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Angga Rahabistara Sumadji
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Biospektrum Jurnal Biologi
Published by Universitas Katolik Widya Mandala Surabaya
ISSN : -     EISSN : 27752852     DOI : -
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology
Jurnal Ilmiah Biospektrum adalah jurnal ilmiah online Prodi Biologi, Fakultas Teknologi Pertanian, Universitas Katolik Widya Mandala Surabaya (Kampus Kota Madiun). Jurnal ini merupakan terbitan berkala 6 bulan, dengan jadwal terbit bulan April dan Oktober di setiap tahunnya. Artikel pada jurnal ini ditujukan untuk mewadahi publikasi artikel yang bersumber dari mahasiswa, dosen dan guru. Artikel yang dimuat di jurnal ini adalah artikel hasil penelitian individu ataupun institusi.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 62 Documents
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UJI AKTIVITAS ANTIBAKTERI EKSTRAK DAUN PEPAYA JEPANG (Cnidoscolus aconnitifolius) METODE DIFUSI SILINDER Septya Dwi Hartanti; Agus Purwanto; Angga Rahabistara Sumadji
Biospektrum Jurnal Biologi Vol 1, No 2 (2023): Biospektrum Jurnal Biologi
Publisher : Program Studi Biologi - Universitas Katolik Widya Mandala Surabaya (kampus Kota Madiun)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/bios.v1i2.1253

Abstract

The leaves of the Japanese papaya plant (Cnidoscolus aconitifolius) contain active compounds of flavonoids, tannins, saponins, alkaloids and terpenoids which have the potential to have antibacterial activity. The aim of this research was to determine the antibacterial activity of Japanese papaya leaves against the test bacteria Staphylococcus aureus. The research was carried out through maceration extraction using 96% ethanol to obtain a thick extract. The antibacterial activity test was carried out using the diffusion cylinder method using sterile distilled water as a negative control while as a positive control using ciprofloxacin. Antibacterial activity was carried out through varying concentrations, namely 10%, 20% and 30%. The results of the study showed that Japanese papaya leaf extract with a concentration of 30% was more effective in inhibiting the growth of Staphylococcus aureus bacteria compared to 10% and 20% Japanese papaya leaf extract. The largest inhibition zone measurement at a concentration of 30% was 17.296 mm while concentrations of 10% and 20% were respectively 15,222 mm, and 13,018 mm.
KUALITAS FISIKA, KIMIA, DAN MIKROBIOLOGI AIR TAP UNIVERSITAS SEBELAS MARET SURAKARTA Yovanisa Meirawati; Tjahjadi Purwoko; Ratna Setyaningsih
Biospektrum Jurnal Biologi Vol 1, No 2 (2023): Biospektrum Jurnal Biologi
Publisher : Program Studi Biologi - Universitas Katolik Widya Mandala Surabaya (kampus Kota Madiun)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/bios.v1i2.1249

Abstract

Universias Sebelas Maret (UNS) Surakarta has a piped drinking water distribution system. Drinking water from a piped system is called tap water. Tap water is a public facility provided by the government in European cities but not in Indonesia. However, consumption of tap water by the academic community at UNS Surakarta was relatively low. This was caused by the trust and worthiness of UNS’s tap water. This research aimed to determine the quality of tap water at UNS Surakarta, both in aspects of physics, chemistry and microbiology. Selection of sampling points based on the location of the distribution pipes and sampling using the grab sampling method. The tap water analyzed by Indonesian National Standard (SNI) test for drinking water. The results were compared with the Indonesian Government Regulation on Drinking Water, namely PERMENKES 492/2010. The quality of physical, chemical and microbiological aspects of tap water at UNS Surakarta were meet Indonesian Government Regulations, namely Permenkes 492/2010. Thus, tap water from UNS Surakarta is equivalent to bottled drinking water and worth to drink.

Page 7 of 7 | Total Record : 62

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