Fenny Agustina
Department Of Biology Education, Faculty Of Teacher And Training Education, Universitas Riau Kepulauan

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STUDI KANDUNGAN KROMIUM (Cr) PADA PERAKARAN TANAMAN BAKAU (Rhizophora stylosa) DI PERAIRAN SEKITAR TEMPAT PEMBUANGAN AKHIR (TPA) TELAGA PUNGGUR - BATAM Nurima Fauziah; Fenny Agustina; Notowinarto Notowinarto
SIMBIOSA Vol 4, No 1 (2015): JURNAL SIMBIOSA
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/sim-bio.v4i1.540

Abstract

Penelitian ini bertujuan untuk mengidentifikasi akumulasi kandungan logam Chromium  (Cr) di perakaran tanaman bakau Rhizophora stylosa yang tumbuh di sekitar perairan TPA Telaga Punggur dan Teluk Lengung Batam. Pengambilan sampel akar tanaman mulai dilakukan Februari – Mei 2013. diambil dari 4 (empat) titik plot untuk setiap pengamatan stasion. Hasil analisis laboratorium dari nilai akumulasi logam Chromium yang diperoleh bervariasi untuk setiap plot di stasiun pengamatan. Di stasiun TPA Telaga Punggur, petak 1 (946,95 mg / kg), petak 2 (22,99 mg / kg), petak 3 (32,67 mg / kg), dan plot 4 (23,37 mg / kg) . Sementara di Stasiun Teluk Lengung, petak 1 (87,52 mg / kg), petak 2 (27,19 mg / kg), petak 3 (28,43 mg / kg), dan plot 4 (22,85 mg / kg). Analisis uji menggunakan Mann-Whitney  menunjukkan bahwa P value (0,8852) α (0,05) atau dengan uji rerata yakni 0,06 mg/kg menunjukkan bahwa tidak ada perbedaan akumulasi kandungan Chromium pada lokasi yang dekat outlet TPA Telaga Punggur dengan tanaman bakau yang berada di Teluk Lengung.
RESPON SISWA TERHADAP LEMBAR KERJA PESERTA DIDIK (LKPD) MATERI BIOTEKNOLOGI PRODUK FERMENTASI LOKAL DI SMA NEGERI Nurhaty Purnama Sari; Fenny Agustina; Riska Henilian Saputri
Bio-Lectura : Jurnal Pendidikan Biologi Vol. 10 No. 1 (2023)
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/bl.v10i1.13618

Abstract

This study aims to determine students' responses to local fermented biotechnology Worksheets. This research was a type of qualitative descriptive research. Data collection used a questionnaire with Likert scale. Data trials were carried out with 2 scales, they are small scale of 8 respondents and large scale of 28 respondents. Based on the assessment of the results of the questionnaire that given to small-scale respondents, reached 89% in the very good category, while the large-scale respondents amounted to 87.81% in the very good category.
Potensi Antibakteria Tanaman Bidara Laut (Ximenia americana) Terhadap Bakteri Vibrio alginolyticus dan V. parahaemolyticus Ramses Ramses; Fenny Agustina; R. Pramuanggit Panggih Nugroho
BIOEDUSCIENCE Vol 5 No 1 (2021): BIOEDUSCIENCE
Publisher : Universitas Muhammadiyah Prof. Dr. Hamka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/j.bes/515091

Abstract

Background: Vibriosis is currently still a major problem in marine aquaculture and is highly dependent on availability of antibacterial agents in its handling. Investigation of antibacterial potential of the coastal plants of Bidara Laut (Ximenia americana) has been carried out. Methods: Parts of the X. americana plant taken are Old Fruit, Young Fruit, Old Leaf, and Young Leaf. A total of ± 200 grams of each part of X. americana plant was taken to be extracted using maceration method. The antibacterial activity test was performed using the Kirby-Bauer disc diffusion method on Muller Hinton Agar (MHA) media. Observations were made in time units, namely every 6 hours of incubation for 24 hours. Results: The tested extract of plant parts of X. americana showed an inhibition zone against the growth of V. alginolyticus and V. parahaemolyticus bacteria in each replication in all-time units of observation. Of the four types of extracts tested, old leaves showed strong category resistance to V. alginolyticus with the highest clear zone diameter of 16 mm (average 14.67 mm) at 6 hours incubation. Young leaves gave the highest of 18 mm (average 16.33 mm) against V. parahaemolyticus at 6 hours incubation. Conclusions: X. americana plants have potential for antibacterial against Vibriosis disease in aquaculture. The ability of power to be seen tended to decrease for all tests until the end of observation, but until the end of observation, the ability of extract inhibition of all parts of the plant was still in the moderate to strong category.
Potensi Antibakteria Tanaman Bidara Laut (Ximenia americana) Terhadap Bakteri Vibrio alginolyticus dan V. parahaemolyticus Ramses Ramses; Fenny Agustina; R. Pramuanggit Panggih Nugroho
BIOEDUSCIENCE Vol 5 No 1 (2021): BIOEDUSCIENCE
Publisher : Universitas Muhammadiyah Prof. Dr. Hamka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/j.bes/515091

Abstract

Background: Vibriosis is currently still a major problem in marine aquaculture and is highly dependent on availability of antibacterial agents in its handling. Investigation of antibacterial potential of the coastal plants of Bidara Laut (Ximenia americana) has been carried out. Methods: Parts of the X. americana plant taken are Old Fruit, Young Fruit, Old Leaf, and Young Leaf. A total of ± 200 grams of each part of X. americana plant was taken to be extracted using maceration method. The antibacterial activity test was performed using the Kirby-Bauer disc diffusion method on Muller Hinton Agar (MHA) media. Observations were made in time units, namely every 6 hours of incubation for 24 hours. Results: The tested extract of plant parts of X. americana showed an inhibition zone against the growth of V. alginolyticus and V. parahaemolyticus bacteria in each replication in all-time units of observation. Of the four types of extracts tested, old leaves showed strong category resistance to V. alginolyticus with the highest clear zone diameter of 16 mm (average 14.67 mm) at 6 hours incubation. Young leaves gave the highest of 18 mm (average 16.33 mm) against V. parahaemolyticus at 6 hours incubation. Conclusions: X. americana plants have potential for antibacterial against Vibriosis disease in aquaculture. The ability of power to be seen tended to decrease for all tests until the end of observation, but until the end of observation, the ability of extract inhibition of all parts of the plant was still in the moderate to strong category.