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DEGRADATION CAPABILITY AND PRODUCTION OF BIOSURFACTANTOF CRUIDE OIL-DEGRADING BACTERIA FROM SEDIMENTSELAT BARU Wassyukur, Miptahul Huda; Nursyirwani, Nursyirwani; Yoswati, Dessy
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

                                          ABSTRACT   Petroleum pollution can originiate from oil spills during drilling, production, refining and transportation activities. One of the hardly to decomposed petroleum contaminants is hydrocarbons, once thehydrocarbons enter the marine environment, the chemical componend can be reduced by biological processes (bioremediation) using bacteria. The purpose of this study was to examine the ability of bacterial isolates from Selat Baru coastal sediments to degrade crude oil and produce biosurfactants. This research was conducted in August to October 2018. The ability of bacterial isolates to degrade oil and biosurfactant production was carried out in the Marine Microbiology Laboratory and Marine Chemistry Laboratory, Department of Marine Sciences, Faculty of Fisheries and Marine, University of Riau. Experimental method was used in this research.. Nine isolates of crude oil degrading bacteria were provided from previous researchers, namely isolates 11p31 (1A), 33p31 (3A), 22p41 (10A), 22p42 (4B), 33p31 (5B), 12p32 (9B), 22p31 (1C), 11p41 (9C), 31p41 (12C). Each isolate was examined the ability to degrade crude oil at  concentration of 1% (0.5 ml), 2% (1 ml) and 3% (1.5 ml). The highest crude oil degradation ability was at 1% concentration by isolates 22p41 (10A) and 11p41 (9C), and for 2% concentrations by isolates 33p31 (5B) and 3% concentrations by bacterial isolates 33p31 (3A). All bacterial isolates were found to produce biosurfactan through the Oil Speading Assay. Emulsifikation test using kerosene indicated kerosene. where the highest emulsification in test 1 is isolate 33p31 (3A). Then in test 2 the highest emulsification value was shown by isolate 33p31 (3A). In Test 3 the highest emulsification value was isolate 11p41 (9C).  Key words:(1)Oil pollution,(2)Degrading,(3)Cruide oil,(4)Biosurfactan,(5)Emulsification  
Kandungan Logam Cr, Cu, dan Zn pada Daging Siput Sedut (Cerithidea montagnei) dengan Ukuran Berbeda di Perairan Pulau Kundur Kabupaten Karimun Provinsi Kepulauan Riau Surya, Mujibur Rahman; Amin, Bintal; Yoswati, Dessy
Jurnal Perikanan dan Kelautan Vol 23, No 2 (2018)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.23.2.16-22

Abstract

This research was conducted in October 2017 by taking samples from Tanjung Berlian and Gading Sari coastal waters of Kundur Island, Karimun Regency, Kepulauan Riau Province. This study aims to analyze the heavy metal content of Cu, Cr and Zn on C. Montagnei, to analyze the relationship of heavy metal content with snail size, to evaluate the level of pollution status of Kundur Island waters and to estimate the safety level of snail consumption by human. The metal content on the small size of the snail is larger than the larger size. The average content of Cu in Station 1 was found in small size (1.3877 μg/g), medium size (1,0783 μg/g) and large size (1.6100 μg/g), whilst in Station 2 was found as follow: large size with an average of 1.4417 μg/g. Cr content in Station 1 for small size (5.0383 μg/g), medium size (1.4850 μg/g) and large size (3.0950 μg/g). Snail in Station 2 was only found at Station 2 (1.9517 μg/g). Zn content in small size of snail was in Station 1 (117,4500 μg/g), medium size (122,5200 μg/g) and large size (115,9200 μg/g). Meanwhile, Zn content in snail at Station 2 was 104.7283 μg/g in large size.
Pelatihan budidaya ikan lele pada kolam terpal dengan sistem akuaponik di Desa Harapan, Kecamatan Sungai Apit, Kabupaten Siak, Provinsi Riau Mulyadi, Mulyadi; Pamukas, Niken Ayu; Adelina, Adelina; Lukistyowati, Iesje; Yoswati, Dessy
Unri Conference Series: Community Engagement Vol 1 (2019): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.1.347-354

Abstract

Most of the Kampung Harapan residents are farmers, namely farming corn, sweet potatoes, chilli, fruit, vegetables (such as spinach and kale) and fish farming. This village is prospective to be used as rearing sites for aquaponic systems. Aquaponic cultivation technology can be developed in limited area and water, and it also can increase business efficiency through the utilization of nutrients from the uneaten fish meal and the metabolism wastes of fish for vegetables, so it could be able to produce fish and vegetables optimally on narrow land and limited water sources, including in urban areas. Through the fish rearing with aquaponic systems, fish farmers will get two advantages in one production stage. This activity was carried out through discussion and practice, which the activity took place in the village office and in the home yard of the fish farmer group in Harapan Village. Extension activities involve fish farmers, plantation farmers and several students. The results of the activities showed that skills and knowledge of fish farmers increase regarding aquaponics fish farming and making pellets mix with gingger. Plastic fish ponds as a pilot project produce high yields of catfish and leafy vegetables, so it can be an alternative income for fish farmers.
Inhibition of Xylocarpus granatum Extracts against the Growth of Pathogenic Bacteria (Pseudomonas aeruginosa, Escherichia coli and Vibrio alginolyticus) Gabariel, Elkana; Yoswati, Dessy; Nursyirwani, Nursyirwani
Jurnal Perikanan dan Kelautan Vol 24, No 2 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.24.2.114-118

Abstract

The research was conducted from October until Desember 2018 at the Laboratories of Marine Chemistry and Marine Microbiology, University of Riau and Integrated Chemical Laboratory, University of Muhammadiyah, Riau. The Purpose of this research was to determine the inhibition of Xylocarpus granatum extracts on the growth of pathogenic bacteria (P. aeruginosa, E. coli and V. alginolyticus). Samples used for were leaves, fruits, and rods extract of X. granatum  andthe extacts was preferred different at concentrations 100%, 50%, 25% and 12,5%. The result showed that  the highest concentration at 100 %, rod was the best extracts to against the growth of pathogenic bacteria and the antimicrobial compound could inhibit thr growth of pathogenic bacteria (P. aeruginosa, E. coli and V. alginolyticus) with intermediate ability with clear zone diameter between 0,3 – 10 m
SENSITIVITY TEST OF VIBRIO sp BACTERIA ISOLATED FROM DUMAI SEA WATERS TO ANTIBIOTICS (CIPROFLOXACIN, ERYTROMYCIN AND STREPTOMYCIN) Fitri, Febi Anisa; Feliatra, Feliatra; Yoswati, Dessy
Asian Journal of Aquatic Sciences Vol 3 No 2 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.3.2.189-192

Abstract

The research was conducted from Feb until April 2019. The purpose of this study was to examine the resistance of Vibrio sp bacteria toward antibiotics (ciprofloxacin, streptomycin and erythromycin) isolated from Dumai sea waters. The spread of Vibrio sp bacteria has been found in sea waters, Vibrio sp bacteria have been found on the surface of faecal contaminated water and the existence of the population is related to organic waste disposal. Antibiotic susceptibility test was performed using Kirby-Bauer method. Resistance test showed that isolated V2, V9, V11, V13, V19, V23, V24 dan V28 were resistant to antibiotic ciprofloxacin, streptomycin and erythromycin with inhibitory zones ranging from 7,1 to 31,7 mm. . Isolated V2 and V9 are resistant to erythromycin, isolated V11, V13, V19, V23 and V28 are resistant to streptomycin and isolated V24 is resistant to ciprofloxacin.
Peningkatan Pendapatan Nelayan melalui Diversifikasi Produk Berbahan Baku Udang Rebon Di Desa Sialang Pasung Kabupaten Kepulauan Meranti Nursyirwani, Nursyirwani; Effendi, Irwan; Yoswati, Dessy; Suparmi, Suparmi; Aryani, Netti; Effendi, Arman
Journal of Rural and Urban Community Empowerment Vol. 1 No. 1 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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Abstract

Udang rebon (Acetes sp.) is one of marine fishery products that in certain seasons the production is quite abundant in Desa Sialang Pasung Kecamatan Ransang Barat of Kepulauan Meranti District.An effort to increase the price and to optimize the use of udang rebon is through product diversification such as bakso (meat ball) and nugget.The objective of this community service activity was to increase knowledge and skill of local community and fishermen in Desa Sialang Pasung in the use udang rebon as raw materials in the production of bakso and nugget. Participants of the activity were local fishermen and wives and other house wives. This activity was performed in three steps: (1) preparation, (2) lectureanddiscussion and (3) demonstration practical in preparing meat ball and nugget by using udang rebon as raw material.Participants were very active during the lecturing and practical work, both from their responds and discussion. The community service activity was very valuable, particularly in order to increase local people income and in consumption of fishery products. Hopefully, this activity can motivate other local community and other community in other villages surrounding.