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Identification of Secondary Metabolites and Proximate Analysis of Golden Apple Snails (Pomacea canaliculata L.) Meat Extract Pertiwi, Meilisha Putri; Saputri, Dina Dyah
Jurnal ILMU DASAR Vol 22 No 2 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i2.18508

Abstract

The growth of golden apple snails is very rapid and causes losses of paddy production. Therefore snails are also called pest, especially agricultural pest. Control of golden apple snails can be done by physical hand sorting and then processed into animal feed. Based on research golden apple snails proven have good nutritional content. Efforts to use golden apples nails pets become useful things such as animal feed is a sustainable conservation. Therefore, this study aims to carry out secondary metabolites identification, proximate testing, and antioxidant content of golden apple snails as an initial reference for the basic ingredients of animal feed manufacturing. The method use is hand sorting of golden apple snails at the research location, then brought to the laboratory to carry out the process of secondary metabolites identification, proximate testing, and antioxidant analysis. The results showed a golden apple snails (Pomacea canaliculata L.) extract containing active compunds of alkaloids, flavonoids, tannins and polyphenols, steroids, and glycoside. Proximate analysis showed that golden apple snails extract had a high protein content of 40,83% compared to carbohydrates and fats. These findings suggested that golden apple snailsmeat extract has the potential to be further utilized as an alternative feed for Pangasius sp.Keywords: golden apple snails. Pangasius sp., proximate testing, secondary metabolites.
ASSESSMENT OF WATER QUALITY IN SITU TLAJUNG HILIR USING POLLUTION INDEX AND SAPROBIC QUOTIENT APPROACHES Shakira, Shakira; Istiana, Rita; Saputri, Dina Dyah
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 12 No. 1 (2025): Biolink August
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v12i1.15660

Abstract

Situ Tlajung Hilir is a natural lake in West Java, utilized by the local community to support livelihoods and contributing to the balance of the surrounding ecosystem. However, pollution from industrial and residential activities has raised concerns over its declining water quality. This study aims to assess the water quality of Situ Tlajung Hilir using the Pollution Index (PI) and Saprobic Quotient (SQ) methods. A descriptive quantitative approach with purposive sampling was conducted at four observation stations. Research activities included field observation, sample collection, measurement of physical, chemical, and biological parameters, and laboratory analysis. Instruments were calibrated prior to use. PI values ranged from 1.02 to 1.04, indicating a slightly polluted status based on the Decree of the Minister of Environment No. 115 of 2003. SQ values ranged from -0.10 to -0.79, reflecting moderate to fairly heavy pollution. The PI analysis showed that dissolved oxygen (DO) and temperature did not meet Class III water quality standards. SQ analysis revealed a dominance of Euglenophyceae and Paramecium (Ciliates), both indicators of organic pollution. In conclusion, the water quality of Situ Tlajung Hilir is categorized as slightly to fairly heavily polluted. Emphasizing the need for ongoing monitoring and improved waste management to protect the aquatic ecosystem.
Daily Activities of Eclectus parrot (Eclectus roratus) at Ragunan Wildlife Park Istiana, Rita; Saputri, Dina Dyah; Shity Muzdhalifah
Journal on Biology and Instruction Vol. 5 No. 1 (2025)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/joubins.v5i1.8658

Abstract

This study examines the impact of the Augmented Reality (AR)-based Quantum Teaching model on high school students’ critical thinking and metacognitive skills in biology. As 21st-century education increasingly demands higher-order thinking, there is a growing need for innovative teaching approaches that foster these skills. The aim of this research was to determine whether combining AR technology with the Quantum Teaching model could enhance students’ cognitive and self-regulatory abilities. The study used a quasi-experimental pre-test post-test control group design, involving grade XI biology students at Pakusari State High School during the 2023/2024 academic year. Class XI-5 was randomly assigned as the experimental group and XI-4 as the control group. Data collection methods included observations, interviews, essay tests, and documentation, while data analysis was conducted using ANCOVA in SPSS version 26. The results showed that the experimental group experienced significantly greater improvements in both critical thinking and metacognitive skills compared to the control group. These findings suggest that the AR-based Quantum Teaching model effectively supports the development of essential academic competencies. The study concludes that integrating AR into student-centered teaching models not only enhances engagement but also promotes deeper learning. As a result, educators are encouraged to adopt AR-supported pedagogies, and schools should invest in digital infrastructure and teacher training to ensure successful implementation. The implications also extend to curriculum development, highlighting the potential of combining interactive technology with innovative instructional strategies to better prepare students for academic success and future challenges.