Figure 3. Tapping palm sap of (a) Arenga pinnata (b). Cocos nucifera (c) Borassus flabellifer (d) Nypa fruticans and (e) Elaeis guineensis

From

Palm Sap Sources, Characteristics, and Utilization in Indonesia

Teguh Kurniawan, Jayanudin, Indar Kustiningsih, Mochamad Adha Firdaus

Journal of Food and Nutrition Research. 2018, 6(9), 590-596 doi:10.12691/jfnr-6-9-8