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Efek Pemberian Pupuk Organik Cair Berbasis Kulit Buah (Eco Enzyme) terhadap Pertumbuhan Tanaman Pakcoy (Brassica chinensis L.) Sinaga, Wulan Sari; Limeranto, Desyana Millenia; Pangala, Eugenia Larissa Bakti; Madyaningrana , Kukuh
Jurnal Pro-Life Vol. 10 No. 2 (2023): Juli
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/jpvol6Iss2pp102

Abstract

Household organic waste can be used as material for organic fertilizer for supporting urban farming activities. Organic fertilizer is beneficial as an effort to reduce waste’s negative impact to environment, and to minimize the use of chemical fertilizers. This research aimed to study the macro nutrient content of fruit peel based-liquid organic fertilizer (LOF) and its effect on the growth of Pakcoy (Brassica chinensis L.). Several fruit peels from household organic waste such as banana, mango, orange, dragon fruit, and papaya peels were used as material for LOF preparation. The research was conducted with completely randomized design (CRD) method with 5 treatments and 5 replications, namely the K- (without fertilizer, only water), K+ (0.2 mL commercial LOF), P1 (0.1 mL fruit peel based-LOF), P2 (0.2 mL fruit peel based-LOF) and P3 (0.4 mL fruit peel based- LOF) for 56 days of observation. The obtained data were analyzed using one-way ANOVA. Results showed that macro nutrients of fruit peel based LOF did not yet meet the quality standards set by the Ministry of Agriculture, and the dose of 0,4 ml fruit peels based-LOF showed the best effect to support the growth of the Pakcoy plant in all Pakcoy growth parameters. Keywords: Fruit Peels, eco enzyme, macro-nutrients, pakcoy
Analisa Risiko Kesehatan Cemaran Krom dalam Beras di Kecamatan Jetis, Yogyakarta: Health Risk Analysis of Chromium Contamination in Rice in Jetis District, Yogyakarta Sinaga, Wulan Sari; Rahardjo, Djoko; Krismono, Krismono
Biospecies Vol. 16 No. 2 (2023): Juli 2023
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biospecies.v16i2.20205

Abstract

The distribution of chromium originating from industrial waste disposal activities into the Opak River can pollute the flow of rice irrigation water which has an impact on food safety, especially rice. This study aims to determine the concentration of hexavalent chromium, the daily intake rate of age groups, and the effect of chromium on health risks. This research was conducted in Jetis District, Bantul, Yogyakarta with 3 sub-district locations: Canden Village, Trimulyo Village, and Sumber Agung Village. The research samples used were 60 rice samples from their own harvest using irrigation water from the Opak River using a random sampling method. Analysis of hexavalent chromium in rice was carried out with a preparation of 15 grams and analyzed using a HACH DR 2700 Spectrophotometer. The results showed that 100% of rice samples in Jetis District were contaminated with hexavalent chromium. The chromium concentration in the 3 villages ranged from 0.054-0.604 mg/kg with the highest mean value of 0.224 mg/kg found in Canden village. The pattern of chromium intake from rice consumption in 3 sub-districts ranged from 0-1909 µg/day with a mean value of 971 µg/day. The average value of chromium intake patterns in 3 sub-districts is far beyond the safe limit set by WHO of 320 µg/day. From the health risk calculations, the Risk Quotient values obtained for the subdistricts of Canden, Trimulyo, and Sumber Agung villages were respectively 3.00, 2.00, and 2.00. The RQ value in 3 sub-districts is above the safe limit set by WHO at RQ > 1. Based on the calculation of the risk of cancer, seen from the ECR value, the results obtained range from 1.E-01 – 2.E-01, this ECR value is far beyond the set safe limit. by WHO is 10-4. Chromium concentration, daily intake rate, consumption patterns, and characteristics of respondents influence health risks. Keywords: Hexavalent Chromium, Rice, Health Risk Analysis   Abstrak Distribusi kromium yang bersumber dari aktivitas pembuangan limbah industri ke Sungai Opak dapat mencemari aliran air irigasi persawahan yang berdampak pada keamanan pangan terutama beras. Penelitian ini bertujuan untuk mengetahui konsentrasi kromium heksavalen, laju asupan harian dari kelompok umur, dan pengaruh kromium terhadap risiko kesehatan. Penelitian ini dilakukan di Kecamatan Jetis, Bantul, Yogyakarta dengan 3 lokasi kelurahan yaitu Desa Canden, Desa Trimulyo dan Desa Sumberagung. Sampel penelitian yang digunakan adalah beras sebanyak 60 sampel yang berasal dari hasil panen sendiri yang memanfaatkan air irigasi sungai Opak dengan metode random sampling. Analisis kromium heksavalen pada beras dilakukan dengan preparasi sebanyak 15 gram dan dianalisis menggunakan alat Spektrofotometer HACH DR 2700. Hasil penelitian menunjukkan bahwa 100% sampel beras di Kecamatan Jetis telah terkontaminasi kromium heksavalen. Konsentrasi kromium pada 3 desa berkisar sebesar 0,054-0,604 mg/kg dengan nilai rerata tertinggi sebesar 0,224 mg/kg terdapat di desa Canden. Pola asupan kromium dari konsumsi beras pada 3 kelurahan berkisar 0-1909 µg/hari dengan nilai rerata sebesar 971 µg/hari. Nilai rerata pola asupan kromium di 3 kelurahan jauh melewati batas aman yang ditetapkan oleh WHO sebesar 320 µg/hari. Dari perhitungan risiko kesehatan, diperoleh hasil nilai Risk Quotient untuk kelurahan desa Canden, Trimulyo, Sumberagung secara berurutan sebesar 3,00, 2,00, 2,00. Nilai RQ pada 3 kelurahan diatas batas aman yang ditetapkan oleh WHO sebesar RQ > 1. Berdasarkan perhitungan risiko terjadinya kanker, dilihat dari nilai ECR diperoleh hasil berkisar1,E-01 – 2,E-01, nilai ECR ini jauh melewati batas aman yang ditetapkan oleh WHO sebesar 10-4. Konsentrasi kromium, laju asupan harian, pola konsumsi, karakteristik responden berpengaruh terhadap risiko kesehatan. Kata kunci: Kromium Heksavalen, Beras, Analisa Risiko Kesehatan