The highest comsumption white rice can increase risk of diabetes deseases. The aimed of this study was to determine nutrient as carbohydrate, ptotein, and fat levels with various types of rice with different cooking process. All of type rice conducted with different cooking process using steamed and rice cooker. Analysis of carbohydrates using UV-Vis spectrophotometry, analysis of fats using the soxhletation method and protein levels using Kjeldhal method. The result of this study that the highest carbohydrate levels is found in raw white rice at 126.124 mg/kg, while after cooking process that the highest carbohydrate levels was found in white rice used ricecooker at 103.400 mg/kg. The highest protein levels before processed was found in raw black rice at 11.16%, while the lowest was found in white rice at 8.71%, after cooking processed the highest protein levels found in black rice cooker at 5.12 %, while the lowest was found in steamed black rice at 3.89%. The highest fat levels before processed was found in black rice of 0.214%, while after cooking processed, the highest fat levels was found in steamed white rice at 0.076%. The conclusion of this study that there are the effects of cooking processed on nutrient.

Antioxidants guard against reactive oxygen free radicals. Antioxidants neutralize free radicals by adding electrons to them, preventing bodily harm. African leaves (Vernonia amygdalina Delile.) contain an antioxidant. African leaves are the leaves of a thousand diseases because they have pharmacological effects on various diseases. African leaves contain steroids/triterpenoids, glycosides, saponins, tannins, and flavonoids. This study examined Vernonia amygdalina Delile. leaf combination ethanol extract antioxidant properties. The extracts were prepared with the reflux method using methanol, butanol, isopropanol, ethyl acetate, chloroform, and n-hexane. Antioxidant activities were determined with DPPH, ABTS, FRAP, CUPRAC, O-Phenanthroline, Hydroxyl radical scavenging, total phenolics, and total flavonoids method. The data were analyzed using the Principle Component Analysis (PCA) multivariate exploration technique, which was analyzed using the Minitab software. The highest antioxidant activity was found in African leaf reflux extract with methanol solvent by DPPH method (43.8968 ± 0.021), followed by ABTS (73.6223 ± 0.091), FRAP (89.2924 ± 0.087), CUPRAC (13.4745 ± 0.042), O-Phenantroline (99.0977 ± 0.30), and Hydroxyl radical scavenging (33.5703 ± 0.071). The findings show that Vernonia amygdalina Delile. extract exhibit antioxidant activity. According to the findings, Vernonia amygdalina Delile leaf extract with methanol solvent provided the maximum antioxidant activity.