Delni Alek Candra
Politeknik Pertanian Negeri Payakumbuh

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

Circular Bioeconomy Pathways for High-Value Agricultural Waste Valorization: A Systematic Review Veronika Sriwulantari; Amri Syahardi; Delni Alek Candra; Heri Faisal Harahap; Veronice Veronice
Journal of Agriculture Vol. 5 No. 01 (2026): Research Articles, March 2026
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/joa.v5i01.8241

Abstract

Agricultural intensification has increased the volume of residues and by-products generated across farming systems, while conventional disposal practices continue to create environmental burdens. This systematic literature review examines how agricultural waste is converted into higher-value products within a circular bioeconomy framework. Using a PRISMA-based approach and Scopus as the main database, the review screened the literature and synthesized 10 studies that met the final eligibility criteria. The included studies were grouped into four valorization pathways: fuels and energy carriers, biocomposites and bio-based materials, catalysts and functional carbon materials, and biomaterials produced through biotechnological processes. The evidence shows that fuel-oriented pathways, including pelletization, co-combustion, and biogas-based utilization, are the most technologically mature and currently offer the clearest route to scale. Material-based pathways, especially biocomposites and paper substitution, offer greater value addition and resource efficiency, but their industrial expansion remains constrained by processing costs and system integration. Agricultural residues also show strong potential as precursors for catalysts and functional carbon materials for environmental remediation, while fungal bioconversion offers an emerging route for producing protein-rich biomass. Across pathways, the review identifies a recurring trade-off between technological maturity, value addition, and implementation complexity. The main contribution of this review is a cross-pathway synthesis that compares agricultural waste valorization not only by product type, but also by circularity features, readiness, and evidence strength. Future research should prioritize integrated techno-economic assessment, life-cycle assessment, standardized circularity metrics, and pilot-scale validation to support large-scale implementation.
PENGARUH KOMPENSASI, DISIPLIN KERJA, DAN LINGKUNGAN KERJA TERHADAP KINERJA KARYAWAN DI AFDELING FANTA PT. MUTIARA AGAM Royhan Hidayat Nasution; Arna Yulis; Delni Alek Candra
Jurnal Ilmiah Mahasiswa AGROINFO GALUH Vol 12, No 3 (2025): September 2025
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/jimag.v12i3.19051

Abstract

ABSTRAK Manajemen perusahaan dapat meningkatkan kinerja karyawan melalui kompensasi yang sesuai, penerapan disiplin kerja yang konsisten, dan lingkungan kerja yang mendukung karena ketiga hal tersebut menjadi faktor utama yang mempengaruhi kinerja mereka. Penulis melaksanakan penelitian untuk menganalisis pengaruh kompensasi, disiplin kerja, dan lingkungan kerja terhadap kinerja karyawan di Afdeling Fanta PT. Mutiara Agam secara parsial dan simultan. Penelitian ini menggunakan metode kuantitatif dengan pendekatan deskriptif dan analisis regresi linear berganda. Peneliti mengumpulkan data melalui observasi, wawancara, kuesioner, dan dokumentasi dari 89 responden yang merupakan seluruh populasi karyawan tetap di afdeling tersebut. Peneliti menemukan bahwa baik secara terpisah maupun secara bersamaan, variabel-variabel tersebut berpengaruh signifikan terhadap kinerja karyawan. Kompensasi yang tepat, disiplin kerja yang tinggi, serta lingkungan kerja yang mendukung mampu meningkatkan produktivitas dan kualitas kerja karyawan. Penelitian ini diharapkan dapat memberikan wawasan bagi perusahaan dalam mengelola sumberdaya manusia secara optimal serta menjadi dasar dalam pengambilan kebijakan yang dapat meningkatkan kesejahteraan karyawan, disiplin kerja, dan efektivitas operasional perusahaan secara keseluruhan. Kata Kunci: Kompensasi, Disiplin kerja, Lingkungan kerja, dan Kinerja karyawan. ABSTRACT Company management can improve employee performance through appropriate compensation, consistent implementation of work discipline, and supportive work environment because these three things are the main factors that affect their performance. The author conducted a study to analyze the effect of compensation, work discipline, and work environment on employee performance in the Fanta Division of PT. Mutiara Agam partially and simultaneously. This study uses a quantitative method with a descriptive approach and multiple linear regression analysis. The researcher collected data through observation, interviews, questionnaires, and documentation from 89 respondents who were the entire population of permanent employees in the division. The researcher found that both separately and simultaneously, these variables had a significant effect on employee performance. Appropriate compensation, high work discipline, and a supportive work environment can increase employee productivity and work quality. This study is expected to provide insight for companies in managing human resources optimally and become a basis for making policies that can improve employee welfare, work discipline, and the overall operational effectiveness of the company.  Keywords: Compensation, Work discipline, Work environment, and Employee performance.