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Laju Pertumbuhan Jamur Rhizopus sp. pada Tempe Kacang Hijau (Phaseolus radiatus L.) Halifah Pagarra
Bionature Vol. 10 No. 2 (2009): Oktober 2009
Publisher : Jurusan Biologi Universitas Negeri Makassar

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Abstract

This research was a descriptive study, which aims to determine the rate of growth of the fungus Rhizopus sp. the green bean tempe. This research was conducted by growing the fungus on PDA medium using fungus inoculum of 1 gram of green beans with tempeh making dilutions, starting from the dilutions 10-2, 10-3and 10-4are plated on a petri dish of 0.1 mL and incubated for 24 hours. Variation of time of fermentation used without fermentation (0 h), 12 hours, 24 hours, 36 hours, 48 hours, 60 hours and 72 hours for each serial dilution. The number of fungi indirectly calculated using the count method bowls. The results of this study indicate that optimum growth is shown in 36 hours fermentation time with the number of colonies on the 10-2dilution of 69 colonies (6.9 x 103 colonies / g) and 10-3dilutions of the 27 colonies. While the 10-4dilution only at the time of fermentation 36, 48 and 60 hours of growth of 2 colonies and each colony 1. The longer the fermentation time decreased the amount of mushrooms.
The English Halifah Pagarra; Rachmawaty; Musawira; Handayani, Besti; Syaiful Haq, Muhammad Naufal
Biosel Biology Science and Education Vol. 14 No. 2 (2025): BIOSEL (Biology Science and Education: Jurnal Penelitian Sains dan Pendidikan)
Publisher : INSTITUT AGAMA ISLAM NEGERI AMBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33477/bs.v14i2.9376

Abstract

Matoa (Pometia pinnata) is a plant commonly used by the Indonesian people for traditional medicine due to its rich content of metabolites. This study aimed to analyze the phytochemical composition and antibacterial activity of matoa leaves The leaves were extracted using a 70% ethanol solvent with a ratio of 1:4 using the maceration method, and phytochemical screening was performed on the leaf extract. The antibacterial activity was tested against Staphylococcus aureus and Escherichia coli using the disc diffusion method. The results indicated that the matoa leaf extract contains various metabolites, including triterpenoids, steroids, flavonoids, phenolics, saponins, tannins, and alkaloids. Secondary metabolite compounds in matoa leaves are thought to be able to inhibit microbial growth so that inhibition zones can be formed. Furthermore, the antibacterial activity demonstrated that the matoa leaf extract effectively inhibited the growth of S. aureus and E. coli. the largest inhibition zone is of 18.22 mm at 10% extract concentration, and E. coli, with an inhibition zone largest is of 10.87 mm at 10% extract concentration. While the smallest inhibition zone in S. aureus is 15.29 mm at 7.5% concentration, and in E. coli is 5% at 5% extract concentration.. This study suggests that matoa leaves have the potential to serve as natural bioactive compounds and antimicrobial agents in the clinical industry. Keywords: Matoa, Phytochemical,  Antibacterial activity, Staphylococcus aureus, Escherichia coli
HUBUNGAN POLA MAKAN DAN AKTIVITAS FISIK DENGAN STATUS GIZI PESERTA DIDIK MA DDI KANANG S, Firman; Mushawwir Taiyeb, A; Halifah Pagarra
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 01 (2026): Volume 11 No. 01 Maret 2026
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i01.40645

Abstract

This study aims to determine whether there is a relationship between dietary patterns and physical activity with the nutritional status of students at MA DDI Kanang. The method used is quantitative with a correlational research design. The study population consisted of all students at MA DDI Kanang, with 142 respondents selected using purposive sampling. Data were collected using questionnaires on dietary patterns and physical activity, as well as nutritional status measurements through anthropometry. The results of the correlation test showed an R value of 0.330 and an R² value of 0.109, indicating that dietary patterns and physical activity simultaneously have a statistically significant relationship but with a low contribution level to nutritional status, which is 10.9%. Therefore, it can be concluded that there is a statistically significant but practically limited relationship between dietary patterns and physical activity with the nutritional status of MA DDI Kanang students.