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All Journal Jurnal Bahan Alam Terbarukan Jurnal Riset Veteriner Indonesia (Journal of The Indonesian Veterinary Research) UPEJ Unnes Physics Education Journal
Nurul Istiana, Nurul
Physics of Universitas Negeri Semarang, Indonesia
Agriculture, Biological Sciences & Forestry Education Materials Science & Nanotechnology Physics Veterinary

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ETHANOL PRODUCTION FROM FERMENTATION OF ARUM MANIS MANGO SEEDS (MANGIFERA INDICA L.) USING Saccharomyces Crevisiaea Masturi, Masturi; cristina, amelia; Istiana, Nurul; Sunarno, Sunarno; Dwijananti, Pratiwi
Jurnal Bahan Alam Terbarukan Vol 6, No 1 (2017): June 2017 [Nationally Accredited]
Publisher : Semarang State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v6i1.8139

Abstract

The increase of energy needs coupled with the decline in fossil fuel production, requires other sources of energy to meet those needs. One of the solution is using renewable energy. Bioethanol is one of the alternatives to the fossil fuel. This study was aimed at determining the exact mass of mango seeds in producing high grade bioethanol. Bioethanol was produced by fermentation of arum manis mango fruit seed using bakers yeast, Sacczharomyces cerevisiae.  The arum manis mango seeds were known to contain carbohydrate contents of 19.53%. The study was conducted by using different mass of mango seeds 25, 35 and 45 g resectively. The study showed that the samples of 25, 35 and 45 g produce ethanol with concentration of 4.78, 6.64 and 1.48%. These results indicated that the mass of 35 g mango seeds produced highest ethanol content.
PENERAPAN MODEL PEMBELAJARAN KOOPERATIF STAD UNTUK MENINGKATKAN PENGUASAAN KONSEP DAN KETERAMPILAN PROSES BELAJAR FISIKA SISWA SMP KELAS VIII Istiana, Nurul; Sarwi, Sarwi; Masturi, Masturi
UPEJ Unnes Physics Education Journal Vol 5 No 1 (2016)
Publisher : UPEJ Unnes Physics Education Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (928.998 KB) | DOI: 10.15294/upej.v5i1.12707

Abstract

Penelitian ini bertujuan untuk menentukan pengaruh penerapan model pembelajaran kooperatif STAD terhadap penguasaan konsep dan keterampilan proses belajar fisika siswa pada sub pokok bahasan getaran dan gelombang. Subjek penelitian adalah kelas VIII B SMP Negeri 2 Ambarawa. Teknik pengumpulan data menggunakan teknik tes, observasi dan dokumentasi. Analisis data menggunakan uji deskriptif presentase, uji gain dan uji t. Hasil penelitian menunjukkan bahwa ketuntasan belajar klasikal siswa sebesar 86,11% dengan kriteria tinggi. Data pre-test dan post-test dianalisis menggunakan Chi Kuadrat dan dinyatakan berdistribusi normal. Peningkatan penguasaan konsep ditunjukkan dengan <g>= 0,6 dan kriteria sedang. Hasil analisis uji t menyebutkan thitung = 7,477; ttabel= 1,697; thitung > ttabel sehingga Ho ditolak dan Ha diterima. Kelima aspek keterampilan proses belajar fisika siswa dianalisis menggunakan uji deskriptif dan dinyatakan meningkat secara signifikan. Dapat disimpulkan bahwa model pembelajaran kooperatif STAD dapat meningkatan penguasaan konsep dan mengembangkan keterampilan proses belajar fisika siswa SMP kelas VIII pada sub pokok bahasan getaran dan gelombang. This study aims to determine the influence of application cooperative learning type STAD to mastery concept and skills process of physics in sub material vibrations and waves. The subject of research is all students in VIII B SMP Negeri 2 Ambarawa. Collection of data using a technique tests, observations and documentation. Data analysis using a percentage descriptive test, gain test, and t-test. The result of research shows that exhaustiveness studying classical student at 86,11% with high criteria. Pre-test and post-test data were analysis using Chi Kuadrat and conclude as normal distribution. Enhancement of mastery concept shows with <g>= 0,6 and middle criteria. T-test analysis result shows tcount = 7,477; ttable = 1,697; tcount > ttable   so Ho rejected and Ha received. Five aspects of skills learning process of physics students are analyzed using descriptive test and shows increase as significant. The conclusion is cooperative learning model of STAD can increase the mastery concept and develop the skills learning process of physics students class VIII SMP in sub material vibrations and waves.
ETHANOL PRODUCTION FROM FERMENTATION OF ARUM MANIS MANGO SEEDS (MANGIFERA INDICA L.) USING Saccharomyces Crevisiaea Masturi, Masturi; cristina, amelia; Istiana, Nurul; Sunarno, Sunarno; Dwijananti, Pratiwi
Jurnal Bahan Alam Terbarukan Vol 6, No 1 (2017): June 2017 [Nationally Accredited]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v6i1.8139

Abstract

The increase of energy needs coupled with the decline in fossil fuel production, requires other sources of energy to meet those needs. One of the solution is using renewable energy. Bioethanol is one of the alternatives to the fossil fuel. This study was aimed at determining the exact mass of mango seeds in producing high grade bioethanol. Bioethanol was produced by fermentation of arum manis mango fruit seed using baker's yeast, Sacczharomyces cerevisiae.  The arum manis mango seeds were known to contain carbohydrate contents of 19.53%. The study was conducted by using different mass of mango seeds 25, 35 and 45 g resectively. The study showed that the samples of 25, 35 and 45 g produce ethanol with concentration of 4.78, 6.64 and 1.48%. These results indicated that the mass of 35 g mango seeds produced highest ethanol content.
The Effect of Garlic Extract on the Average Number of Lecocytes in Mice Infected with T. Evansi Kholilullah, Zainal Abidin; Ris, Adryani; Istiana, Nurul; Multazam, Muhammad; Yuliani, Mus Hilda
Jurnal Riset Veteriner Indonesia (Journal of The Indonesian Veterinary Research) VOLUME 6 No.1, JANUARY 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Trypanosomiasis is one of the most widespread diseases in the world. This disease is an infectious disease that often occurs in various types of livestock, especially horses, buffalo and cattle. Trypanosomiasis can cause weakness in infected animals, which can end in death in these animals. This disease is caused by infection with the blood parasite Trypanosoma evansi (T. evansi). The activity of this parasite is very fast. Shortly after entering the animal's body, T. evansi immediately enters the circulatory system and performs breeding activities that can cause damage to blood cells (Ressang, 1984; Wayan et.al 2013). Treatment of trypanosomiasis is currently still using commercial synthetic drugs which are quite expensive, and it has even been found that some substances are no longer effectively used to kill T. evansi. Treatment using basic ingredients derived from plants can be an alternative that needs attention. Garlic bulbs are known to have potential as anti-microbial agents. Its ability to inhibit microbial growth is very broad, including viruses, bacteria, protozoa, and fungi (Nok et al., 1996; Zhang, 1999; Pizorno and Murray, 2000; Yin et al., 2002). Garlic (Allium sativum L) has been widely studied and the results are known to contain active compounds including flavonoids and allicin which have antibacterial, anti-parasitic and antiviral effects (Londhe, 2011). The aim of this study was to determine the effect of giving garlic extract on the average number of white blood cells of mice infected with T. evansi. The study was conducted on thirty male mice of the DDY strain with a body weight of 25-30 g per head which were divided into six treatment groups. Each treatment used five mice as replicates, namely: the untreated group, as a normal control (K0); the group infected with T. evansi intraperitoneally at a dose of 103/0.3 mL; divided into several groups, namely those who were not given any treatment (K1, negative control), the group that was given trypanocidal (K2, positive control), the group that was given garlic extract at a dose of 50 mg/kgBW (K3); the group given garlic extract at a dose of 100 mg/kgBW (K4) and the group given garlic extract at a dose of 200 mg/kgBW (K5). In this study, it was shown that at the beginning of T. evansi infection it caused an increase in the average number of leukocytes in the group of mice that did not receive treatment (K1) and those given trypanocidal (K2), while the group of mice that received treatment with garlic extract showed a decrease in the number the mean leukocyte count (K3 and K4) or a non-significant increase in the mean leukocyte count (P<0.05) at K5.
Co-Authors Adryani Ris amelia cristina, amelia Chatarina Umbul Wahyuni Masturi Masturi Pratiwi Dwijananti Sarwi - Yuliani, Mus Hilda Zainal Abidin Kholilullah