Kandungan Serat Pangan Daun Kolesom (Talinum Triangulare (Jacq.) Willd) pada Budidaya dengan Pemupukan Organik dan Anorganik

Abstract

Water leaf (Talinum triangulare (Jacq.) Willd is one of tropical vegetables which widely grown in Indonesia and has long been used as traditional medicinal plant. Water leaves are sticky presumably due to its pectin content. Pectin is soluble dietary fiber component that performs ability to reduce LDL level in blood. The aim of this research is to study the effect of organic and inorganic fertilization to the level of TDF, IDF, SDF, and pectic substances in water leaf vegetable. This research was conducted in four phases: sample cultivation, sample preparation, chemical analysis, and data analysis. This research used five samples cultivated with organic fertilizers and five samples cultivated with inorganic fertilizers. Samples were dried using drying oven for 17 hours at 60 C. The result shows that TDF, IDF, and SDF level of organic and inorganic water leaf vegetables are significantly different with each p-value of 0,026; 0,022; and 0,215 respectively. Meanwhile, the level of pectic substance is not significantly different for both treatments with p-value of 0,718. Overall result shows that inorganically cultivated samples contain higher dietary fiber and pectic substance than organically fertilized samples. IDF content in water leaf vegetable is higher than its SDF content. It means that dietary fiber in water leaf can help the intestinal health. However, pectic substance contents, which is also part of SDF, are relatively similar in all samples and did not affected by the cultivation treatment. It indicates that water leaf vegetable has the potential to be developed as functional food.