Formulasi Krim Antioksidan Berbahan Virgin Coconut Oil (VCO) dan Red Palm Oil (Rpo) dengan Variasi Konsentrasi Trietanolamin

Telah dilakukan penelitian pembuatan dan karakterisasi krim antioksidan berbahan baku VCO dan RPO dengan variasi konsentrasi trietanolamin. Tujuan dari penelitian ini membuat dan melakukan karakterisasi sifat fisik mempelajari pengaruh basa TEA terhadap sifat-sifat krim, dan mengetahui aktivitas antioksidan krim.Pembuatan krim dilakukan dengan memvariasikan konsentrasi trietanolamin. Krim yang telah dibuat dikarakterisasi termasuk uji pH, homogenitas, tipe emulsi, ukuran droplet, pemisahan fasa dengan uji sentrifugasi dan uji aktivitas antioksidan dengan metode DPPH. Berdasarkan kestabilan emulsi dan ukuran droplet maka konsentrasi TEA > 1% menyebakan emulsi lebih stabil. Konsentrasi TEA optimum untuk menangkal radikal bebas adalah 1,25

Exploiting A Benefit Of Coconut Milk Skim In Coconut Oil Process As Nata De Coco Substrate = Peningkatan Nilai Tambah Krim Santan Kelapa Limbah Pembuatan Minyak Kelapa sebagai Substrat Nata de Coco

ABSTRACT A research to know influence of mixing concentration of coconut water and sucrose concentration to coconut milk skim as nata de coco substrate has been conducted. The variation was taken from mixing coconut water (0%, 25%, 35% and 50% and 100% as control) and the sucrose concentration (0.5%, 1%, 1.5% and 2%). Coconut milk skim boiled before used as substrat, yielded a coconut protein (blondo). The result of research showed that coconut milk skim can be used as nata de coco substrate with mixing coconut water and sucrose addition, mixing 50 % concentration coconut water representing optimum concentration. The content of crude fibre nata was yielded by higher concentration of sucrose, while mixing concentration coconut water do not influence crude fibre content. Keyword: Coconut milk skim, substrate, nata de coc

THERMAL EFFECT OF COCONUT CREAMS ABILITY TO ADSORB CALCIUM(II)

Study of thermal effect of coconut cream's ability to adsorb Ca (II) has been done at various temperatures of 49 oC,  59 oC and 80 oC. The adsorption study was performed to check capacity, energy and rate of adsorption by varying the number of initial concentration of CaCl2 bounded on coconut protein. This research was also done to determine number of Ca (II) in the coconut protein using the salt addition and elicits reaction methods. The result showed that adsorption ability tends to increased with the increase of temperature). Coconut cream heated at 59 oC adsorb Ca(II) with the highest adsorption capacity of 3.98 mg/g and K = 3.48x104  mol-1. The salt addition method on the coconut cream gives more Ca (II) than elicit reaction method. The first method gives 0.01137 mol/L and the second was 0.02845 mol/L. Based on the energy of adsorption, cream without heating had 20.59 kJ/mol as a physical adsorption and heating effect at temperatures 49 oC, 59 oC and 80 oC had 24.95; 28.87 and 24.87 kJ/mol respectively as a chemical adsoprtion with the rate of adsorptions of 0,0054;  0,0510 dan  0,3. 10-4 minute-1, respectively.   Keywords: coconut cream, adsorption, thermal effect

EXPLOITING A BENEFIT OF COCONUT MILK SKIM IN COCONUT OIL PROCESS AS NATA DE COCO SUBSTRATE

A research to know influence of mixing concentration of coconut water and sucrose concentration to coconut milk skim as nata de coco substrate has been conducted. The variation was taken from mixing coconut water (0%, 25%, 35% and 50% and 100% as control) and the sucrose concentration (0.5%, 1%, 1.5% and 2%). Coconut milk skim boiled before used as substrat, yielded a coconut protein (blondo). The result of research showed that coconut milk skim can be used as nata de coco substrate with mixing coconut water and sucrose addition, mixing 50 % concentration coconut water representing optimum concentration. The content of crude fibre nata was yielded by higher concentration of sucrose, while mixing concentration coconut water do not influence crude fibre content.   Keyword: Coconut milk skim, substrate, nata de coc

Studi In Vivo Peranan Senyawa Fenolik Da/am Aktivitas Antihiperko/estero/ Virgin Coconut Oil

ABSTRACT The role of phenolic compounds on antihypercholeserol activity of Virgin Coconut Oil (VCO) has been investigated. The in vivo studies ware carried out by treatment of two groups of Wistar white mouse (Ratus norvegicus) using high phenolic VCO and low phenolic VCO respectively, followed by analysis of lipid profile in blood and liverserum of the mouse. In addition a group of hypercholesterol mouse was treated with low phenolic VCO and the blood serum lipid profile was compared with untreated hypercholesterol mouse. The results show that phenolic compound play an important role on antihypercholesterol of VCO. Group ()f mouse treated with high phenolic VCO have better lipid profile (blood serum: total cholesterol: 70 mg/dL, triglyceride: 76 mg/dL, HOL: 20 mg/dL, LOL: 35 mg/dLliver serum: total cholesterol:7 mg/dL, triglyceride: 19 mg/dL) compared with the group treated with low phenolic VCO (blood serum: total cholesterol: 82 mg/dL, triglyceride: 100 mg/dL, HOL: 21 mg/dL, LOL: 41 mg/dLliver serum: total cholesterol: 9 mg/dL, triglyceride: 34 mg/dL). Hypercholesterol mouse tests shown that low phenolic VCO treatment result in decreasing of blood serum cholesterol level by 52.10% which was not significantly different compared to untreated mouses (decreasing of blood serum cholesterol level by 48.61%). Keywords: antihypercholesterol, phenolic compound, VCO, in viv

IN VIVO STUDY OF PHENOLIC COMPOUNDS ROLE ON ANTIHYPERCHOLESTEROL ACTIVITY OF VIRGIN COCONUT OIL Studi In Vivo Peranan Senyawa Fenolik Da/am Aktivitas Antihiperko/estero/ Virgin Coconut Oil

ABSTRACT The role of phenolic compounds on antihypercholeserol activity of Virgin Coconut Oil (VCO) has been investigated. The in vivo studies ware carried out by treatment of two groups of Wistar white mouse (Ratus norvegicus) using high phenolic VCO and low phenolic VCO respectively, followed by analysis of lipid profile in blood and liverserum of the mouse. In addition a group of hypercholesterol mouse was treated with low phenolic VCO and the blood serum lipid profile was compared with untreated hypercholesterol mouse. The results show that phenolic compound play an important role on antihypercholesterol of VCO. Group ()f mouse treated with high phenolic VCO have better lipid profile (blood serum: total cholesterol: 70 mg/dL, triglyceride: 76 mg/dL, HOL: 20 mg/dL, LOL: 35 mg/dLliver serum: total cholesterol:7 mg/dL, triglyceride: 19 mg/dL) compared with the group treated with low phenolic VCO (blood serum: total cholesterol: 82 mg/dL, triglyceride: 100 mg/dL, HOL: 21 mg/dL, LOL: 41 mg/dLliver serum: total cholesterol: 9 mg/dL, triglyceride: 34 mg/dL). Hypercholesterol mouse tests shown that low phenolic VCO treatment result in decreasing of blood serum cholesterol level by 52.10% which was not significantly different compared to untreated mouses (decreasing of blood serum cholesterol level by 48.61%). Keywords: antihypercholesterol, phenolic compound, VCO, in viv

PEMBUATAN BAHAN UNTUK MENGHILANGKAN SENYAWA YANG BERSIFAT KARSINOGENIK PADA MINYAK GORENG

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PENGGUNAAN n-HEKSANA SEBAGAI PELARUT UNTUK MEMISAHKAN MINYAK SAWIT DARI SLUDGE HEAVY PHASE MENGGUNAKAN METODE EKSTRAKSI CAIR-CAIR

The using of n-hexane as a solvent to separate palm oil from sludge heavy phase by liquid-liquid extraction method has been done. This research was conducted under a variation of extraction time (5, 10 and 15 min.), volume ratio of n-hexane : sludge (1, 2, 3 and 4) and the aging time after extraction (10, 20, 30 and 40 min.) to get an optimum oil extracted. The conductivity of the sludge before and after extraction process was determined to show that demulsification of sludge did not occur. The palm oil was then characterized by means chemical and physical properties. The results showed that the optimum of extraction time was 5 min., volume ratio of n-hexane : sludge was 2, aging time was 10 min., and oil extracted was 0,18 wt.%. The conductivity of the sludge before and after the extraction process did not significantly change was 6,4 μs/cm. The free fatty acid content in the palm oil was 0,29% with palmitic acid as a dominant component. The water content, peroxide value, viscosity, density and colour were 0%, 5.42 mgeq/kg, 62.10 cP, 0.911 g/mL and reddish orange. Based on SNI 01-2901-2006, the properties of the palm oil were corresponding to the edible oil

PEMECAHAN EMULSI DENGAN METODE PENGGARAMAN PADA SLUDGE HEAVY PHASE

The research of emulsion breaking with salting method in sludge heavy phase has been done. The purpose of this study was to determine the effect of NaCl toward the emulsion stability, determining the critical micelle concentration (CMC) point, and optimizing the amount of NaCl (weight % b/b) to produce the optimum of palm oil that can be separated. Separation of the oil contained in the sludge heavy phase was conducted by extraction method using n�hexane as a solvent. The electrical conductivity (DHL) of the sludge was measured to determined the CMC point. The chemical and physical properties of the oil were analyzed including free fatty acid (FFA), water content, peroxide value, spesific weight, viscosity, and colour. The fatty acid composition of the oil was analyzed using GC�MS method. The results showed that the NaCl could break the emulsion. The CMC point was achieved at levels of 10 wt.% NaCl. The optimum NaCl ammount was 10 wt.% with oil recovery of 0.21 wt.%. The palm oil showed the FFA value of 0.29%, the water content was not detected, and specific weight of 0.91 g/mL (followed the SNI 01�2901�2006). The oil has a yellowish color. The peroxide value and viscosity was 5.43 meq/g and 62.1 centipoise (did not followed the SNI 01�2901�2006). The results of GC�MS analysis showed that the composition of free fatty acid in palm oil was palmitic acid, stearic acid, and oleic acid of 31.88%, 30.14%, and 23.91%, respectivelly