Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Jurnal Sains dan Teknologi Jurnal Kedokteran Hewan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Cut Nanda Defira, Cut Nanda
Unknown Affiliation
Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Education Engineering Immunology & microbiology Medicine & Pharmacology Veterinary

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Biomassa, Potensi Cadangan Karbon dan Serapan Karbon Pada Hutan Kota Irvianty; Siregar, Zuriana; Defira, Cut Nanda
JST (Jurnal Sains dan Teknologi) Vol. 12 No. 2 (2023): July
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jstundiksha.v12i2.52626

Abstract

Pemerintah berkomitmen untuk menurunkan emisi CO2 yang terus bertambah dalam kurun waktu 7 tahun terakhir. Keberadaan hutan kota tidak hanya berfungsi sebagai tempat rekreasi tetapi juga berperan penting dalam menyerap dan menyimpan karbon di dalam biomassa. Penelitian ini bertujuan untuk menganalisis  biomassa, potensi cadangan karbon dan serapan karbon pada hutan kota. Metode yang digunakan adalah metode non-destructive (tanpa pemanenan). Pengumpulan data pada  Hutan kota yang memiliki luas wilayah lebih dari 1 ha dilakukan dengan menggunakan metode plot yang diletakkan secara purposive. Luas petak yang digunakan 20mx20m. Penentuan jumlah petak dilakukan dengan mengambil 10% dari luasan kawasan masing-masing hutan kota. Pengumpulan data pada hutan kota yang memiliki luas wilayah kurang dari 1 ha dilakukan dengan sensus. Kriteria tegakan atau pohon yang didata adalah tegakan dengan DBH lebih dari sama dengan 10 cm. Data yang diambil meliputi diameter pohon, tinggi pohon dan jenis pohon. Hasil analisis biomassa pohon pada hutan kota adalah 110,79 ton/ha, dengan total cadangan karbon sebesar 55,40 ton/ha dan serapan CO2 203,36 ton/ha. Luas hutan kota yang dikaji secara keseluruhan adalah 8,71 ha sehingga diperoleh total biomassa di hutan kota adalah 964,98 ton, total cadangan karbon sebesar 482,53 ton, dan serapan CO2 sebesar 1771,27 ton.
ADDITION OF POTENTIAL PROBIOTIC BACTERIA TO INCREASE GROWTH PERFORMANCE AND FEED EFFICIENCY OF COMMON CARP (Cyprinus carpio) Yulvizar, Cut; Dewiyanti, Irma; Defira, Cut Nanda; Iqbalsyah, T.M.; Suhartono, Suhartono
Jurnal Kedokteran Hewan Vol 11, No 1 (2017): March
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21157/j.ked.hewan.v11i1.5458

Abstract

Three intestinal bacteria isolates (namely C1, C2, and C3) from common carp (Cyprinus carpio) were isolated and identified as new potential probiotics. This research aimed to study the effect of three isolates potential probiotics addition on growth performance, survival rate and feed efficiency of common carp. Completely randomized design was assigned to fourth diet treatments with five replicates. As a control, we used the feed without any supplemention of potential probiotic. The result showed that the addition of potential probiotic bacteria (C1, C2, and C3) gave significant effect on daily growth rate, survival rate and feed efficiency and could be used in aquaculture industry to reduce feeding cost.
Cellulase activity of bacteria isolated from water of mangrove ecosystem in Aceh Province Dewiyanti, Irma; Darmawi, Darmawi; Muchlisin, Zainal Abidin; Helmi, Teuku Zahrial; Arisa, Iko Imelda; Defira, Cut Nanda; Fitriyani, Fitriyani; Yura, Sawva
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.3.22964

Abstract

Cellulolytic bacteria that produce cellulase enzymes play an essential role in degrading cellulose in their habitat. The presence of cellulolytic bacteria strongly supports the fertility and productivity in mangrove waters. The objectives of the study are to analyze the activity of cellulase enzyme qualitatively through the cellulolytic index and quantitatively through the activity and specific activity of the cellulase enzyme from bacteria isolated from the water of mangrove ecosystems in Aceh Province. The qualitative experiment of enzyme activity was carried out at the Microbiology laboratory SKIPM Aceh, and a quantitative experiment of enzyme activity was conducted at the Microbiology Laboratory, Biology Department, IPB. Isolation of cellulolytic bacteria isolated from mangrove water usedCarboxy Methyl Cellulose(1% CMC) selective media and carried out by spread plate method. The ability of bacteria to produce cellulase was tested qualitatively using the spot technique, this test was carried out using 1% Congo Red. Furthermore, the quantitative testing of cellulase enzymes activity adopted the DNS spectrophotometric method. The specific activity of the cellulase enzyme can be determined by using the Lowry method. There were 21 isolates that had a clear zone and had the ability to produce cellulase enzymes from 49 isolates that were successfully purified. The highest cellulolytic index (CI) produced using BAM421 isolate with the value of 5.50 was included in the high category, followed by BAM326 and BAM132 isolates, with values of 1.55 and 1.05 were categorized into the medium category. The other isolates were in the low cellulolytic index category. The isolate with the highest CI value was further tested using the quantitative enzyme activity test. The highest cellulase enzyme activity of BAM421 occurred at 24hr (0.0029 U/ml). The highest specific cellulase activity of BAM421 was at 24hr with the value of 0.210 U/mg. The result concluded that the qualitative test showed CI values can be categorized into low, medium, and high. Moreover, the value of the quantitative assay described that the cellulase enzyme and the specific enzyme activities of the bacteria were low in the study area.Keywords:Cellulolytic indexQuantitative testMangrove watersCellulase enzymeMicroorganismTRANSLATE with x EnglishArabicHebrewPolishBulgarianHindiPortugueseCatalanHmong DawRomanianChinese SimplifiedHungarianRussianChinese TraditionalIndonesianSlovakCzechItalianSlovenianDanishJapaneseSpanishDutchKlingonSwedishEnglishKoreanThaiEstonianLatvianTurkishFinnishLithuanianUkrainianFrenchMalayUrduGermanMalteseVietnameseGreekNorwegianWelshHaitian CreolePersian// TRANSLATE with COPY THE URL BELOW Back EMBED THE SNIPPET BELOW IN YOUR SITE Enable collaborative features and customize widget: Bing Webmaster PortalBack//
Co-Authors Cut Yulvizar Darmawi . Fitriyani Fitriyani Iko imelda arisa, Iko imelda Iqbalsyah, T.M. Irma Dewiyanti Irvianty Siregar, Zuriana Suhartono Teuku Zahrial Helmi Yura, Sawva ZAINAL ABIDIN MUCHLISIN