1. a Philippine Center for Postharvest Development and Mechanization (PhilMech) , CLSU Compound 3120, Science City of Muñoz , Nueva Ecija, Philippines
2. b Department of International Agricultural Development , Faculty of International Agricultural Studies, Tokyo University of Agriculture, 1-1-1 Sakuragaoka , Setagaya-ku, 156-8502, 156-8502 Tokyo, Japan