The grafting product of maleic anhydride onto cyclizednatural rubber have been produced in the presence of trimethylol propane triacrylatecomonomer which is processed in an internal mixer 150°C 80 rpm. In this research, the ratio of Tris / maleic anhydride used is 1: 2; 1: 1 and 2: 1.All grafted product was purified to determine the degree of grafting for each graft product by the titration method. The degree of grafting increases with increasing trimethylol propane triacrylate mole ratio. The highest degree of grafting is obtained in moles ratio of 2: 1 which is to 5.88%.

Abstrak: Masyarakat desa Perpanden dominan bekerja sebagai petani tanaman hortikultura dan perkebunan. 15 petani mitra yang tergabung dalam kelompok tani Mekar Jaya membudidayakan sayur dan buah sepanjang tahun. Permasalahan yang dihadapi petani mitra adalah rendahnya produktivitas dan ketergantungan pada pupuk kimia. Kelangkaan pupuk kimia bersubsidi seperti urea dan NPK menyebabkan harga pupuk tinggi di pasaran sehingga petani tidak mampu membelinya. Untuk itu tim pengabdian bertujuan untuk memberikan pendampingan dan pelatihan pembuatan eco enzyme dan PSB sebagai pupuk organik dari limbah sayur dan buah. Metode pelaksanaan PKM dibagi menjadi dua tahap, yaitu tahap sosialisasi dan tahap pelatihan. Hasil akhir pengabdian menunjukkan bahwa terjadi peningkatan sebesar 85,3% terhadap pemahaman dan kemampuan petani membuat eco enzyme dan PhotoSyntetic Bacteria (PSB).Abstract: Perpanden villagers predominantly work as horticultural crops and plantation farmers. 15 partner farmers who are members of the Mekar Jaya farmer group cultivate vegetables and fruit throughout the year. The problems farmer are low productivity and dependence on chemical fertilizers. The scarcity of subsidized chemical fertilizers such as urea and NPK causes the price of fertilizer to be high in the market so that farmers cannot afford it. For this reason, the service team aims to provide assistance and training in the manufacture of eco enzyme and PSB as organic fertilizer from vegetable and fruit waste. The PKM implementation method is divided into two stages, namely the socialization stage and the training stage. The final result of the service showed that 85.3% there was an increase in the understanding and ability of farmers to make eco-enzymes and PhotoSynthetic Bacteria (PSB).

The application of biopesticides is one of the safest alternatives to realize organic agriculture that does not cause harmful impacts to both consumers and the environment. This activity aims to apply biopesticides in eradicating fruit flies (Bactrocera sp.) on Sweet Orange (Citrus X Sinensis) plants. The partner location is the Bukit Rumah Sendi Farmers Group in Karo Regency. Eucalyptus grandis leaves were extracted using steam distillation then the concentration of 1,8 Sineol was determined using GCMS and the concentration was 52%. Eucalyptus oil was mixed with kerosene and detergent then determined the LC50 value in fruit flies and observed for 24, 48, 72, and 96 hours and produced an LC50 value of 35%. This shows that biopesticides are quite effective in eradicating fruit flies.

Keamanan produk pangan olahan sangat diperlukan untuk mencegah pangan dari kemungkinan cemaran biologis, kimia, dan benda lain yang dapat merugikan dan membahayakan kesehatan manusia serta bertentangan dengan agama, keyakinan, dan budaya masyarakat sehingga aman untuk dikonsumsi, termasuk makanan yang mengandung lemak babi sehingga diperlukan metode analisis yang akurat di laboratorium. Penelitian ini bertujuan untuk menganalisis lemak babi pada produk pangan olahan menggunakan Spektroskopi UV-Vis. Dengan menggunakan metode spektrometri, diperoleh panjang gelombang optimum pada spektroskopi UV-Vis 270 nm, dengan konsentrasi lemak babi pada produk pangan olahan corned babi masing-masing sebesar 2,2703 %,