Figure 3 and Table 1 show the comparison of SAC ([alpha]) between OPT fiber and few different natural fibers (Mesocarp fiber, Arenga
Pinnata, paddy fiber and date palm fiber) that have been tested as sound absorption materials [13, 16, 17, 18].
Kaong trees (Arenga
pinnata) are abundant yet underutilized in Indang, as well as in the neighboring towns of Amadeo, Alfonso and Silang, all in upland Cavite.
El elogio y la arenga
son los generos mas cultivados.
Brown sugar is a natural sweetener derived from the sap of palm trees, like aren (Arenga
pinnata (Wurmb) Merrill), coconut (Cocos nucivera), and siwalan (Borassus flabellifer L).Productivity of sap from the aren (Arenga
pinnata (Wurmb) Merrill) was the highest among the sap of coconut (Cocos nucivera), siwalan (Borassus flabellifer L).
Vidyasagar (2007) has indicated that coconut, date palm, sago palm, and wild date or toddy palm (Phoenix sylvestris), palmyrah (Borassus flabellifer), oil palm (Elaeis guineenis), the talipot palm (Corypha umbraculifer), the sugar palm (Arenga
sacharifera, and the sedang palm (Livistonia cochinchinensis) are potential hosts of RPW in India.