Feri Kusnandar
Departemen Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Bogor

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Effects of Pre-treatments Prior Drying on Young Corn Kernel Instant (YCKI)

Jurnal Teknologi Dan Industri Pangan Vol 19, No 2 (2008): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

he objective of this research was to study the effects of pre-gelatinization and freezing processes on physico-chemical characteristics of young corn kernel instant. The results showed that pre-gelatinization and slow freezing processes significantly affected bulk density, rehidration capacity, hardness and cooking time of young corn kernel instant. The study of water sorption isothermic showed that the product had a sigmoid curve. Based on this curve, shelf life of the product had been calculated. The YCKI waxy, YCKI Flint, and YCKI Sweet products packed in alufo had shelf life of 7.2, 12.1 and 13.8 months respectively.Key words: young corn kernel instant, pre-gelatinization,slow freezing, drying, water sorption isothermic, shelf life

SIFAT FUNGSIONAL PATI GARUT HASIL MODIFIKASI HIDROKSIPROPILASI DAN TAUT SILANG [Functional Properties of Hydroxypropylated and Crosslinked Arrowroot Starch]

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

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Abstract

SIFAT FUNGSIONAL PATI GARUT HASIL MODIFIKASI HIDROKSIPROPILASI DAN TAUT SILANG [Functional Properties of Hydroxypropylated and Crosslinked Arrowroot Starch] Rijanti Rahaju Maulani1)*, Dedi Fardiaz2), Feri Kusnandar2) dan Titi Candra Sunarti3) 1) Program Studi Rekayasa Pertanian, Sekolah Ilmu dan Teknologi Hayati, Institut Teknologi Bandung,  Jl. Ganesa No. 10, Bandung, Indonesia 2) Departemen Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian, Institut Pertanian Bogor,  Kampus IPB Darmaga, Bogor, Indonesia 3) Departemen Teknologi Industri Pertanian, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Kampus IPB Darmaga, Bogor, Indonesia   Diterima 25 September 2012 / Disetujui 29 Juli 2013 ABSTRACT   Dual-modified arrowroot starch using hydroxypropylation and cross-linking methods was carried out to overcome the deficiency in of native arrowroot starches for food processing application. The modification applied the combination concentration of propylene oxide (8, 10, and 12%) and ratio of sodium trimetaphosphate (STMP):sodium tripolyphosphate (STPP) (1%:4%, 2%:5%, and 3%:6%). The resulting dual-modified arrowroot starches had lower gelatinization temperature (68.45–70.00ºC) than that of native arrowroot starch (72.85ºC). The modified arrowroot starches also had a higher peak viscosity (>5500 cp) than that of native arrowroot starch (4209 cP). Breakdown and setback viscosity of modified arrowroot starch was higher values than the native. At acidic pH, the viscosity decreased at different levels of temperature changes as compared to that of normal pH. Modified starch made with 8% propylene oxide and ratio of STMP: STPP 2%:5% and 3%:6%; as well as that made with 10% propylene oxide and 1% STMP:4% STPP had the lowest syneresis tendency. Decrease in the paste clarity occured with increasing concentration of STMP:STPP. The sedimentation volume of the modified starch was higher (29.17-35.83%) than  that of native starch (28.08%), except for those made with 1% STMP: 4% STPP at concentration of propylene oxide 8% and 12%. The gel strength increased (61.77-78.97 gf) at 8% propylene oxide, but decreased (66.50-47.77 gf) at higher concentrations.

PENDUGAAN UMUR SIMPAN PRODUK BISKUIT DENGAN METODE AKSELERASI BERDASARKAN PENDEKATAN KADAR AIR KRITIS [Accelerated Shelf-life Testing of Biscuits Using a Critical Moisture Content Approach]

Jurnal Teknologi Dan Industri Pangan Vol 21, No 2 (2010): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

PENDUGAAN UMUR SIMPAN PRODUK BISKUIT DENGAN METODE AKSELERASI BERDASARKAN PENDEKATAN KADAR AIR KRITIS [Accelerated Shelf-life Testing of Biscuits Using a Critical Moisture Content Approach] Feri Kusnandar*, Dede R. Adawiyah dan Mona Fitria Departemen Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian,Institut Pertanian Bogor, Bogor   Diterima 12 April 2010  / Disetujui  16  Desember  2010 ABSTRACT   The objective of this research was to determine the shelf-life of commercial soft and hard dough biscuits packed in metallized plastics by using a critical moisture content approach. The critical moisture contents, which were reached when the biscuits started to loss their crispiness and firmness, were 0,064 g H2O/g dried solid for soft dough biscuit and 0.069 g H2O/g dried solid for hard dough biscuit. The soft dough biscuits stored at 30oC and relative humidity of 75% had shelf life of 17.4 months, while that of hard dough biscuit at the same storage condition had shelf life of 16.5 months.   Keyword : Biscuits, shelf life, ASLT method, critical moisture content

PENGARUH PROSES HEAT-MOISTURE TREATMENT (HMT) TERHADAP KARAKTERISTIK FISIKOKIMIA PATI [Effect of Heat-Moisture Treatment (HMT) Process on Physicochemical Characteristics of Starch]

Jurnal Teknologi Dan Industri Pangan Vol 23, No 1 (2012): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

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Penentuan Umur Simpan dan Pengembangan Model Diseminasi Dalam Rangka Percepatan Adopsi Teknologi Mi Jagung bagi UKM

MANAJEMEN IKM: Jurnal Manajemen Pengembangan Industri Kecil Menengah Vol 5, No 1 (2010): Manajemen IKM
Publisher : Institut Pertanian Bogor

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Abstract

Technology of corn noodle, both processed from 100% corn flour and substitution of  wheat flour (by corn flour), was developed by previous researchers but it has not been tested to be applied to the community. The objectives of this study were: (1) identify critical quality parameters and determine the shelf life of corn noodle; (2) to test the production process of dry- and wet-corn on a pilot plant scale and the small industry of wet noodles; and (3) to obtain the quantitative data of consumer acceptance from the wet noodle producers (small-medium enterprise or SMEs) and the consumers. The critical parameters of corn noodles quality during storage were the color, texture (ease of fracture), cooking loss (loss of solids due to cooking), and the degree of rancidity. Based on the aroma parameters, the shelf life of corn noodles on the storage temperature reaches 28oC was 4.6 months. Production of corn noodle routinely has been performed in a pilot plant of SEAFAST Center with a capacity 4 batch per day process. According to the wet noodles producers (small industry), the technology of the 35% substitution of corn noodles (wet noodle) can be directly adopted by SMEs without any change in the production process. The technology of 100% corn noodles can also be adopted with the addition of blanching units before sheeting process. The respondents accept the 35% substitution of corn noodles and considered no different than wheat noodles. Eighty-five percents of meatball noodles SMEs stated that are willing to use the corn wet noodle. Eighty percents of consumer’s meatball noodle said that the wet corn noodle were suitable using for meatball noodles with the acceptance value were close to the wheat noodles.   Keywords: consumer test, corn, noodles, shelf life, SMEs

Antibacterial Activity of Kecombrang Flower Extract Toward Pathogenic and Food Spoilage Bacteria

Jurnal Teknologi Dan Industri Pangan Vol 16, No 2 (2005): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

In this study, kecombrang flowers was extracted with non polar (hexane), semipolar (ethil acetate) and polar (ethanol) solvent. The result revealed that ethil acetat and ethanol extracts inhibited 7 bacteria, i.e : spore forming bacteria (Bacillus cereus), Gram positive bacteria (Staphylococcus aureus) and (Listeria monocytogenes), Gram negative bacteria (Salmonella typhimurium, Aeromonas hydrophila and Escherichia coli), spoilage bacteria (Pseudomonas aeruginosa) but did not inhibit Lactobacillus plantarum. The hexane extract did not show antimicrobial activity. On well diffusion test, ethil acetate developed clear zones of 12.3 – 27.3 mm (diameters) and this was higher than ethanol extract 11.0-15.4 mm (diameters). The MIC (minimum inhibitory concentration) of ethil acetate and ethanol extract against the seven bacteria were 3-13 mg/ml. Key words : Kecombrang (Nicolia speciosa), antibacteria, extract

Effects of pH, Nacl and Teating on the Antibacterial Stability of Kecombrang

Jurnal Teknologi Dan Industri Pangan Vol 17, No 3 (2006): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

The effect of pH (4-9), NaCl concentration (1-5%), temperature and heating time (80, 100 and 1210C for 10, 20 and 30 minute) on the antibacterial effectivity of ethyl acetate and ethanol kecombrang extract were analysed. Both ethyl acetate and ethanol extracts showed antibacterial activity at pH 4-8, but its activity gradually decreased at higher pH. At pH 9, only ethanol extract still showed antibacterial activity. Addition of 1-4% NaCl on ethyl acetate and ethanol extract still showed antibacterial activity. Heating the extracts at 80-100 0C for 10-30 minutes and 1210C for 10 minutes did not haves significantly affect on the antibacterial activity of both ethyl acetate and ethanol extracts. Application of ethyl acetate extract at the concentration of 1 and 3 MIC on minced meat were still effective to reduce the viable bacteria until 7 days and 5 MIC was still effective until 9 days. Key words : Kecombrang, pH, NaCl, temperature and heating time, antibacteria

Stability of Viable Counts of Lactic Acid Bacteria during Storage of Goat Milk Soft Cheese

Microbiology Indonesia Vol 5, No 4 (2011): December 2011
Publisher : Indonesian Society for microbiology

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Abstract

The use of goat milk is limited in Indonesia due to lack of good milking practices resulted in disliked goaty smell. One of the method to eliminate this off flavor is by processing the goat milk into soft cheese. The aim of this research was to study the stability of viable starter lactic acid bacteria cultures  (Lactobacillus acidophilus FNCC-0051 and L. casei FNCC-0090) during storage of goat milk soft cheese.  Three batches of goat milk soft cheeses were produced with different starter cultures L. acidophilus FNCC-0051 (5.0 x 106 cfu mL-1); L. casei FNCC-0090 (5.0 x 106 cfu mL-1); and the mixture of L. acidophilus FNCC-0051 (2.5 x 106 cfu mL-1) and L. casei FNCC-0090 (2.5 x 106 cfu mL-1). The goat milk cheeses had white color and soft. The viable lactic acid bacteria in the goat milk soft cheese reached 109 cfu g-1, which was stable for  8 weeks at 5 °C. Panelists liked goat milk soft cheeses, especially in term of its aroma. The specific aroma produced could mask the disliked goaty smell.

PENGEMBANGAN BERAS ANALOG DENGAN MEMANFAATKAN JAGUNG PUTIH [Development of White Corn-Based Rice Analogues]

Jurnal Teknologi Dan Industri Pangan Vol 24, No 2 (2013): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

White corn can be utilized as a source of non-rice carbohydrate in the manufacture of rice analogues. The rice analogues with rice-like characteristics were produced by an extrusion technique. The aim of this research was to develop rice analogues from white corn and to evaluate their physicochemical and sensory properties. The study was conducted in several stages, i.e. preparation, formulation, and physicochemical and sensory properties evaluation. The physicochemical properties of rice analogues evaluated included proximate nutritional composition, dietary fiber concentration, cooking time, water loss rate, color, and whiteness percentage, while their sensory preferences were evaluated using hedonic scale test. The rice analogues made of Pulut Harapan and Lokal Purbalingga corns (4.34:65.66%) added with 30% sago starch, was found to be the most preferred. The moisture, ash, protein, fat, carbohydrate, and dietary fiber composition of this rice analog was 9.32, 0.38, 6.86, 1.22, 91.54, and 5.35%, respectively.

PROFIL AROMA DAN MUTU SENSORI CITARASA PASTA KAKAO UNGGULAN DARI BEBERAPA DAERAH DI INDONESIA [Aroma and Flavor Sensory Profiles of Superior Cocoa Liquors from Different Regions in Indonesia]

Jurnal Teknologi Dan Industri Pangan Vol 25, No 1 (2014): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

PROFIL AROMA DAN MUTU SENSORI CITARASA PASTA KAKAO UNGGULAN DARI BEBERAPA DAERAH DI INDONESIA [Aroma and Flavor Sensory Profiles of Superior Cocoa Liquors from Different Regions in Indonesia] Intan Kusumaningrum1)*, C. Hanny Wijaya2), Feri Kusnandar 2), Misnawi3) dan Ariza Budi Tunjung Sari3) 1) Program Studi Magister Ilmu Pangan, Institut Pertanian Bogor, Bogor 2) Departemen Ilmu dan Teknologi Pangan, Fakultas Teknologi Pertanian, Institut Pertanian Bogor, Bogor 3) Pusat Penelitian Kopi dan Kakao Indonesia, Jember   Diterima 12 Desember 2013 / Disetujui 06 Mei 2014 ABSTRACT The objective of this research was to compare the aroma profiles and flavor sensory qualities of three cocoa liquors obtained from different regions in Indonesia, namely East Java, South Sulawesi and Bali. The Ghanaian cocoa liquor was used as the reference. The aroma of cocoa liquors was extracted by using a Solid Phase Microextraction (SPME), followed by detection with Gas Chromatography-Mass Spectrometry/Olfactometry (GC-MS/O) with the Nassal Impact Frequency (NIF) method. A total of 28 aroma active compounds in the cocoa liquors were identified, where in 21, 19, 22 and 18 compounds were detected in East Java, Bali, South Sulawesi and Ghana liquors, respectively. The profiles of these three liquors were not only different from one another but were also different from the reference. East Java liquor had a specific aroma of strong chocolate, enriched with creamy, caramel and coffee bean aroma, whileBali liquor was dominated by creamy, caramel and sweet, and South Sulawesi liquor was specified by its sweet green aroma. The aroma sensory characteristic was evaluated by descriptive test, presenting the aroma of nutty, acid, caramel, earthy and chocolate, while the taste sensory attributes included astringency, bitterness and acidity. The sensory profile analysis was carried out by applying a Quantitative Descriptive Analysis (QDA) method. Accompired with preference and ranking tests were also conducted. Among the three cocoa liquors, the sensory profile of South Sulawesi was the most similar to that of Ghanaian cocoa liquor. However, the cocoa liquor from Bali and East Java cocoa were more preferred comparing to the liquor from South Sulawesi.