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Journal : Indonesian Journal of Science and Technology

Isolation and Identification of Hydrocarbon Degradation Bacteria and Phosphate Solubilizing Bacteria in Oil Contaminated Soil in Bojonegoro, East Java, Indonesia Rahayu, Yuni Sri
Indonesian Journal of Science and Technology Vol 4, No 1 (2019): IJOST: VOLUME 4, ISSUE 1, 2019
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ijost.v4i1.14923

Abstract

Petroleum is a mixture of hydrocarbon complexes with organic compounds from sulfur, oxygen, nitrogen and metal-containing compounds. These organic compounds can be used as substrate for bacterial growth. This study aimed to isolate and identify hydrocarbon degrading bacteria and phosphate solubilizing bacteria in oil-contaminated soil in Bojonegoro. This study used an exploration method to find each of the two types of hydrocarbon degrading bacteria and phosphate solubilizing bacteria from soil samples in Bojonegoro that contaminated by oil. Identification of isolates bacterial included macroscopic observations of bacteria, gram staining on bacterial cells and physiological tests. Macroscopic observations include the form of colonies, colony diameter, colony color, colony edge, and elevation. The physiological test using Microbact Identification System to determine the physiological characteristics of bacteria so that genera and types of bacteria can be known. The identification of organisms was based on changes in pH and use of the substrate. The results of data analysis were obtained from five types of bacteria from soil samples that contaminated by oil which were successfully isolated. After identification of species was done, four species of bacteria were obtained, namely Pseudomonas pseudomallei, Pseudomonas fluorescens-25, Flavobacterium odoratum, and Enterococcus sp.
High Unemployment Records of Graduated Students in the Development of Urban Agriculture in the Gaza Strip Al-Najar, Husam; Khalil, Hadi; Rahayu, Yuni Sri
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.v4i2.18176

Abstract

Urban agriculture plays a significant role in national development by contributing towards food security, job creation, and income generation. This study aims to assess the effect of unemployment records in graduated students in the recovery of the agricultural sector and the input to food security. A combination of both quantitative and qualitative research methods was employed in this study. In the quantitative design, 129 randomly selected urban farmers, completed the self-administered close-ended questionnaires, whereas the statistical analysis presents the socio-demographic, economic, and other aspects of the households. Based on the study result, around 2500 students graduated annually from 29 high educational institutes in Gaza Strip. The unemployment rate is around 41%, therefore the graduated students found that urban agriculture is contributing to create more jobs opportunities and improving household income. The analysis showed that 18% of the urban farmers are illiterate, 31% passed primary education, 25% passed secondary education, and 26% are holding university degrees in different fields. It is highly recommend to include urban agriculture in the future plans of the ministry of labours, ministry of agriculture, and all relevant institutions to overcome the high unemployment records and to alleviate poverty in Gaza.
Co-Authors Abadi Abadi Agustin, Rosyida Agustina Pertiwiningrum Ainun, Irma Nur Al-Najar, Husam Andini, Medina Andriani, Lutfi Tri Anisah, Fitri Nisaul Anugrah Agustina Ardella Ivana Safitri Asmara, Rani Asri, Mahanani Tri Astuti, Wahyuni Puji Atweh, Bill Aunur Rofiq Azis, Mohammad Budi Jatmiko Budiono, Djoko Cahyanti, Amin Dwi Dafa Muda Arsena Dwi Suryaningsih Dzurrotul Firdaus Elga Hary Saputro ELOK SUDIBYO Endang Susantini Endang Susantini ENDANG SUSANTINI Endarto, Otto Erman Erman Febriati, Nuzullia Dwi Fernanda Dwi Febriarti Fida Rachmadiarti Firdaus, Dzurrotul Fitriyaningsih, Sari Greatania Ines Windari Handayani, Antika Yekti Herlina Fitrihidajati Hilda Malinda Mulya Fitri I GUST MADE SANJAYA Inayah Fitri Jannah, Nurdiana K. Karimah Karimah Karunia Hidayati, Rizki K Khalil, Hadi Kirana, Tjandra Kurniawati, Devi Leny Yuanita Leny Yuanita Lestari, Naning Dwi Listyoningsih, Elmi Luspita Wahyuni Lutfiana Rakhma Ningtyas Machfiroh, Aprilianti Nindya Madlazim Madlazim Madlazim Madlazim Manasikana, Arina Maria Ulfah Mohamad Nur Mohamad Nur Muchlis Muchlis Muhammad Azimul Anshar Muhammad Thamrin Hidayat Muhammad Thamrin Hidayat MUSLIMIN IBRAHIM Mustikawati, Ratna Diyah Novita Kartika Indah Nur Azizah Nurul Fadilah, Nurul Pertiwiningrum, Agustina Pinareswati, Arlina Dwi Pradnyo Wijayanti Pramudita, Intan Cahya Prasetya, Indra Adi Wira Putra, Armansyah Putri, Rezza Khumala Hariyanto Raharjo Raharjo Rahayu, Mahmudha Dwi Rahayu, Tanaya Juwita Ramadhani, Desianes Rani Asmara Ratna Diyah Mustikawati Ratna Lestari Ratna Lestari Reni Cindra Kusuma Rohmah, Fuyudur Rosyana Rosyana Rosyana, Rosyana Rosyida Agustin Rudiana Agustini Rusly Hidayah Sabtiawan Sabtiawan Sabtiawan, Sabtiawan Samawati, Zulfa Saputro, Elga Hary Sari Kusuma Dewi Siti Nur Azizah, Siti Nur Sri Poedjiastoeti Sri Poedjiastoeti Sri Sumarti Sumarti, Sri Suryaningsih, Dwi Susiyawati, Enny Suyatno Sutoyo TITIN SUNARTI Tjandra Kirana Tjandrakirana, Tjandrakirana Trimulyono, Guntur Trisanti, Novita Umah, Elviadian Nadzimatul Umrotun Faridah Uzma, Irakiya Ainun Wahyuni Puji Astuti Wahyuni, Luspita Wulida Mamluatul Faza Yuliani Yuliani Yuliani, Yuliani Zulfa Samawati