Phytochemical Content of Fresh Purple Sweet Potato (Ipomea batatas L.) Extract As Acid-Base Titration Indicator

Anjelina Derci Jenimat; Yustina D Lawung; Anselmus Boy Baunsele; Erly Grizca Boelan; Theresia Wariani; Maria Aloisia Uron Leba

doi:10.31938/jsn.v13i2.439

Phytochemical Content of Fresh Purple Sweet Potato (Ipomea batatas L.) Extract As Acid-Base Titration Indicator

Authors

Anjelina Derci Jenimat Universitas Katolik Widya Mandira - Kupang
Yustina D Lawung Universitas katolik Widya Mandira - Kupang
Anselmus Boy Baunsele Universitas Katolik Widya Mandira - Kupang
Erly Grizca Boelan Universitas Katolik Widya Mandira - Kupang
Theresia Wariani Universitas Katolik Widya Mandira - Kupang
Maria Aloisia Uron Leba Universitas Katolik Widya Mandira -Kupang

DOI:

https://doi.org/10.31938/jsn.v13i2.439

Keywords:

acid base , indicator, phytochemical, Ipomea batatas L, purple sweet potato

Abstract

Research has been carried out to examine the extraction and application of purple sweet potato tuber extract as an indicator of acid-base titration. Purple sweet potato tuber extract was obtained by extracting fresh tubers using ethanol 95% medical grade (PSPTE-95%) and ethanol 96% analytical grade (PSPTE-96%). Three variations of the maceration stage extracted samples. The extract was used for a phytochemical test and applied as an indicator for acid-base titration. Based on the research conducted, the rendement extract was extracted by ethanol 95% medical grade (PSPTE-95%) for the three stages of maceration are 4.34%, 4.76%, and 5.64%, the rendement extract was extracted by ethanol 96% analysis grade (PSPTE-96%) for the three stages of maceration are 7.09%, 12.16%, and 20.43%. PSPTE-95% and PSPTE-96% contain flavonoids, tannins, alkaloids, and saponins. PSPTE-95% and PSPTE-96% can be applied as indicators for titration of HCl solution with NaOH solution and HCl solution with NH₄OH solution.

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