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All Journal PROSIDING SEMINAR NASIONAL Bioma : Berkala Ilmiah Biologi
Sulistyaningtyas, Ayu Rahmawati
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Agriculture, Biological Sciences & Forestry Education

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PHOTODEGRADATION OF Cr (VI) IN VARIOUS CONCENTRATION OF ZSM-5 IMPREGNATED TIO2 Alfiani, Yulia; Mukaromah, Ana Hidayati; Sulistyaningtyas, Ayu Rahmawati
PROSIDING SEMINAR NASIONAL & INTERNASIONAL 2018: SEMINAR NASIONAL PENDIDIKAN SAINS DAN TEKNOLOGI
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (75.286 KB)

Abstract

Nowadays,water could be contaminated by heavy metals such as chromium (Cr). Chromium toxicity depends on its state of valence. Cr (VI) as highly mobile is toxic, while Cr (III) as a less mobile is less toxic. Potentially, Cr (VI) content   can be reduced by ZSM-5 impregnated TiO2. TiO2  as a catalyst can activated and modified zeolite with active metal materials. The impregnation between ZSM-5 and TiO2 should be reduce Cr (VI) content in water. The objective of this study was to assess concentration of ZSM-5 impregnated TiO2 which  most  effectively  for  decreasing  Cr  (VI)  content.  Decreasing  Cr  (VI) content in various concentration of ZSM-5/TiO2  was measured using UV-Vis spectrophotometer. The results showed that variation of zeolite concentration had an effect on decreasing Cr (VI) content in water. Photodegradation of Cr (VI) in various concentrations (0.25%;0.50%; 0.75%; 1.00%; 1.25% w/v) respectively are 16.99%; 18.84%; 24.83%; 30.82%; 36.14%. Concentration 1.25% w/v of ZSM-5 impregnated TiO2   as the highest to decrease Cr (IV) content. On the other hand, Using TiO2  or ZSM-5 only was showing lower percentage of Cr (VI) reduction which compared ZSM-5/TiO2. In conclusion, More higher concentration ZSM-5/TiO2  caused   faster photodegradation and higher percentage decrease of Cr (VI) content in water. Keywords: Concentration, Cr (VI),  Photodegradation, TiO2, ZSM-5
Produksi Miselium Jamur Ling ZHI (Ganoderma lucidum) Dalam Medium Air Kelapa Tua Dan Tauge Extract Broth Dengan Metode Kultur Terendam Teragitasi Sulistyaningtyas, Ayu Rahmawati; Suprihadi, Agung
Bioma : Berkala Ilmiah Biologi Vol. 19, No. 1, Tahun 2017
Publisher : Departemen Biologi, Fakultas Sains dan Matematika, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.739 KB) | DOI: 10.14710/bioma.19.1.58-61

Abstract

Jamur ling zhi (Ganoderma lucidum) sudah mulai dibudidayakan secara intensif di Indonesia. Masalah yang sering dihadapi dalam budidaya jamur ling zhi adalah kesulitan dalam penyediaan bibit. Proses penyediaan bibit jamur biasanya dilakukan secara konvensional menggunakan media agar. Metode konvensional akan membutuhkan biaya dan waktu produksi yang banyak sehingga diperlukan metode pembibitan baru yaitu kultur terendam teragitasi. Kultur terendam miselium dari kultur murni langsung dapat ditanam pada media tanam jamur. Penelitian ini bertujuan untuk mengetahui perbandingan produksi miselium jamur ling zhi dalam medium air kelapa tua dan tauge extract broth dengan metode terendam teragitasi. Parameter  utama penelitian meliputi berat kering miselium, sedangkan parameter pendukung meliputi suhu inkubasi, pH medium awal dan akhir inkubasi. Penelitian dilakukan dengan rancangan acak lengkap faktorial (RAL) dengan faktor medium. Hasil penelitian menunjukkan bahwa produksi miselium jamur ling zhi (G. Lucidum) dalam medium air kelapa tua lebih tinggi dibandingkan medium tauge extact broth. Kata kunci: Ganoderma lucidum, Medium, Air Kelapa Tua, Tauge Extract Broth, Kultur Terendam Teragitasi
Co-Authors A.A. Ketut Agung Cahyawan W Alfiani, Yulia Ana Hidayati Mukaromah Ernanto, Aditya Rahman Fuad, Hayatun Hapzi Ali Nur Hidayah Silvestre, Richard David Sri Darmawati Sri Sinto Dewi Stalis Norma Ethica