S. M. Lim. 2017. Anthocyanidins and anthocyanins: Colored pigments as food, pharmaceutical ingredients, and the potential health benefits. Food Nutr. Res., vol. 61, no. 1, doi: 10.1080/16546628.2017.1361779
  6. I. Rina Setyawati, Daryanti. 2020. Identifikasi Boraks Menggunakan Ekstrak Ubi Jalar. J. Syntax Transform., vol. 1, no. 5
  7. JECFA. 2012. Boron (including boric acid and borates). In *Evaluation of Certain Food Additives and Contaminants: Seventy-sixth Report of the Joint FAO/WHO Expert Committee on Food Additives* (WHO Technical Report Series No. 960). Geneva: World Health Organization
  8. Macherey-Nagel 907 47 Qualitative Tumeric paper.[Online].Available: https://www.tokopedia.com/labsupply/macherey-nagel-907-47-qualitative-tumeric-paper
  9. N. El Husna, M. Novita, and S. Rohaya. 2013. Kandungan Antosianin dan Aktivitas Antioksidan Ubi Jalar Ungu Segar dan Produk Olahannya. Agritech, vol. 33, no. 3, pp. 296–302
  10. Peraturan Menteri Kesehatan Republik Indonesia Nomor 033 Tahun 2012 tentang Bahan Tambahan Pangan
  11. A. Purwanti, D. Lestari and S. Salbiah. 2023. Identifikasi Boraks dan Formalin pada Mie Basah dalam Soto Mie.The Journal of Medical Laboratory, vol. 11, no. 1, pp. 63-70, 2023
  12. R. Moulana, Juanda, S. Rohaya, and R. Rosika. 2012. Efektivitas Penggunaan Jenis Pelarut dan Asam Dalam Proses Ekstraksi Pigmen Antosianin Kelopak Bunga Rosella ( Hibiscus Sabdariffa L ). J. Teknol. dan Ind. Pertan. Indones., vol. 4, no. 3, pp. 20–25
  13. Santoso, D., Rahayu, A. A., Herawati, A., Salsabillah, S., Damayanti, S., & Sulistiyorini, D. 2024. Kandungan formalin dan boraks pada makanan jajanan: Literature review. Journal of Public Health Education, 3(3), 82–84. https://doi.org/10.53801/jphe.v3i3.186
  14. Septiani, T., & Roswien, A. P. 2018. Analisis kualitatif kandungan boraks pada bahan pangan daging olahan dan identifikasi sumber boron dengan FTIR – ATR. Indonesian Journal of Halal, 1(1), 48-52
  15. S. R. Armanzah and T. Y. Hendrawati. 2016. Pengaruh Waktu Maserasi Zat Antosianin Sebagai Pewarna Alami dari Ubi Jalar Ungu (Ipomoea batatas L. Poir). Semin. Naional Sains dan Teknol., no. November, pp. 1–10
  16. S. T. Juli Fendri. 2018. Pengaruh pH Dan Suhu Terhadap Stabilitas Antosianin Dari Ekstrak Kulit Ubi Jalar Ungu (Ipomoea Batatas (L.) Lam.). Chempublish J., vol. 2, no. 2, pp. 33–41 doi: 10.22437/chp.v2i2.4305
  17. S. Zurimi, 2021. Deteksi Boraks Menggunakan Kertas Whatman Dengan Ekstrak Kunyit (Curcuma Longga Linn) Pada Tahu. JNJ Jambura Nursing Journal Vol. 3, No. 2, July 2021 pISSN: 2654-2927, eISSN: 2656-4653 DOI: https://doi.org/10.37311/jnj.v3i2.11347

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