ISRAWATI HARAHAP
Department of Biology, Faculty of Mathematics and Natural Sciences, Kampus Dramaga, Institut Pertanian Bogor, Bogor 16680. Indonesia

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UJI AKTIVITAS ANTIBAKTERI DARI ISOLAT CENDAWAN ENDOFIT ASAL TUMBUHAN SENDUDUK (Melastoma malabathricum L.) TERHADAP Escherichia coli DAN Staphylococcus aureus Harahap, Israwati; Rahmi, Vivin Paddillah; Herlina, Nofripa
Sistem Informasi Vol 8 No 2 (2018): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

Endophytic fungi is a symbiotic microorganism which live inside plant tissues and not harm to their host. Several genera from endophytic fungi known to produce secondary metabolite compounds like antibiotics, anticancer, antifungal, antiviral and antimalarial. This study aimed to investigate antibacterial activity of endophytic fungi from senduduk (Melastoma malabathricum L.) against Escherichia coli and Staphylococcus aureus. Based on the test result, 11 isolates endophytic fungi from senduduk were known to have antibacterial activities. Isolate code 23 have ability to inhibit the growth of E.coli with diameters zone of inhibition is 22 mm and eight isolate endophytic fungi have ability to inhibit the growth of S.aureus (showed by inhibition zone).
ISOLASI Escherichia coli PADA DAGING SAPI SEGAR YANG DIPEROLEH DARI BEBERAPA PASAR TRADISIONAL DI PEKANBARU Elsie, -; Harahap, Israwati
Sistem Informasi Vol 7 No 01 (2016): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

Escherichia coli is a bacteria that inhabitant in the cattle or human intestine. Raw beef sold in the traditional markets is easily to contaminated by E. coli. It’s because the markets is one of the vulnerable and the risk is high enough against contamination. The goal of this research is to detect E. coli contamination in the fresh raw beef at several markets in Pekanbaru. This research used 100 gr fresh raw beef purchased from the six traditional markets in Pekanbaru. The study begins with a Most probable Number (MPN) test, than isolation and identification of the media ECB and L-EMB, initially with IMViC test (Indol, Methyl Red, Voges Praskauer and Citrate). Results of MPN test showed that all raw beef were contaminated E.coli with MPN varying value.
ISOLASI CENDAWAN ENDOFIT DARI AKAR WANGI (Vetiveria zizanioides L.) DAN POTENSINYA SEBAGAI ANTIMIKROBA Harahap, Israwati; Elsie, -
Sistem Informasi Vol 8 No 01 (2017): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

Endophytic fungi are microorganisms living in healthy tissue of their host plants without causing disease. Endophytic fungi live in every plant, including Vetiveria zizanioides L. medicinal plant intracellulary and/or intercellulary. This plant was screened pharmacologically for antibacterial, antifungal, anticataleptic, analgesic and anti-inflammatory, rheumatism, anti oxidant and anti arthritic activity. This research aimed to isolation endophytic fungi from V. zizanioides L. and to screening their antimicrobial potency against microflora Escherichia coli, Staphylococcus aureus, and Candida albicans. Endophytic fungi isolation from V. zizanioides L. was done by surface sterilization method. A total of 33 isolates were recovered from 88 leaves and 88 root segments. Based on antimicrobial activitytest, most of the fungal extracts showed in vitro inhibition of microbes growth.
ISOLASI DAN SELEKSI CENDAWAN ENDOFIT DARI TANAMAN BETADIN (Jatropha multifida L.) DAN POTENSINYA SEBAGAI ANTIMIKROBA Elsie, -; Nurjanah, Indri; Harahap, Israwati
Sistem Informasi Vol 7 No 02 (2017): Jurnal Photon
Publisher : Fakultas MIPA dan Kesehatan Universitas Muhammadiyah Riau

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Abstract

This research aimed to isolate and select endophytic fungi that potentially as antimicrobial from betadin plants (Jatropha multifida L.). Isolation of endophytic fungi was carried out using surface sterilization and selection of endophytic fungi using well diffusion method. A total of 13 isolates of endophytic fungi were obtained from J. multifida L. From a total of 13 isolates, 11 isolates were able to inhibit the growth of Candida albicans, 11 isolate was able to inhibit the growth of Staphylococcus aureus and 10 isolates were able to inhibit the growth of Escherichia coli.
Pemeriksaan Golongan Darah bagi Guru Biologi SMAN dalam Rangka Peningkatan Kualitas Guru harahap, Israwati; Gesriantuti, Novia; Herlina, Nofripa; Elsie, Elsie; Badrun, Yeeri
Jurnal SOLMA Vol 7 No 2 (2018)
Publisher : Uhamka Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29405/solma.v7i2.1176

Abstract

Kegiatan Pengabdian kepada Masyarakat yang telah dilakukan ini bermula dari adanya keinginan untuk memberikan keterampilan yang dapat meningkatkan kompetensi guru-guru biologi. Hasil wawancara tim pelaksana pengabdian kepada Masyarakat Biologi UMRI dengan guru biologi SMAN 14 Pekanbaru, menunjukkan bahwa guru-guru Biologi SMAN 14 Pekanbaru memiliki keterbatasan ilmu dalam materi golongan darah dan tidak memiliki keterampilan dalam melakukan pemeriksaan golongan darah. Untuk itu, dengan adanya pelatihan pemeriksaan golongan darah ini, guru-guru biologi SMAN 14 Pekanbaru dapat memberikan pelajaran tentang materi golongan darah serta praktik pemeriksaan golongan darah kepada siswa. Kegiatan pelatihan ini dilaksanakan pada tanggal 1 Februari 2018. Pada saat praktik pemeriksaan golongan darah, guru-guru biologi sangat antusias mengikuti pelatihan dan mereka berharap adanya pelatihan lain yang dapat meningkatkan kompetensi para guru.