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Cultivating Microalgae with Biophotovoltaic to Produce Bioelectricity: A Bibliometric Analysis Muhamad Maulana Azimatun Nur; Raden Herjun Desta K. H; Ryan Keane Mahardika Pratama; Amanda Nur Affrida; Aulia Rahma Putri; Dwi Aulia Puspitaningrum; Md. Hasanuzzaman; Resti Nurmala Dewi
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 4 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i4.4828

Abstract

This review investigates the role of microalgae in bioelectricity production through biophotovoltaic (BPV) systems, focusing on their dual benefits of generating renewable energy and treating wastewater while capturing CO2. The objective of this paper is to conduct a bibliometric analysis of publications from 2013 to 2024 to understand research trends, key contributors, and research hotspots in the field of microalgae-based BPV systems. Methods used include statistical analysis through VOSviewer to visualize the connections between articles and authors. The results show significant advancements in integrating of nanomaterials and microbial fuel cell technologies for bioelectricity generation, as well as ongoing challenges in scalability, voltage balance, and material optimization. This review provides insights into future research directions for improving BPV systems.
Transforming Tofu Waste into a Growth Medium: Boosting Biomass and Proximate Content of Microalgae Nita Ariestiana Putri; Resti Nurmala Dewi; Rizka Ayu Yuniar; Ranti Amanda Mauliasantri
International Journal of Marine Engineering Innovation and Research Vol. 9 No. 4 (2024)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v9i4.4839

Abstract

This study explores the potential of tofu waste as a cost-effective alternative growth medium for cultivating Spirulina sp. and Nannochloropsis oculata, addressing the high costs of traditional nutrient media that limit large-scale applications. Despite the nutrient richness of tofu waste, its use as a sustainable growth substrate remains underexplored. This research aims to fill this gap by evaluating the growth performance and nutritional suitability of these microalgae in tofu-based media compared to standard controls. The cultivation process was conducted in a closed photobioreactor system, with harvesting methods including flocculation, centrifugation, and filtration. Results showed that tofu waste media supported biomass production comparable to standard cultivation media, with the highest biomass concentrations recorded at the 20% tofu waste treatment, yielding 0.23 ± 0.05 g L-1 for Spirulina sp. and 0.53 ± 0.2 g L-1 for Nannochloropsis oculata. At this concentration, the final COD levels were 840.84 mg L-1and 825.90 mg L-1, respectively. The lipid and protein contents were 2.44% and 1.71% for Spirulina sp., and 1.21% and 1.50% for Nannochloropsis oculata, respectively. These findings demonstrate that tofu waste can serve as an effective and low-cost growth substrate for Spirulina sp. and Nannochloropsis oculata, promoting circular economy principles within many sectors such as energy, food, and agriculture. This study underscores the potential of waste utilization to enhance the sustainability and economic viability of microalgae cultivation.
Advancing Fucoxanthin Production from Microalgae: A Bibliometric Analysis of Research Trends and Innovations Muhamad Maulana Azimatun Nur; Resti Nurmala Dewi; Faizah Hadi; Tunjung Wahyu Widayati; Danang Jaya; Nita Ariestiana Putri; Siti Fauziah; Alinda Fitrotun Nisya
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 2 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i2.6377

Abstract

Fucoxanthin has attracted significant public attention due to its extensive bioactive properties, including antioxidant, anti-inflammatory, and anti-obesity effects. This study conducts a bibliometric analysis to assess research trends, key contributors, and scientific progress in fucoxanthin studies. By utilizing data from prominent scientific databases, various bibliometric indicators, such as publication output, citation patterns, and collaborative networks, were analyzed. The analysis reveals a consistent rise in research publications over the past two decades, with significant contributions from countries like Germany, Japan, and China. Additionally, the study identifies leading institutions and influential authors who have significantly impacted the field. The results highlight the expanding interest in fucoxanthin's potential applications in pharmaceuticals, functional foods, and nutraceuticals. Furthermore, the study sheds light on collaborative efforts between academic institutions and industries that drive innovation and commercialization. This comprehensive evaluation not only provides an understanding of the current research landscape but also identifies future directions for scientific exploration and technological advancements. The findings serve as a valuable resource for researchers, policymakers, and industry stakeholders to make informed decisions and foster innovation in the utilization of fucoxanthin for human health and sustainability.
COMPARATIVE STUDY OF WATER CONTENT AND SENSORY QUALITY OF SALTED LEMURU FISH (Sardinella lemuru) WITH DIFFERENT SALTING METHODS Dewi, Resti Nurmala; Iksan, Muhammad
Chanos Chanos Vol 23, No 2 (2025): CHANOS CHANOS
Publisher : Politeknik Kelautan dan Perikanan Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/chanos.v23i2.18382

Abstract

Salting is one of the most widely used traditional preservation methods for producing salted fish, including lemuru (Sardinella lemuru). However, scientific information regarding the effect of different salting techniques on the water content and sensory characteristics of salted lemuru remains limited. This study aims to compare the water content and sensory quality of salted lemuru processed using wet salting (50% and 100%) and dry salting (5% and 10%) with different drying durations (5, 7, and 9 hours). The production process followed the Indonesian National Standard SNI 8273:2023, while moisture analysis referred to SNI 2354.2:2015. Sensory evaluation was conducted by 30 untrained panelists assessing appearance, odor, and texture. Results showed that dry salting produced lower moisture content (7.22-8.27%) compared to wet salting (9.52-11.41%). In contrast, the highest appearance and texture sensory scores were obtained from wet salting, particularly treatment B100-9 (score 8.60), whereas dry salting with high salt concentration and prolonged drying (K10-9) resulted in decreased texture and odor quality due to excessive dehydration. Overall, the findings confirm that salting method significantly affects the final quality of salted lemuru, and wet salting with an optimal salt concentration provides the best balance between moisture reduction and desirable sensory characteristics.