DEWI, ELVIRA AYU SINTA (2025) UJI CEMARAN BAKTERI Escherichia coli dan Salmonella sp PADA CINCAU HITAM YANG DIJUAL DI PASAR PALUR. Diploma thesis, Universitas Setia Budi.
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Abstract
Cincau hitam merupakan gel yang memiliki bentuk serupa dengan agar-
agar yang berasal dari ekstrak tanaman janggelan atau Mesona palustris. Cincau
hitam dapat menjadi makanan yang beresiko tinggi terkontaminasi bakteri karena
kebersihan dan sanitasi yang buruk. Penelitian ini bertujuan untuk mngetahui
adanya cemaran bakteri Salmonella sp dan Escherichia coli yang disesuaikan
dengan aturan BPOM No. 13 Tahun 2019 tentang batas cemaran mikroba dalam
pangan olahan.
Uji cemaran bakteri Escherichia coli pada cincau hitam dilakukan dengan
menggunakan metode Most Probable Number (MPN) yang terdiri dari uji
penduga, penegas dan uji pelengkap serta identifikasi bakteri dengan pewarnaan
Gram dan uji biokimia. Pada uji cemaran bakteri Salmonella sp dilakukan proses
pra-pengayaan, pengayaan dan isolasi pada media SSA serta identifikasi bakterin
menggunakan pewarnaan Gram da uji biokimia.
Berdasarkan hasil penelitian yang sudah dilakukan ditemukan adanya
cemaran bakteri Salmonella sp dan Escherichia coli pada masing-masing sampel
cincau hitam. Pada sampel pertama diketahui semua replikasi yang berjumlah 5
positif tercemar bakteri Salmonella sp dan nilai cemaran bakteri Escherichia coli sebesar ≥1.898/100 ml. Sementara pada sampel kedua diketahui 3 dari 5 replikasi positif tercemar bakteri Salmonella sp dan nilai cemaran bakteri Escherichia coli berkisar 7-30/100 mL. Berdasarkan hasil tersebut cincau hitam yang berasal dari dua pedagang berbeda tidak memenuhi persyaratan BPOM No. 13 Tahun 2019 tentang batas cemaran mikroba dalam pangan olahan.
Black grass jelly was a gel-like substance resembling agar, derived from
the extract of the Mesona palustris plant. Due to inadequate hygiene and
sanitation practices, black grass jelly was considered a high-risk food product for
bacterial contamination. This study aimed to investigate the presence of bacterial
contamination by Salmonella spp. and Escherichia coli in accordance with
Indonesian National Agency of Drug and Food Control (BPOM) Regulation No.
13 of 2019 concerning microbial contamination limits in processed foods.
The analysis of Escherichia coli contamination in black grass jelly was
conducted using the Most Probable Number (MPN) method, which comprised
presumptive, confirmed, and completed tests, followed by bacterial identification
through Gram staining and biochemical assays. The examination for Salmonella
spp. contamination involved pre-enrichment, enrichment, and isolation on
Salmonella Shigella Agar (SSA) media, with further identification using Gram
staining and biochemical characterization.
Based on the results, contamination by Salmonella spp. and Escherichia
coli was detected in all black grass jelly samples tested. In the first sample, all five replicates tested positive for Salmonella spp., with the Escherichia coli contamination level recorded at ≥1.898/100 mL. In the second sample, three out of five replicates were positive for Salmonella spp., and Escherichia coli
contamination levels ranged between 7–30/100 mL. These findings indicated that
black grass jelly from both vendors failed to meet the microbiological safety
standards stipulated in BPOM Regulation No. 13 of 2019 concerning microbial
contamination limits in processed foods.
| Item Type: | Thesis (Diploma) |
|---|---|
| Uncontrolled Keywords: | cincau hitam, Salmonella sp, Eshcherichia coli, MPN, biokimia. black grass jelly, Salmonella sp, Eschcherichia coli, MPN, biochemistry |
| Subjects: | Q Science > Q Science (General) Q Science > QR Microbiology |
| Divisions: | Universitas Setia Budi > Fakultas Farmasi > D3 Analis Farmasi dan Makanan |
| Depositing User: | Unnamed user with email baa.si@setiabudi.ac.id |
| Date Deposited: | 22 Dec 2025 03:18 |
| Last Modified: | 22 Dec 2025 03:18 |
| URI: | https://eprints.setiabudi.ac.id/id/eprint/18 |
