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All Journal JURNAL PENDIDIKAN ROKANIA FARMASAINKES
Yuni Sartika
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Biochemistry, Genetics & Molecular Biology Chemistry Education Health Professions Immunology & microbiology Medicine & Pharmacology Public Health

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Hubungan Peran Orang Tua Dengan Motivasi Belajar Biologi Peserta Didik Kelas XI Di SMA Negeri 7 Padang Yuni Sartika; Ristiono Ristiono
JURNAL PENDIDIKAN ROKANIA Vol 7 No 3 (2022): Jurnal Pendidikan Rokania
Publisher : STKIP ROKANIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37728/jpr.v7i3.594

Abstract

This study aims to determine the relationship between the role of parents and the motivation to learn Biology of Class XI students at SMA Negeri 7 Padang, how much contribution is made and the results are significant or not. This research was conducted on June 20, 2022 – August 31, 2022 2022. The sample is 50 in one class. The sampling technique is proportional random sampling or a balanced sample. In this study, samples were taken with a total of 25% of the total population. The data in this study were analyzed using a simple Pearson Product Moment correlation formula, then a t-test was performed to determine whether or not the relationship was significant. The method used in this research is descriptive quantitative method. The data obtained were analyzed using techniques. The research instrument used was a questionnaire in the form of a table. This method was chosen because it is in accordance with the research objectives to be achieved. The results showed that there was a correlation between the role of parents and the motivation to learn. The results showed that the role of parents was 86.75% with very good criteria. Learning motivation is 88.29% with very good criteria. The value of r = 0.263 coefficient t_count is 2.465> 2.00, so it can be concluded that there is a significant and positive relationship between the role of parents and the motivation to learn Biology of Class XI students at SMA Negeri 7 Padang.
Penentuan SPF (Sunprotecting Factor) Ekstrak Etanol Buah Balakka (Phyllanthus Emblica L) Yuni Sartika; Rafita Yuniarti; Gabena Indrayani Dalimunthe; Minda sari lubis
FARMASAINKES: JURNAL FARMASI, SAINS, dan KESEHATAN Vol. 3 No. 2 (2024): FARMASAINKES: JURNAL FARMASI, SAINS dan KESEHATAN
Publisher : Fakultas Farmasi Universitas Muslim Nusantara Al Washliyah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32696/farmasainkes.v3i2.2817

Abstract

Buah balakka (Phyllanthus emblica L) adalah salah satu buah yang mengandung flavonoid dan vitamin C yang memiliki aktivitas antioksidan. Kemampuan ini dapat melindungi kulit dari paparan sinar matahari yang dapat merusak kulit. Penggunaan antioksidan pada kosmetik berperan sebagai tabir surya. Tabir surya merupakan sediaan yang dapat menyerap atau memantulkan sinar ultra violet. Tujuan penelitian ini untuk mengetahui golongan senyawa kimia metabolit sekunder yang terkandung dalam simplisia dan ekstrak etanol buah balakka, mengetahui nilai SPF ekstrak etanol buah balakka dan kemampuannya sebagai tabir surya. Metode yang digunakan buah balakka segar diuji makroskopik, simplisia buah balakka diuji karakteristik, uji skrining fitokimia pada simplisia dan ekstrak etanol buah balakka, penentuan nilai SPF mengunakan spektrofotometri UV-Vis. Hasil penelitian menunjukkan bahwa buah berbentuk bulat dan keras, bau khas, warna kuning kehijauan sampai kuning kecoklatan, karakteristik simplisia buah balakka mengandung kadar air 4%, kadar sari larut dalam air 21,5%, kadar sari larut dalam etanol 21,33%, kadar abu total 4,5% dan 0,88% kadar abu tidak larut dalam asam secara keseluruhan memenuhi standar MMI. Serbuk simplisia dan ekstrak etanol buah balakka mengandung senyawa kimia alkaloid, flavonoid, saponinn, tanin, dan steroid triterpenoid. Pengujian SPF pada konsentrasi 1%, 5%, 10%, 15% dan 20% diperoleh hasil secara berturut-turut sebesar 33.57; 37.15; 37.66; 38.09; dan 38.53. Secara keseluruhan nilai SPF yang diperoleh dikategorikan ultra. Dari hasil penelitian dapat disimpulkan bahwa ekstrak etanol buah balakka memiliki kemampuan sebagai tabir surya.
Co-Authors Gabena Indrayani Dalimunthe Lubis, Minda Sari Rafita Yuniarti Ristiono Ristiono