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Rice is the main product obtained from grain produced by the rice plant (Oryza sativa) whose entire layer has been peeled off and the bran layer has been separated in the form of head rice, whole rice grains, broken rice, and groats. There are several types of pigmented rice such as brown rice, black rice and black glutinous rice. These kinds of rice have not been utilized optimally so that a processing process is needed to increase the economic value of the colored rice. One of the processing is made as flour so that it is durable and easy to distribute and flour can be used as a food processing material that is practical, easy and durable. One of the processed rice is rice flour. Colored rice flour is the result of processing brown rice, black rice and black glutinous rice by milling or flouring. This study aims to determine the optimal temperature in the manufacture of colored rice flour in order to obtain colored rice flour which has high antioxidant activity and high anthocyanins. The result of flouring is in the form of very fine grains. Flour has a low water content so it is more durable and long lasting. In order to reduce the moisture content, drying is carried out. The study used a completely randomized design (RAL) consisting of 2 factors. The first factor was the type of colored rice, while the second factor was the drying temperature of rice flour. The optimal treatment results were a combination of black glutinous rice flour treatment and a drying temperature of 45°C for 60 minutes, the following results were obtained: water content 7.44%, antioxidant activity by DPPH method 69.89%, antioxidant activity by FRAP method 81.35%, yield 25.29%, total phenol 175.85 mg/kg, and anthocyanin levels 327.10 ppm. Changes in temperature during the drying process of colored rice will affect the characteristics of the colored rice.

Kombucha tea is a traditional beverages product manufactured from fermented tea and sugar solutions. Using Acetobacter xylinum sa starter. Kombucha tea has a refreshing sour taste, but the distinctives aroma make kombucha tea less attractives to consumers. Red roses (Rosa damascene) are a source of anthocyanin pigments that have not been widely used.  In addition, to increase the economic value of roses.  Based on research that has been done, red roses contain antioxidants in the form of purplish red anthocyanins.  The purpose of this study was to determine the effect of the type of sugar and the concentration of rose extract on the characteristics of rose kombucha produced.  This study used Completely Randomized Design (CRD). The factors used were the concentration of rose tea (1g/250ml, 2g/250ml, 3g/250ml) and variations in the type of sugar (palm, sand, fine).  The best chemical and organoleptic analysis based on the highest antioxidant activity was the addition of palm sugar and the concentration of the addition of rose tea 1g/250ml with a total phenolic of 10.17mg GAE/L, total dissolved solids (TPT) 11.10%, acidity (pH) 3.86, antioxidant activity 48.28%, vitamin C 11.41%, 13.63% for total sugar, sour taste score 3.06, rose flavor 2.15 and 1.10 for overall preference the addition of palm sugar and the concentration of the addition of rose tea 1g/250ml. Kombucha made from rose extract can be an alternative functional food.

Kue pukis merupakan kue tradisional Indonesia. Tepung tiwul memiliki potensi untuk dijadikan bahan dalam pembuatan kue yang aman dikonsumsi penderita celiac dan autisme. Bahan baku lokal seperti tepung kacang hijau dan wortel yang kaya akan serat dapat memenuhi kebutuhan serat dalam tubuh. Tujuan dari penelitian ini untuk menentukan karakteristik fisikokimia dan sensori pukis bebas gluten dari tepung tiwul dan tepung kacang hijau dengan penambahan puree wortel serta menentukan formulasi pukis bebas gluten yang paling disukai konsumen. Rancanganlpercobaan menggunakan Rancangan Acak Lengkap (RAL) dengan faktor penambahan puree wortel serta  perbandingan tepung tiwul dan tepung kacang hijau. Hasil penelitian formulasi pukis bebas gluten terbaik berdasarkan kandungan tinggi serat pangan adalah formulasi puree wortel 25% : tepung tiwul 18,75% : tepung kacang hijau 56,25% dengan kadar air 26,75%, kadar abu 1,20%, kadar lemak 15,37%, kadar protein 10,45%, kadar serat pangan 7,94%, kadar karbohidrat by different 46,23% dan kadar β-karoten 10,88 µg/g. Nilai sensoris perlakuan ini yaitu warna 3,33 (warna semakin coklat), flavor tepung tiwul 2,53 (flavor tepung tiwul semakin terasa), flavor tepung kacang hijau 3,10 (flavor tepung kacang hijau semakin terasa), flavor wortel 2,70 (flavor wortel semakin terasa), tekstur empuk 3,63 (tekstur semakin empuk), dan kesukaan keseluruhan 3,73 (pukis disukai secara keseluruhan). Pukis dengan bahan baku tiwul, kacang hijau dan wortel dapat menjadi alternatif makanan tradisional yang memiliki tinggi serat dan beta karoten.