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All Journal Jurnal Sains Materi Indonesia BIOMA : Jurnal Biologi Makassar Kappa Journal
I Gusti Agung Ayu Ratnawati
Universitas Udayana
Agriculture, Biological Sciences & Forestry Astronomy Materials Science & Nanotechnology Physics Other

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Journal : Kappa Journal

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Analisis Pigmen Alami Daun Mangga (Mangifera Indicalinn) Sebagai Pewarna Batik Dengan UV-VIS Ni Komang Tribuana Cipta Putri; I Gst Agung Ayu Ratnawati; Wayan Gede Suharta
Kappa Journal Vol 3 No 2 (2019): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v3i2.1627

Abstract

The development of the batik industry has caused batik consumption to increase. Increased clothing and lifestyle needs trigger the need for practical (synthetic) dyes to have an impact on the waste produced. To reduce negative effects, the use of natural dyes needs to be increased. One of the plants that produce natural dyes is mango (Mangifera Indica Linn). Mango plants (Mangifera Indica Linn) including the family Anacardiaceae. The leaves contain a lot of chlorophyll which can produce color pigments for textiles. To find out the potential, an UV-VIS analysis was carried out, namely absorbance and calculation of the amount of chlorophyll contained in the leaves. The method used is the maceration process with technical ethanol solvents, with variations in concentration (70% and 96%) and variations in the immersion time (3 hours, 5 hours, 10 hours, 20 hours). From the results of UV-VIS spectrophotometry analysis showed the maximum absorption or absorbance at a concentration of 96% for 5 hours and the calculation of chlorophyll by the Lichtenthaler & Welburn (1983) method showed that the sweet arum manggu leaves used for research contained more chlorophyll b than chlorophyll a, gives a greenish-yellow pigment with wavelengths of 540 nm and 640 nm.
Analisis Diagnostic Reference Level (DRL) Pasien Pada Pemeriksaan Abdomen Kontras dan Nonkontras Dengan Pesawat CT Scan Di RSUD Bali Mandara Br Ginting, Venesia Sesilia; Sutapa, Gusti Ngurah; Ratnawati, I Gusti Agung Ayu; Widiana, I Komang
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.18985

Abstract

In this study, data were obtained from 35 patients aged 27-76 years. The current used varies from 46-185 mAs and a constant tube voltage of 130 kV, with different clinical symptoms. The patient's DRL value on contrast and non-contrast abdominal examination was determined by calculating the third quartile value. On non-contrast abdominal examination, the DRL CTDIvol value was 10.62 mGy and the DLP DRL was 607.76 mGy.cm and on the non-contrast abdominal examination, the DRL CTDIvol value was 32.73 mGy and the DRL DLP value was 1825.10 mGy.cm. These results indicate that the DRL CTDI vol and DRL DLP values on contrast abdominal examination at Bali Mandara Hospital were still below the actor's limits set by BAPETEN, while on abdominal examination the DRL CTDI vol and DRL DLP values exceeded the limits set by BAPETEN. This is caused by exposure which is done three times. Therefore, it is necessary to restore both the Patient Operational Standards (SOP) and the exposure factor on an abdominal contrast CT scan at Bali Mandara Hospital.
Co-Authors Br Ginting, Venesia Sesilia Gusti Ngurah Sutapa Hery Suyanto I Wayan Balik Sudarsana Ida Bagus Gede Darmayasa Made Sumadiyasa Ni Komang Tri Suandayani Ni Komang Tribuana Cipta Putri Ni Made Indah Suandewi Ni Nyoman Rupiasih Ni Nyoman, Ratini P. Suardana Retno Kawuri Risky Vidika Apriyanthi Suandayani, Ni Komang Tri Theresia Avila Mogi Wayan Gede Suharta Widiana, I Komang Yetti Herlina