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All Journal Jurnal Pembelajaran dan Biologi Nukleus
Wijayadi, Imam
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media

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Organoleptic Evaluation and Consumer Preferences for Singkil Tea and Kombucha Products (Premna corymbose Rottl. Et Willd) Pribadi, Teguh; Zakiyyah, Zulfa; Anisa, Nurul; Wijayadi, Imam; Masitah, Masitah; Sari, Eadvin Rosrinda Awang; Hadi, Ingghrid Ranesti Clarita; Rahmawati, Ayu Indah
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 2: Jurnal Pembelajaran Dan Biologi Nukleus June 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i2.7120

Abstract

Background: Changes in tea consumption trends present opportunities for the tea industry, especially as alternative raw materials have been tested in recent years to develop tea and kombucha with distinct organoleptic and functional properties. This study evaluates the organoleptic characteristics and consumer preferences for Singkil tea and Singkil kombucha. Methodology: A sensory evaluation was conducted with 30 untrained panelists to assess color, aroma, taste, texture, and overall acceptability using a hedonic scale. Additionally, the alcohol content was measured. Findings: The results of the hedonic test indicated that all treatments fell into category 3 "slightly liked", suggesting an acceptable level of consumer preference. On average, both Singkil tea and Singkil kombucha received an acceptance score of 3, indicating that they were "slightly liked." This suggests their potential as alternative beverages suitable for commercialization. Furthermore, the safety of the product was confirmed, as it contains 0% alcohol, meets halal standards. Contribution: This study concludes that Singkil kombucha has the potential to be a viable alternative beverage for the market, and that it is safe for consumption due to its 0% alcohol content, which complies with halal standards
Descriptive Study of Waste Generation and Management in the Joint Lecture Building State University of Malang Wijayadi, Imam; Salim, Fitrah Amalia; Adawiyah, Rabiatul; Rochmah, Azizah Nur; Suhadi, Suhadi; Al-Muhdhar, Mimien Henie Irawati
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 4: Jurnal Pembelajaran Dan Biologi Nukleus December 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i4.7108

Abstract

Background: The State University of Malang has substantial potential for solid waste generation due to the high density of academic activities. Although general estimates of waste volume are available, detailed data on waste characteristics and composition within campus facilities remain limited. This study aims to quantify waste generation at the food courts of the A19 and A20 Joint Lecture Buildings, evaluate existing waste management practices, and assess the potential for recyclable waste utilization. Methodology: A quantitative descriptive approach was applied. Waste generation measurements were conducted in accordance with the Indonesian National Standard SNI 19-3964-1994 by analyzing waste production and composition over eight consecutive days. Average waste generation per seat, waste volume, and specific gravity were calculated, and waste materials were classified based on their characteristics and sources. Findings: The results indicate daily variations in waste generation, with average rates of 0.14 kg/seat/day at Food Court A19 and 0.07 kg/seat/day at Food Court A20. The dominant waste fractions were paper, plastic, and food waste, reflecting consumption patterns within the study area. Variations in waste volume were associated with fluctuations in academic activities and food service operations. Organic waste shows potential for eco-enzyme production and takakura composting, while paper and plastic waste may be managed through structured collection programs. Contribution:  This study provides site-specific empirical data on waste generation rates and composition within a higher education campus, supporting data-driven improvements in campus-scale waste management strategies
Co-Authors Anisa, Nurul Hadi, Ingghrid Ranesti Clarita Masitah - Mimien Henie Irawati Rabiatul Adawiyah Rahmawati, Ayu Indah Rochmah, Azizah Nur Salim, Fitrah Amalia Sari, Eadvin Rosrinda Awang Suhadi Suhadi Teguh Pribadi Zakiyyah, Zulfa