POTENSI PRODUKSI NIRA DAN GULA TIGA AKSESI KELAPA GENJAH / Potential Sap and Coconut Sugar Production of Three Accession Dwarf Coconut

Meity Aneke Tulalo, Sukmawati Mawardi

Abstract


The study was conducted to determine the potential of three Dwarf Coconut accessions in the production of sap and coconut sugar. The research was carried out in the Coconut germplasm collections of Indonesian Palm Crop Research Institute in Manado on August to November 2015 using the three Dwarf Coconut accession  ie Waingapu Red Dwarf (WRD), Sweet Green Dwarf (SGD) and Raja Brown Dwarf (RBD). Each accession consisting of six palms, and the  three tapped bunches from each palm were observed. Parameters observed were production of sap/bunches/day, length of tapping/bunches, length of bunches and bunches circumference, pH of sap, brix, and sugar yield. The results showed that coconut WRD, SGD and RBD can produce sap. Potential production of sap varied between accessions. The average production of sap /bunches /day of WRD (1006.57 ml) was higher than that in RBD (627.81 ml) and SGD (740.79 ml). The average length of taping/bunches was 22-23 days, pH 5.5-5,6 and sugar content (brix) 14,47-16,63%. The sap produced by the three coconut accessions can be processed into sugar. The yield of coconut sugar in the form of crystal sugar was 14.25-16.58%.

Keywords: potential, Dwarf, coconut, sap, sugar

 

Abstrak

Penelitian dilakukan untuk mengetahui potensi tiga aksesi koleksi kelapa Genjah dalam produksi nira dan gula kelapa. Penelitian ini dilakukan di kebun koleksi plasma nutfah Balai Penelitian Tanaman Palma di Manado pada bulan Agustus sampai dengan November 2015 menggunakan tiga aksesi kelapa Genjah yaitu Genjah Merah Waingapu (GMW), Genjah Hijau Manis (GHM) dan Genjah Raja (GRA). Masing-masing aksesi diamati enam pohon dan setiap pohon diamati tiga tandan yang disadap. Parameter yang diamati yaitu produksi nira/tandan/hari, lama penyadapan/tandan, panjang tandan dan lingkar tandan yang disadap, pH nira, kadar gula (brix) dan rendemen gula. Hasil penelitian menunjukkan bahwa Kelapa GHM, GMW dan GRA dapat memproduksi nira. Potensi produksi nira beragam antar aksesi. Rata-rata produksi nira/tandan/hari GMW (1006,57 ml) lebih tinggi dari pada GRA (627,81 ml) dan GHM (740,79 ml). Rata-rata lama penyadapan nira/tandan 22-23 hari, pH nira 5,5-5,6 dan kadar gula (brix) 14,47-16,63%. Nira yang dihasilkan tiga aksesi kelapa Genjah tersebut dapat diolah menjadi gula. Nilai rendemen gula kelapa dalam bentuk kristal/semut 14,25-16,58%.

Kata kunci: potensi, kelapa, Genjah, nira, gula


Keywords


potential;dwarf;coconut;sap;sugar

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DOI: http://dx.doi.org/10.21082/littri.v24n2.2018.87-92

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