ABSTRAKTelah dilakukan penelitian untuk mengetahui sifat fisik-kimia dan organanoleptik bawang goreng Palu yang digoreng pada berbagai taraf frekuensi pemakaian minyak goreng yaitu F 0 : minyak segar, F 1 : 1 kali pemakaian, F 2 : 2 kali pemakaian, F 3 : 3 kali pemakaian, F 4 : 4 kali pemakaian, F 5 : 5 kali pemakaian dan F 6 : 6 kali pemakaian, setiap taraf diulang tiga kali. Frekuensi pemakaian minyak goreng pengaruhnya sangat nyata menurunkan warna, tekstur, kadar air, minyak dan tingkat kesukaan panelis terhadap kerenyahan bawang goreng Palu serta meningkatkan laju oksidasi asam lemak tidak jenuh pada minyak goreng. Mutu fisik-kimia dan organoleptik bawang goreng Palu secara berturut-turut terbaik diperoleh dari penggorengan menggunakan minyak goreng segar, 1, 2 dan 3 kali pemakaian. Pemakaian minyak goreng > 3 kali, asam lemak bebas telah teroksidasi sehingga kurang layak untuk digunakan jika ditinjau dari aspek daya tahan simpan bawang goreng dan kesehatan.Kata kunci: Bawang goreng, sifat fisik-kimia dan organoleptik, frekuensi pemakaian minyak goreng ABSTRACTThe objectives of the study were to determine the physical-chemical and organoleptic properties of Palu fried onions at the varying utilization frequency of cooking oil, i.e. F0 : fresh oil , F1 : 1 time of using , F2 : 2 times of using , F3 : 3 times of using , F4 : 4 times of using , F5 : 5 times of using and F6 : 6 times of using , the each level was replicated three times. The frequency of cooking oil utilization was significantly affected to decreasing color, texture, moisture content, oil content and panelist preference level on the crispness of Palu fried onions as well as increasing oxidation rate of unsaturated fatty acids at the cooking oil. Physical -chemical and organoleptic quality of Palu fried onions were obtained of the best fresh frying utilization cooking oil, 1, 2, and 3 times of using cooking oil , respectively. The use of cooking oil more than 3 times oxidized free fatty acids, so it is less feasible to use based on the life time and health aspects of fried onions.

Tujuan penelitian adalah menentukan  ketinggian tempat tumbuh optimal untuk menghasilkan teh daun kelor yang memiliki karakteristik kimia dan organoleptik teh daun kelor yang baik. Metode penelitian menggunakan Rancangan Acak Lengkap (RAL) pola satu faktor. Penelitian ini diawali dengan survai untuk mendapatkan tempat tumbuh tanaman kelor yang berada di ketinggian 0-150 meter diatas permukaan laut (dpl) di Desa Laswani, 151-300 m dpl di Desa Watunonju, 301-450 m dpl di Desa Bora, >451 m dpl di Desa Sigimpu. Variabel pengamatan yang digunakan yaitu kadar air, keasaman air, antioksidan dan organoleptik. Hasil penelitian menunjukan bahwa ketinggian  300-450 m dpl dihasilkan teh daun kelor yang sesuai karakteristik kimia dan organoleptik dengan keasaman, antioksidan dan organoleptik (warna, rasa) teh daun kelor meningkat dengan bertambahnya ketinggian tempat tumbuh tanaman kelor. Daun kelor yang berada diketinggian 301-450 m dpl berpotensi digunakan sebagai bahan teh daun kelor

Sweet potatoes in general, including vines that have tubers as a producer of carbohydrates, but the quantity and quality is very different from other tubers. Instant noodles are generally made from raw materials of wheat flour, but with the abundance of sweet potatoes found, noodles are made using purple sweet potato flour instead of wheat flour. The purpose of this study was to determine the effect of purple sweet potato flour substitution at various concentrations on the physical, chemical and sensory tests of instant noodles. The study was conducted at the Agroindustry Laboratory, Faculty of Agriculture, University of Tadulako, from June to December 2019. The experiment was arranged using a Completely Randomized Design (CRD) with 1 factor, namely the substitution of instant noodles purple sweet potato flour at a concentration of 0.5,10,15, 20.25 and 30%. The treatment was repeated 3 times so that 21 units of the experiment were obtained. For sensory testing using a Randomized Block Design (RBD) with a panelist of 30 people. Observation parameters consisted loss of solids due to cooking (KPAP), water absorption, water content, ash content and sensory tests. The results of the study of purple sweet potato flour substitution at various concentrations gave the best effect on the concentration of 30% on instant noodles produced based on physical, chemical and sensory properties. With the highest loss of solids due to cooking ( KPAP). The absorption of instant noodles decreases with increasing concentration of purple sweet potato flour. Instant noodle water content tends to be constant in every treatment. Ashes of instant noodles increase with increasing concentration of purple sweet potato flour and the sensory properties of color, texture, aroma, and taste of instant noodles produced increase with increasing concentration of purple sweet potato flour with hedonic scale categories like. Noodles substituted with purple sweet potato flour can be consumed as instant noodles such as those circulating in the market.