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All Journal Saintia Biologi Chimica et Natura Acta Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Aceh International Journal of Science and Technology

Cut Fatimah Zuhra

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Author-ID : 428785

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences

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MODIFIKASI PATI SUKUN DENGAN METODE IKAT SILANG MENGGUNAKAN TRINATRIUM TRIMETAFOSFAT Zuhra, Cut Fatimah; Ginting, Mimping; Marpongahtun, Marpongahtun; Syufiatun, Ayu
Chimica et Natura Acta Vol 4, No 3 (2016)
Publisher : Departemen Kimia

Pati alami memiliki aplikasi terbatas karena tidak selalu memiliki sifat yang diinginkan untuk beberapa jenis pengolahan. Oleh karena itu diperlukan modifikasi untuk meningkatkan penggunaan dari pati tersebut, salah satunya dengan melakukan modifikasi pada struktur pati. Penelitian ini bertujuan untuk menghasilkan pati termodifikasi yaitu pati ikat silang fosfat. Pati ikat silang fosfat disintesisÂ denganÂ mereaksikan pati sukun dengan natrium trimetafosfatÂ dan dilakukan variasiÂ berat natrium trimetafosfat (1%, 2%, 3%) dan waktu reaksi (30, 60 dan 90 menit). Dari hasil uji yang dilakukan dengan menggunakan spektroskopi IR maka terbentuknya pati fosfat didukung dengan munculnya vibrasi P-O-C pada daerah bilangan gelombang 1050-995 cm-1 dan daerah 1643 cm-1. Pengaruh penambahan konsentrasi trinatrium trimetafosfat dapat meningkatkan nilai derajat substitusi dan menurunkan swelling power. Derajat subtitusi diperoleh berkisar antara 0,2343-0,3003, dimana derajat substitusi yang paling tinggi diperoleh pada penambahan berat natrium trimetafosfat 3% dan waktu reaksi 60 menit yaitu 0,3003.

The Implementation of Biofloc Systems in the Catfish Breeding Cooperated with Lele Tamora SME Zuhra, Cut Fatimah; Sovia, Sovia Lenny; Nunuk, Nunuk Priyani
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 4 No. 2 (2019): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

This community service aims to provide solutions for fisheries that experience water change problems caused by the lower availability of ground water. The small-medium enterprise (SME) Lele Tamora which is engaged in catfish breeding experiences this problem, such as turbid and bubbly water, which causes mass death of fish seedlings. Therefore, pond fish farming with a modern system integrated by a biofloc system that is supported by the use of microbubbles is introduced to the owner. The basic principle of this system is to utilize bacteria that can release substances that function as adhesives to form biofloc, such as microalgae aggregates, residual pellets, exoskeletons of dead organisms, bacteria, protists, protozoa and others substance with 0.1-2 mm diameter. All of these aggregates can be a source of poison in the pond system or as a competitor for fish to get oxygen. The biofloc system is projected to be able in reducing the toxic content in pond water which automatically reduces fish mortality, and this system can also convert organic waste in ponds into natural food as well as reducing commercial feed. For this purpose, a 1000 liter volume of bioreactor has been constructed to grow biofloc bacterial seeds, 20-liter-capacity of autoclaves to sterilize dissolved oxygen while helping to breed floc-forming aerobic bacteria. This system has been implemented at Lele Tamora SME, and the results showed the changing of water-pond colour from green to brown. Meanwhile, the netting ratio (selection of catfish based on the size of ready-to-sell) increased from 4000 to 8000 individuals.

Teacher Upgrading Skill in Preparing Materials and Examination Based on Images in Sibolga City Andriayani, Andriayani; Zuhra, Cut Fatimah; Maghfirah, Awan; Yanti, Maulida; Gea, Saharman; Pasaribu, Khatarina Meldawati; Piliang, Averrous Fazlurrahman
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

There are 61 primary/ibtidaiyah schools, 18 junior high schools, and 18 senior high schools in the city of Sibolga, which is located in Teluk Tapian Nauli, with a total number of teachers of about 2000. This is in line with the vision of Sibolga city (2016-2021) in order to create a stable, advanced, and successful Sibolga City by producing highly competitive quality human beings in order to create a harmonious, peaceful, secure and unified society. As mentioned above, one of its mission points is to prepare human resources (HR) that have integrity, reliable, competitive, expert in science and technology so that they able to compete in the global job market. As the education stakeholder, Sibolga Education and Culture Official has plan many outstanding work programs such as made a collaboration in partnership with the Universitas Sumatera Utara community service team. As a result, based on field observations and discussions, it was known that one of the obstacle that facing by the teachers in Sibolga is not being able to provide teaching materials and also picture-based examination questions as contained in the question grid. Currently, there are several technology-driven applications that can be used to make images or graphics creating process easier. Two of them are, GeoGebra Classic that used to create graphics and images in mathematics and Chemdraw that used to create structure images that related to chemistry. In addition word optimization training was also conducted to optimize teacher on preparing teaching materials with Ms. word.

Utilization Conventional Market Waste on Catfish Food Production Zuhra, Cut Fatimah; Lenny, Sovia; Zaidar, Emma; Taufik, Muhammad
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 2 (2020): ABDIMAS TALENTA : Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Tamora Catfish Company as a Micro, Small and Medium Enterprise (UMKM) which one of the Universitas Sumatera Utara community service partners, used a simple microbubble technology system to increase the dissolved oxygen content in pond water in order to anticipate of the large number of die fish because of the polluted pond water, which impacted in reducing the amount of oxygen. Biofloc application was observed decreasing the ammonia content and generating natural feed. This was analyze by the team that already implemented this simple technology in the first year observation which found its successfully reduce fish mortality and increase the number of catfish. However, the catfish food is expensive because it is depend on pellet feed, so the production process costs are very high. Via a multi-year system, community service team utilizes conventional market waste as a feed in order to replace the use of costly pellet feed. The solution was starting from processing conventional market waste such as vegetables waste. It was considered because it is cheap and it needs simple machine technology to produce the feed. The machine will construct by copper and mixer in order to produce feed that suitable for catfish food. Furthermore, it also impacted to make conventional market cleaner from waste since partners collect and process the waste directly.

PENGHAMBATAN PERTUMBUHAN Aspergillus flavus DAN Fusarium moniliforme OLEH EKSTRAK SALAM (Eugenia polyantha) DAN KUNYIT (Curcuma domestica) Ira Wulan Dani; Kiki Nurtjahja; Cut Fatimah Zuhra
Saintia Biologi Vol 1, No 1 (2012)
Publisher : Saintia Biologi

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Growth inhibition of Aspergillus flavus and Fusarium moniliforme by leaf extract of salam (Eugenia polyantha) and turmeric (Curcuma domestica) was studied. Kirby-Bauer disc diffusion method was used in this experiment. The plant extracts used were 0, 5, 10, 15, 30, 40, 50, 60 and 70% and dimethyl sulfoxide (DMSO) as a solvent. The result showed that the E. polyantha and C. domestica have a different activity in inhibiting the growth of A. flavus. The leaf extract of turmeric showed lower activity inhibiting A. flavus and F. moniliforme than that of E.polyantha. In 5% E. polyantha inhibits the growth both of the fungus. While C. domestica showed activity inhibiting A. flavus in 5 % and F. moniliforme in 40 %. Keywords: A. flavus, F. moniliforme, extract salam, turmeric

PENGHAMBATAN PERTUMBUHAN Aspergillus flavus DAN Fusarium moniliforme OLEH EKSTRAK SERUNI (Wedelia biflora) DAN KEMBANG BULAN (Tithonia diversifolia) Agnes Dame Sinta Uli; Kiki Nurtjahja; Cut Fatimah Zuhra
Saintia Biologi Vol 1, No 1 (2012)
Publisher : Saintia Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.214 KB)

The growth inhibition of Aspergillus flavus and Fusarium moniliforme by extract of seruni (Wedelia biflora) and Kembang bulan (Tithonia diversifolia) has studied. Kirby-Bauer disc diffusion were used in this experiment. The leaf methanolic extracts prepared were 0, 5, 10, 15, 30, 40, 50, 60 and 70% with dimethyl sulfoxide as the solvent. The results showed that extract of seruni and kembang bulan has a different activity in inhibiting the growth of both fungus. Seruni extract showed lower activity in inhibiting A. flavus and F. moniliforme than kembang bulan. In 40% seruni inhibits the growth both of the fungus. While kembang bulan showed activity in inhibiting A. flavus and F. moniliforme in 5%. Kata kunci: A. flavus, F. moniliforme, T. diversifolia and W. biflora exctract

Calcined Aceh Bovine Bone (Bos indicus) Intercalated Lithium as An Inorganic Base Catalyst for Transesterification of Castor Oil Muliadi Ramli; Saiful Saiful; Febriani Febriani; Amraini Amraini; Fathurrahmi Fathurrahmi; Shellatina Shellatina; Cut Fatimah Zuhra
Aceh International Journal of Science and Technology Vol 9, No 1 (2020): April 2020
Publisher : Graduate Program of Syiah Kuala University

Realizing abundant availability of local bovine bone wastes in Aceh Province, Indonesia, this study is subjected to take competitive advantages from the local bovine bone waste for preparing an inorganic catalyst preparation. In detail, calcined Aceh bovine bones were successfully intercalated lithium through an impregnation method resulting in the inorganic base catalyst, which showed promising activity in the transesterification of castor oil. Prior to the experiment, the Aceh bovine bone waste was calcined at 900 oC in the air atmosphere for 4 hours, led to forming crystalline phases of hydroxyapatite [Ca5(PO4)3(OH)] and calcium oxide [CaO]. Also, the chemical modification of calcined bovine bone with lithium precursor has enhanced the physicochemical properties of the inorganic base catalyst. Finally, the intercalated Aceh bovine bone has shown a feasible activity in transesterification of castor oil into biodiesel, which yielding methyl ricinoleate as the main product.

Co-Authors Agnes Dame Sinta Uli Amraini Amraini Andriayani - Fathurrahmi Fathurrahmi Febriani Febriani Febriani Febriani Ginting, Mimping Ira Wulan Dani KIKI NURTJAHJA Maghfirah, Awan Marpongahtun MUHAMMAD TAUFIK Muliadi Ramli Nunuk, Nunuk Priyani Pasaribu, Khatarina Meldawati Piliang, Averrous Fazlurrahman Saharman Gea Saiful Saiful Saiful Saiful Shellatina Shellatina Sovia Lenny Sovia, Sovia Lenny Syufiatun, Ayu Yanti, Maulida Zaidar, Emma

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