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Journal : Indonesian Journal of Science and Technology

Optimization and Interpretation of Heat Distribution in Sterilization Room Using Convection Pipe Abdurrahman, Abdurrahman; Umam, Rofiqul; Irzaman, Irzaman; Palupi, Endah Kinarya; Saregar, Antomi; Syazali, Muhamad; Junaidi, Rahmad; Wahyudianto, Benny; Adi, Langit Cahya
Indonesian Journal of Science and Technology Vol 4, No 2 (2019): IJOST: VOLUME 4, ISSUE 2, 2019
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v4i2.18177

Abstract

In mushroom cultivation of white oyster mushroom (P. ostreatus), problems in the contamination during the production are typically found. This contamination is due to the issue in controlling temperature during the media sterilization for growing the fungus (bag-log). This suboptimal sterilization causes unwanted bacteria and spores to grow. To reduce the amount of contamination, the purpose of this study was to demonstrate and evaluate the temperature distribution using one convection pipe with diameter of 6 and 8 cm. The fuel used for this sterilization process is rice husk. Sterilization itself aims to kill other unwanted bacteria and spores on the bag-log. Sterilization was done by traditional steaming bag-log drums arranged in four rows upwards for 6 hours. Convection pipes were built in drums. The steamer was done by performing two retrievals of data. From the experiment results, the use of convection pipe of 8 cm was better than the convection pipe of 6 cm. This is shown from the amount of fungal contamination in convection pipes were less in 8. The result of temperature measurement using dual laser infrared thermometer was also completed and interpreted using Matrix Laboratory with interpolation method to get heat distribution result.
Utilization of Stem Bark and Leaves of Kluwih (Artocarpus Altilis Park) as an Anti-Mosquito Repellent: A Case Study of Total Mosquito Mortality (Anopheles Sp) Kurniawan, Betta; Puspita, Laila; Kurnia, Yogi; Husna, Ismalia; Rahmat, Ali; Umam, Rofiqul; Andriana, Bibin B.; Jermsittiparsert, Kittisak
Indonesian Journal of Science and Technology Vol 5, No 3 (2020): IJOST: VOLUME 5, ISSUE 3, 2020
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v5i3.25370

Abstract

The purpose of this study was to demonstrate an alternative solution as an insecticide from Indonesian natural ingredients. We investigated the potential use of Artocarpus altilis park (known as kluwih plants in Indonesia) for an anti-mosquito repellent because it contains flavonoids and saponins. The use of this type of insecticide is harmless, inexpensive, and largely available in Indonesia. In the experiment, we extracted bark and leaves of kluwih to obtain insecticidal material to repel Anopheles sp. To ensure the precise extraction and insecticidial effect, the experiments were conducted four times with three repetitions. For each experiment, we used 8.4 mL with the concentrations of 20, 30, and 40% of flavonoid. The results showed that the higher the concentrations of bark and leaf extracts of Artocarpus altilis park the higher the mortality rate of Anopheles sp is.
Co-Authors Abd. Rasyid Syamsuri Abdul Mutolib Abdurahman Abdurrahman Adi, Langit Cahya Adytama, Alhamdy Afiah, Irma Nur Ahmad Said Al-Hijrah, Al-Hijrah Ali Rahmat Andika Eko Prasetiyo Andika Eko Prasetiyo, Andika Eko Andiyan Andriana, Bibin B. Anggraini, Atika Annisa Nurhuda Romadhona Antomi Saregar Ardian Asyhari Aziza Anggi Maiyanti Bayu A. Sadjab Belista Gunawan Betta Kurniawan, Betta Bonno Andri Wibowo Bumi, Philosofi Setia Cengiz, Korhan Dewa, Parama Kartika Dewa, Parama Kartika Dewi Lengkana Dixit, Aparna Endah Kinarya Palupi Endah Kinarya Palupi Endah Kinarya Palupi Endah Kinarya Palupi Felga Zulfia Rasdiana Fitria Lestari Fitria Lestari Fredi Ganda Putra Fujiani, Dwi Haerul Anwar Handayani, Tri Wahyu Harnomo, Fajar Ikhwan Hartati, Niken Sri Hartono Hartono Hasan Said Tortop Hasan Said Tortop Hasan Said Tortop Hesti Herliantari Hirotaka Takahashi Hurien Helmi Husna, Ismalia I Putu Tedy Indrayana Ikah N. P. Permanasari Ikhsan Maulidi Ilma Ridhona Imama, Khoirunnisa Iqbal, Mochamad Iresha, Fajri Mulya Irma Nur Afiah Irwandani Irwandani Irzaman, Irzaman Iskandar Tsani Iskandar Tsani, Iskandar Iwamony, Steven Jermsittiparsert, Kittisak Kasam Kasam, Kasam Khoirunnisa Imama Khusnul Yakin Kittisak Jermsittiparsert Kurnia, Yogi Laila Puspita Laili, Ummiy Fauziyah Lengkana, Dewi Lusi Anggraini Mada Sanjaya WS Maharani, Fareza Chandri Michalska-DomaƄska, Marta Mochamad Iqbal Muawanah Muawanah Muhamad Syazali Muhamad Yasin Muhammad Nafian Muliadi Ramli Munifah Munifah Munifah Munifah, Munifah Muniroh, Luthfiyatul Nanda Ridki Permana Nangkula Utaberta Nurhanurawati Nurhanurawati Nurhanurawati Nurhanurawati Palupi, Endah Kinarya Panse, Vishal R puspitarum, deska lismawenning Rahma Diani Rahma Diani, Rahma Rahmad Junaidi, Rahmad Rahmi Ramadhani Rashidi Abdull Manap, Mohd Riana, Ulfa Ridhona, Ilma Ridwanulloh, M. Ubaidillah Rika Rahmawati Rika Rahmawati Rizka Dwi Saputri Rizqi Prastowo Rohim, Miftahul Romadhona, Annisa Nurhuda Saiful*, Saiful Santi Widyawati Saxena, Arti Siregar, Rahmat Nawi Sismanto Sismanto Steven Iwamony Sugeng Sutiarso Sugeng Sutiarso Sumarni, Tita Cardiah Suparman Suparman Suparman Suparman Syamsul Huda Syamsul Huda Tortop, Hasan Said Triani Triani Vina Apriliani Wahyudianto, Benny Wirani, Ayu Puspa Yakin, Khusnul Yasin, Muhamad Yetri Hasan Yudha Satya Perkasa Yudha Satya Perkasa, Yudha Satya Zakir Sabara