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All Journal BIOTROPIC The Journal of Tropical Biology
Dyah Fitri Kusharyati
Program Studi Biologi, Fakultas Biologi, Universitas Jenderal Soedirman, Purwokerto, Indonesia
Agriculture, Biological Sciences & Forestry

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Karakteristik Bakteri Pendegradasi Bahan Pangan Asal Saluran Pencernaan Kecoa Amerika (Periplaneta americana) dari Pasar Tradisional Dwiana Muflihah Yulianti; Arif Rahman Hikam; Trisnowati Budi Ambarningrum; Taruna Dwi Satwika; Dyah Fitri Kusharyati; Hilmiyah Al'alawiyah
Biotropic : The Journal of Tropical Biology Vol. 7 No. 1 (2023): Biotropic, Volume 7 Nomor 1, 2023
Publisher : Program Studi Biologi, Fakultas Sains dan Teknologi, Universitas Islam Negeri Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/biotropic.v7i1.1662

Abstract

American cockroach (Periplaneta americana) is one of the most common pests found in houses, apartments, and public facilities such as markets. As vector insects, cockroaches have symbiosis with microorganisms. Some of these microorganisms can live in cockroaches' cuticles and digestive tracts. Besides being able to pose a danger to human health, the microbes in cockroach bodies also have the potential to cause food damage. This study aimed to determine the diversity of microorganisms originating from the digestive tract of the American cockroach and their potential to cause food spoilage. The research was conducted in several stages: sampling cockroaches at a traditional market, isolating bacteria from the digestive tract of cockroaches, qualitatively testing amylolytic, proteolytic, and lipolytic potentials, and characterizing bacterial isolate by morphologically and biochemically character. The results showed that there were 26 isolates of bacteria isolated from the digestive tract of American cockroaches from the market, 62.96% of the isolates were found to have the ability to degrade protein, 37.04% of the isolates had the ability to degrade starch, and 40.74% of the total isolates can degrade fat. These isolates had various morphological and biochemical characteristics. Bacterial isolates derived from American cockroaches from traditional markets have the potential to degrade food.
Keragaman Morfologi Bakteri Nitrifikasi Asal Kompos Kotoran Domba pada Peternakan Domba dengan Sistem Bedding Sri Martina Wiraswati; Hendro Pramono; Oedjijono; Dini Ryandini; Dyah Fitri Kusharyati; Meyta Pratiwi; Taruna Dwi Satwika; Dwiana Muflihah Yulianti; Saefuddin Aziz; Daniel Joko Wahyono; Rizal Khoirun Alfisah; Yuriza Eshananda; Budi Rustomo; Afifah Mariana
Biotropic : The Journal of Tropical Biology Vol. 7 No. 1 (2023): Biotropic, Volume 7 Nomor 1, 2023
Publisher : Program Studi Biologi, Fakultas Sains dan Teknologi, Universitas Islam Negeri Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/biotropic.v7i1.1695

Abstract

The application of compost bedding system on sheep farm is a technology to minimize the negative impact of sheep manure waste toward environment. The microorganisms which inhabit the compost bedding, especially nitrifying bacteria are expected to have significant role in odor emission reduction which become environmental problem around the sheep farm. This study aims to analyze the abundance and diversity of nitrifying bacteria of compost bedding obtained from sheep farm which have important role in reducing odor emission of ammonia. The 12 days, 1 and 1,5 months old of compost bedding samples were obtained from sheepfold, while 3 and 4 months old of compost samples were obtained from compost pile. Furthermore, nitrifying bacteria were isolated from compost samples by pour plate method using specific media for Nitrosomonas and Nitrobacter. The results indicated that compost bedding samples with different composting time duration displayed different abundance and diversity of nitrifying bacteria. The current study was successfully isolated 39 and 47 nitrifying bacterial isolates using specific media for Nitrobacter and Nitrosomonas, respectively. The highest diversity of nitrifying bacteria was gained from 12 days old compost bedding sample. Nitrifying bacterial isolates from compost bedding samples have significant role in odor emission declining as well as manure composting at sheep farm. The obtained bacterial isolates are also potentially to develop as bio-activator for compost bedding.
Co-Authors Afifah Mariana Arif Rahman Hikam Budi Rustomo Daniel Joko Wahyono Dini Ryandini Dwiana Muflihah Yulianti Hendro Pramono Hilmiyah Al'alawiyah Meyta Pratiwi Oedjijono Rizal Khoirun Alfisah Saefuddin Aziz Sri Martina Wiraswati Taruna Dwi Satwika Trisnowati Budi Ambarningrum Yuriza Eshananda