bluuebunny/crossref_metadata_2025_split huggingface dataset:
Antidiabetic Potency of Jeruju (Acanthus ilicifolius L.) Ethanol Extract and Taurine on Histopathological Response of Mice Kidney (Mus musculus L.) Induced by Alloxan
Authors: Widiastuti E L , Ardiansyah B K , Nurcahyani N , Silvinia A 
Published: January 2021

Abstract
Diabetes arises due to interference with the work of the pancreas in secreting the hormone insulin. The disease can cause a decrease in body immunity and complications of various vital organs such as the kidneys. Jeruju (Acanthus ilicifolius L.) leaf and taurine is reported to have antioxidant activity that is potential as antidiabetic agents. The purpose of this study was to determine the effect of jeruju and taurine on blood glucose levels and the ability to regenerate kidney organs damaged by alloxan induction. This study used a Completely Randomized Design with 5 treatment groups and 5 replications each. K1 group as a negative control (no treatment given), K2 group as a positive control (only induced by alloxan), group P1 induced alloxan and given 100% ethanol extract of jeruju leaf 22.4 mg/bw/day, group P2 induced alloxan and given alloxan 50% ethanol extract of jeruju leaf dose 22.4 mg/bw/day, group P3 was induced by alloxan and given a taurine dose of 15.6 mg/bw/day for 14 days. Data were analyzed by ANOVA followed by LSD at 5% of significant level. The results showed that the administration of jeruju extract and taurine affected the bodyweight of mice, and was significantly able to reduce blood glucose levels by 69.39% (P1), 67.06% (P2), 73.77% (P3), able to repair kidney damage after alloxan induction.
Effect of Duwet fruit (Syzgium cumini) extract on MDA level and Caspase 3 expression in Rat (Rattus sp) Testes exposed to cigarette smoke
Authors: Sukmaningsih A A S A , Suarni R , Wiratmini I , Setyawati I , Sudatri Ni Wayan , Pangestiningsih T W 
Published: January 2021

Abstract
This research evaluates the MDA levels, number and apoptosis of spermatogenic cells in Rat provided with duwet fruit extract and exposed to cigarette smoke towards. The study involved 4 experimental animal groups and 6 replications, where K0 was the negative control group, K1 was exposed the cigarette smoke, K2 was given orally duwet fruit, and K3 was given orally duwet fruit after being exposed to cigarette smoke. Therefore, data obtained were analyzed using One way Anova test. The results showed significantly lower number of spermatocytes and MDA levels in the testes in all groups compared to K1 at p <0.05. Spermatogenic cell apoptosis occurred in all groups, and there was also a high tendency for reduction in K2 compared to K1, although not significant at p > 0.05. In addition, apoptosis was expressed by Caspase 3 in the testes. The highest MDA levels found in K1. This phenomenon was assumed to have resulted in lower numbers of spermatocytes. These decreased number of spermatocytes were related with the decline in number of spermatogenic cells prone to apoptosis. In conclusion, duwet fruit had the ability to reduce free radicals with the tendency to inhibit spermatogenesis. This case features an increase in spermatocytes and a potential decline in the incidence of spermatogenic cell apoptosis.
Bacterial support as a biostimulant agent (BPNIII, Azzofor) for marginal soil fertility and stimulating seedlings growth in nursery
Authors: Widawati S , Suliasih  
Published: January 2021

Abstract
A nursery is the first preparation step for the reclamation of marginal land, supported by fertile, strong, and adaptable seedling to the environment. Therefore, the role of bacteria as a bio stimulating agent is needed to stimulate the growth of seedling during nursery and to enable their subsequent adaptation to the environment. The purpose of this study is to determine the effectiveness and survival rate of bacteria as a growing medium in marginal soil fertilization as well as the accelerated effect of the vegetative growth of seedling during the nursery. This research used the Completely Randomized Design with 3 treatments and 10 replications. The two biostimulant agents used were BPN III (Burkholderia Metallica, B.anthina, Rhizobium radiobacter, Azotobacter sp., Azospirillum sp.) and AZZOFOR (Enterobacter sp., Lysinibacillus xylanilyticus, Achrimobacter ruhlandii, Enterobacter hormaechei, Comamonas testosterone, Enterobacter cancerogeneus, Pseudomonas mosselii, Leclercia adecarboxylata, Citrobacter youngae, Enterobacter hormaechei, Chyuseobaterium indologenes, Achrimobacter xylosoxidans, and Citrobacter farmer), mixed with BPN III and AZZOFOR. The results showed that the biostimulant agents and rhizobacteria (BPN III + AZZOFOR) were suitable and effective in supporting the fertility of the marginal soil with bacterial population 107 CFU gram soil−1. Furthermore, all bacteria stimulated the vegetative growth of seedling, such as plant height, number of leaves, and branch, monthly during the nursery.
Antioxidant and Antimicrobial Activity of Endophytyc Fungi Isolated from Syzygium aqueum Leaves
Authors: Habisukan U H , Elfita  , Widjajanti H , Setiawan A , Kurniawati A R 
Published: January 2021

Abstract

Syzygium aqueum is a widely used medicinal plant species with ethnomedicinal values. Despite the plant, the endophytes are recognized as a rich source of secondary metabolites with potentially useful pharmacological properties. This study was aimed to identify the endophytic fungi from S.aqueum leaves and discover their antioxidant and antimicrobial activity. The ethyl acetate extracts of the isolated endophytic fungi were investigated for their antioxidant and antimicrobial activity using 1,1diphenyl-2-picryl hydrazyl (DPPH) method and paper disc diffusion assay, respectively. The antimicrobial activity was evaluated against three pathogen bacteria : Staphylococcus aureus, Salmonella thypi, and Escherichia coli, and one yeast: Candida albicans. Three endophytic fungi were obtained from S. aqueum leaves. Based on morphological characteristics, those fungi identified as Cochliobolus sp (D22), Penicillium sp. (D32), and Fusarium sp. (D41). Penicillium sp. (code D32) showed significant antioxidant potential activity as an also significant antimicrobial activity with IC50 59,16% and highest zone inhibition against E. coli 13.38 ± 0.25 mm. It is worth considering a further investigation of their bioactive secondary metabolites and isolates the bioactive compound for the antioxidant and antimicrobial agents.
Analysis of Total Carbohydrate and Chlorophyll Content of The Orchid Plantlet [Phalaenopsis amabilis (L.) Bl.] Resistant Fusarium Wilt Disease
Authors: Nurcahyani E , Sholekhah  , Sumardi  , Qudus H I 
Published: January 2021

Abstract
The moon orchid [Phalaenopsis amabilis (L.) Bl.] is a popular orchid in the community, native orchid from Indonesia, and included in the list of endangered species. The pathogenic fungus that often attacks orchid leaves is Fusarium oxysporum, which causes fusarium wilt. Control of diseases that do not cause negative impacts can be done using superior cultivars resistant to F. oxysporum infection, through in vitro selection in the medium with the addition of fusaric acid. Fusaric acid is a metabolite produced by several fungal species of the genus fusarium and at non-toxic concentrations it helps to induce phytoalexin synthesis, increase chlorophyll and carbohydrate content when pathogen infasion. The purpose of this study was to find out the total chlorophyll content, chlorophyll a, chlorophyll b, and total dissolved carbohydrate content. This study used a Completely Randomized Design (CRD) with one factor, namely the concentration of fusaric acid divided into 5 levels, namely 0 ppm, 10 ppm, 20 ppm, 30 ppm, and 40 ppm with 5 replications each. The results showed an increase in the total chlorophyll content, chlorophyll a, chlorophyll b, and total dissolved carbohydrate content.
The effect of fermentation on acidity, caffeine and taste cascara robusta coffee
Authors: Komaria N , Suratno  , Sudarti  , Dafik  
Published: January 2021

Abstract
Robusta coffee is in demand by the global market because of its distinctive aroma. Along with the high demand, robusta coffee waste known as cascara needs processing. Cascara which has a unique taste needs innovation to improve its quality. One of the efforts made is by varying the fermentation process. The purpose of this study is to examine the effect of the fermentation process on pH, caffeine and flavor in cascara robusta coffee. This type of research is experimental. The results showed that the fermentation process had an effect on pH, caffeine and flavor values. The non-fermented cascara has the lowest pH average value of 4.22, the natural fermented cascara has a pH value of 4.58, while the fermented cascara wrapped in banana leaves has a pH value of 5.24. Calculation of caffeine content in non-fermented cascara, natural fermented cascara and fermented cascara wrapped in banana leaves were 1.22%, 1.17%, and 1.14%, respectively. The taste test results of the non-fermented cascara, natural fermented cascara and cascara wrapped in banana leaves were different for each treatment.
Influence of Dy-doping in Nd2Fe14B on its structural and magnetic properties
Authors: Sukmara S , Manaf A , Adib W A 
Published: January 2021

Abstract
Study about Influence of Dy-doping in Nd2Fe14B on its structural and magnetic properties have been performed. The combination of Nd2-xDyxFe14B with x= 0.00, 0.33, 0.67, and 1.00 were using the conventional method of arc melting. The result of ingot then milled and compacted to produce a permanent magnet sample. The results of phase analysis with XRD show that the sample contained 3 phases, namely Nd2Fe14B, Fe, and Nd with dominant phase above 50% is Nd2Fe14B. Magnetic properties was measured using permeagraph and produce saturation magnetization of 0.6, 0.56, 0.42, and 0.4, remanent of 0.15, 0.19, 0.26, and 0.25, and coersivitas field of 0.35, 0.39, 3.0, and 1.29 kOe for composition of 0, 0.33, 0.67, and 1, respectively. The remanent magnetization ratio toward saturation of Br/Bs of this increase significantly from 0.34 to 0.62 for the composition x= 0.67, and has the highest energy product of 0.195 MGOe. To determine the effect of Dy substitution towards micro structure was observed with an optical microscope. It was concluded that the effect of Dy substitution towards optimum magnetic behavior was found in the composition x= 0.67.
Impact of Mn4+ ion substitution on La0.4Sr0.6Fe1-xMnxO3 perovskite conductivity (x = 0.2, 0.4 and 0.6) as a solid fuel cell cathode
Authors: Gunanto Y E , Izaak M P , Sitompul H , Adi W A 
Published: January 2021

Abstract
The samples La0.4Sr0.6Fe1-xMnxO3 (x = 0.2, 0.4, and 0.6) as solid fuel cell cathodes have been successfully synthesized and characterized. Samples were made using the solid-state reaction method with the wet milling technique. X-ray diffraction is used to see the phases formed. Surface morphology in the form of particle shape and size is characterized using scanning electron microscopy, while electronic conductivity at room temperature is measured by measuring its resistivity. Sample x = 0.4 has a single phase, while two other samples, x = 0.2 and 0.6 are still detected secondary phase. Surface morphology has a heterogeneous grain shape with a size between 63-250 nm. The best electronic conductivity at room temperature is obtained at a composition of x = 0.4 of 3.39 x 10-3 S.cm-1 so that it can be used as a candidate material for a solid fuel cell cathode.
Measurement of Physical Parameters of Water Quality in Real-Time Based on Arduino
Authors: Junaidi  , Putra T M , Surtono A , Puazi G A , Suciyati S W , Firdaus I , Rumiyanti L 
Published: January 2021

Abstract
In this study, a physical parameter measurement system has been implemented for real-time monitoring of Arduino-based water quality for catfish farming applications. This system aims to detect physical parameters of water quality such as pH and water temperature using the Analog pH Meter and DS18B20 sensors. Data were collected by inserting the two sensor probes into the catfish pond water medium. The results showed that the system can detect parameters, display and store sampling data on the Visual Studio 2013 interface application in real-time. The sensors in this system are able to detect pH and water temperature with an average accuracy rate of 90.94% and 99.71%.
Sintering temperature effect on optical properties of zinc oxide thin film on glass substrate prepared by sol-gel spin coating method
Authors: Rumiyanti L , Aryanto D , Garcia S , Syafriadi  , Firdaus I 
Published: January 2021

Abstract
Research on the optical properties of the ZnO thin film with the use of sol-gel method and spin coating method using 0.5 M concentrate solution of (Zn(CH3COO)2·2H2O) and 30 mL isopropyl alcohol as a solvent has been carried out. The production process of ZnO solution and the fabrication of the thin film with the optical properties test of the thin film are included in the scope of this research. UV-Vis Spectroscopy is used to obtain the transmittance and absorbance values on each wavelength and the band gap energy value using the Tauc Plot method. The transmittance value obtained is directly proportional with the temperature. The absorbance value obtained is inversely proportional with the temperature due to higher temperature causes the reaction rate to become faster and in turn causes the absorbance value to become lower. The band gap energy value obtained is on the range of 3.23 eV – 3.27 eV and it fit with the literature.
Structure analysis of electromagnetic waves absorbing material a lanthanum manganite system of (La0.8Ba0.2)(Mn(1-x)/2ZnxFe(1-x)/2)O3
Authors: Rumiyanti L , Wandira I , Adi W A , Junaidi  , Sembiring S 
Published: January 2021

Abstract
Solid compound of lanthanum manganite system of (La0.8Ba0.2)(Mn(1-x)/2ZnxFe(1-x)/2)O3 has been synthesized via conventional solid state reaction route using lanthanum oxide (La2O3), barium carbonate (BaCO3), zinc oxide (ZnO), ferric oxide (Fe2O3) and manganese carbonate (MnCO3) powders as it raw materials. High energy ball milling was used to mix the material for 5 hours. It is then sintered at 1000°C for 5 hours. X-ray powder diffraction method (XRD) and scanning electron microscopy (SEM) was used to analyze the change of structure of the solid compound. The refinement pattern result of the XRD shown that a single phase was occurred in the form of (La0.8Ba0.2)(Mn0.4Zn0.2Fe0.4)O3. It has trigonal lattice crystal structure of (r-3c) point group with lattice parameter of a = b = 5.515 Å and c = 13.551 Å, α = β = 90° and γ = 120°, a volume unit cell of V = 356.904 Å3 and a density of ρ = 6.745 g.cm−3. The SEM result shown that the surface morphology of (La0.8Ba0.2)(Mn0.4Zn0.2Fe0.4)O3 has a homogeneous sphere structure. The XRD and SEM structure analysis result of the lanthanum manganite system of (La0.8Ba0.2)(Mn0.4Zn0.2Fe0.4)O3 shown that the compound is feasible for further studied.
Rietveld analysis of geopolymer prepared from amorphous rice husk silica with different thermal treatment
Authors: Riyanto A , Sembiring S , Husain S , Karimah R S , Firdaus I 
Published: January 2021

Abstract
The work aims to study the temperature effect on the geopolymer’s crystal structure prepared from amorphous silica rice husk. The samples were prepared via the sol-gel method and then subjected to thermal at a temperature of 250-650 °C. EDS identified the element and compound composition on the surface of the sample. The crystal structure of samples identified by Rietveld refinement of XRD. The sample was dominated by the gibbsite phase at relatively low temperatures (250 °C). The boehmite phase dominates at a temperature of 350-450 °C. The amorphous structure of the geopolymer was formed at a temperature of 550-650 °C. The geopolymer mainly formed from the reaction of boehmite and silica. This study shows a significant effect of temperature on the formation of the geopolymer structure.
Effect of calcination temperature on silica-asphalt composite properties using amorphous rice husk silica
Authors: Sembiring S. , Riyanto A. , Firdaus I. , Junaidi  , Situmeang R. 
Published: January 2021

AbstractThis study aims to investigate the effect of thermal treatment on the phase formation and physical characteristics of silica asphalt composite prepared from rice husk silica and asphalt powders. The mass ratio of asphalt to silica is 1:2, and subjected to calcining temperatures of 200-450 °C. Development of structures was characterized using X-ray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). Further evaluation was made by comparing the characteristics of the silica-asphalt composite include the density, porosity, and compressive strength. The XRD study revealed that the major phases were carbon and silica amorphous, The XRD study revealed that the major phases were silica and carbon amorphous, which were associated with are Si-OH, Si-O-Si and C-H functional groups according to FTIR analysis. In addition, an increased calcination temperatures was followed by an increase in the density and compressive strength. Based on these characteristics, the samples are considered for the roof material, suggesting their potential use in substitute lightweight steel roof devices.
Deep learning for detection cassava leaf disease
Authors: Ayu H R , Surtono A , Apriyanto D K 
Published: January 2021

Abstract
In this research, an intelligent system for detecting cassava leaf disease has been developed by utilizing the MobileNetV2 deep learning model and displaying it using a python graphical user interface (GUI). There are five disease classes used in this study, namely Cassava Bacterial Blight (CBB), Cassava Brown Steak Disease (CBSD), Cassava Green Mite (CGM), and Cassava Mosaic Disease (CMD) and Healthy. The results showed that the overall accuracy of the test data obtained was 65,6%. The GUI application program was made to be operated efficiently for beginners and can be used by cassava farmers in the field.
One hadron exchange non-relativistic model for K+p potential
Authors: Glenno  , Fachruddin I , Salam A 
Published: January 2021

Abstract
K+p potential is modeled as one hadron exchange. The hadrons being exchanged include scalar meson (σ), vector mesons ( ω, p ), hyperons (Λ, Σ), and their resonances (Λ*(1600), Σ*(1385)). This interaction model is derived for non-relativistic calculations and for that purpose the potential model is formulated within Blankenbecler-Sugar reduction. The values of the potential parameters are fixed by fitting to experimental data of K+p spin-averaged differential cross section for kaon laboratory energies from 88.13 MeV to 380.58 MeV. Scattering calculations are performed by using a 3D technique without partial wave expansion.
Simple analytical method based on UV-visible spectroscopy coupled with SIMCA method for authentication of Lampung robusta coffee with geographic indications (GIs)
Authors: Yulia M , Suhandy D 
Published: January 2021

Abstract
Lampung Robusta coffee got a geographic indication (GIs) protection from Indonesian government since 2014 with certificate number of ID G 000 000 026. This GIs coffee come from three different geographic origins in Lampung province: Lampung Barat, Tanggamus and Way Kanan. In this research, we evaluate the possible application of simple analytical method based on UV-visible spectroscopy coupled with SIMCA (soft independent modelling of class analogy) for authentication of Lampung Robusta coffee with GIs. Two types of Lampung Robusta coffee were used: GIs coffee from Lampung Barat and non-GIs coffee from Pesawaran. Each type consists of 50 samples of ground roasted coffee with 1 gram weight. The all samples were extracted using a hot distilled water and 3 mL aqueous samples were pipetted into 10 mm quartz cuvette. UV-visible spectral data were recorded in the range of 190-1100 nm. The chemometrics (PCA and SIMCA) was performed using selected preprocessed spectral data in the range of 240-430 nm. The PCA result showed that GIs coffee and non-GIs coffee can be well separated. The SIMCA classification was accepted with 100% of correct classification.
Microcapsule from PCL/PEG as Controlled Nifedipine Drug Delivery Carrier
Authors: Rahma W A , Budianto E 
Published: January 2021

Abstract
Problems related to controlled drug release are important to immediately find a solution because of the dangers of drug side effects if consumed repeatedly every day. The drug used is Nifedipine which is a hydrophobic drug. This research used a synthetic combination of poly(caprolactone) and poly(ethylene glycol) with surfactants in the form of tween 80 and span 80 while the method used was microencapsulation. Microencapsulation is a process in which active substances are coated by extremely small capsules. Once the drug was in the intestine, it was released in a controlled manner so as to minimize side effects and maximize drug release. The results showed that the composition of the best poly(caprolactone) (PCL): (PEG) poly(ethylene glycol) combination was 80:20 with a molecular weight of PEG 400 g/mol. The result of the encapsulation efficiency percentage obtained 97.84% ± 0.01 and the result of dissolution test was 44.77%.
Transesterification of coconut oil (Cocos nucifera L.) into biodiesel using zeolite-A catalyst based on rice husk silica and aluminum foil
Authors: Herliana  , Ilim  , Simanjuntak W , Pandiangan K D 
Published: January 2021

AbstractIn this research, zeolite-A was synthesized by hydrothermal method using silica of rice husk and aluminum foil as raw materials. For zeolite preparation, a particular amount of silica was dissolved in NaOH solution which is then aged with variation time of 24-96 hours, the mixed solution was then added with aluminum foil and again aged for 24 hours, the crystallization process was carried out in an oven of 100 °C 96 hours. The resulting zeolite was then calcined at 550 °C for 6 hours. The zeolite characterization by XRD showed that zeolite-A had been formed and had characteristics following the zeolite-A standard from IZA. The resulting zeolite-A has good crystallinity as indicated by the sharp peaks on the resulting diffractogram. The zeolite-A catalytic test on transesterification of coconut oil showed high catalyst performance, characterized by the conversion of fatty acids in coconut oil to methyl esters with 100% conversion percent. The formation of the methyl ester was proven based on the results of the analysis with FTIR and GCMS which showed the characteristics of methyl ester at wavenumbers 1744 cm−1(C═O), 2922 cm−1(C─H), 1170 cm−1(C─O), with the highest percentage in the form of methyl laurate at 31.80%.