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All Journal Jurnal Kimia Riset Indonesian Journal of Multidiciplinary Research (IJoMR)
Saputra, Ziyan
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Social Sciences Other

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Analysis of Cassava Peel and Pineapple Peel as Electrolytes in Bio Battery Sitanggang, Julia Elisabeth; Latifah, Nur Zahra; Sopian, Opi; Saputra, Ziyan; Nandiyanto, Asep Bayu Dani; Anggraeni, Sri; Rahmat, Ali
Indonesian Journal of Multidiciplinary Research Vol 1, No 1 (2021): IJOMR: VOLUME 1, ISSUE 1, 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1436.194 KB) | DOI: 10.17509/ijomr.v1i1.33774

Abstract

This study investigated the effect of the ratio of the electrolyte paste mixture of cassava peel (CP) and pineapple peel (PP) on the voltage and current strength. In the experiments, prior to using, CP and PP biomass waste was cleaned then soaked for 30 minutes. Furthermore, the biomass waste is mashed and put into the test media according to the comparison. In this study, CP/PP compositions were varied with the value of 100: 0; 75:25; 50:50; 25:75; and 0: 100. The results showed that the highest electrolyte obtained by voltage and current strength with a ratio of 100: 0. The more CP comparisons used, the greater the voltage and strong current. This research is potentially used as one of the renewable alternative energies and can utilize existing biomass waste.
PHYTOCHEMICAL PROFILES, ANTIOXIDANT, AND ANTICANCER ACTIVITIES FROM LEAVES AND SEEDS EXTRACT OF Myristica fragrans Saputri, Ariyanti; Fajriah, Sofa; Cahyana, Antonius Herry; Putria, Devi Kasih; Saputra, Ziyan; Angelina, Marissa
Jurnal Kimia Riset Vol. 9 No. 2 (2024): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v9i2.65245

Abstract

Nutmeg (Myristica fragrans) is a plant that grows naturally in Indonesia and widely used in the food and industrial sectors. Nutmeg seeds have been widely studied because they have a variety of compounds with good activities, but research on the leaves still needs to be completed. Therefore, this research compared nutmeg leaves and seed extracts' secondary metabolite content and bioactivity. This study aims to determine the phytochemical contents of nutmeg leaves and seed extracts by phytochemical screening and GC-MS analysis, as well as its potential as an antioxidant and anticancer. The antioxidant activity test uses the DPPH (1,1-diphenyl-2-picrylhydrazyl) method measured at a wavelength of 517 nm. Meanwhile, the anticancer activity test uses MCF-7 cells with the MTT assay method. Nine compounds (lipid, phenylpropanoid, lignan, terpenoid, and quinone groups) were identified by GC-MS analysis in the leaf extracts. Meanwhile, seed extract has 23 compounds from the lipid, fatty acid, phenylpropanoid, lignan, and terpenoid groups. The antioxidant activity of nutmeg leaves and seed extracts was carried out using the DPPH method, while the cytotoxic activity against MCF-7 cells used the MTT method. Nutmeg leaves have more potent antioxidant activity than nutmeg seeds, with IC50 values of 17.80 µg/mL and 53.01 µg/mL, respectively. The cytotoxic activity test on MCF-7 cells also showed that the inhibition value of nutmeg extract (26%) was higher than that of nutmeg seeds (22.73%). This research shows that nutmeg leaf extract has the potential to carry out further research regarding the bioactivity of its compounds.
Co-Authors Ali Rahmat Antonius Herry Cahyana Asep Bayu Dani Nandiyanto Latifah, Nur Zahra Marissa Angelina Putria, Devi Kasih Saputri, Ariyanti Sitanggang, Julia Elisabeth Sofa Fajriah Sopian, Opi Sri Anggraeni