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Aplikasi Kitosan dari Litopenaeus vannamei dan Limbah Baglog dari Pleurotus ostreatus untuk Mendekolorisasi Limbah Cair Batik Oktavia, Swastika; Rohmah, Siti; Novi, Cory
Jurnal Penelitian Pendidikan IPA Vol 10 No 2 (2024): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i2.5859

Abstract

The batik sector generates wastewater containing pigment residue, posing a significant environmental threat if not managed effectively. L. vannamei shells yield chitin, convertible to chitosan for water treatment. Baglogs, comprising mycelium and cellulose, serve as a viable adsorbent. The purpose of this study was to learn about the use shell of L. vannamei and P. ostreatus baglog waste with different lengths of time to decolorization batik industry waste water. The method for testing involves deproteinization with NaOH 1M, demineralization with HCl 2M and deasetylation with NaOH 60%. Chitosan L. vannamei and baglog P. ostreatus (2:25 g/g) waste were put into a container containing 500 mL of batik wastewater with colour content with variations of 0, 12, 24, 48, 72, 96, and 120 hours. Further, the capacity of adsorption chitosan and baglog waste are determined using a UV-Vis spectrophotometer during the decolorization process in batik industry waste water using shell of L. vannamei and P. ostreatus baglog waste are 96 hours with a decolorization rate of 90.05%.
Chemical Profiling of Essential Oil Extracted from Fresh Walang Leaves (Etlingera walang (Blume) R. M. Sm.), an Indigenous Species in Banten, Indonesia Novi, Cory; Apriliane, Keukeu Listia; Oktavia, Swastika
Bioeksperimen: Jurnal Penelitian Biologi Vol 10, No 1: March 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v10i1.22998

Abstract

Essential oils are a group of secondary metabolite compounds that have a distinctive aroma and are volatile. Walang leaves are one of the plants suspected of having essential oil content. This study aims to determine the constituent components of essential oil compounds from fresh walang leaves. The method used to extract essential oil from fresh walang leaves is steam distillation. The essential oil produced was analyzed using Gas Chromatography Mass Spectroscopy (GC-MS). The results showed that the essential oil of fresh walang leaves contained 15 components of essential oil compounds and 2 main components of essential oil compounds, namely: Acetic acid (CAS) Ethylic acid 24.52%, 1,2 Benzenedicarboxylic acid, bis(2-methylpropyl) ester (CAS) Isobutyl phthalate 21.09%.