Pengaruh pelarut NADES basis betain terhadap efektivitas ekstraksi resveratrol menggunakan Ultrasonic Assisted Extraction (UAE) dari biji melinjo (gnetum gnemon l.) hasil iradiasi = The influence of betaine-based NADES to the effectiveness of resveratrol extraction with Ultrasonic Assisted Extraction (UAE) from irradiated melinjo (gnetum gnemon l.) seeds