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Biosaintifika: Journal of Biology & Biology Education
Published by Universitas Negeri Semarang
ISSN : 2085191X     EISSN : 23387610     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Biosaintifika Journal of Biology & Biology Education, an electronic international journal, provides a forum for publishing the original research articles, review articles from contributors, and the novel technology news related to biological research and biological education.
Arjuna Subject : -
Articles 1,068 Documents
 99   100   101   102   103 
Production of α-Amylase Inhibitors of Aspergillus RD2 from Dewandaru (Eugenia uniflora L.) as Diabetes Drug
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 3 (2022): Desember 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i3.39334

Abstract

Diabetes mellitus is a metabolic disorder characterized by above normal blood glucose levels. A α-amylase inhibitors have inhibitory activity against α-amylase enzymes and cause decrease in glucose absorption. Dewandaru (E. uniflora L.) has the potential to produce compounds capable of controlling blood glucose levels. Aspergillus RD2 from twigs of the Dewandaru plant is expected to be able to produce antidiabetic compounds. This study aimed to determine the ability of the Aspergillus RD2 to produce α-amylase inhibitors by determining the production time, extracting α-amylase inhibitor compounds, testing the activity of the supernatant αα-amylase inhibitor and ethyl acetate extract with various concentrations of 2%, 4%, 6%, 8%, 10% and GC-MS analysis. The results showed the Aspergillus RD2 was able to produce αα-amylase inhibitors with an inhibitory activity of 59.71%. The incubation time of the Aspergillus RD2 in producing the highest α-amylase inhibitor was on the 7th day. The highest α-amylase inhibitor activity was at a concentration of 6% extract with an inhibition percentage of 82.79%. 9-Octadecenoic acid, 9-Octadecenal and n-Hexadecanoic acid were identified as having α-amylase inhibitor and antidiabetic activity. Aspergillus RD2 is able to produce α-amylase inhibitor compounds that have the potential to be used as antidiabetic drugs.
Analysis of the Bioactive Compounds N-Hexane Extract of Ramie Leaves and Flowers (Boehmeria nivea) and Antibacterial Test Against Escherichia coli and Klebsiella pneumoniae
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 3 (2022): Desember 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i3.38379

Abstract

Ramie (Boehmeria nivea) is one of the Urticaceae family plants with various potential for pharmacological development. In this study, we analyzed the bioactive content of the n-hexane extract of B. nivea leaves and flowers, and the crude extract was tested for antibacterial activity. The metabolites in the leaves and flowers of ramie were analyzed using a Gas Chromatography-Mass Spectrometer (GC-MS). Antibacterial potential analysis was carried out by disc diffusion method using n-hexane extract of ramie leaves and flowers at concentrations of 20%, 40%, 60%, 80%, and 100% in inhibiting Escherichia coli and Klebsiella pneumoniae. Antibacterial potential was observed based on the average result of three observations of the diameter of the clear zone to determine the effectiveness of the extract. The results showed that the metabolome data of the n-hexane extract of ramie leaves were obtained as many as 40 compounds. Meanwhile, ramie flower metabolome analysis obtained 47 compounds, but one compound has not been identified. The crude n-hexane extract of B. nivea flower gave antibacterial activity at 80% and 100% concentrations against E. coli with an average clear zone of 9.15 ± 0.31 mm and 10.29 ± 0.28 mm. In contrast, the n-hexane extract of B .nivea leaves did not show any antibacterial activity. The results of confirmation of the dominant compound by GC-MS showed that the n-hexane extract consisted of tetratetracontane, tetracontane, Stigmast-5-en-3-ol,(3.beta.,24S)-(CAS)Clionasterol, methyl commate D, and 2,6,10,14,18,22-Tetracosahexsaene,2,6,10,15,19,23-hexamethyl-, (all-E). The n-hexane extract of B. nivea is recommended for other potential biological activities, such as anti-inflammatory, antioxidant, and analgesic.
Effect of 6-Benzylaminopurine (BA) and Paclobutrazol (PBZ) with Light Intensity Variations for Cherry Tomatoes In vitro Flowering
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 3 (2022): Desember 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i3.39392

Abstract

Utilization of Solanum lycopersicum L. and its varieties contribute to plant biotechnology to study the effect of genes and flower transition events. This study aims to optimize media and light intensity for in vitro flowering of a cherry tomato variety. Induction of flowering was carried out using seven types of media combined with 3 light intensities, followed by feeding by adding liquid medium MS+PBZ 1 mg/L. A positive response is shown at the light intensity of 2,600 lux; there are 5 explants that have flower buds. The percentage of flower buds for each treatment combination was 50% from two replications. The first shoots occurred at 142 days after planting (DAP) on explants grown on media containing 0.5 mg/L BA, 0.75 mg/L PBZ, with feeding treatment. It can also be assumed that the emergence of flower buds occurred not because of the PGR induction treatment, but because at that time the explants had entered the generative phase, considering that the plantlets had been growing for a long time. Although the effects of BA and PBZ have not been confirmed, the use of 2,600 lux light appears to be the best condition for cherry tomato in vitro flowering induction.
Paclobutrazol Improves The Agronomic Performance and Micromorphological Profile of Five Local Black Rice ( Oryza sativa L.) Varieties in Central Java Indonesia
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 3 (2022): Desember 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i3.37380

Abstract

Local black rice (Oryza sativa L.) is one of the biodiversity of rice in Indonesia, which has tall stature and long cultivation period, easy to lodge, and requires more intensive care. Paclobutrazol (PBZ) is a plant growth inhibitor compound that could reduce plant height and accelerate plants entering the generative phase. This study aimed to determine the effects of PBZ concentration on the agronomic character and micromorphological profile of five local black rice varieties. This research was conducted experimentally using a completely randomized factorial design. The first factor was the local black rice variety (Brebes, Klaten, Magelang, Pati, and Pekalongan ), while the second was PBZ concentration (0, 100, 200, and 300 ppm) with three replications. PBZ spraying was conducted in the fourth week after planting. The data obtained were analyzed using ANOVA and HSD test (α=5%). The results showed that the concentrations of PBZ 300 ppm produced the heaviest 100 grains. The Klaten variety had wide abaxial stomata, the Magelang variety had high abaxial stomata density, while the Pati variety had long abaxial stomata and heaviest 100 grains. The interaction between Brebes variety and PBZ 0 ppm produced high adaxial stomatal density, Klaten variety, and PBZ 100 ppm have vast adaxial stomatal and high abaxial trichome density. Pati variety and PBZ 0 ppm had the most tillers, while Pati variety and PBZ 100 ppm had long adaxial stomata and the most grains per panicle. The study's critical findings are that PBZ gives different micromorphology improvements and increases agronomic performance in local black rice.
The Effect of Ciplukan (Physalis minima) Leaf Extract on Mesenchymal Stem Cell Proliferation and Population Doubling Time (PDT) In Vitro Irma Suryani; Kartini Eriani; Suhartono Suhartono
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 2 (2022): August 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i2.35722

Abstract

Physalis minimahas been used as herbal medicine because it is believed by the community to cure neurodegenerative and cardiovascular diseases. This study aims to determine the effectiveness of P.minima extract in increasing the proliferation of mesenchymal stem cells (MSC) from mouse (Musmusculus) bone marrow (BM). BM from the femur and tibia were isolated using a flushing method. BM-MSC primary culture was conducted in mesenPROÒ medium at 37ᵒC in a 5% CO2 incubator until it reached a 70% confluence.BM-MSCs were sub-cultured overnight in Dulbecco's Modified Eagle's Media (mDMEM). The mDMEM was replaced with a treatment medium on the second day of subculture. The treatment medium was changed every three days and evaluated under an inverted microscope by counting the number of cells at the beginning and the end of the incubation period. The proliferation rate is expressed as PDT, which was statistically analyzed using ANOVA at a significance level of 0.05% and followed-up with Duncan's test. Statistically, P. minima leaf extract could significantly reduce the PDT value. The optimum dose of P. minima leaf extract that can increase the proliferation of BM-MSC was 0.8 mg/ml. It is concluded that P. minima leaf extract was effective as an inducer of BM-MSC proliferation. The data obtained is the preliminary data on the use of P.minimaextracts in stem cell-based therapy. The results of this study provide important information in scientifically proving the potential of P. minima extract on stem cell proliferation.
The Effect Of Moringa Leaf Extract On Hyperglycemic Rat Liver Function Wulan Christijanti; Aditya Marianti; R. Susanti; Senda Kartika Rakainsa
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 2 (2022): August 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i2.35431

Abstract

One of the management of diabetics is to maintain stable glucose levels. Often diabetes treatment combines chemical drugs with medicinal plants. People have consumed a lot of Moringa leaves which are believed to be able to maintain body condition. One of the benefits of Moringa leaves with phytochemical components in it is as a hepatoprotector. The aim of this study was to analyze the role of Moringa leaf extract on liver function parameters of hyperglycemic rats. There were 4 groups, normal control (K0), hyperglycemic rats with induction of alloxan 125 mg/kg bw and divided into three groups treated with moringa leaf extract at a dose of 0 mg (K1), 200 mg (T1) and 400 mg/kg bw (T2 ) for 21 days. The variables measured were aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels, total cholesterol. Data were analyzed with Anova P0.05 and Least Significance Different (LSD) follow-up test. The results showed that the levels of AST and ALT were highest in the K1 group which then decreased significantly in the group that received Moringa extract (T1 and T2). Statistically there was a significant difference (p0.05) between the control and treatment groups. Cholesterol levels in the control group were significantly lower than the diabetes and treatment groups, but there was no significant difference between the treatment groups. The conclusion is that Moringa leaf extract has an effect on reducing liver enzyme levels and cholesterol in hyperglycemic rats. This research adds to the study of the hepatoprotective potential of Moringa leaf extract in hyperglycemic rats.
Callus Development from Potato (Solanum tuberosum) Stem at Various Concentrations of Benzylaminopurine Megananda Aprilia; Nintya Setiari; Yulita Nurchayati
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 2 (2022): August 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i2.35703

Abstract

Potato has the potential for food diversification.The propagation method in a short period is needed. One of the methods used is plant tissue culture. Benzyl Amino Purine (BAP), determine the success of propagation by tissue culture method. This research aimed to study the use of different BAP concentrations for callus development from stem explants. The explants put on culture medium added by 0, 1, 2, 3 ppm BAP. The development of the stem explant observed every week for a month. The results showed that callus formed in all media. Without BAP treatment, callus were formed after 2 weeks and got browning, then stopped growing. Callus grew and showed differentiation by application of all the BAP concentration. Callus greowth was optimally at 2 ppm BAP treatment. The callus from 1 ppm BAP produced the most number of roots, shoots and leaves than another concentration.  This experiment showed that different BAP concentrations affected callus development of S. tuberosum from stem explant. The conclusion was callus growth has obtained by the treatment of 2 ppm BAP, while the development of callus has obtained on addition of 1 ppm BAP. The novelty of this research is the callus induction method from potato sprout stems grown from potato seeds with plant growth regulators Benzyl Amino Purine. Callus induction method from potato sprout stems grown from potato seeds can be a guide for embryogenic callus induction.
Microbiological and Biochemical Tests on Tempe Production Using Tempe Mold Innovation Siti Harnina Bintari; Dhimas Fajar Eka Purnama; Danang Dwi Saputro; Sunyoto Sunyoto; Pramesti Dewi; Ibnul Mubarok
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 2 (2022): August 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i2.37700

Abstract

Tempe is a popular fermented food in Indonesia, one of the important things in the process of making tempeh is the tempe incubation container. The purpose of this study was to prove the quality of tempe products made using the tempe mold innovation suitable for production, to analyze the comparison between the quality of tempe products made using a tempe incubation tool and without using the tool. Experimental research with Completely Randomized Design (CRD), applying a tempe incubator and without using a tool as a control. Test methods used include testing water content, hygiene, number of mold colonies and protein content. Based on the results of the study, tempe products made using a tempe printer contain a moisture content of 51.4 - 56.2%, protein content 17.92 - 18.58%, the number of mold colonies 3.65 x 105 untill 4.08 x 105 cell/gr and negative Escherichia coli. Based on the results of the study, it was concluded that the tempe products made using the tempe mold innovation tool had met the biological and chemical quality standards based on SNI 3144:2015 and had an overall quality test result that was superior to the control.
Carbon Stocks in the Conservation Area of PT. Pertamina (Persero) Fuel Terminal Boyolali Sunarno Sunarno; Rully Rahadian; Sri Widodo Agung Suedy; Bayu Pradika; Bima Adistya
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 2 (2022): August 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i2.35074

Abstract

Flora biodiversity has been known to have a vital function in reducing carbon emissions in the air and contributing oxygen in significant levels to the environment. PT. Pertamina (Persero) Fuel Terminal Boyolali (FTB) has an important role in the conservation programs, protection of flora biodiversity, and environmental management. This study aims to analyze carbon stocks found in trees, plants cover soil, litter, necromas, and carbon in the soil and evaluate conservation of flora. This study uses a purposive random sampling method of carbon sources followed by the determination of carbon stocks in three conservation areas managed by PT. FTB, namely in the Wonopotro Forest, in the Pepe River watershed, and Pertamina's operational area. The samples from carbon sources include trees, litter, ground cover plants, necromas, and soil. The trees and necromas carbon sources sampling at each location was carried out at 2 stations with a size of 10 x 50 m2. Meanwhile, the sampling of litter, ground cover plants, and soil was carried out at 2 stations, each consisting of 3 plots. The results showed that the total carbon stock in the conservation areas was 1,688,0791 tons. The Pepe River watershed has the highest total carbon stock, which was 1,466,0928 tons/ha. The FTB and Wonopotro Forest, respectively, have about 180.7569 and 41.2294 tons/ha. The novelty of this research is the method of calculating carbon stocks in a conservation area that can be used as a database for assessing environmental management performance to the preservation of biological resources.
Mechanical Scarification Influence on Gleditsia assamica Bor Water Uptake and Germination Farid Kuswantoro; Arrohmatus Syafaqoh Li’aini
Biosaintifika: Journal of Biology & Biology Education Vol 14, No 2 (2022): August 2022
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v14i2.36348

Abstract

Physical dormancy is a typical kind of dormancy in Fabaceae species, including Gleditsia assamica. Physical dormancy is caused by the impermeability of the seed coat and can be alleviated, among others, by mechanical scarification. Previous studies on mechanical scarification effect on G. assamica seed focus only on its germination parameter without regard to its effect on seed water upatke. As germination is initiated with water uptake, current study aims to understand the treatment effect on both of seed water uptake and germination parameters. Tetrazolium dyeing and seed weight measurement trials were conducted to study the seed water uptake. Meanwhile, a germination test is conducted to investigate the treatment's influence on the seed germination parameters. This study shows that mechanical scarification can enhance G. assamica seed water uptake. The treatment was also significantly improve final germination percentage and germination speed index. This study result gives us a clearer understanding of the effect of mechanical scarification to alleviate G. assamica dormancy and germination, which will be advantageous to the species conservation and domestication efforts.

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