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Analisis Perbandingan Proses Pengolahan Ikan Lele terhadap Kadar Nutrisinya Endang Ciptawati; Ihsan Budi Rachman; Hanumi Oktiyani Rusdi; Mieke Alvionita
Indonesian Journal of Chemical Analysis (IJCA) Vol. 4 No. 1 (2021): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol4.iss1.art5

Telah dilakukan riset pengaruh proses pengolahan bahan makanan terhadap kandungan nutrisi ikan lele. Tujuan dari riset ini adalah untuk mengetahui pengaruh proses pengolahan dalam hal ini pengukusan dan penggorengan terhadap kandungan nutrisi ikan lele. Penelitian ini difokuskan pada penentuan kadar air karena mempengaruhi keawetan makanan, kadar abu karena merepresentasikan kandungan mineral dalam ikan dan kadar protein karena ikan merupakan salah satu sumber protein hewani yang potensial. Prosedur yang digunakan dalam penelitian ini adalah pengujian kandungan air dengan thermogravimetri, kandungan abu memakai dry ashing, dan kandungan protein menggunakan metode Lowry-Folin. Jika dibandingkan dengan ikan lele segar, pada ikan lele yang digoreng, terjadi penurunan persentase air sebanyak 32,64%, kandungan abu meningkat 1,40% dankandungan protein menurun sebanyak 112,97 mg/L. Sementara pada proses pengukusan, kadar protein menurun sebesar 99,58 mg/L jika dibandingkan dengan ikan lele segar. Penurunan kadar protein pada ikan yang diolah disebabkan karena terjadinya denaturasi protein pada ikan lele oleh pemanasan. Hasil penelitian ini diharapkan dapat memberi gambaran kepada masyarakat mengenai pengaruh penurunan kadar nutrisi akibat proses pengolahan ikan lele.

Separation and Determination of Free Fatty Acids in Corn Oil and Palm Oil by Liquid-Liquid Extraction and Acidi-Alkalimetric Titration Rusdi, Hanumi Oktiyani; Kusumaningrum, Irma Kartika; Nareswari, Tsalis Jauza; Fauziah, Putri Nanda; Maharani, Richa Nan; Natasya, Shella
Walisongo Journal of Chemistry Vol 7, No 1 (2024): 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.v7i1.20461

Free Fatty Acids (FFA), which include unsaturated fatty acids like oleic and linoleic acid and saturated fatty acids like palmitic and stearic, are present in most oil compositions. The various negative impacts of FFA require these compounds to be eliminated. This research aims to separate FFA using Liquid-Liquid Extraction (LLE) and determine the levels of FFA using acid-alkalimetric titration in corn oil and palm oil. FFA extraction was carried out for 4 minutes with a solvent ratio of 9,5 ml diethyl ether + 40 ml ethanol + 0,5 ml water. By adding 1M Na2SO4, re-extraction was carried out for 3 minutes. The results obtained were 0.95% FFA levels in corn oil and 1.26% FFA levels in palm oil. FFA levels of both oils are still below the SNI FFA percentage of 3%; besides that, it is found that the FFA levels in palm oil are higher than in corn oil

Characterization of Organic Soap Synthesized from Samia cynthia ricini Cocoon Extract and Its Antibacterial Potential Rusdi, Hanumi Oktiyani; Wonorahardjo, Surjani; Kusumaningrum, Irma Kartika; Maisulah; Pribadi, Riza Agung; Putri, Adela Syiddah; Endang Ciptawati
Sains Natural: Journal of Biology and Chemistry Vol. 14 No. 3 (2024): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jsn.v14i3.725

In a modern era that increasingly values health and sustainability, the demand for natural and environmentally friendly personal care products continues to grow. One response to this trend is the development of organic soaps produced from various natural ingredients. In this study, organic soap using Samia cynthia ricini silkworm cocoon extract has been synthesized. This study aims to assess the quality of organic soap synthesized from silk cocoon extract based on the Indonesian National Standard (SNI) quality criteria and its antibacterial potential. Silk cocoon soap is made from a mixture of silk cocoon extract with palm oil, coconut oil, olive oil, sodium hydroxide, and water. The quality measurements include organoleptic tests, pH, moisture content, total fat, insoluble substance in ethanol, and free fatty acids, based on SNI No. 4085: 2017 and 3532: 2016. Antibacterial testing is conducted by disc diffusion. The results showed that the synthesized silk cocoon soap has a yellowish-white color, a hard density, and no odor. The quality criteria of the soap meet the established standards, with a pH of 9.66, a water content of 11.47%, total fat of 75.00%, ethanol-insoluble substances of 0.52%, and free fatty acids of 1.58%. The soap also demonstrates antibacterial potential that describes by a larger diameter of the inhibitory area against Staphylococcus aureus bacteria.

Separation and Determination of Free Fatty Acids in Corn Oil and Palm Oil by Liquid-Liquid Extraction and Acidi-Alkalimetric Titration Rusdi, Hanumi Oktiyani; Kusumaningrum, Irma Kartika; Nareswari, Tsalis Jauza; Fauziah, Putri Nanda; Maharani, Richa Nan; Natasya, Shella
Walisongo Journal of Chemistry Vol. 7 No. 1 (2024): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v7i1.20461

Free Fatty Acids (FFA), which include unsaturated fatty acids like oleic and linoleic acid and saturated fatty acids like palmitic and stearic, are present in most oil compositions. The various negative impacts of FFA require these compounds to be eliminated. This research aims to separate FFA using Liquid-Liquid Extraction (LLE) and determine the levels of FFA using acid-alkalimetric titration in corn oil and palm oil. FFA extraction was carried out for 4 minutes with a solvent ratio of 9,5 ml diethyl ether + 40 ml ethanol + 0,5 ml water. By adding 1M Na2SO4, re-extraction was carried out for 3 minutes. The results obtained were 0.95% FFA levels in corn oil and 1.26% FFA levels in palm oil. FFA levels of both oils are still below the SNI FFA percentage of 3%; besides that, it is found that the FFA levels in palm oil are higher than in corn oil

Pengolahan Limbah Batik dari UKM Batik Blimbing Malang dengan Metode Elektrokoagulasi Menggunakan Elektroda Besi dan Alumunium Jauhar Dziban Assauqi; Hanumi Oktiyani Rusdi; Khalishah Najla Nursyaf; Mohammad Ihya’ Ulumuddin; Nadia Paradipta Asha; Wahyu Aziz Siregar
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 8 No. 2 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v8i22024p016

Industri tekstil di Indonesia mengalami perkembangan pesat, terutama dalam produksi batik sebagai bagian dari industri tekstil. Penetapan batik sebagai warisan budaya tak benda oleh UNESCO memberikan dampak positif pada industri ini. Namun, proses produksi batik menghasilkan limbah cair yang mengandung pewarna sintetis dan bahan kimia berbahaya. Limbah ini, jika tidak diolah dengan benar, dapat mencemari lingkungan dan membahayakan organisme perairan. Metode pengolahan limbah cair batik seperti elektrokoagulasi telah terbukti efektif dalam menurunkan kadar pencemar seperti zat pewarna, BOD, dan COD. Dalam penelitian ini, penggunaan elektrokoagulasi dengan elektroda Fe dan Al berhasil menurunkan kadar COD hingga 96,7%. Selain itu, proses ini juga berpengaruh pada parameter lain seperti suhu, pH, CO2 terlarut, dan DO. Meskipun demikian, masih diperlukan penelitian lebih lanjut untuk memastikan efisiensi dan keamanan penggunaan metode ini dalam mengelola limbah cair batik secara luas.

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