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All Journal CHEESA: Chemical Engineering Research Articles Jurnal Paedagogy
Putri, Salsabila Ananda
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education Languange, Linguistic, Communication & Media Mathematics Other

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Extraction of Basil Leaves Essential Oil using Microwave Assisted Hydrodistillation Method: Physical Characterization and Antibacterial Activity Putri, Ditta Kharisma Yolanda; Putri, Salsabila Ananda; Nugraha, Briantara Agung; Fachri, Boy Arief; Palupi, Bekti
CHEESA: Chemical Engineering Research Articles Vol. 6 No. 1 (2023)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v6i1.14639.1-12

Abstract

Basil oil can be obtained from basil leaves by non-extraction methods, namely Microwave Assisted Hydrodistillation (MAHD). Therefore, this research aims to determine the yield percentage, essential oil composition by GC-MS, physical characteristics, and antibacterial activity of basil essential oil. The highest yield of 0.3076% was obtained at the optimum condition, which included a microwave power of 300 W, a mass-to-volume solvent ratio (F/S) of 0.75 g/mL, a raw material size of ± 1.75 cm, and an extraction time of 90 min. The results of the analysis of variance showed that all process parameters used had a significant effect on the yield obtained. Basil oil exhibited a larger inhibition zone against Escherichia coli bacteria (16.38 mm) which tended to be stronger than Staphylococcus aureus (5.95 mm) and was classified as moderate. The main components contained in the basil oil were E-Citral (46.79%) and Z-Citral (38.17%). The physical characteristic test showed that the basil oil was soluble in 96% ethanol after a ratio of 1:9, with 1 ml of basil oil compared to 9 ml of ethanol. The density of basil oil at 0.961 g/mL also complied with the standard value according to the Essential Oil Association (EOA) of Ocimum basilicum Essential Oil. These results showed revealed that the parameter analyzed using oil yields at operating conditions produced the most optimum yield value.
Influence of Social Support and Self-Compassion on Student Happiness in the Pandemic Period Putri, Salsabila Ananda; Adriani, Yufi
Jurnal Paedagogy Vol. 10 No. 4: Jurnal Paedagogy (October 2023)
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jp.v10i4.8464

Abstract

This study aimed to analyze the impact of social support and self-compassion on students' happiness during a pandemic. This study used a quantitative approach with multiple regression analysis. The sample was taken using the non-probability sampling method (purposive sampling), consisting of 213 students living in JABODETABEK. The scales used to measure the variables in this study are the Orientation to Happiness Scale, the Personal Support Evaluation List (ISEL), and the Indonesian version of the Self-Empathy Scale (SWD). Based on the results of this study, social support, and self-compassion influence happiness by 27.4%. In addition, based on the results of this study of seven variables, four significantly impact happiness, namely evaluation of support, concrete support, self-kindness, and common humanity. This research contributed to the Positive Psychology field and gave parents and teachers feedback on supporting student happiness.
Co-Authors Bekti Palupi Boy Arief Fachri Ditta Kharisma Yolanda Putri Nugraha, Briantara Agung Yufi Adriani