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Jurnal Teknologi Dan Industri Pangan

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Published by Institut Pertanian Bogor

ISSN : 19797788 EISSN : 2087751X DOI : 10.6066

Core Subject : Agriculture, Engineering,

Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

Arjuna Subject : -

Articles 635 Documents

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FORMULATION AND PROCESS OPTIMIZATION OF MUFFIN PRODUCED FROM COMPOSITE FLOUR OF CORN, WHEAT AND SWEET POTATO [Formulasi dan Optimasi Proses Produksi Mufin dari Tepung Komposit Jagung, Gandum dan Ubi Jalar] Eko Hari Purnomo; Azis B. Sitanggang; Denny S. Agustin; Purwiyatno Hariyadi; Stefani Hartono
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Intensification of use of local carbohydrate sources such as corn and sweet potato is expected to minimize wheat import and support food diversification program. The objective of this research was to optimize the composite flour composition and baking process conditions in muffin production. This research was divided into 3 steps namely formula optimization using mixture design techniques, process optimization using response surface methodology and final product analysis. The formula and process optimization was based on sensory parameter using hedonic rating test involving 70 untrained panelists. The results showed that the optimum formula was a formula with 4% wheat flour, 86% corn flour, and 10% sweet potato flour. The optimum baking condition was 39 minutes at 157°C. Analysis of muffin made with the optimum formula and baking conditions showed that the muffin had hardness, moisture, ash, protein, fat, cabohydrate, and crude fibre of 107.3 gf, 23.22%, 1.83%, 5.89%, 22.46%, 69.82%, and 0.26%, respectively.

STRUCTURAL ANALYSIS OF SPRAY-DRIED COCONUT SHELL LIQUID SMOKE POWDER [Analisis Struktural Bubuk Asap Cair Batok Kelapa Hasil Pengeringan Semprot] Satrijo Saloko; Purnama Darmadji; Bambang Setiaji; Yudi Pranoto
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

The research was aimed at determining spray drying conditions during the production of smoke particulate powder and its consequences on the physical properties of the product. The experiment was carried out using a complete randomized factorial design. Samples were three solution of chitosan (CS)-maltodextrin (MD) based nanoparticles i.e. CS (0.5% w/v) and MD (9.5% w/v) in acetic acid (1.0% v/v) without liquid smoke (F1), only MD (10% w/v) in liquid smoke (F2) and a mixture of CS (1.5% w/v) and MD (8.5% w/v) in liquid smoke (F5). Each sample solution was prepared at 10% solid contents with addition of 1.0% sodium tripolyphosphate. The experimental factors were inlet air temperatures (T) of 130°C (T1) and 150°C (T2) and feed flow rate (L) of 2.4 mL/minute (L1) and 5.1 mL/minute (L2). The parameters evaluated included bulk density, yield, moisture content, water activity, morphology and particle size. Results showed that the average particle sizes decreased when the inlet air temperature increased. The bulk density, moisture content and water activity of powders tended to decrease with the increase of inlet air temperature. In contrast, the powder yield increased with increasing of inlet air temperature. Furthermore, characteristics of the powder particulates were spherical with smooth surfaces for all treatments but when the inlet air temperatures was high the particles has deeper surfacial grooving and shriveled, especially for sample F1.

CHARACTERISTICS OF WHITE CORN NOODLE SUBSTITUED BY TEMPEH FLOUR [Karakteristik Mi Jagung Putih dengan Substitusi Tepung Tempe] Nur Aini; V. Prihananto; S. Joni Munarso
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Different corn type and processing of corn flour can produce flour with different physical and chemical characteristics. Processing of such flour into noodle will also result in different properties of noodle. While substitution of corn flour with tempeh flour can improve the protein content of the noodle it also impair its sensory characteristics. The objectives of this research were to determine the best combination of corn flour-type, corn flour processing and proportion of corn:tempeh flour to produce the best corn noodles based on physical, chemical and sensory properties. The observed variables of this study were moisture, ash, soluble protein, fat, elongation, colour, flavour, taste, and preferences. The results showed that based on physical, chemical and sensory properties, the best corn noodle could be made from flour made from waxy corn soaked for 24 hours and a ratio of corn:tempeh flour of 80:20. The noodle produced had 12.1% of total protein content, 2.8% of soluble protein, 8.4% of fat, 5.9% of moisture, 3.6% of ash, 69.9% of carbohydrate, 17.6% of elongation, yellow colour, slight flavour of corn/soybean, and 2.6 of preferences.

SURVIVAL OF Cronobacter sakazakii IN SKIM MILK DURING SPRAY DRYING, STORAGE AND RECONSTITUTION [Ketahanan Hidup Cronobacter sakazakii dalam Susu Skim selama Proses Pengeringan Semprot, Penyimpanan dan Rekonstitusi] Ratih Dewanti Hariyadi; Fenny Larasati; Lilis Nuraida
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Cronobacter sakazakii is an emerging pathogen known to survive dry conditions and its presence in powder infant formula (PIF) has been linked to several outbreaks. In Indonesia, isolation of this bacterium from various foods have been reported. The objective of this study was to determine the effect of spray drying and storage humidity on the survival of C. sakazakii YRc3a in skim milk and their viability upon reconstitution. The survival of Cronobacter during spray drying was determined by comparing the number of bacteria before and after drying. The viability of Cronobacter in spray dried skim milk (SDSM) during storage was observed at weeks 1 to 8 and 12. At the same intervals, SDSM containing the pathogens was reconstituted at either 27°C or 50°C and the survivors were enumerated. The data were plotted to yield survival curves. Spray drying caused 4.19 log CFU/g reduction of Cronobacter and the bacteria experiencing drying were less sensitive to reconstitution at 50°C. During storage, the water activity of SDSM reached equilibrium at week 2 and afterwards, they started to decrease when stored at 50% or 90% RH, but maintained its viability at 70% RH. Storage at 50% and 90% RH accelerated the death rate of C. sakazakii YRc3a, resulting in the decline of the viable counts for 3 log cycles. At 50% RH, C. sakazakii Yrc3a decreased significantly, but the survivors exhibited increased heat resistance with the lowest reduction upon reconstitution at 50°C (0.16 log CFU/ml).

QUANTIFICATION OF Salmonella Typhimurium REDUCTION DURING COLD STORAGE OF RAW SHRIMPS IN THE PRESENCE OF SODIUM METABISULFITE [Kuantifikasi Reduksi Salmonella Typhimurium pada Udang Segar selama Penyimpanan Dingin dengan Penambahan Natrium Metabisulfit] Harsi Dewantari Kusumaningrum; Andiarto Yanuardi
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Prediction of bacterial growth, survival or reduction in food matrices is needed for microbiological risk assessment. The survival of Salmonella Typhimurium on surfaces of raw shrimps at low temperature was studied, in the presence of sodium metabisulfite which is often used to prevent melanosis. The growth and/or reduction rates were quantified using DMFit software with Baranyi model and or linear model. The result showed that without sodium metabisulfite (control), when the initial level was high (105 CFU/ml), S. Typhimurium grew with a lag phase of 51.99±7.46 h and a growth rate of 0.01±0.002 log CFU.ml-1.h-1 on raw shrimps during storage at 8±2°C. When 1.5% (w/w) sodium metabisulfite, a maximum level that often used to prevent melanosis, was added under the same condition, the number of S. Typhimurium was reduced for 5 log CFU/ml after 5 days, with a reduction rate of -0.03±0.001 log CFU.ml-1.h-1. This study indicated that Baranyi model can be used to predict the growth of S. Typhimurium on raw shrimp at low temperature, when sodium metabisulfite is absent. However, when sodium metabisulfite is present, at least 0.4% as found in this study, the reduction of S. Typhimurium can be predicted using a simple linear model.

PHYSICOCHEMICAL PROPERTIES OF INSTANT PUMPKIN JAVANESE NOODLE GRAVY [Sifat Fisikokimia Saus Bubuk Mi Jawa Instan dari Labu Kering] Ng Kim Yee; Yusnita Hamzah
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

This research was carried out to study the physical and chemical characteristics of pumpkin Javanese noodle gravy prepared in powder form. The finished product is categorized as an instant product as it only needs to be rehydrated with warm water (60°C) before consumption. Five gravy formulations were developed with the incorporation of two types of flour (tapioca and corn flours) as the thickening agent. Physical characteristics including colour and swelling properties of the final products were evaluated. For chemical analysis, ash, moisture, protein, crude fiber, fat and carbohydrate compositions were also determined. For physical analysis, all formulations showed similar colour appearance of the gravy powder including lightness (L), redness (a*) and yellowness (b*). Pertaining swelling properties of the dried gravy, the water absorption index (WAI) values were low (2.0–3.0g/g), while the water solubility index (WSI) were moderate (33.0–50.0%) when evaluated at both hot (85°C) and cold (25°C) water. In termn of chemical compositions, carbohydrate and fat content increased and decreased, respectively with the addition of tapioca and corn flours. The moisture content of the instant gravy increased with the increased of corn flour addition. There were differences in fiber and ash content in all formulations, but no specific trend was observed. Finally, protein content remained the same in all formulations. This current finding provided information of the gravy powder produced. Further analysis on the characteristics of the rehydrated pumpkin Javanese noodle gravy will provide a more complete picture of the finished product.

EFFECT OF PRETREATMENTS ON CHEMICAL AND ANTIOXIDANT PROPERTIES OF SKY FRUIT (Swietenia macrophylla) SEED OIL [Pengaruh Pra-perlakuan Terhadap Sifat Kimia dan Antioksidan Minyak Biji Buah Tunjuk Langit (Swietenia macrophylla)] Lau Chiew Ping; Nor Hayati Ibrahim; Hayati Mohd Yusof
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

The objective of this study was to investigate the effect of pretreatments on chemical and antioxidant properties of sky fruit (Swietenia macrohylla) seed oil. The seeds were treated with different heat pretreatments (roasting, steaming, and microwaving) and subsequently subjected to oil extraction by using a Bligh and Dyer method. It was found that different pretreatments significantly (p<0.05) affected yield and peroxide value of the extracted oils. However, no significant effect of pretreatment was observed on free fatty acid content of the seed oils. The oils exhibited significantly different levels of 1, 1-diphenyl-2-picrylhydrazyl (DPPH) scavenging activity due to different heat pretreatments. The results revealed that the mean percentages of DPPH scavenging activity of untreated (control) seed oil (87.69%) and steamed seed oil (83.40%) were significantly higher than those of roasted seed oil (75.71%) as well as the microwaved one (63.98%). In contrast, the pretreatments did not significantly affect total phenolic content (TPC) of the seed oils with the TPC mean values ranging from 0.016 to 0.022 mg/g (as gallic acid). Data gained from this study provided valuable information for edible oil industries in searching for alternative source of edible oil with medicinal benefits.

EXTRACTION AND CHARACTERIZATION OF MUCILAGE FROM LEAVES OF Pereskia bleo (ROSE CACTUS) [Ekstraksi dan Karakterisasi Getah Daun Kaktus Mawar (Pereskia bleo)] Ng Tze Hong; Nor Hayati Ibrahim
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Pereskia bleo (rose cactus) is a type of tropical herbs which has long been used for its medicinal benefits among Malays and is also known to contain complex polysaccharide called mucilage. In this study, mucilage from leaves of rose cactus was extracted by using distilled water or 0.14 M sodium hydroxide (NaOH) solution at three different temperatures (i.e. 50°C, 70°C or 90°C). There was a significant (p<0.05) interaction effect between type of medium used and temperature on yield of mucilage. Extraction using 0.14 M NaOH solution at 70°C provided the highest yield (2.55%) of mucilage as compared to other extraction conditions. The mucilage extracted with 0.14 M NaOH solution at 70°C was further characterized in terms of physicochemical properties and compared with arabic gum. The crude protein, moisture and ash content of the mucilage were 4.81%, 13.59% and 28.67% respectively. It possessed appreciable amount of elements such as calcium (48.96 mg/g sample), and potassium (15.58 mg/g sample). The pH value of the mucilage was 10.89 (alkaline) and it exhibited a clear thixotropic flow behavior with acceptable emulsion capacity (7.08%) and stability (7.31%) at 1% concentration. The colour of the mucilage and water holding capacity (WHC) was L*= 68.81, and 461.87 % respectively. These findings suggest that rose cactus mucilage could be an interesting functional food ingredient as it originated from a well-known medicinal plant though further study should be done in order to fully understand its potential as one of alternative food hydrocolloids.

AKTIVITAS ANTIBAKTERI FRAKSI-FRAKSI EKSTRAK SIRIH HIJAU (Piper betle Linn) TERHADAP PATOGEN PANGAN [Antibacterial Activity of Fractionated Green Sirih (Piper betle Linn) Extract Against Food Pathogenic Bacteria] . Suliantari; Betty S. L. Jenie; Maggy T. Suhartono
Jurnal Teknologi dan Industri Pangan Vol. 23 No. 2 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Fractionation of green sirih (Piper betle Linn) extract by chromatography colom using the mixture of several solvents i.e. chloroform, ethanol and acetic acid (4:1:1) resulted in 17 fractions. All fractions showed antibacterial activities but only 2 fractions (fraction 3 and fraction 4) showed the highest inhibition towards the six tested bacteria Escherichia coli, Salmonella Typhimurium, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus cereus and Listeria monocytogenes. Among the tested bacteria, all fractions of green sirih extracts showed the most effective inhibition against, Salmonella Typhimurium with inhibition zone diameters ranging from 10 mm to 26 mm. Identification using GC-MS found that fraction 3 and fraction 4 contained chavicol; dodecanoic acid, myristic, palmitic and oleic acid.

TEPUNG KAYA PROTEIN DARI KORO KOMAK SEBAGAI BAHAN PANGAN FUNGSIONAL BERINDEKS GLISEMIK RENDAH [Protein Rich Flour from Hyacinth Bean as Functional Food Ingredient with Low Glycemic Index] Ahmad Nafi’; Wiwik Siti Windrati; Andri Pamungkas; Achmad Subagio
Jurnal Teknologi dan Industri Pangan Vol. 24 No. 1 (2013): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

ABSTRACT Protein-rich flour (PRF) produced from Hyacinth bean (Lablab purpureus (L) Sweet) shows good potency as a functional food ingredient. The PRF was extracted from hyacinth bean using water followed by protein precipitation at its isoelectric point. The precipitate was neutralized using 1 N NaOH and the slurry was dried, ground and sieved. The objective of this research was to characterize the nutritive value of PRF i.e., protein content and amino acid profile, trypsin inhibitors activity, content of vitamins B1 and B2, the amylose and amylopectin ratio of starch and its glycemic index. The results showed that the PRF contained high protein (58.4±4.5%). The major amino acid was glutamic acid, while methionine was found as the limited amino acid of the PRF. The activity of trypsin inhibitor was low (20.4±1.6 unit/g). Moreover, PRF contains 0.2 and 3.6 mg/100 g of vitamins B1 and B2 respectively. With a high ratio of amylose (30.0±2.0%) and high content of resistance starch (7.97 g/100 g), the PRF showed a low glycemic index (43.50). Based on its characteristics, this PRF can be promoted as a new food ingredient, especially for diabetic diet. Keywords: glycemic index, nutritive value, protein rich flour Komak (Lablab purpureus (L) Sweet)

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Sekretariat Jurnal Teknologi dan Industri Pangan

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jurnaltip@gmail.com/jurnaltip@yahoo.com

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+62251-8626725

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Gedung PAU lt. 2 Fateta Kampus Dramaga IPB Bogor

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