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Journal : Hayyan Journal

Valorization of Trash Fish Through Drying Innovations: Nutrient Stability of Protein, Calcium, and Phosphorus Salnus, Subakir; Zulfian Armah
Hayyan Journal Vol. 2 No. 2 (2025): June
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i2.3274

Abstract

Trash fish, often regarded as low-value bycatch, actually holds significant potential as a source of protein and essential minerals such as calcium and phosphorus. This study aims to evaluate the effect of different drying methods—oven drying at varying temperatures (40°C, 60°C, 80°C, and 100°C) and sun drying on the protein, calcium, and phosphorus content of trash fish. Laboratory analyses were conducted using the Kjeldahl method for protein determination and atomic absorption spectrophotometry (AAS) for calcium and phosphorus content. The results revealed that increasing oven drying temperatures significantly reduced protein levels, while sun drying maintained a protein content close to the optimal range. In contrast, calcium and phosphorus levels showed no significant differences across drying methods. Therefore, low-temperature oven drying or sun drying is recommended to preserve the nutritional quality of trash fish effectively.
Assessing Toxic Levels in Facial Creams from Burung-Burung Traditional Market, Gowa Salnus, Subakir
Hayyan Journal Vol. 2 No. 1 (2025): February
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i1.3373

Abstract

Facial cream is a skin care product that is widely used to improve appearance and overcome various skin problems. However, some unregistered products, especially those sold in traditional markets, can contain hazardous materials such as mercury. This study aims to identify the presence and levels of mercury in unregistered facial whitening creams sold in the Burung-Burung Traditional Market, Pattallassang District, Gowa Regency. Samples were analyzed using the Atomic Absorption Spectrophotometry (AAS) method. The results showed that five of the eight samples contained mercury exceeding the threshold set by BPOM RI, which is 1 mg/kg. This finding emphasizes the need for stricter regulation and supervision of cosmetic products to protect public health.
Systematic Literature Review: Isolation of Anthocyanin Compounds from Sweet Potato (Ipomoea batatas) Salnus, Subakir
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Anthocyanins are natural pigments belonging to the flavonoid group, widely found in various plant parts, particularly fruits, flowers, and peels, where they are responsible for red, purple, and blue colors. These compounds possess extensive potential in the fields of food, health, cosmetics, and pharmaceuticals due to their bioactive properties, especially as antioxidants. However, anthocyanins exhibit low stability against environmental factors such as temperature, pH, light, oxidation, and processing conditions, which affects the effectiveness of their isolation and utilization in practical applications. Therefore, an appropriate modern technological approach and process optimization ranging from extraction and purification to product stabilization—are required. This Systematic Literature Review (SLR) aims to comprehensively analyze various isolation techniques for anthocyanins from sweet potatoes, including conventional and technology-assisted extraction methods, purification techniques, stability challenges, and opportunities for developing sustainable industrial methods. Literature searches were conducted on published scientific articles between 2016–2026 , initially yielding a total of 274 publications, from which 13 articles were selected according to the inclusion criteria. The majority of studies utilized the tubers as the source of anthocyanins. The review findings indicate that the optimization of extraction methods is proven to be crucial. Methods such as ASE, UAE, HPCD, and SCCO2 offer significantly higher yields compared to conventional extraction. This review is expected to serve as a scientific reference for the development of efficient, eco-friendly, and commercially valuable anthocyanin isolation technology.
Isolation and Medicinal Applications of Clove Eugenol : Systematic Literature Review Salnus, Subakir
Hayyan Journal Vol. 2 No. 3 (2025): October
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

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Abstract

This review synthesizes research on "Good techniques for isolation and purification of chemical composition of clove compounds, focusing on eugenol, and their medicinal uses" to address inconsistencies in extraction efficacy and bioactivity preservation. The review aimed to evaluate extraction and purification methods for eugenol isolation, benchmark yield and purity, identify associated medicinal properties, compare conventional and green technologies, and analyze extraction parameters influencing bioactivity. A systematic analysis of studies employing hydro-distillation, Soxhlet, microwave-assisted, ultrasound-assisted, supercritical CO2, and deep eutectic solvent extractions was conducted, alongside chemical and chromatographic purification techniques. Findings indicate that microwave-assisted and ultrasound-assisted methods achieve higher eugenol yields (up to ~20%) and maintain bioactivity more effectively than conventional methods, while green technologies reduce solvent toxicity and energy consumption. Chemical purification attains high purity (>95%) but often compromises yield and sustainability. Analytical methods such as GC-MS and HPLC provide robust purity assessment, though standardization remains limited. Bioactivity assays confirm strong antioxidant, antibacterial, and antiinflammatory effects linked to extraction parameters and purity levels. Integration of extraction and purification processes is emerging but underdeveloped, with scalability and reproducibility challenges persisting. These findings underscore the need for standardized, sustainable protocols optimizing yield, purity, and medicinal efficacy of eugenol, informing future pharmaceutical and nutraceutical applications.