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The aim of the paper is to describe the impacts of altitude and season to volume, Brix contents, and chemical composition of Arenga pinnata sap (Aren sap) from North Sulawesi Province, Indonesia. The Aren sap was collected from Aren population growing in different altitudes. The samples of Aren population growing at altitude 0-100 m asl were collected from North Minahasa district, the samples of Aren population growing at altitude 100-500 m asl were collected from Minahasa District, and the samples of Aren population growing at altitude from altitude >500 m asl were collected from Tomohon District. In every study site, Aren sap was collected two times in a year, once during dry season and the other during rainy season. The result of the study shows that altitude provides significant impacts to sap production. There is a significant difference on brix content among Aren sap which was tapped from different altitudes and seasons. Seasons ultimately contribute to protein content. There is no significant difference on the phosphorus content between sap which was harvested from different altitudes and seasons. Seasons and altitude provide a significant impact on Magnesium and Calcium content in sap. Altitudes significantly affect Potassium content.

Impact of Altitude and Seasons to Volume, Brix Content, and Chemical Composition of Aren Sap in North Sulawesi