PERBEDAAN AKTIVITAS ANTIOKSIDAN MINUMAN SEGAR DAN MINUMAN INSTAN DARI JAHE (Zingiber officinale var rubrum), PALA (Myristica fragrans Houtt) DAN SERAI (Cymbopogon nardus L)

This study aims to obtain fresh and instant drink formulas from ginger, nutmeg and lemongrass that are accepted by the panelists and have the best antioxidant activity. This study used the RAL method with 6 treatments 3 replications, and fresh drink formulations of FA1: ginger 300mL, nutmeg 100mL, lemongrass 100mL, FA2: ginger 300mL, nutmeg 50mL, lemongrass 150mL, FA3: ginger 300mL, nutmeg 25mL, lemongrass 175 mL and instant drinks FA4: ginger 300mL, nutmeg 100mL, lemongrass 100mL, FA5: ginger 300mL, 50mL of nutmeg, 150mL of lemongrass, FA6: ginger 300mL, nutmeg 25mL, lemongrass 175 mL, then analyzed for total phenol content, antioxidant activity as an antidote to free radicals, then using analysis of variance (ANOVA). The results showed that the highest total phenol content was in the FA3 treatment of 10.81 mgGAE / g, and the lowest was in the FA4 treatment of 0.22 mgGAE / g. The results of the analysis of antioxidant activity as an antidote to DPPH free radicals at a concentration of 100ppm showed that the highest percentage of inhibition was obtained in the FA3 treatment of 52.18% and the lowest was in the FA4 treatment, namely 42.59%. Whereas for the IC50 value, the highest value was found in the FA3 treatment with a concentration of 56.8 ppm, and the lowest was in the FA4 treatment with a concentration of 116.05 ppm. The best treatment based on the sensory test of instant drinks, the most preferred by the panelists was in the FA5 treatment with a value of 4.35, and the lowest was in the FA6 treatment with a value of 4. The results of this study can be concluded that the fresh drinks that have the best total phenols are found in the FA3 treatment, where as for instant drinks that have the best total phenols in the FA5 treatment, and for fresh drinks and instant drinks that have the best antioxidant activity are in the FA3 treatment, for pelyan persistic preferences testing FA5.Keywords: Ginger, Nutmeg, Lemongrass, Total Phenol, Antioxidant.

PENGARUH SUHU PASTEURISASI TERHADAP PROFIL DAN AKTIVITAS ANTIOKSIDAN PUREE BUAH NAGA MERAH

Antioksidan dapat menghambat stres oksidatif. Buah naga merah (Hylocereus polyrhizus) merupakan salah satu sumber pangan nabati yang mengandung antioksidan flavonoid. Pengolahan buah naga merah menjadi puree dapat mempertahankan nilai gizi dan cita rasa buah. Tujuan dalam penelitian ini untuk mengidentifikasi profil antioksidan dan aktivitas antioksidan puree buah naga merah (Hylocereus polyrhizus) yang dihasilkan melalui proses pasteurisasi pada suhu 65oC, 75oC, 85oC, dan 95oC. Metode yang digunakan dalam penelitian ini yaitu metode eksperimen. Parameter yang diukur yaitu analisis senyawa bioaktif yang meliputi total fenol, flavonoid, antosianin, aktivitas antioksidan dengan metode DPPH dan FRAP, kadar air dan kadar serat kasar. Hasil yang diperoleh dalam penelitian ini yaitu total fenol pada suhu 65oC 1,15 mg GAE/g, 75oC 0,94 mg GAE/g, 85oC 0,91 mg GAE/g, 95oC 0,84 mg GAE/g, kadar flavonoid pada perlakuan 65oC 0,71 mg QE/g, 75oC 0,70 mg QE/g, 85oC 0,70 mg QE/g, 95oC 0,56 mg QE/g, kadar antosianin pada suhu 65oC 51,18%, 75oC 38,13%, 85oC 37,96%, 95oC 29,55%, aktivitas antioksidan metode DPPH pada suhu 65oC 4,18 mg/ml, 75oC 107,74 mg/ml, 85oC 109,22 mg/ml, 95oC 112,56 mg/ml, aktivitas antioksidan metode FRAP pada suhu 65oC 12,75 mg, 75oC 12,45 mg, 85oC 11,24 mg, 95oC 9,90 mg, kadar air pada suhu 65oC 88,66%, 75oC 89,13%, 85oC 89,06%, 95oC 83,8% dan kadar serat kasar pada suhu 65oC 7,7%, 75oC 7,06%, 85oC 7,39%, 95oC 6,52%. Kesimpulan dari penelitian ini adalah perlakuan suhu pasteurisasi yang semakin tinggi dapat menurunkan kandungan senyawa bioaktif.

PENGEMBANGAN PANGAN FUNGSIONAL BUBUR INSTAN RENDAH INDEKS GLIKEMIK BERBASIS PANGAN LOKAL

The purpose of this study was to analyze the nutritional content and glycemic index value of local food-based instant porridge products. The research method used was experimental research with the determination of the glycemic index using a one-shot case study design on a sample of white rats (Rattus novergicus). The results obtained in this study are the glycemic index value of instant porridge which is included in the low GI category, namely goroho plantain 31,88, baruk sago 39,43, and "mulubebe" plantain instant porridge 43,35. Meanwhile, instant porridge that has medium GI is mocaf 59,34. The results of the calculation of the glycemic load of instant porridge which has a low glycemic load are goroho plantain 8.17, while those which have a moderate glycemic load are "mulubebe" plantain 11.88, baruk sago 12.02 and mocaf 17.16 . So that the use of carbohydrate sources from different local foods, namely goroho plantain flour, “mulubebe” plantain flour, baruk sago flour, mocaf flour in instant porridge affects the glycemic index value of instant porridge. Keywords: Instand porridge, glycemic index, plantain, mocaf, sago.

ANALISIS MUTU DAN EKONOMI PENERAPAN PENGEMASAN VAKUM BAWANG DAUN POTONGAN (Allium fistulosum L.) SELAMA PENYIMPANAN

This study aimed to analyze leeks packaging and without packaging during storage, and to analyze economical packaging and knowing the number of breakeven points obtained. This study uses an experimental method, and descriptive analysis of data consisting of 2 treatments and 3 replications, namely scallions which are vacuum packed, and leeks without packaging that are stored in a refrigerator with a temperature of 5-10˚C.From the results of research on quality analysis of changes in weight, color and texture showed that the vacuum packaged onions at a storage temperature of 5˚C – 10˚C gave the best results over a 14-day shelf life compared to unpacked leeks which only lasted for a shelf life of 6 days. Weight reduction occurred in the treatment without packaging by 44%. The total fixed cost is Rp.219,625 /Year, the total variable cost is Rp.5,519 per package, with a yearly production of 24,300 packs /Year, to obtain the selling price of vacuum packaging leeks of Rp.6,080 per package, and the break-even analysis results in get is 392 packaging /Year.Keywords : Leeks, Vacuum Packaging, Storage Time

KAJIAN MUTU LABU SIAM (Sechium edule) TEROLAH MINIMAL YANG DIKEMAS VAKUM SELAMA PENYIMPANAN

This study aims to analyze the deterioration of the quality of the chayote during storage using several packaging methods. The research method was carried out experimentally and the data were processed descriptively which consisted of three treatments, namely: vacuum packed, without vacuum, and open. Each treatment was carried out 3 (three) times with each weight of 250 grams. Research shows that minimally processed chayote which is vacuum packed and stored at a temperature range of 5oC - 9.6oC can last for 12 days, experiencing a weight loss of 0.90%. The color changed from Faded Yellow to Gray Yellow. The texture becomes soft with a hardness value of 8.80 N. The water content changes from 91.98% to 94.70%.In conclusion, the storage life of vacuum packed minimally processed chayote could be prolonged up to 12 days at 5oC – 9,6oC, grey-yellow in color, texture softened, and weight loss as much as 0.90%. Keywords: Chayote, minimally processed, vacuum packed.

PEMANFAATAN TEPUNG KOMPOSIT PISANG GOROHO (Musa acuminate) DAN UBI JALAR KUNING (Ipomoea batatas. L) SEBAGAI BAHAN BAKU PEMBUATAN CRUST PIE

The objectives of this study were to analyze the composition and sensory quality of the crust pie made of composite flour of goroho and yellow sweet potato. This study was conducted in a completely randomized design with 4 different composition ratio of goroho plantain flour to yellow sweet potato flour, i.e., A (80% : 20%), B (70%: 30%), C (60%: 40%), and D (50% : 50%). The results of the study showed that the chemical composition of pie crust were in a range of 2.87% - 4.74% for moisture content, 2.66% - 2.72% for ash content, 32.10% - 32.95% for fat content, 5.90% - 6.06% for protein content, 3.76% - 4.77% for crude fiber, and 50.04% - 55.50% for carbohydrates content. The pie crust made from composite flour 50% goroho : 50% yellow sweet potato was the most preferred by panelists in terms of color, aroma, taste and texture with a value of 3.89 (like).Keywords: pie crust, composite flour, goroho plantain, sweet potato

PEMANFAATAN ASAP CAIR ARANG TEMPURUNG SEBAGAI BAHAN PENGAWET PADA BAKSO IKAN TUNA

ABSTRACTThe research objective was to determine the effect of coconut shell charcoal liquid smoke on the shelf-life of fish meatballs. The design used was Factorial Completely Randomized Design, which consisted of 2 factors: A treatment of liquid smoke concentration 0%, 5%, 10%, and factor B treatment of immersion 30 and 45 minutes long, with three repetitions. The results showed that with the concentration of liquid smoke 0% tuna meatballs can last only one day at room temperature with the results of already whitish slimy appearance, fishy flavour, and the texture is still chewy. Fish meatballs with 10% liquid smoke concentration combine with 45 minutes soaking time can last up to 5 days at room temperature with the results of already slimy, brownish, flavorful appearance typical of fish with a chewy texture.Keywords: Liquid smoke, tuna fish meatballs, shelf-life

PENGARUH PENAMBAHAN TEPUNG TAPIOKA DALAM PEMBUATAN BISKUIT BERBAHAN BAKU TEPUNG UBI BANGGAI (Dioscorea alata L.)

ABSTRACTThe purpose of this study was to determine the proportion of tapioca flour that needs to be added in the manufacture of biscuits made from Banggai yam flour, based on sensory and chemical properties. This research used a Completely Randomized Design (CRD) with the addition of tapioca flour at four levels as treatments, i.e. A: 0%; B: 5%; C: 10%; D: 15%, which was triplicated. The parameters observed were organoleptic testing for the degree of preference for taste, aroma, color and texture. The chemical composition of the biscuits was analyzed and the energy value was calculated. Overall, the level of preference given by the panelists on the Banggai yam biscuits without the addition of tapioca flour was 3.68 (like) out of 5 as the highest value. It can be concluded that tapioca flour does not need to be added in making Banggai yam biscuits. Banggai yam biscuits have a hardness of 1.93 mm / g / sec. and energy value of 422.62 kkal, with the composition of 3.98% moisture, 8.13% protein, 11.10% fat, 3.68% ash, 72.55% carbohydrates, and 0.56%. crude fiber. Keywords: Banggai yam, tapioca flour, biscuits

SIFAT ORGANOLEPTIK PERMEN JELLY MANGGA KUINI (Mangifera odorata Griff) DENGAN VARIASI KONSENTRASI SIRUP GLUKOSA DAN GELATIN

ABSTRACTThe aims of this reaserch are to determine the right combination of glucose syrup and gelatin, to analyze the physical and chemical components and to evaluate the preference level of the panelists in kuini mango jelly candy. This research has used factorials RAL method with 2 factors, which A factor is glucose syrup concentration and B factor is gelatin concentration. The result of the research found that A3B3 samples that contain 50% of glucose syrup and 25% of gelatin were the most preferred sample by panelist. In conclusion, mostly panelists prefer the sweetest and the hardest sample. Keywords: kuini mango, glucose syrup, gelatine, jelly candy

EVALUASI NILAI GIZI TEPUNG PISANG GOROHO (Musa acuminate, sp) TERMODIFIKASI

ABSTRACTThe purpose of this research is to identify the chemical properties of goroho plantain flour produced through the process of modification of cold-boiled, cold-steamed and cold-roasted. The method used in this study is the experimental method. The parameters measured were starch content, amylose content, resistant starch content and in vitro digestibility of starch on modified goroho plantain flour. The results obtained in this study were an increase in starch content in cold-boiled treatment 79.29%, cold-steamed 76.83%, cold-roasted 72.86%, amylose content in cold-boiled treatment 25.54%, cold-boiled 24.37%, cold-roasted 21.40 %, resistant starch content of cold-boiled treatment 28.87%, cold-steamed 28.18%, cold-roasted 27.21%, and in vitro digestibility cold-boiled treatment 46.17%, cold-boiled 55.66%, cold-roasted 66.12%. The modification of goroho plantain flour with boiled, steamed and roasted treatments can increase the levels of resistant starch in goroho plantain flour. Keywords: goroho banana flour, resistant starch, goroho banana