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Jurnal Teknologi Dan Industri Pangan
ISSN : 19797788     EISSN : 2087751X     DOI : 10.6066
Arjuna Subject : -
Articles 635 Documents
PENGIKATAN GARAM EMPEDU OLEH SUSU KEDELAI TERFERMENTASI DAN STABILITASNYA TERHADAP PEPSIN DAN PANKREATIN [Binding of Bile Salts by Fermented Soymilk and Its Stability Against Pepsin and Pancreatin] . Yusmarini; Retno Indrati; Tyas Utami; Yustinus Marsono
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.471 KB) | DOI: 10.6066/jtip.2013.24.1.105

Abstract

ABSTRACT Processed soybean products especially the fermented ones have beneficial health effects since they are capable of reducing the level of plasmacholesterol (hypocholesterolemic effect). One of the mechanisms is by increasing the binding of bile salt. This research was aimed to assess the ability of soymilk, fermented soymilk products and fermented soymilk products combined with enzymatic hydrolysis to bind bile salts. The stability of the binding against hydrolysis by digestive enzymes (pepsin and pancreatin) was also evaluated. Fermented soybean products inoculated with isolates of L. plantarum 1 R.11.1.2 was be able to bind 1.40 μmol/100 mg protein (62.26%) of natrium taurocholate. This binding ability is slightly higher than that of soymilk to natrium taurocholate, i.e.1.33 μmol/100 mg protein (59.04%). Addition of a protease enzyme specific to hydrophobic amino acid (thermolysin) on fermented soymilk products was able to enhance the ability of bind natrium taurocholate. Enzymatic hydrolysis products having a molecular weight of
RESPON IMUN MUKOSA DAN SELULER PADA TIKUS YANG DIBERI BUBUK SUSU KAMBING DENGAN INFEKSI Salmonella Typhimurium [Mucosal and Cellular Immune Response of Rat Given Goat Milk Powder and Infected with Salmonella Typhimurium] . Nurliyani; Madarina Julia; Eni Harmayani; Endang Baliarti
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (374.173 KB) | DOI: 10.6066/jtip.2013.24.1.7

Abstract

ABSTRACT Goat milk contains bioactive proteins and oligosaccharides which can act as immunomodulators and prebiotics respectively. The objectives of this study were to determine the effect of giving goat milk powder on mucosal immune response (sIgA/secretory immunoglobulin A), cellular immune response (IFN-γ/interferon-γ) and the total number of lactobacilli in caecal digesta of infected rat by Salmonella Typhimurium. Male Sprague Dawley rats 3 weeks old were divided into two groups: 1) goat milk powder treatment, and 2) control. After 14 days given goat milk powder, the rats were infected with Salmonella Typhimurium and after 21 days were killed. The results showed that the average concentration of sIgA in group of rats given with goat milk powder was not significantly different with the control rat (42.95 ng/ml). The concentration of IFN-γ in rat given with goat milk powder was significantly different (63.33 pg/ml) from the control (45.00 pg/m) (p
PENAMBAHAN TEPUNG UMBI DAHLIA, KEDELAI DAN BAWANG PUTIH SEBAGAI SUMBER PREBIOTIK UNTUK ENKAPSULASI PROBIOTIK [Addition of Flours from Dahlia Tuber, Soybean and Garlic as Prebiotic Sources for Probiotic Encapsulation] . Ngatirah; Maria Ulfah
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (462.719 KB) | DOI: 10.6066/jtip.2013.24.1.14

Abstract

ABSTRACT The research was conducted to study the effect of addition of flours made from dahlia tuber, soybean and garlic as the sources of natural prebiotic on the encapsulation of probiotic (Lactobacillus acidophilus Dad 13) with carragenan and chitosan. Carragenan and chitosan are potential encapsulating agents that can protect bacterial cells from unfavorable conditions. It is hypothesized that addition of natural prebiotics from dahlia tuber, soybean and garlic can stimulate the growth of probiotic (L. acidophilus Dad 13) in MRS broth medium. Parameters evaluated were size and weight of capsule, number of cells in the capsule, acid and bile salt resistance of the biocapsule produced from carragenan and chitosan added with flours of dahlia tuber, soybean and garlic as the sources of natural prebiotic. The randomized complete block design was used as the experimental design with two factors. The first factor was the encapsulating agents (A1 carragenan, A2 chitosan) and second factor was the sources of natural prebiotic (P1 dahlia tuber, P2 garlic, P3 soybean). The results showed that the type of encapsulating agent had an effect on weight, diameter and number of cells in the capsule but did not affect the acid and bile salt resistance. Addition of prebiotic flour to biocapsules had an effect on weight and diameter of capsules but no effect on acid and bile salt resistance and the number of cells. Addition of flour as prebiotic source from dahlia, garlic and soybean increased the cell number by 1 log cycle. Capsules made from chitosan with the addition of prebiotic source flour were lighter, had shorter diameter and lower cell reduction by acid (4.63-5.24 log cycle) than those made with carragenan (6.93-7.19 log cycle). Based on the acid resistance, the best biocapsules was made with chitosan and dahlia prebiotic flour. Keywords: carragenan, chitosan, Lactobacillus acidophilus Dad 13, natural prebiotic fluor, probiotic encapsulation
POTENTIAL APPLICATION OF ROSELLE EXTRACT IN FUNCTIONAL FOOD EMULSIONS [Aplikasi Ekstrak Rosela sebagai Pengemulsi pada Sistem Emulsi Pangan Fungsional] Nor Hayati Ibrahim; Tan Sook Lee; M. Zul Helmi Rozaini
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (573.135 KB) | DOI: 10.6066/jtip.2013.24.1.22

Abstract

ABSTRACT This research was undertaken to investigate the effect of Roselle (Hibiscus sabdariffa. L) extract on the physical properties and stability of extra virgin olive oil emulsions. Four different emulsions were prepared with methanolic Roselle extract (0.01 and 0.02%) and 0.02% BHT (commercial antioxidant) as well as without the extract/ antioxidant (control). The physical properties were studied in terms of pH, droplet size distribution, microstructure, viscosity and stability towards phase separation and lipid oxidation (under accelerated oxidation at 60°C for 10 days). The emulsions with Roselle extract was found to exhibit lower polydispersity and more uniform droplet size as compared to control and BHT emulsions. The highest viscosity was observed for the emulsion with 0.02%. The BHT emulsion was the most unstable towards phase separation after 15 days of storage at 5°C. A protective effect of Roselle extract against lipid oxidation in the emulsions was clearly observed at 0, 2, 8 and 10 days of accelerated storage (at 60°C) with considerably low total oxidation values (5.4 to 13). All emulsions showed insignificant deterioration with peroxide value < 20 meq/kg after oxidation period. This study provided important preliminary data on possibility of applying Roselle extract (which is known to content a significant amount of bioactive compounds) in producing functional food emulsions with acceptable properties and stability. Keywords: antioxidants, emulsion, roselle extract, stability, properties
ISOLASI Campylobacter DARI KARKAS AYAM MENGGUNAKAN METODE KONVENSIONAL DAN POLYMERASE CHAIN REACTIONS [Isolation of Campylobacter from Poultry Carcasses using Conventional and Polymerase Chain Reaction Methods] . Andriani; Mirnawati Sudarwanto; Surachmi Setiyaningsih; Harsi Dewantari Kusumaningrum
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.597 KB) | DOI: 10.6066/jtip.2013.24.1.27

Abstract

ABSTRACT Campylobacter jejuni and Campylobacter coli are two spesies of Campylobacter sp. frequently found as pathogenic bacteria causing human gastrointestinal infections. Contaminated chicken carcasses have been reported as the source of human campylobacteriosis. In this study, Campylobacter were isolated from chicken carcasses sold in traditional markets and supermarkets. In traditional markets, chicken carcasses are sold without proper packaging or in an open space and stored at room temperature (25-30°C) for prolonged period allowing pathogenic bacteria to grow. While at supermarkets, chicken carcasses are openly displayed or enclosed in plastic wrappings and stored in a refrigerator (4-8°C). A total of 298 samples of chicken carcasses from traditional markets and supermarkets in the area of DKI Jakarta, West Java (Bogor and Sukabumi) and Central Java (Kudus and Demak) were collected. Isolation and identification using conventional and Polymerase Chain Reactions (PCR) methods were done to determine the prevalence of C. jejuni and C. coli contamination in poultry. The results showed that chicken carcasses sold in the sampling area, both traditional markets and supermarkets, were contaminated with C. jejuni and C. coli. The contamination rate of Campylobacter sp. in chicken carcasses sold in supermarkets, were 14.1% by conventional methods and 29.5% by PCR. This was higher than those in traditional markets, i.e. 5.7 and 12.1%, respectively. It is also confirmed that the prevalence for contamination of C. jejuni was higher than C. coli in 298 samples, i.e. 16.1% and 3.7% by conventional method and 23.5% and 18.1% by PCR method respectively. Keywords: Campylobacter coli, Campylobacter jejuni, poultry carcasses, supermarket, traditional market
ISOLATION AND IDENTIFICATION OF MICROORGANISMS DURING SPONTANEOUS FERMENTATION OF MAIZE [Isolasi dan Identifikasi Mikroorganisme pada Fermentasi Spontan Jagung] . Rahmawati; Ratih Dewanti -Hariyadi; Purwiyatno Hariyadi; Dedi Fardiaz; Nur Richana
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (575.448 KB) | DOI: 10.6066/jtip.2013.24.1.33

Abstract

Maize was traditionally the second most common staple food in Indonesia. Conversion to maize flour has been accomplished to improve its convenience. Traditionally, maize flour is produced by soaking the kernels in water followed by grinding. It was reported that final physicochemical characteristics of the maize flour were influenced by spontaneous fermentation which occurred during soaking. This research aimed to isolate and identify important microorganisms that grew during fermentation thus a standardized starter culture can be developed for a more controlled fermentation process. Soaking of maize grits was conducted in sterile water (grits:water=1:2, w/v) in a closed container at room temperature (±28ºC) for 72 hours. After 0, 4, 12, 24, 36, 48, 72 hours, water and maize grits were sampled and tested for the presence of mold, yeast, and lactic acid bacteria (LAB). Isolates obtained from the spontaneous fermentation were reinoculated into the appropriate media containing starch to observe their amylolytic activity. Individual isolate was then identified; mold by slide culture method, while yeast and LAB by biochemical rapid kits, i.e. API 20C AUX and API CH50, respectively. The number of each microorganism was plotted against time to obtain the growth curve of the microorganisms during spontaneous fermentation. The microorganisms were identified as Penicillium chrysogenum, P. citrinum, A. flavus, A. niger, Rhizopus stolonifer, R.oryzae, Fusarium oxysporum, Acremonium strictum, Candida famata, Kodamaea ohmeri, Candida krusei/incospicua, Lactobacillus plantarum 1a, Pediococcus pentosaceus, L. brevis 1, L. plantarum 1b, and L. paracasei ssp paracasei 3. Four molds and one yeast were amylolytic while none of the LAB was capable of starch hydrolysis. The growth curve suggested that the amylolitic mold and yeast grew to hydrolyze starch during the course of fermentation, while the LABs benefited from the hydrolyzed products and dominated the later stage of the fermentation.
SENSORY EVALUATION AND SURVIVAL OF PROBIOTICS IN MODIFIED BANANA FLOUR YOGHURT DURING STORAGE [Evaluasi Sensori dan Sintasan Probiotik dalam Yoghurt Tepung Pisang Modifikasi selama Penyimpanan] Betty Sri Laksmi Suryaatmadja Jenie; Muhamad Yusuf Saputra; . Widaningrum
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.316 KB) | DOI: 10.6066/jtip.2013.24.1.40

Abstract

Modified uli banana flour (MUBF) rich in resistant starch as prebiotic source was formulated in yoghurt making to substitute skim milk at various concentrations i.e. 40, 50, 60, and 70%. Yoghurts were prepared using Lactobacillus bulgaricus and Streptococcus thermophilus as the starter cultures. The objective of this study was to determine the maximum MUBF concentration to produce yoghurt with good sensory quality and good number of surviving probiotics (Bifidobacterium bifidum and Lactobacillus plantarum BSL) in non-pasteurized and pasteurized (90ºC, 30 minutes) MUBF yoghurt during 4 week of storage at 10ºC. Hedonic rating and ranking test on yoghurt attributes (aroma, taste, consistency, texture, color and overall preference) performed by 35 untrained panelists showed that yoghurt produced with 70% MUBF substitution achieved good preferences in all of the attributes ranging from neutral to like. The pH value of the product decreased with increase in MUBF concentration. In addition, titratable acidity (TA), expressed as % lactic acid, increased. Survival of both probiotics in 70% MUBF yoghurt either in the pasteurized synbiotic or non-pasteurized yoghurts were still relatively high at week 4. The yoghurt still contains 108CFU/ml of lactic acid bacteria, although this was a log decrease from the initial count. Therefore, the MUBF yoghurt was promising as synbiotic yoghurt based on the probiotic counts throughout 4 week of storage, which was higher than the minimum level recommended (106 CFU/ml) to provide the beneficial effect.
KARAKTERISTIK MI BASAH JAGUNG AKIBAT PENGARUH LAJU PENGUMPANAN DAN PENAMBAHAN GUAR GUM [Characteristics of Wet Corn Noodle: Effect of Feeding Rate and Guar Gum Addition] Tjahja Muhandri; . Subarna; Nurheni Sri Palupi
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (385.741 KB) | DOI: 10.6066/jtip.2013.24.1.110

Abstract

The objectives of this research were to (1) investigate the effect of feeding rate on elongation, cooking loss, and microstructure of wet corn noodle properties and (2) investigate the effect of guar gum on elongation, cooking loss, hardness, and sensory quality of wet corn noodle. Corn noodles were made with pasta extruder. Two levels of feeding rate, i.e. 2.10 g/second and 1.87 g/second and three levels of guar gum (0, 1, 2% based on flour weight) were applied during wet corn noodle processing. Increase in feeding rate resulted in increased elongation, decreased cooking loss, and corn noodles microstructure similar to wheat noodle. Addition of guar gum increased elongation, but decreased hardness and cooking loss of the corn noodle. Additionally, guar gum decreased the preference scores.
KARAKTERISTIK FILM PELAPIS PANGAN DARI SURIMI BELUT SAWAH DAN TAPIOKA [Charateristics of Edible Film from Field Eel Surimi and Tapioca Starch] Budi Santoso; . Herpandi; Vemi Ariani; Rindit Pambayun
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.98 KB) | DOI: 10.6066/jtip.2013.24.1.48

Abstract

The objective of this research was to determine the characteristics of edible film made of surimi rice field eel and tapioca starch. The treatments consisted of surimi rice field eel concentrations of of 4, 6, and 8 (% v/v) and tapioca starch concentrations (1, 3, and 5 b/v). The experiment was arranged in a Factorial Randomized Block Design with two factors as treatments, and each combination for the treatment was carried out in triplicates. The results showed that surimi concentration, tapioca concentration and interaction between the two treatments significantly affected (at 5% level test) the water activity, thickness, pressure strength, tensile strength, percentage of elongation, and water vapor transmission rate. The best edible film was made of 6% of surimi concentration and 3% of tapioca concentration. The characteristics of the edible film were water activity of 0.27; thickness of 0.11 mm; pressure strength of 6.51 N/m2; tensile strength of 10.46 N/m2; percent elongation of 32%; and water vapor transmission rate of 6.77 g.m-2.24 hour -1.
CHARACTERISTICS OF SOYMILK ADDED WITH DRAGON FRUIT AND EGGPLANT PEEL EXTRACTS [Karakteristik Susu Kedelai dengan Penambahan Ekstrak Kulit Buah Naga dan Kulit Terong] Diana Sari Kusuma; Filiana Santoso; Elisabeth Kartika Prabawati
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (293.683 KB) | DOI: 10.6066/jtip.2013.24.1.54

Abstract

Soymilk has become progressively consumed in Indonesia since early 1990. However, soymilk has a short shelf life due to its high protein content that promotes growth of spoilage microorganisms. This study was aimed at utilizing peel waste of eggplant (Solanum melongena L.) and dragon fruit (Hylocereus polyrhizus), to prolong shelf life of fresh soymilk through microbial growth inhibition, so that it will not be easily contaminated during storage, transportation and distribution time to meet the needs of consumers. Microbiological analysis showed a notably higher inhibitory effect of dragon fruit peel extract when soymilk was stored at 4ºC and it exhibited lower number of colonies even after 6 days. Interestingly, the antimicrobial activity of eggplant peel extract in cold soymilk could only be observed on day 3 until day 9. Hence, it is assumed that chlorogenic acid, as a primary antimicrobial agent in eggplant peel, needed certain time interval to activate its inhibitory activity against microorganism. However, the two peel extracts could not prolong the shelf life of soymilk stored at ambient temperature. All soymilk samples added with the peel extracts fulfilled the Indonesian National standards (SNI) for pH value, protein, and total solid content. Based on the sensory evaluation, the samples with dragon fruit peel extract attained a comparable acceptance level as plain soymilk and were favored over those added with eggplant extract. In conclusion, this research indicated potential applications of usual household waste of dragon fruit and eggplant peels as antimicrobial agents for protein-rich beverages.

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