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All Journal Jurnal Veteriner INDONESIAN JOURNAL OF APPLIED PHYSICS Indonesian Journal of Chemistry Biosaintifika: Journal of Biology & Biology Education
Muchammad Yunus
Departemen Parasitologi Veteriner, Fakultas Kedokteran Hewan, Universitas Airlangga
Agriculture, Biological Sciences & Forestry Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology Physics Veterinary

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Morfometri dan Ultrastruktur Cacing Fasciola gigantica pada Sapi Donggala dan Sapi Bali di Kabupaten Berau, Kalimantan Timur (MORPHOMETRY AND ULTRASTRUCTURAL OF FASCIOLA GIGANTICA WORM IN DONGGALA AND BALI CATTLE IN BERAU DISTRICT, EAST KALIMANTAN) Muhammad Rofi' Prasetya; Nunuk Dyah Retno Lastuti; Lucia Tri Suwanti; Setiawan Koesdarto; Kusnoto Kusnoto; Muchammad Yunus
Jurnal Veteriner Vol 20 No 2 (2019)
Publisher : Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (180.319 KB) | DOI: 10.19087/jveteriner.2019.20.2.171

Abstract

Fasciolosis is one of the endemic parasitic diseases in Indonesia. Fasciola gigantica is the main species found to infect livestock, especially beef cattle. The purpose of this study was to analyze the morphometry and identify the ultrastructure morphology of the F. gigantica worm isolated from beef cattle in Berau abattoir. The F. gigantica worms were isolated from two cattle breeds, namely Donggala cattle and Bali cattle. Worm was stained by using carmine methode to analyze the morphometric of the worm and scanning electron microscopy to identify ultrastructure morphology. Morphometric of the worm was analysed with the one sample t-test and multidimensional scaling statistical methods. The results of the morphometric analysis showed that F. gigantica from both breeds had significant differences (P<0.05) between the parameters and based on multidimensional scaling analysis had similarities with F. intermedia from Iran. Based on scanning electron microscopy examination showed that F. gigantica from the Donggala cattle breed was infected with type 1 of F. gigantica while F. gigantica from the Bali cattle breed was infected with type 2 of F. gigantica based on ventral sucker, oral sucker, and spine. It can be concluded that F. gigantica found in beef cattle in Berau was type 1 F. gigantica (Donggala cattlebreed) and type 2 F. gigantica (Bali cattle breed) and similar with F. intermedia from Iran.
On the Mechanical and Thermal Properties of Poly(Vinyl Alcohol) – Alginate Composite Yarn Reinforced with Nanocellulose from Oil Palm Empty Fruit Bunches Ainul Maghfirah; Farah Fahma; Nurmalisa Lisdayana; Muchammad Yunus; Ahmad Kusumaatmaja; Grandprix Thomryes Marth Kadja
Indonesian Journal of Chemistry Vol 22, No 1 (2022)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.67881

Abstract

PVA-alginate hydrogel is a promising material for use in biomedical applications due to its desirable characteristics: biocompatible, durable, non-toxic, and low cost. However, the low gel strength of this composite limits its use in biomedical applications. This study aims to develop enhanced mechanical and thermal properties of poly(vinyl alcohol) PVA-alginate composite yarn by adding nanocellulose isolated from the sustainable oil palm empty fruit bunches (OPEFBs). The PVA-alginate composite yarns reinforced with nanocellulose were prepared with various nanocellulose contents (1 wt.%, 2 wt.%, and 5 wt.%). The composite's tensile strength exhibited an increasing trend with the addition of nanocellulose, while the elongation at break showed the opposite trend. Moreover, it was demonstrated that the composite's thermal degradation shifts to higher temperatures with the addition of nanocellulose. The observed activation energies for the thermal degradation calculated using the Coats-Redfern method exhibited a significant increment for the composites reinforced with nanocellulose. These results show that the addition of nanocellulose into the PVA-alginate matrix enhances the chemical and thermal properties of the resulting hydrogel. All these improvements have resulted from more abundant and robust hydrogen bonds generated by the nanocellulose presence.
Study on the Morphology of Fasciola gigantica and Economic Losses due to Fasciolosis in Berau, East Kalimantan Muhammad Rofi&#039; Prasetya; Setiawan Koesdarto; Nunuk Dyah Retno Lastuti; Lucia Tri Suwanti; Kusnoto Kusnoto; Muchammad Yunus
Biosaintifika: Journal of Biology & Biology Education Vol 11, No 1 (2019): April 2019
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v11i1.18201

Abstract

Fasciolosis is one of the endemic parasitic diseases in Indonesia and causes significant economic losses. Fasciola gigantica is the main species found to infect livestock. This research aimed to describe the morphology of F. gigantica histologically using hematoxylin and eosin staining as well as ultrastructure morphology using scanning electron microscopy (SEM). Besides, the study was also carried out to determine the prevalence and estimation of economic losses due to fasciolosis in Berau Regency. The histological identification of flukes morphology found several organs including oral sucker (OS), ventral sucker (VS), cirrus (C), genital pore (GP), uterus (U), ovary (O), tegument (Te), testis (T), and caecum (C). In this study, ultrastructure morphology was divided into anterior and midbody region. In the anterior region, there are an oral sucker (OS) with a diameter of 304.5 µm and a ventral sucker (VS) with a diameter of 571 µm. It was also found the anterior spine with a width of 25.4 µm and a height of 22.8 µm. In the midbody, the spine has a width of ± 26.7 µm and a length of ± 38.9 µm leading posteriorly. Postmortem examination results showed that the prevalence of fasciolosis in Berau regency was 21.65% or 34 of 157 cows which were positive with an estimated loss of 228,656,475.00 IDR/16,450 USD (1 USD=13,900 IDR). The amount of loss due to fasciolosis must be a particular concern in carrying out control and prevention measures. Histology and ultrastructure morphology can become a reference in the development of anthelmintic testing that has been used so far in Indonesia.
The Spatial Arrangement of The Electric Field in the Needle-Plate Electrospinning Ahmad Kusumaatmaja; Muhamad Nasrudin Manaf; Shiddiq Nur Hidayat; Kuwat Triyana; Farah Rahma; Grandprix T. M. Kadja; Muchammad Yunus
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 13, No 2 (2023): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v13i2.67191

Abstract

The electric field distribution of the Neddle-Plate (NP) electrospinning set up has reported due to the simple classical electrodynamics solutions. The charge is assumed to distribute uniformly in the needle (nozzle) and the collector (plate). The electric field has an influence only in the early stage of the electrospinning process. The electric field and the viscosity of the jet fluid have caused the bending of the straight jet. The high viscosity of the fluid can preserve the straight jet length much longer. The electric field gives the initial angular momentum of the jet due to the whipping motion of the jet. For the area away from the nozzle, the electric does not influence the whipping motion. Then the whipping motion solely due to the influence from the charge repulsion of the jet fluid and the evaporation of the solvent.
Co-Authors Agung Setia Batubara Ahmad Kusumaatmaja Ahmad Kusumaatmaja Ainul Maghfirah FARAH FAHMA Farah Rahma Hani Plumeriastuti Hani Plumeriastuti Ilham Zulfahmi Irfannur Kadja, Grandprix Thomryes Marth Kusnoto Kusnoto Kuwat Triyana Lucia Tri Suwanti, Lucia Tri Muhamad Nasrudin Manaf Muhammad Rofi&#039; Prasetya Muhammad Rofi' Prasetya Muliari Nunuk Dyah Retno Lastuti Nunuk Dyah Retno Lastuti Nurmalisa Lisdayana Setiawan Koesdarto Shiddiq Nur Hidayat Yeni Dhamayanti Yusrizal Akmal Zhaza Afililla