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All Journal Biotika: Jurnal Ilmiah Biologi AL KAUNIYAH Pro-Life Padjadjaran Journal of Dentistry
Mohamad Nurzaman
Universitas Padjadjaran
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Dentistry Education Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Public Health

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ISOLASI PROTOPLAS TANAMAN KACANG HIJAU (Vigna radiata (L.) Wilczek) SECARA ENZIMATIK DENGAN KOMPOSISI ENZIM BERBEDA Mohamad Nurzaman; Tia Setiawati
BIOTIKA Jurnal Ilmiah Biologi Vol 1, No 1 (2002): Biotika Juni 2002
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/bjib.v1i1.149

Abstract

The effects of different enzyme compositions and age of explants on protoplasts isolation  of mungbean (Vigna radiata (L) Wilczek) had been carried out. Protoplasts were isolated from the first leaves of 5, 6, 7, and 8 days old of mungbean seedling, which were incubated in 5 types enzyme composition for 4 hours. The results showed that the yield of protoplasts more than 106 protoplas/g leaf for all combinations. The highest yield of  protoplasts (3,4 x 107 protoplasts/g leaf) were obtained from 7 days old seedling using a combination of 4% Meicelase P-1, 1% Macerozyme R-10 and 0.5 M mannitol. From these results, it can be concluded that the type of enzyme compositions and age of explants influent the yield of protoplasts isolation
Pemberian Asam Humat untuk Meningkatkan Pertumbuhan dan Kandungan Total Flavonoid Sawi Hijau (Brassica juncea L.) pada Perbedaan Kadar Salinitas Tia Setiawati; Tentani Buhti Amadea; Mohamad Nurzaman; Nining Ratningsih
Jurnal Pro-Life Vol. 8 No. 3 (2021): November
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/jpvol6Iss2pp102

Abstract

Salt affects plant growth due to increased soil osmotic pressure and plant nutrients disturbance. Most plants are susceptible to high salinity which can cause physiological and biochemical interference. This research was conducted to obtain a possible salinity level for mustard greens (Brassica juncea L.) to grow well and the best humic acid dosage to reduce salinity damages and to gain high total flavonoid content. This research used Randomized Block Design method with two factors and four replications. The factors are salinity levels (control, 50, 75, and 100 mM) and humic acid dosage (control, 2, 4, and 8 g/kg). In the parameters which had interactions between the two treatments, the highest results were obtained with a combination of 100 mM salinity and 12 g humic acid, such as plant height (33.35 cm), leaf area (379.66 cm2), fresh weight (22.41 g) and dry weight (1.54 g). The highest results on leaf number (8.5 leaves) and total flavonoid content (0.074 mgQE/g sample) were obtained with 100 mM salinity. Humic acid dose of 12 g gave the highest result on leaf number (8.69 leaves) and total flavonoid content (0.095 mgQE/g sample).
PENGARUH POLYETHYLENE GLYCOL (PEG) TERHADAP KADAR KUERSETIN KULTUR KALUS Chrysanthemum morifolium Ramat PADA KONDISI PENCAHAYAAN BERBEDA Tia Setiawati; Syifa Fauzia Zazuli; Annisa Annisa; Mohamad Nurzaman; Budi Irawan
Al-Kauniyah: Jurnal Biologi Vol 13, No 1 (2020): Al-Kauniyah Jurnal Biologi
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3713.676 KB) | DOI: 10.15408/kauniyah.v13i1.13688

Abstract

AbstrakKrisan (Chrysanthemum morifolium Ramat) mengandung senyawa kuersetin dengan efek farmakologi yang sangat luas. Penambahan polyethilene glycol (PEG) dapat dimanfaatkan untuk meningkatkan produksi metabolit sekunder secara in vitro. Penelitian ini bertujuan untuk mengetahui pengaruh PEG terhadap pertumbuhan kalus krisan dan kadar kuersetin 3-O-rhamnosida pada pencahayaan yang berbeda. Penelitian menggunakan Rancangan Acak Lengkap (RAL). Eksplan kalus berumur 45 hari setelah tanam (HST) disubkultur pada media MS + 4 ppm 2,4-D dengan penambahan PEG dalam lima taraf konsentrasi yaitu 0, 10, 20, 30, dan 40 ppm. Kultur diinkubasi pada kondisi gelap dan terang. Parameter yang diamati adalah warna, tekstur, ukuran, berat basah, dan berat kering kalus serta kadar kuersetin 3-O-rhamnosida. Data kuantitatif dianalisis menggunakan Analisis Varians dan Uji Jarak Berganda Duncan (α 5%), sedangkan data kualitatif dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa kalus pada kondisi terang berwarna cokelat dan cokelat kehijauan, sedangkan pada kondisi gelap berwarna putih kecokelatan. Perlakuan 10 ppm PEG menghasilkan berat basah dan berat kering kalus tertinggi baik pada kondisi terang maupun gelap berturut-turut 1,97 g dan 2,92 g; 0,94 g dan 1,09 g. Kadar kuersetin 3-O-rhamnosida tertinggi pada kondisi gelap dan terang terdapat pada perlakuan 10 ppm PEG berturut-turut  1,72 µg/g berat kering (BK) dan 2,59 µg/g BK.Abstract Chrysanthemum morifolium Ramat. contains quercetin with very broad pharmacological effects. The addition of PEG can be used to increase the production of secondary metabolites using in vitro method. This study aimed to determine the effect of PEG on the growth of Chrysanthemum callus and quercetin 3-O-rhamnoside content in different lighting conditions. The experimental design used was a Completely Randomized Design. After 45 days, callus were subcultured on MS medium + 4 ppm 2,4-D which PEG was added in five concentration levels (0, 10, 20, 30, and 40 ppm). Culture was incubated in dark and light conditions. Parameters observed were color, texture, size, wet weight and dry weight of callus, also quercetin 3-O-rhamnoside levels. Quantitative data was analyzed using Analysis of Variance and Duncan's Multiple Distance (α 5%). Qualitative data was analyzed descriptively. The results showed that in light condition, the callus has brown and greenish brown color, whereas in dark, it has brownish white color. The 10 ppm PEG treatment produced the highest fresh weight and dry weight in both light and dark conditions of 1.97 g and 2.92 g, 0.94 g and 1.09 g, respectively.The highest quercetin 3-O-rhamnoside content  in dark and light conditions were founded in 10 ppm PEG treatment of 1.72 µg/g dry weight (DW) and 2.59 µg/g DW.
The antibacterial effect of β-pinene derived from Citrus aurantifolia peel against oral Streptococcus mutans ATCC 25175 Euis Julaeha; Tati Herlina; Mohamad Nurzaman; Tri Mayanti; Dikdik Kurnia; Elizabeth Fitriana Sari
Padjadjaran Journal of Dentistry Vol 33, No 1 (2021): March 2021
Publisher : Faculty of Dentistry Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/pjd.vol33no1.29200

Abstract

Introduction: Streptococcus mutans has been known to play a major role in dental caries development. This tooth decay is the most common oral disease affecting people in the world. Hence, discovering the new herbal antibacterial agent seems to become more promising yet challenging. One of natural antibacterial source is the peel of Citrus aurantifolia, as it may contain antibacterial active compounds against pathogenic oral microbes. This study was aimed to isolate antibacterial compound from essential oil of Citrus aurantifolia and to analyse its antibacterial activity against oral Streptococcus mutans ATCC 25175. Methods: Type of research was laboratory experimental. The essential oil was isolated from peel of Citrus aurantifolia by hydro-distillation technique and further isolation of antibacterial compounds was conducted by combination column chromatography using organic solvent, and the structure was determined by UV-Vis, infrared (IR), 1D NMR of 1H-, 13C-NMR and DEPT 135° in CDCl3 spectrometers methods. The antibacterial activity was tested against Streptococcus mutans ATCC 25175 using the Kirby-Bauer method. Results: 0.75% yield was obtained from the essential oil of peel Citrus aurantifolia and after purification, an antibacterial compound was identified as β-pinene with the molecular formula C10H16. Furthermore, the β-pinene from peel of Citrus aurantifolia exerted inhibition growth against Streptococcus mutans at concentration of 2000, 1000, and 500 ppm by showing respectively, inhibition values of 13.0, 11.9, and 11.6 mm on paper disk. Conclusion: In the present study, the essential oil of Citrus aurantifolia peel is proven to contain prospective antibacterial compound (β-pinene) that potentially can be used as natural antibacterial alternative choice to manage oral disease associated with Streptococcus mutans infection.
Co-Authors Annisa Annisa Budi Irawan Dikdik Kurnia Elizabeth Fitriana Sari Euis Julaeha Nining Ratningsih Syifa Fauzia Zazuli Tati Herlina Tentani Buhti Amadea Tia Setiawati Tia Setiawati Tri Mayanti