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All Journal Klinikal Sains (Jurnal Analis Kesehatan) Indonesian Journal of Library and Information Science (IJLIS)
Lailatus Sa'diyah
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Health Professions Immunology & microbiology Library & Information Science Social Sciences Other

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PENGARUH SUHU TERHADAP KADAR VITAMIN C KOMBUCHA TEH HITAM, TEH HIJAU, DAN EARLGREY SELAMA MASA SIMPAN Vika Ayu Devianti; Lailatus Sa'diyah
Klinikal Sains : Jurnal Analis Kesehatan Vol 10 No 2 (2022): Desember
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/klinikal_sains.v10i2.2739

Abstract

Kombucha is a fermentation drink of tea and SCOBY. One of the nutritious content of kombucha tea is vitamin C. Vitamin C in kombucha is produced by breaking down glucose by Sacharomyces. The longer fermentation lasts, the more sugar used by Sacharomyces, and it causes the decreasing of vitamin C content. The aim of this study is to determine the optimum temperature in controlling vitamin C content during the storage period of post-fermentation kombucha tea (7 and 14 days) and to compare the most stable kombucha tea (black tea, green tea and earl gray tea) in producing vitamin C after heating treatment. Vitamin C in kombucha obtained by measuring it’s absorbance in UV-Vis spectrophotometer at 265nm wavelength. The absorbance value will be calculated as the percentage of vitamin C content. The percentage calculation done by calculating the linear regression equation. The results obtained indicates that the most optimum temperature for controlling vitamin C during the storage period is heating it in 65oC for 15 minutes. Vitamin C is best produced from kombucha which is derived from green tea, black tea and then earl gray tea (sequentially). It can be concluded that heating kombucha in 65oC and 70oC is able to control the vitamin C value in black, green, and earlgrey tea kombucha
PERILAKU KEBUTUHAN INFORMASI TERHADAP PERILAKU PENCARIAN INFORMASI PEMUSTAKA DI UPT PERPUSTAKAAN UNIVERSITAS BENGKULU Lailatus Sa'diyah; Dara Ocka Himalaya; Purwaka
Indonesian Journal of Library and Information Science Vol. 6 No. 1 (2025): Indonesian Journal of Library and Information Science
Publisher : Program Studi Ilmu Perpustakaan, Fakultas Adab dan Humaniora Universitas Islam Negeri Ar-Raniry Banda Aceh

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Abstract

This research discusses the influence of information needs on the information-seeking behavior of library users at the UPT Library of the University of Bengkulu. Information needs are crucial in the decision-making process, problem-solving, and knowledge development. The more actively individuals engage in information-seeking, the more significant their information needs become. This study aims to determine whether there is an influence of information needs on the information-seeking behavior of library users at the UPT Library of the University of Bengkulu. The research method used is quantitative, and the statistical analysis tool employed is SPSS 25.0. The population of this study consists of 41,944 individuals, with a sample size of 100 respondents determined using the Proportionate Stratified Random Sampling technique. Data were collected through questionnaires and documentation. The data were analyzed using the Pearson Product-Moment Correlation test. The results of the product-moment correlation test showed a value of 0.702 between the information needs variable and the information-seeking behavior of library users at the UPT Library of the University of Bengkulu, indicating a strong correlation. The results of the study show that there is a significant influence of information needs on the information-seeking behavior of library users, with a strong correlation (0.60-0.799). The data were also analyzed using the Coefficient of Determination (R²) test. Based on the coefficient of determination calculation, it was found that the influence of information needs is 49.1%, while the remaining 50.9% of the information-seeking behavior is influenced by other variables.
Co-Authors Dara Ocka Himalaya Purwaka Vika Ayu Devianti