8 research outputs found
Solubility examination of palm kernel oil in supercritical CO2 and its correlation with solvent density based model
No full textApplication of supercritical carbon dioxide (SC-CO2) to vegetable oil extraction became an attractive technique due to its high solubility, short extraction time and simple purification. The method is considered as earth friendly technology due to the absence of chemical usage. Solubility of solute-SC-CO2 is an important data for application of the SC-CO2 extraction. In this work, the equilibrium solubility of the PKO in SC-CO2 has been examined using extraction curve analysis. The examinations were performed at temperature and pressure ranges of 323.15 K to 353.15 K and 20.7 to 34.5 MPa respectively. It was obtained that the experimental solubility were from 0.0160 to 0.0503 g oil/g CO2 depend on the extraction condition. The solubility experimental data was well correlated with a solvent density based model with absolute percent deviation of 0.96
PALM KERNEL OIL SOLUBITY EXAMINATION AND ITS MODELING IN EXTRACTION PROCESS USING SUPERCRITICAL CARBON DIOXIDE
No full textApplication of supercritical carbon dioxide (SC-CO2) to vegetable oil extraction became an attractive technique due to its high solubility, short extraction time and simple purification. The method is considered as earth friendly technology due to the absence of chemical usage. Solubility of solute-SC-CO2 is an important data for application of the SC-CO2 extraction. In this work, the equilibrium solubility of the palm kernel oil (PKO) in SC-CO2 has been examined using extraction curve analysis. The examinations were performed at temperature and pressure ranges of 323.15 K to 353.15 K and 20.7 to 34.5 MPa respectively. It was obtained that the experimental solubility were from 0.0160 to 0.0503 g oil/g CO2 depend on the extraction condition. The experimental solubility data was well correlated with a solvent density based model with absolute percent deviation of 0.96. PENENTUAN KELARUTAN MINYAK INTI KELAPA SAWIT DAN PEMODELAN EKSTRAKSI DENGAN KARBON DIOKSIDA SUPERKRITIK. Sehubungan dengan kelarutan yang tinggi, waktu ekstraksi yang pendek dan pemurnian hasil yang mudah, aplikasi karbon dioksida superkritis (SC-CO2) pada ekstraksi minyak nabati menjadi sebuah teknik ekstraksi yang menarik. Karena tanpa penggunaan bahan kimia, metode ekstraksi ini dianggap sebagai teknologi yang ramah lingkungan. Kelarutan zat terlarut pada SC-CO2 merupakan data yang penting dalam aplikasi SC-CO2 pada proses ekstraksi. Pada penelitian ini, kelarutan kesetimbangan dari minyak biji sawit (PKO) dalam SC-CO2 telah diuji dengan mengunakan analisa kurva proses ekstraksi. Pengujian kelarutan tersebut dilakukan pada rentang suhu 323,15 K sampai 353,15 K dan rentang tekanan 20,7 MPa sampai 34,5 MPa. Hasil analisa menunjukkan bahwa kelarutan kesetimbangan hasil percobaan PKO pada SC-CO2 adalah 0.0160 g minyak/g CO2 sampai 0,0503 g minyak/g CO2 tergantung pada kondisi ekstraksi. Data kelarutan kesetimbangan hasil percobaan telah dikorelasaikan dengan baik menggunakan sebuah model kelarutan yang didasarkan pada densiti pelarut. Pemodelan tersebut mempunyai persen deviasi mutlak 0,96. </p
Solubility examination of palm kernel oil in supercritical CO2 and its correlation with solvent density based model
No full textApplication of supercritical carbon dioxide (SC-CO2) to vegetable oil extraction became an attractive technique due to its high solubility, short extraction time and simple purification. The method is considered as earth friendly technology due to the absence of chemical usage. Solubility of solute-SC-CO2 is an important data for application of the SC-CO2 extraction. In this work, the equilibrium solubility of the PKO in SC-CO2 has been examined using extraction curve analysis. The examinations were performed at temperature and pressure ranges of 323.15 K to 353.15 K and 20.7 to 34.5 MPa respectively. It was obtained that the experimental solubility were from 0.0160 to 0.0503 g oil/g CO2 depend on the extraction condition. The solubility experimental data was well correlated with a solvent density based model with absolute percent deviation of 0.96
Hubungan Pengetahuan Dengan Kepatuhan Perawat Dalam Pelaksanaan Standar Prosedur Operasional (SPO) Pencegahan Risiko Jatuh Diruang Rawat Inap RSUD Ngimbang
No full textPatient safety is a top priority in healthcare services, and the prevention of fall risk is one of the key indicators in maintaining the quality of hospital care. At RSUD Ngimbang, the implementation of the Standard Operating Procedure (SOP) for fall risk prevention has not been optimal, which may increase the potential for patient fall incidents. One of the factors influencing nurses' compliance with the SOP is their level of knowledge. This study aims to determine the relationship between knowledge and nurse’ compliance with the implementation of the fall risk prevention SOP in the inpatient ward of RSUD Ngimbang.
This research used a cross-sectional design and involved 73 nurses selected through cluster random sampling. The research instrument was a questionnaire, and data were analyzed using Spearman’s rho test.
The results showed that the majority of nurses had good knowledge (59 nurses or 80.2%), and most were compliant in implementing the fall risk prevention SOP (56 nurses or 76.7%). Statistical analysis revealed a significance value of p = 0.000 (p < 0.05) and a correlation coefficient (r) = 0.451, indicating a significant relationship between knowledge and nurses' compliance with the SOP in the inpatient ward of RSUD Ngimbang.
In conclusion, there is a significant positive correlation between knowledge and nurses’ compliance in implementing the fall risk prevention SOP. Therefore, improving nurses’ knowledge should be a priority in efforts to enhance patient safety.Keselamatan pasien merupakan prioritas utama dalam pelayanan kesehatan, dan pencegahan risiko jatuh menjadi salah satu indikator penting dalam menjaga mutu layanan rumah sakit. Di RSUD Ngimbang, pelaksanaan SPO pencegahan risiko jatuh belum optimal, sehingga berpotensi meningkatkan insiden jatuh pada pasien. Salah satu faktor yang memengaruhi kepatuhan perawat terhadap SPO adalah pengetahuan. Penelitian ini bertujuan mengetahui hubungan antara pengetahuan dengan kepatuhan perawat dalam pelaksanaan SPO pencegahan risiko jatuh di ruang rawat inap RSUD Ngimbang.
Penelitian menggunakan metode cross-sectional dengan melibatkan 73 perawat yang dipilih melalui teknik cluster random sampling. Instrumen penelitian berupa kuesioner pengetahuan, kepatuhan, dan analisis data dilakukan menggunakan uji Spearman’s rho.
Hasil penelitian menunjukkan bahwa sebagian besar perawat memiliki pengetahuan baik sebanyak 59 (80,2%), dan sebagian besar perawat sudah patuh dalam pelaksanaan SPO pencegahan risiko jatuh sebanyak 56 (76,7%). Berdasarkan hasil data diatas didapatkan uji statistik dengan nilai signifikansi p = 0,000 (p<0,05) dengan nilai koefisien korelasi (r)= 0,451 artinya ada hubungan pengetahuan dengan kepatuhan perawat dalam pelaksanaan standart oprasional prosedur di ruang rawat inap RSUD Ngimbang.
Rumah sakit diharapkan rutin memberikan pelatihan dan supervisi tentang SPO pencegahan risiko jatuh serta meningkatkan pengawasan agar kepatuhan perawat tetap terjaga demi keselamatan pasien
Mapping Research of Color in Visual Communication Design During 2011-2021
No full textColor is one of the fundamental elements in visual communication design. Various research has been conducted about color related. Thus, this research was conducted to find research mapping related to color in visual communication design using bibliometric analysis methods. The data used in this study is the data contained in the Scopus database. Analysis is based on information available on the Scopus website that is collaborated with VOSViewer to visualize the results. The results of this study found that there were 377 documents related to color in visual communication design research. This amount is found after passing the screening process against the time, type of document, and subject area of research. The most type of publication document related to color in visual communication design is article document with 216 documents. The countries with the most document being in the United States with 94 documents. The affiliate with the dominating number of 6 documents is Politecnico di Milano. While research with the subject area of Computer Science has the largest percentage which is 150 documents. Mapping themes related to Color in Visual Communication Design there are four large groups which is colour, system, experiment, and participant. Mapping based on the author network there are 5 authors who network each other
Mapping Research of Color in Visual Communication Design During 2011-2021
No full textColor is one of the fundamental elements in visual communication design. Various research has been conducted about color related. Thus, this research was conducted to find research mapping related to color in visual communication design using bibliometric analysis methods. The data used in this study is the data contained in the Scopus database. Analysis is based on information available on the Scopus website that is collaborated with VOSViewer to visualize the results. The results of this study found that there were 377 documents related to color in visual communication design research. This amount is found after passing the screening process against the time, type of document, and subject area of research. The most type of publication document related to color in visual communication design is article document with 216 documents. The countries with the most document being in the United States with 94 documents. The affiliate with the dominating number of 6 documents is Politecnico di Milano. While research with the subject area of Computer Science has the largest percentage which is 150 documents. Mapping themes related to Color in Visual Communication Design there are four large groups which is colour, system, experiment, and participant. Mapping based on the author network there are 5 authors who network each other
Impact of Drying Methods on Bioactive Compounds and Antioxidant Properties of Kalanchoe ceratophylla
No full textKalanchoe species have been used as herbal medicines in traditional Asian medicine. One of the Kalanchoe species that has the potential as a medicinal plant and is still limited in its studies is Kalanchoe ceratophylla. This study investigated the effects of drying methods, namely, freeze drying (FD) and hot air drying (HAD), on bioactive compounds, phenolics, flavonoids, and antioxidants in Kalanchoe ceratophylla leaves and stems. The content of bioactive compounds in K. ceratophylla leaves and stems was identified with gas chromatography-mass spectrometry (GC-MS) analysis. In addition, the antioxidant activity of K. ceratophylla was also measured. The results of GC-MS on K. ceratophylla contain major bioactive compounds including gamma.-Sitosterol, Glutinol, Friedelan-3-one, Squalene, Ergost-5-en-3-ol, (3.β.)-, Erythritol, and Neophytadiene. The main component identified in the leaf and stem extracts of K. ceratophylla is gamma-sitosterol (± 15%), which shows anticancer and antidiabetic effects. The antioxidant activity in K. ceratophylla with the FD method was higher than that with the HAD method. This study suggests that FD was considered appropriate and should be used to maintain the content of important bioactive compounds and antioxidant activity in K. ceratophylla. These findings suggest that further research and development of bioactive compounds essential for their pharmacological properties in K. ceratophylla may be warranted, with the potential for developing new drugs
EFFECT OF GINGER OLEORESIN CONCENTRATION ON THE ENCAPSULATION PROCESS USING IONIC GELATION
No full textThe primary active components in ginger oleoresin are gingerol and shogaol, with gingerol exhibiting significant pharmacological activities such as anti-inflammatory, antioxidant, and analgesic effects. However, gingerol is heat-sensitive and degrades at elevated temperatures, limiting its functional efficacy when consumed. To overcome this limitation, encapsulation of ginger oleoresin was performed to enhance its physical and functional properties and improve its bioavailability. This study utilized the ionotropic gelation method to encapsulate ginger oleoresin, resulting in the formation of beads. Alginate was employed as the encapsulation matrix. The dried beads were characterized using FTIR, SEM, disintegration tests, and encapsulation efficiency was assessed via UV-Vis spectrophotometry. Results demonstrated that alginate beads containing ginger oleoresin could be successfully synthesized using the ionotropic gelation technique, with alginate as the polymer and CaCl2 as the cross-linking agent. Ginger oleoresin concentrations of 0.9%, 0.7%, 0.5%, and 0.3% were tested. The highest encapsulation efficiency, 72.48%, was obtained with a ginger oleoresin concentration of 0.7%. Surface morphology analysis revealed that the alginate beads exhibited a rough, porous texture with visible folds. Furthermore, the dry beads disintegrated within 30 minutes.
Keywords: alginate, beads, encapsulation, ginger oleoresin, ionic gelation metho
