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All Journal Indonesian Journal of Chemistry Chemistry Indonesian Journal of Chemical Research Walisongo Journal of Chemistry JURNAL RISET DIWA BAHARI
Putri, Tri Widayati
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science Immunology & microbiology

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Analysis the Effect of Activated Natural Zeolites for Fe Metal Adsorption Fadliah, Fadliah; Palit, Christin; Pratiwi, Reno; Aryanto, Reza; Putri, Tri Widayati
Walisongo Journal of Chemistry Vol 6, No 2 (2023): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v6i2.17291

Abstract

Zeolite, as an adsorbent, can be improved by a chemical activation process. In this study, zeolite was activated using the acid activation method by soaking natural zeolite with HCl and HF, and the activated zeolite was then used to adsorb Fe metal. Zeolite was characterized using SEM and XRD, and the adsorption capacity of the zeolite was analyzed using AAS. The results of SEM analysis show that zeolite after activation has a more significant number of pores than zeolite before activation. The results of XRD analysis show that zeolite that has been activated has a higher content of quartz (SiO2) and clinoptilolite than zeolite that has not been activated. The results of the zeolite adsorption capacity and efficiency test on Fe metal showed that the most excellent adsorption capacity was when the contact time was 60 minutes, with adsorption capacity and adsorption efficiency values of 3.2403 mg/g and 97.21%.
Bioactive Compounds and Microbacteria of Peel-Off Gel Mask Caulerpa racemosa Putri, Tri Widayati; Karim, Mutemainna; Khairiyah, Zul; Ramadhani, Andi Fitri
Indonesian Journal of Chemical Research Vol 11 No 2 (2023): Edition for September 2023
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2023.11-tri

Abstract

Caulerpa racemosa is a type of seaweed that has the potential to be cultivated because it is known and favored by the public.Caulerpa racemosa is used not only for consumption as food but also for beauty cosmetics because of its ingredients. This study aims to determine the Bioactive content and total plate count (TPC) of the Caulerpa racemosa peel-off gel mask. The pour plate method was used to determine the total plate number of mycobacteria and phytochemical testing in the form of tests for flavonoid, alkaloid, phenolic, tannin, triterpenoids, and saponin. The results showed that the total colony total plate count until the 3rd repetition had an average of 31 col/g. The results of the phytochemical test of the Caulerpa racemosa peel-off gel mask contained bioactive compounds: flavonoid, alkaloid, phenolic, tannins, triterpenoid, and saponin. Conclusion: The Total plate count of Caulerpa racemosa peel off the gel mask complies with Indonesian National standards (INS) with the content of bioactive compounds, namely tannins dan saponins. Caulerpa racemose was used for a pell-off gel mask for the first time.
Analisis Kimia Telur Ikan Tuna Mata Besar (Thunnus obesus) dari Berbagai Tingkat Kematangan Gonad Putri, Tri Widayati; Kamaruddin, Nurulhikmah; Khairiyah, Zul
Jurnal Riset Diwa Bahari (JRDB) Volume 3, Nomor 1, 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v3i1.39

Abstract

Bigeye tuna (Thunnus obesus) is a type of large pelagic fish belonging to the Scombriade family that can spawn repeatedly during the spawning season. Bigeye tuna eggs have several phases of gonad maturity, including gonad maturity level IV and gonad maturity level V. This study aims to determine the chemical composition and mineral composition of bigeye tuna eggs (Thunnus obesus) from two levels of gonad maturity, namely gonad maturity level IV and gonad maturity level V. The parameters analyzed were water content, ash content, protein content, fat content, iron and zinc with three repetitions for each parameter. This study was conducted from June to August 2024. Sampling was carried out at two different locations with samples in the form of bigeye tuna eggs (Thunnus obesus). The results of the study showed that bigeye tuna eggs from gonad maturity level IV had a water content of 69.94%, ash content of 4.04%, protein content of 20.43%, fat content of 0.94%, iron content of 34.42% and zinc content of 142.58%. While the gonad maturity level V had a water content of 72.01%, ash content of 3.22%, protein content of 19.82%, fat content of 1.55%, iron content of 14.83% and zinc content of 172.50%. Based on the statistical results, it showed that bigeye tuna eggs had significant differences (significantly different) in water content, ash content, protein, fat, iron and zinc at two gonad maturity levels IV and gonad maturity level V.
Synthesis and Characterization of Nickel Nanoparticles: Biological and Photocatalytic Properties Fadliah, Fadliah; Raya, Indah; Ahmad, Ahyar; Taba, Paulina; Burhanuddinnur, Muhammad; Gaffar, Maming; Putri, Tri Widayati; Nur, Arfiani; Abubakar, Andi Nur Fitriani; Munadi, Rachmin; Majid, Ahmad Fudhail; Pratama, Irham; Yasser, M.; Jarre, Sulistiani; Karim, Harningsih
Indonesian Journal of Chemistry Vol 25, No 1 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.90034

Abstract

The potential uses of ecologically benign nickel nanoparticle manufacturing in various sectors, such as biomedicine, energy storage, and catalysis, have garnered much interest. This paper covers green approaches to nickel nanoparticle manufacturing, which integrate natural substances as stabilizing and reducing agents with eco-friendly processes. Phytochemicals derived from bacteria, microorganisms, and plant leaf extracts can convert nickel ions (Ni2+) into nickel nanoparticles. Room temperature is used for the synthesis procedure, and neither dangerous compounds nor unusual reaction conditions are used. Using a variety of analytical methods, the resultant nickel nanoparticles were characterized. We also investigate the possibility of using the generated nickel nanoparticles as a cytotoxic, photocatalytic, antioxidant, and antibacterial agents. The antimicrobial activity of nickel nanoparticles demonstrates their potent antibacterial properties, while their antioxidant activity demonstrates their capacity to combat free radicals effectively. Furthermore, nickel nanoparticles' cytotoxic activity demonstrates their capacity to kill cancer cells, and their photocatalytic activity demonstrates their efficiency in breaking down organic contaminants. This review highlights the value of ecologically benign synthetic methods and creates new avenues for developing nickel nanoparticle applications in health and the environment.
Karakteristik Mekanik Selulosa Dari Rumput Laut Kappaphycus alvarezii di Kabupaten Takalar Putri, Tri Widayati; Yusra, Reski Ardini; Awaluddin, Awaluddin
Jurnal Riset Diwa Bahari (JRDB) Volume 3, Nomor 1, 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v3i1.71

Abstract

Kandungan selulosa dan karakteristik mekanik selulosa dalam menentukan kelayakan rumput laut sebagai bahan baku biomaterial ramah lingkungan, selain sifat fisikokimia selulosa diperlukan untuk menunjang pemanfaatan limbah rumput laut secara optimal. Sehubungan dengan hal tersebut, penelitian ini bertujuan untuk menganalisis kadar dan karakteristik mekanik selulosa dari rumput laut Kappaphycus alvarezii yang berasal dari Kabupaten Takalar. Penelitian ini dilaksanakan dari bulan September hingga Januari 2025 di Makassar, dengan menggunakan pendekatan deskriptif melalui metode kualitatif. Hasil penelitian menunjukkan bahwa kadar selulosa meningkat dari 12,31% pada sampel mentah menjadi 20,04% setelah proses ekstraksi. Analisis FTIR mengidentifikasi gugus fungsi khas selulosa seperti –OH, C=O, dan C–O–C, sementara SEM menunjukkan perubahan morfologi menjadi lebih berpori dan homogen setelah perlakuan kimia. Temuan ini mengindikasikan bahwa Kappaphycus alvarezii berpotensi tinggi sebagai sumber bahan selulosa yang dapat dikembangkan untuk keperluan bioplastik atau biomaterial lainnya.
Co-Authors Abbas, Bismirahma Abubakar, Andi Nur Fitriani Ahmad Fudhail  Majid Ahyar Ahmad Arfiani Nur Aryanto, Reza Awaluddin Awaluddin Burhanuddinnur, Muhammad Elfrida Ratnawati Fadliah, Fadliah Harningsih Karim Indah Raya Kamaruddin, Nurulhikmah Karim, Mutemainna Khairiyah, Zul Maming Gaffar, Maming Munadi, Rachmin Palit, Christin Paulina Taba PRATAMA, IRHAM Ramadhani, Andi Fitri Sulistiani Jarre Susilowati, Aryanti Syamda, A Virati Yasser, M Yusra, Reski Ardini