Judul: Pengaruh Saponifikasi pada Pemurnian Mono-Diasilgliserol Hasil Reaksi Gliserol dan PFAD
Abstrak: Mono-diacylglycerol is produced by esterification reaction between glycerol and PFAD. Esterification reaction produce a mixture of MDAG, free fatty acid (FFA), and triacylglycerol (TAG). FFA and TAG can decrease performance of MDAG as emulsifier, so purification is needed to decrease the number of ALB and TAG. The purpose of this research was to get product of pure MDAG emulsifier that have the best quality and highest yield. Purification was doing by saponification process and then extracted by hexane. That method used saponification with NaOH 1 N at various volume addition (Without NaOH, 1ml, 2 ml, 3 ml, and 4 mL) and continued by product characterization. The result showed that the saponification reaction affect MDAG purity. So, the best product was without 1ml NaOH 1N treatment. That condition produced rendemenofs 31.54% with composition of MAG 26.80%, DAG 30.46%, and TAG-ALB 42.74%, FFA 8.88%, melting point 53oC, pH 5, emulsion stability 84%, dry texture, no odor, and white color.
Keyword: Bogor Agricultural University (IPB), saponification, free fatty acid, MDAG

Judul: Pengaruh Saponifikasi pada Pemurnian Mono-Diasilgliserol Hasil Reaksi Gliserol dan PFAD
Abstrak: Mono-diacylglycerol is produced by esterification reaction between glycerol and PFAD. Esterification reaction produce a mixture of MDAG, free fatty acid (FFA), and triacylglycerol (TAG). FFA and TAG can decrease performance of MDAG as emulsifier, so purification is needed to decrease the number of ALB and TAG. The purpose of this research was to get product of pure MDAG emulsifier that have the best quality and highest yield. Purification was doing by saponification process and then extracted by hexane. That method used saponification with NaOH 1 N at various volume addition (Without NaOH, 1ml, 2 ml, 3 ml, and 4 mL) and continued by product characterization. The result showed that the saponification reaction affect MDAG purity. So, the best product was without 1ml NaOH 1N treatment. That condition produced rendemenofs 31.54% with composition of MAG 26.80%, DAG 30.46%, and TAG-ALB 42.74%, FFA 8.88%, melting point 53oC, pH 5, emulsion stability 84%, dry texture, no odor, and white color.
Keyword: Bogor Agricultural University (IPB), saponification., free fatty acid, MDAG

Judul: Etno-ornitologi Burung Kancilan Flores (Pachycephala nudigula nudigula Hartert 1897) pada Masyarakat Lio di Taman Nasional Kelimutu
Abstrak: Bare-throathed whistler is one of several wild birds in Kelimutu National Park (TNKL) that is believed to have correlation with Lio Community‟s belief. The estimation of Bare-throated whistler‟s population in Kelimutu National Park was about 186.41-1668.07 individual by the density about 0.0389-0.3481 ind/ha with the sex ratio 6.2:1 that spreaded on area with height of 1100 – 1600 masl. The characteristic of Bare-throated whistler‟s habitat is a natural forest with various canopy level, high plant species diversity and high density. The habitat characteristics related to the availability of food in the form of insects, cover, safety and a nesting site. Generally the most of Lio community knew the existence of Bare-throated whistler directly or from their parents‟ stories. The perceptions of Lio Community to the Bare-throated whistler‟s existence is generally support the conservation efforts. The perceptions construct the Lio Community‟s atitude that tend to be conservative to the existence of Bare-throated whistler. The attitude shown by their behavior that not cathing the Bare-throated whistler from the TNKL‟s area or the outside. The attitude have an important role to the existence of Bare-throated whistler in Kelimutu National Park‟s area.
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