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All Journal Exhibition and Seminar on Science and Creative Technology – Al Azhar Proceeding Jurnal Sinergi Manajemen
Saffana, Nadhira
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Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Industrial & Manufacturing Engineering

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Investigating the Impact of Nitrogen Addition in Growing Media using Liquid Organic Fertilizer on Pigment and Protein Content of Spirulina sp. Saffana, Nadhira; Wijihastuti, Risa Swandari; Noriko, Nita
EXSACT-A Vol 1, No 1 (2023)
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/exc.v1i1.2348

Abstract

Spirulina sp. is a highly promising microalgae with substantial protein and pigment content, holds great economic potential across various industries. However, the cultivation of Spirulina sp. often faces the challenge of high production costs, particularly in media formulation. To address this issue, the development of more affordable alternative media formulations is crucial. One potential approach involves utilizing a combination of liquid organic fertilizer derived from Canna indica waste and urea for cultivation. This study aims to determine the optimal ratio of the fertilizers mixture that influences protein and pigment synthesis. The study design employed a completely randomized design with seven treatment groups along with the control. The result shows that the treatment 2A (20 mL/L organic fertilizer; 125 ppm urea) demonstrated the highest dry biomass weight. Treatment 2C (22 mL/L organic fertilizer; 150 ppm urea) exhibited the best specific growth rate and carotenoid production, with the carotenoid production significantly differing from the control. Treatment 1A (20 mL/L organic fertilizer; 100 ppm urea) yielded the highest levels of chlorophyll and phycobiliproteins. Treatment 1B (20 mL/L organic fertilizer; 125 ppm urea) resulted in the highest protein production.
Analisis Motivasi Kerja dalam Meningkatkan Kinerja Karyawan di PT Wibi Digital Teknologi Sekarwulan Sari, Dindy; Maharani, Haidilia; Saffana, Nadhira
Jurnal Sinergi Manajemen Vol 2 No 3 (2025): Jurnal SINERGI Manajemen
Publisher : YBAMB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70285/6k515w15

Abstract

Penelitian ini bertujuan untuk menganalisis motivasi kerja dalam meningkatkan kinerja karyawan di PT.Wibi Digital Teknologi. Penelitian ini menggunakan pendekat kualitatif deskriptif dengan teknik pengumpulan data melalui wawancara terhadap key informan dan empat informan dari berbagai posisi. Proses analisis data dilakukan melalui pengumpulan data, reduksi data, penyajian data dan penarikan kesimpulan. Hasil penelitian menunjukan bahwa Motivasi kerja memiliki pengaruh signifikan terhadap peningkatan kinerja karyawan. Kebutuhan Perwujudan Diri, serta keterlambatan atau absensi, Kerja Sama dan Kuantitas dalam mengerjakan pekerjaan faktor kunci dalam yang mendukung produktivitas. Manajemen perusahaan sangat disarankan untuk kebijakan pemberian motivasi kerja melalui pelatihan, monitoring dan yang terpenting penghargaan kepada setiap karyawan yang bekerja untuk perusahaan. Penelitian ini memberikan kontribusi dalam memahami pentingnya motivasi kerja sebagai strategi untuk meningkatkan kinerja sember daya manusia.
Co-Authors Maharani, Haidilia Nita Noriko Sekarwulan Sari, Dindy Wijihastuti, Risa Swandari