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All Journal International Journal of Advances in Applied Sciences Jurnal IPTEK KOVALEN: Jurnal Riset Kimia Chemistry in Education Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan JKTP: Jurnal Kajian Teknologi Pendidikan Jurnal Administrasi dan Manajemen Pendidikan Chemistry Indonesian Journal of Chemical Research Jurnal Fisika : Fisika Sains dan Aplikasinya Fullerene Journal of Chemistry Stannum : Jurnal Sains dan Terapan Kimia JAMP : Jurnal Administrasi dan Manajemen Pendidikan Indonesian Journal for Social Responsibility International Journal of Islamic Khazanah Journal of Engineering Science and Technology Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS)
Muhammad Roy Asrori
Universitas Negeri Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Journal : International Journal of Advances in Applied Sciences

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Sono-hydrolysis of banana stem midrib using HY-zeolite from natural sand-based silica as a catalyst Sumari Sumari; Aman Santoso; Muhammad Roy Asrori; Yana Fajar Prakasa; Dinar Rachmadika Baharintasari
International Journal of Advances in Applied Sciences Vol 11, No 4: December 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (395.964 KB) | DOI: 10.11591/ijaas.v11.i4.pp306-311

Abstract

Banana stem midrib has the potential as a glucose source through catalytic hydrolysis assisted by ultrasonic (sono-hydrolysis). Besides, natural sand-based silica is the potential as raw material for zeolite synthesis. The purpose of the study was to do two things: i) characterize HY-zeolite made from natural sand-based silica and ii) determine whether HY-zeolite is effective for sono-hydrolysis of banana stem midrib. There was a total of four processes that were carried out, including i) the extraction of silica, ii) the synthesis of HY zeolite, iii) the hydrolysis process, and iv) the glucose content test. The results of the study were gained two things: i) The findings of X-ray fluorescence (XRF), X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR) on HY-zeolite are 2.3 Si/Al, obtained 2 theta and d-spacing data similarities for HY-zeolite, and formed T-O-T, O-T-O (T=Si/Al), and Si-OH groups respectively; and ii) HY-zeolite with ultrasonic was effective for hydrolyzing cellulose into glucose at maximum temperature and time, 55 °C and 6 hours.
Silica extract from Malang beach sand via leaching and sol-gel methods Sumari Sumari; Muhammad Roy Asrori; Yana Fajar Prakasa; Dinar Rachmadika Baharintasari; Aman Santoso
International Journal of Advances in Applied Sciences Vol 12, No 1: March 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v12.i1.pp74-81

Abstract

Many silica minerals are found in beach sands. One of its beach sands is in Bajul Mati beach sand which contains high silica. The silica can be extracted using existing methods, but it is less environmentally friendly. In this research, the extracting process of silica from the sand of Bajul Mati beach (South of Java-Indonesia) has been carried out through a method that is low-cost and more environmentally friendly. The purpose of this study was to characterize extracted silica with instrumentation results and economic analysis. The method of extracting silica from beach sand was via leaching and sol-gel methods: i) leaching with 7M HCl,ii) the formation of clear sodium silicate solution (Na2O.SiO2),iii) sol-gel: sodium silicate solution titrated with oxalic acid (H2C2O4) 1 M until pH 6 was obtained and silicite Si(OH)4 was formed, and iv) characterization with X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier transform infrared (FTIR), and scanning electron microscopy (SEM) with economic analysis. The result showed that extracted silica has a cristobalite structure based on XRD analysis. The purity of silica (% Wt Si) reached 93.9% based on XRF analysis. FTIR analysis has identified silanol, siloxic, and siloxane groups. The SEM analysis shows that silica (SiO2) particles tend to form agglomerations about ∼1 μm. In addition, economic analysis results showed that this method will support implementation in the future, so silica has been produced by this developed method.
Analysis of ice creams from goat milk kefir and red dragon fruit Santoso, Aman; Radiati, Lilik Eka; Damayanthi, Evy; Armaini, Armaini; Mujahidah, Amiroh Nabilah; Sanjaya, Eli Hendrik; Muntholib, Muntholib; Asrori, Muhammad Roy
International Journal of Advances in Applied Sciences Vol 14, No 2: June 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v14.i2.pp481-489

Abstract

Ice cream from goat milk kefir is lower lactose than cow milk kefir. Combining goat milk kefir with red dragon fruit in ice cream formulations can improve the quality of the product. This study aims to determine the sensory characteristics, total solid, total flavonoid, and antioxidant activity of goat kefir-based ice cream flavored red dragon fruit as quality evaluation. The study used a completely randomized design with 4 treatments and 3 replications. The treatment was the ratio of goat kefir and dragon fruit, including 40:60, 50:50, 60:40, and 70:30 in the ice cream mixture. 30 panelists participated in the organoleptic test. Total solid testing referred to SNI 01-3713-1995. Determination of total flavonoid content was carried out by forming AlCl3 complexes spectrophotometrically and assaying antioxidant activity used 2.2-diphenyl-1-picrylhydrazyl (DPPH) method. The results showed that there was no significant difference in the organoleptic test for taste, color, and texture. The results of the total solids test showed that the higher the addition of goat kefir to ice cream, the lower the total solids produced. While the addition of goat kefir increased the total flavonoids in ice cream. The antioxidant activity with the best formulation of 50:50 was categorized as moderate level, which is 136.59 ppm.
Co-Authors Agustina, Nur Indah Ahmad Faikul Anam Ahmad Nashih Anis Zubaidy Aman Santoso Anam, Ahmad Faikul Andyka Medarda Pradana Anugrah Ricky Wijaya Armaini, Armaini Bambang Wahyudi Deni Ainur Rokhim Dinar Rachmadika Baharintasari Dinar Rachmadika Baharintasari Eli Hendrik Sanjaya Evy Damayanthi Firda Amalia Fitriyah, Zakiyatul Habiddin Hayuni Retno Widarti Irsyadatun Ni’mah Januarti, Wenny Lilik Eka Radiati Mahmudah, Siti Nur Mujahidah, Amiroh Nabilah Muntholib Ni’mah, Irsyadatun Nur Chairini Peni, Ristiwi Prakasa, Yana Fajar Putra, Arif Putra, Moch Chesa Nur Hidayat Arif Retnosari, Rini Rizky, M Sinta Nur Laila Sumari Sumari Wahyudi, Asnan Wele, Amonius Regino Yana Fajar Prakasa Yana Fajar Prakasa Yudhi Utomo Zakiyatul Fitriyah Zubaidah R, Zubaidah Zubaidah Zubaidah Zubaidy, Ahmad Nashih Anis