Jongi plant (Dillenia serrata Thunb) is one of the plant that found Poso District. The charactheristics of this fruit is mainly on the refreshing sour taste and attractive color which is yellow. This study aims to determine the levels of vitamin C and calcium in this fruit based on the level of maturity. The fruit of jongi used as a sample was categorized into there type of maturity namely mature, ripe and over ripe. The method used for vitamin C analysis was iodimetry and for calcium analysis using spectrophotometry (λ: 422,7 nm). From the results of analysis, it was obtained that the levels of vitamin C in fruit jongi successively were 81.84, 114.40, and 70.40 mg/100 g, while the calcium levels obtained in the fruits were 5.91, 5.65, and 6.46 mg/100 g. The data above showed that the maximum vitamin C content in jongi fruit when the fruit was in ripe type, while the highest calcium content in jongi fruit was when the fruit in over ripe type.

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Analysis of Vitamin C and Calcium in Jongi Fruits (Dillenia serrata Thunb) Based on Their Maturity Level

Wildlife is one of the biological natural resources that can be use it sustainably and sustainably, because wildlife is a natural resource renewable or renewable biological (renewable resources). This study aims to determine public perception of the exixtence of Macaca hecki and Macaca tonkeana in Protected Forest and Pangi Binangga Nature Reserve of Central Sulawesi. This research was carried out along the Palu-Parigi trans road which is in the Protected Forest and Pangi Binangga Nature Reserve, Central Sulawesi Province in April - June 2021. The results showed that presence of endemic Sulawesi macaque ( M. hecki and M. tonkeana ) along the Palu-Parigi trans road which is in the Protected Forest and Pangi Binangga Nature Reserve area causes various problems such as people experiencing unpleasant events with the presence of macaque, stolen goods, enter into community plantations, and damage various types of agricultural crops (avocado, cloves, cocoa, and several other fruits).

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Public Perception on the Existence of Macaca hecki and Macaca tonkeana in Protected Forest and Pangi Binangga Nature Reserve of Central Sulawesi

Few studies have explicitly determine the habitat of monyet boti ( Macaca tonkeana ) in nature reserve areas in Central Sulawesi. The outcome of this research is to give basic information concerning the conservation and captivation of Macaca tonkeana as an endemic and endangered animal in Sulawesi. Here in, we reported upon the results of the habitat of Macaca tonkeana in protection forest area, Sangginora village, Poso Pesisir Selatan district, Poso, Central Sulawesi.The study was conducted on March through May 2014. Five sample plots were made by the size of 20 x 20 m. Ploting was done by purposive sampling method. Hence vegetation date were analysed to determine the density, frequency, dominant, and Importance Value Index. The results showed that there were 40 plant species comprising 25 families in this area. Four plants species were used by Macaca tonkeana as food sources. The highest important value index (IVI) was achieved by Ficus sp (45,43%), while the lowest Important value index was achieved by Melochia umbellate and Rapanea spec (6,75%). Nunu ( Ficus sp ) is an important source of food, especially the fruit, parts of the plant are eaten fruit and leaves. Further more, the abiotic condition of the habitat including; temperature (24oC-27oC) and relative humidity (69%-72%) and located at 747 m asl. Keywords: Habitat, Macaca tonkeana , Protection forest, Important Value Index.

http://jurnal.untad.ac.id/jurnal/index.php/WartaRimba/article/download/3611/2614

Elhayat Labiro

Papers

STUDI HABITAT MONYET BOTI (Macaca tonkeana) DI HUTAN LINDUNG DESA SANGGINORA KECAMATAN POSO PESISIR SELATAN KABUPATEN POSO