INCREASING OF HOUSEWIVES POTENTIAL IN PROCESSING DOMESTIC ORGANIC WASTE BY USING TAKAKURA METHOD IN CIBIRU WETAN VILLAGE, BANDUNG REGENCY. Domestic waste (DW) is a major environmental challenge for many urban local bodies in Indonesia both in the village and in the city, where urbanization, industrialization and economic growth have resulted in increased waste generation per person. One way to solve this waste is to turn organic domestic into compost. Composting, the recycling of organic waste such as vegetation and food waste reduces the amount of waste going to landfill and is, therefore, a rapidly growing sector. Desa Cibiru Wetan, Kab. Bandung, West Java is one of the villages that has learned about how to process organic waste into compost and become a pilot project but because of the distance between raw materials and management with compost incubator so that compost production is disturbed. Therefore, the purpose of the project activity was to produce compost from domestic organic waste by the Takakura method. In this method, a small incubator was used and placed at the home of the community. Although on a small scale but with many multipliers, it able to produce an abundant compost and can be an alternative for the existing compost incubator method. The stage included counseling and socialization, training in making incubator Takakura, training in production compos,t and monitoring and evaluation. The results showed a good understanding of both groups for both the socialization and counseling stages as well as for the practice of production of compost. In conclusion, the activity on the production of compost by using Takakura method able was to solved for domestic organic waste and remind set the interest of the community in producing compost.
Air mineral merupakan salah satu kebutuhan manusia yang paling penting. Kebutuhan air minum dapat dipenuhi dari AMDK. Ada syarat yang harus dipenuhi oleh AMDK untuk menjamin kualitas air minum yang layak dikonsumsi. Salah satu syarat AMDK adalah tidak mengandung logam berat tembaga (Cu) yang lebih dari 0,5 bpj. Tembaga termasuk logam yang dibutuhkan oleh tubuh dalam jumlah sedikit tetapi dalam jumlah yang berlebihan akan bersifat toksik. Oleh karena itu, diperlukan analisis kadar Cu pada AMDK khususnya di daerah Panyileukan guna menjamin kualitas AMDK. Penelitian ini terdiri dari 2 tahapan, yaitu validasi, penetapan kadar sampel menggunakan SSA pada panjang gelombang 324,75 nm dan statistika. Dari hasil validasi, didapatkan persamaan kurva kalibrasi y = 0,1537x + 0,0134 dengan nilai koefisien korelasi (r) sebesar 0,998, batas deteksi dan kuantisasi berturut-turut sebesar 0,03 dan 0,12 bpj, persen perolehan kembali 0,5 – 1,7% dengan nilai SBR kurang dari 2 %. Hasil pengukuran kadar Cu pada AMDK berkisar antara 0,00100 – 0,00192 bpj. Dari data AMDK dapat dikatakan bahwa kadar Cu tidak melebihi ambang batas yang ditetapkan oleh SNI 01-3553-2006 yaitu 0,5bpj.
Pegagan merupakan tanaman yang memiliki banyak manfaat dan termasuk kedalam 50 jenis tanaman obat yang sering digunakan sebagai obat tradisional. Kurangnya kontrol kualitas obat tradisional dapat mengakibatkan banyaknya kecurangan. Pendekatan multikomponen seperti pola sidik jari dapat digunakan untuk pengendalian kualitas bahan baku obat tradisional. Tujuan penelitian adalah untuk menentukan pola sidik jari pegagan menggunakan metode FTIR dikombinasikan dengan PCA. Metode yang digunakan yaitu pengukuran spektrum menggunakan FTIR pada bilangan gelombang 4000-650 cm -1 dengan resolusi 4 cm -1 . Pola sidik jari herba pegagan di Jawa Barat didapatkan scores plot nilai PC-1 terhadap PC-2 81% (PC-1 45% dan PC-2 36%) herba pegagan daerah Jawa Barat tidak dapat berada dalam satu kuadran yang sama, herba pegagan daerah Sumedang berada pada kuadran satu, daerah Bandung, Pangandaran dan Sukabumi berada pada kuadran dua dan Bogor berada pada kuadran tiga. Validasi analisis PCA menunjukkan Score plot 73% (PC-1 44% dan PC-2 29%) dan nilai eigen value PC-1 dan PC-2 berturut-turut sebesar 3,379 dan 2,705. Metode FTIR dikombinasi PCA dapat mengklasifikasikan masing-masing variabel dari setiap tanaman dengan menentuan jumlah komponen utama yang terpilih. Diperoleh profil sidik jari ekstrak etanol 96% herba pegagan di daaerah Jawa Barat menggunakan FTIR diperoleh hasil spektrum dari 5 jenis sampel tersebut, kombinasi dengan PCA. Profil sidik jari dalam Score plot menunjukkan pegagan sumedang memiliki perbedaan dengan daerah Bandung,
Toraja arabica coffee is well known for its higher price and quality compared to robusta coffee, but its commercial is often added with other ingredients, including robusta coffee which has low economic value. Visual inspection is unreliable in roasted ground coffee due to the resemblance of its chemical content. The ATR-FTIR method tandem PCA was able to provide an overview of the typical chemical content of the coffee preparation. The purpose of this study was to evaluate the robusta coffee as adulterant in Toraja arabica coffee preparation by using ATR-FTIR. Toraja arabica coffee beans were obtained from three smallholder plantations around Toraja and Robusta coffee beans were obtained from Toraja, Lampung, and West Java coffee plantations. The coffee beans were roasted and then macerated using 96% ethanol for 3×24 hours and concentrated using a rotary evaporator until being thick. The IR spectrum of each extract was measured using the ATR-FTIR spectroscopy at a range of 4000-650 cm-1. The results show there is a similarity in the IR spectrum patterns and there is only a small difference in the transmittance of Toraja arabica coffee and robusta coffee. Furthermore, the IR spectrum is clustered by using PCA in R program. The projection of three commercial samples shows that samples 1 and 2 do not contain robusta coffee while sample 3 shows the presence of robusta coffee. In conclusion, the ATR-FTIR spectroscopic method tandem PCA was able to clustered the presence or absence of robusta coffee content in the Toraja arabica coffee.
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