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All Journal BERKALA SAINSTEK Jurnal Sains dan Teknologi Alchemy : Journal of Chemistry Jurnal Bahan Alam Terbarukan JST ( Jurnal Sains Terapan ) Communications in Science and Technology Chemistry Indonesian Journal of Chemical Research Analit: Analytical And Environmental Chemistry
Rahmayanti, Maya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Removal of remazol red dye in batik wastewater using natural coagulant of moringa seeds Yuniawati, Ulfa Arisca; Rahmayanti, Maya
Analit : Analytical and Environmental Chemistry Vol. 8, No. 01 April (2023) Analit: Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v8i1.2023.p33-44

Abstract

Remazol red dye in batik wastewater can cause damage to the aquatic environment and is toxic. This study aims to reduce the concentration of remazol red dye and COD content in batik wastewater by bio-coagulation. The natural coagulant used in this study was moringa seeds. The content of coagulant functional groups in Moringa seeds was characterized using a Fourier Transform Infrared (FTIR) spectrophotometer. Biocoagulation was carried out on variations in the acidity of batik wastewater, i.e., at pH 2,3,4,5, and 6. The results of the FTIR characterization of papaya seeds after biocoagulation showed a shift in the wave numbers of the OH, N=N, and C-O groups. The optimum pH for the biocoagulation process of remazol red dye occurs at pH 4 with a % reduction of remazol red dye of 91.24 % and a decrease in COD value of 71.13 %. Keywords: remazol red, coagulation, wastewater, batik, Moringa seeds
OPTIMASI pH DAN WAKTU REAKSI ADSORPSI INDIGOSOL BLUE O4B MENGGUNAKAN ASAM HUMAT TERMODIFIKASI MAGNETIT (HA/Fe3O4) Fauzi, Rafida Ati; Rahmayanti, Maya
Analit : Analytical and Environmental Chemistry Vol. 5, No. 02 October (2020) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v5i2.2020.p135-142

Abstract

Struktur kimia adsorben asam humat sangat dipengaruhi kondisi pH. Gugus fungsi -COOH dan -OH asam humat mudah terprotonasi pada suasana sangat asam dan terdeprotonasi dengan kenaikan pH. Jika asam humat diaplikasikan sebagai adsorben zat warna indigosol blue O4B maka interaksi yang terjadi di antara keduanya  dipengaruhi oleh kondisi keasaman medium. Penelitian ini bertujuan untuk mempelajari kondisi pH dan waktu reaksi optimum interaksi antara indigosol blue O4B dengan adsorben asam humat hasil isolasi tanah gambut Sumatera yang dimodifikasi dengan magnetit (HA/Fe3O4). Adsorpsi indigosol blue pada HA/Fe3O4 dilakukan dengan metode batch pada rentang pH 4-7 dengan variasi waktu 30, 45, 60, 75 dan 100 menit.  Hasil penelitian menunjukkan bahwa interaksi Fe3O4-AH dengan zat warna indigosol blue O4B optimum pada pH 5 dengan waktu optimum 45 menit.http://dx.doi.org/10.23960/aec.v5.i2.2020.p135-142 
ADSORPSI-DESORPSI ZAT WARNA NAFTOL BLUE BLACK MENGGUNAKAN ADSORBEN HUMIN HASIL ISOLASI TANAH GAMBUT RIAU, SUMATERA Fuadah, Silvia Riqotul; Rahmayanti, Maya
Analit : Analytical and Environmental Chemistry Vol. 4, No. 02 October (2019) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v4i2.2019.p59-67

Abstract

Telah dilakukan adsorpsi-desorpsi zat warna naftol blue black  menggunakan  adsorben humin hasil isolasi tanah gambut Riau, Sumatera. Metode adsorpsi belum sepenuhnya menyelesaikan masalah lingkungan karena adsorben yang sudah digunakan dapat menjadi limbah baru, sehingga diperlukan proses desorpsi agar adsorben dapat digunakan kembali. Nilai persen adsorpsi zat warna naftol blue black pada penelitian ini sebesar 75,91%. Proses desorpsi menggunakan agen pendesorpsi NaCl dengan variasi konsentrasi 0,1, 0,2, 0,3, 0,4, dan 0,5 M dan desorpsi zat warna naftol blue black optimum pada konsentrasi NaCl 0,3 M dengan persen desorpsi sebesar 11,65%.http://dx.doi.org/10.23960/aec.v4.i2.2019.p59-67
KAJIAN DESORPSI ZAT WARNA INDIGOSOL BLUE DARI ADSORBEN HUMIN HASIL ISOLASI TANAH GAMBUT RIAU, SUMATERA Ekowati, Girda Wahyu; Rahmayanti, Maya
Analit : Analytical and Environmental Chemistry Vol. 4, No. 02 October (2019) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aec.v4i2.2019.p68-75

Abstract

Telah dilakukan penelitian tentang  desorpsi zat warna indigosol blue pada adsorben humin hasil isolasi tanah gambut Riau, Sumatera. Desorpsi dilakukan dengan menggunakan agen pendesorpsi HCl dengan variasi konsentrasi 0,5; 1,0; 1,5; 2,0 M dan tanpa menggunakan agen pendesorpsi. Setelah proses adsorpsi, terjadi pergeseran bilangan gelombang pada puncak serapan gugus fungsional adsorben humin yang menunjukkan adanya gugus aktif dari zat warna indigosol blue yang terserap pada saat adsorpsi. Interpretasi spektra FT-IR setelah desorpsi, terjadi pergeseran bilangan gelombangyang menunjukkan bahwa gugus aktif dari zat warna indigosol blue telah terdesorpsi. Konsentasi optimum desorpsi zat warna indigosol blue pada adsorben humin pada 1,5 M .http://dx.doi.org/10.23960/aec.v4.i2.2019.p68-75
Edible Film Application of Mung Bean Starch with the Addition Glycerol as a Button Mushrooms Packer Firdausi, Karima Mumtaz; Sedyadi, Endaruji; Rahmayanti, Maya; Warsito, Gita Miranda
ALCHEMY:Journal of Chemistry Vol 13, No 2 (2025): ALCHEMY: JOURNAL OF CHEMISTRY
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/al.v13i2.31684

Abstract

The research on the production of edible films from mung bean starch with the addition of glycerol as packaging for button mushrooms aims to analyze the effect of varying glycerol concentrations on the physical and mechanical properties of the edible film, as well as the shelf life of button mushrooms in terms of weight loss. The stages of this research include the production of mung bean starch, the creation of edible films, characterization of the starch and edible films, and their application to button mushrooms using weight loss tests. The edible films were made with glycerol concentrations of 6.3%, 12.6%, and 18.9% of the total starch weight used. The results showed that the edible films at each glycerol variation exhibited a reduction in weight loss that was generally lower compared to the weight loss of the control button mushrooms.
Co-Authors Abdillah, Guliston Afifah, Ika Qurrotul Ardiyanto, Muhammad Malik Firdaus Dewi, Vina Melinda Inka Ekowati, Girda Wahyu Endaruji Sedyadi Fauzi, Rafida Ati Firdausi, Karima Mumtaz Fuadah, Silvia Riqotul Paweni, Astuti Pembayun, Sekar Wangi Retno Prandini, Masyithah Nisvi Santi, Gita Citra Setiani, Ugi Asih Sri Juari Santosa Sutarno Sutarno Warsito, Gita Miranda Yahdiyani, Atika Yuniawati, Ulfa Arisca