Widyastuti, Theresia Endang Widoeri
Program Studi Teknologi Pangan, Fakultas Teknologi Pertanian, Universitas Katolik Widya Mandala Surabaya

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PENGARUH KONSENTRASI TEPUNG PEPAYA DAN LAMA PENYIMPANAN TERHADAP SIFAT FISIK BEADS DAN VIABILITAS Lactobacillus acidophilus FNCC 0051 TERIMOBIL Purba, Grace Sri; Widyastuti, Theresia Endang Widoeri; Kuswardhani, Indah
Jurnal Teknologi Pangan dan Gizi Vol 15, No 2 (2016)
Publisher : Widya Mandala Surabaya Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.33508/jtpg.v15i2.1537

Abstract

The purpose of this study was to determine the effect of papaya powder concentration and storage time to the physical properties of beads and viability of immobilized Lactobacillus acidophilus FNCC 0051. The Randomized Block Design (RBD) factorial design to be used. There were two (2) factors: concentration of papaya powder consisting of two (2) levels, which were 3% (w/v) and 6% (w/v) and storage time consisting of five (5) levels, which were 0, 7, 14, 21, and 28 days. Each treatment combinations repeated three (3) times. Testing is conducted on the beads’ diameter, beads’ texture (hardness, cohesiveness, springiness) and also immobilized cell’s viability. Data analyzed by ANOVA test (Analysis of Varians) at α = 5% and continued with DMRT (Duncan's Multiple Range Test) at α = 5 if the level of treatment had a significant effect. Beads diameter ranged 5.07 – 5.68 mm and the higher papaya powder concentration or the longer storage time would make the beads’s diameter bigger. Hardness ranged 29.2376 – 48.5756 g, cohesiveness ranged 0.3800 – 0.5211, and springiness ranged 0.8398 – 0.9889. The higher level concentration of papaya powder decrease beads’ hardness and cohesiveness but there’s no effect on springiness. The viability of immobilized Lactobacillus acidophillus FNCC 0051 ranged 8.6021 – 11.5474 log cfu/gram. Storage time significantly influenced the viability of immobilized cells, which the highest viable cells (11.1795 log cfu/g) obtained from 21 days of storage time.
KAJIAN JUMLAH SEL TERLEPAS DAN KARAKTER CARRIER PADA BERBAGAI KONSENTRASI TEPUNG PEPAYA DAN LAMA PENYIMPANAN SEL TERIMOBIL DALAM BEADS Christiane, Claudia; Widyastuti, Theresia Endang Widoeri; Kuswardhani, Indah
Jurnal Teknologi Pangan dan Gizi Vol 15, No 2 (2016)
Publisher : Widya Mandala Surabaya Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.054 KB) | DOI: 10.33508/jtpg.v15i2.1532

Abstract

Papaya flour added as prebiotic can influencing the cell growth (Lactobacillus acidophilus FNCC 0051) and beads texture, also total released cells from the beads thus affecting carrier characteristic. The purpose of this research is to study the interaction of papaya flour concentration and storage time, also effect of each factor to total released cells and carrier characteristic. The research design used is Factorial Randomized Block Design (RBD) with two factors namely concentration of papaya flour consisting of two levels, which were 3% (w/v) and 6% (w/v) and the storage time consisting of five (5) levels, which were 0, 7, 14, 21, and 28 days. Each treatment combinations are repeated three times. The analyzed variables were total released cells, pH, total acidity from milk as carrier and also the total of immobilised cells. Data analyzed statistically using ANOVA test (Analysis of Varians) at α = 5% and continued with DMRT (Duncan's Multiple Range Test) at α = 5% to determine which level of treatment that gives significant differences. Papaya flour concentration and storage time give significant interaction effect to the total released cells and total acidity, also significant effect of each factor to carrier’s pH. The higher concentration of papaya flour and the longer storage time increased the total released cells and total acidity. The significant increase of total acidity found in combination of various concentration of papaya flour with 14 to 28 days of storage. The higher concentration of papaya flour or the longer storage time decreased the pH value.
PENGARUH KONSENTRASI TEPUNG PEPAYA DAN LAMA PENYIMPANAN TERHADAP KETAHANAN L. acidophilus FNCC 0051 TERIMOBIL PADA KONDISI ASAM LAMBUNG DAN GARAM EMPEDU Sucipto, Mariska; Widyastuti, Theresia Endang Widoeri; Kuswardhani, Indah
Jurnal Teknologi Pangan dan Gizi Vol 15, No 2 (2016)
Publisher : Widya Mandala Surabaya Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.036 KB) | DOI: 10.33508/jtpg.v15i2.1533

Abstract

Papaya powder added as a prebiotic, but its concentration and storage time in UHT milk as a carrier can impact on viability of immobilized cell in gastric acid and bile salt condition. The purpose of this study was to determine the effect of the interaction of papaya powder concentration and storage time and also the influence of each these factors on the survival of immobilized L. acidophilus FNCC 0051 in gastric acid and bile salt. The research design used a Randomized Block Design (RBD) of factorial design. Papaya powder concentrations as the first factor consisting of two levels (3% b/v and 6% b/v) and the storage times as the second factor consisting of five levels (0, 7, 14, 21, and 28 days). Each treatment combinations repeated three times. Data were analyzed by ANOVA (Analysis of Variance) at α = 5%. Based on the results, use of 6% concentration papaya powder significantly increasing the survival of immobilized L. acidophilus FNCC 0051 on condition of gastric acid. Meanwhile, interaction of papaya powder concentration and storage time significantly affect the resistance of immobilized L. acidophilus FNCC 0051 on bile salt condition. Storage along 14 days decreasing the cells number, but the survival cell on bile salt condition increased by the use of 6% concentration of papaya powder during 21 days of storage. The highest survival with decreased cell 0,1459 log cfu/g obtained from combination of 6% concentration of papaya powder at 21 days of storage time.
PERAN JENIS DAN KONSENTRASI KOAGULAN PADA KARAKTERISTIK TAHU DAN TINGKAT PENERIMAAN KONSUMEN Widjajaseputra, Anna Ingani; Widyastuti, Theresia Endang Widoeri; Suprijono, Maria Matoetina; Trisnawati, Chatarina Yayuk
Jurnal Teknologi Pangan dan Gizi Vol 19, No 2 (2020)
Publisher : Widya Mandala Surabaya Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/jtpg.v19i2.2871

Abstract

The supply of soybean varieties with certain specification is still a problem for the tofu industry, so it needs to be resolved, one of which is the selection of capable coagulant. This research aimed to study the effect of different of coagulants (CaSO4 , CaCl2 , and MgCl2) and the concentration [0.4 % ( w / v ) and 0.5 % ( w / v )] to the characteristics of fresh tofu and its consumer acceptance.The tofu characteristics especially water holding capacity and gel strength could determine the tofu yield and texture parameters. Based on the research result, it showed that different types of coagulant have specific characteristics such as rate of coagulation and water entrapment capacity. Coagulant concentration of 0.5 % on all types of salt coagulant was used in this study showed the effect of decreasing the water holding capacity of the curd. Salt concentration of 0.5 % provided more formed cross-link so that the structure to be too compact. Higher protein content was obtained at concentration of 0.5 % for the same type of coagulant, but it was not followed by significant difference of texture. Based on sensory evaluation data, it can be concluded that CaSO4 0.4 % produced the most preferred product. The usage of MgCl2 0.4% can be recommended beside of CaSO4 0.4 %.
KARAKTERISTIK Karakteristik Fisikokimia Tepung Ubi Jalar Varietas Cilembu dari Proses Penepungan yang Berbeda Maria Matoetina Suprijon; Theresia Endang Widoeri Widyastuti; Anna Ingani Widjajaseputra
Metamorfosa: Journal of Biological Sciences Vol 10 No 1 (2023)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2023.v10.i01.p08

Abstract

East Java is one of the centres of Cilembu orange sweet potato which has the highest beta-carotene content. Fresh sweet potato has a limited shelf life so it is processed into flour but it causes colour degradation of sweet potato flour. Therefore, it is necessary to investigate the use of drying temperature and orange sweet potato shaped which can still maintain the physicochemical properties, as well as have the functional properties needed in processing of the next product. The Cilembu orange sweet potato samples used in this study were generally shaped like a spindle with an average length of 17.27+2.64 cm, the diameter of the top 4.28+0.72 cm, middle 7.04+0.69 cm and bottom 5.08+1.12 cm. Drying using a cabinet drier at 50?C resulted in the yield of flour from the sliced ??treatment was 16.78% and grated flour was 6.34%. Slices and grated before drying affected the colour, gelatinization profile, and viscosity of the flour samples. The water absorption of the flours was 1.90+0.05 ml/g. The flours colour looked paler than the fresh, but the L* value of grated flour was higher than sliced flour. The values ??of a* and b* decreased significantly even though they were still positive, which means they were still orange. Based on the values ??of L*, a*, b*, the sliced ??treatment was able to maintain the colour of the flour samples better (more orange) than the grated. The grated flour had very varied starch granule sizes. This affects the unstable gelatinization and viscosity profile.
UPAYA PENINGKATAN EKONOMI IRT DAPURE INDAH MELALUI PELATIHAN PEMBUATAN MI BASAH DAN MI BELUNTAS Paini Sri Widyawati; Anna Ingani Widjajaseputra; Theresia Endang Widoeri Widyastuti; Susana Ristiarini
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 6 No 2 (2022)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/logista.6.2.1-8.2022

Abstract

IRT Dapure Indah adalah salah satu industri rumah tangga yang bergerak dibidang penjualan pangsit mi. Bahan baku mi basah yang dijual berasal dari suatu industri pembuatan mi komersial di kota Surabaya. Oleh karena itu IRT ini menjual pangsit mi dengan harga dasar sangat tergantung pada harga mi basah yang dibeli, sehingga mempengaruhi jumlah pangsit mi yang terjual. Selama ini IRT Dapure Indah belum mengetahui cara memproduksi mi basah serta diversifikasinya. Beluntas adalah tanaman herbal yang telah terbukti mempunyai aktivitas antioksidan dan antidiabetik. Penggunaan air seduhan teh daun beluntas dalam pembuatan mi beluntas sebagai diversifikasi mi basah belum pernah diperkenalkan dan dikomersialkan. Oleh karena itu perlu memberikan pelatihan aplikasi penggunaan air seduhan teh daun beluntas untuk memperkaya nilai fungsional dari mi basah, disamping memberikan pelatihan cara pembuatan mi basah plain (umum/kontrol) pada IRT Dapure Indah. Tujuan dari pengabdian kepada masyarakat ini adalah memberikan pelatihan memproduksi mi basah plain/umum/kontrol dan mi beluntas sebagai diversifikasi untuk meningkatkan ekonomi IRT Dapure Indah. Kegiatan abdimas berlangsung di IRT Dapure Indah di Perumahan Green Semanggi Mangrove Blok G1-23 selama 3 bulan (Mei-Juli 2022), selama waktu tersebut tim abdimas memberikan pelatihan tentang pembuatan mi basah plain (umum/kontrol) dan diversifikasinya dengan air seduhan beluntas serta penanganan produk selama penyimpanan. Setelah pelatihan pada pertengahan bulan Juni- awal Juli IRT Dapure Indah sudah 2 kali memproduksi mi basah dan pada awal bulan Juli IRT Dapure Indah sudah membuat diversifikasi mi basah dengan air seduhan daun beluntas. Hasil penjualan mi plain dan mi beluntas meningkatkan kesukaan konsumen terhadap mi yang dijual berdasarkan kategori warna, rasa, aroma, tekstur dan kesukaan secara keseluruhan. Tingkat kesukaan konsumen terhadap mi plain maupun beluntas dalam kategori antara suka (skor 4) hingga sangat suka (skor 5), nilai kesukaan terhadap warna, rasa, aroma, tekstur dan keseluruhan untuk mi plain secara berturut-turut adalah sebagai berikut : 4,29; 4,36; 4,21; 4,29; 4,57, sedangkan mi beluntas secara berturut-turut 4,27; 4,47; 4,40; 4,27; 4,73. Konsumen lebih menyukai warna dan tekstur mi basah plain dibandingkan mi beluntas karena mempunyai warna putih kekuningan dan tidak mudah putus dan kenyal. Sedangkan tingkat kesukaan konsumen terhadap rasa, aroma dan keseluruhan untuk mi beluntas lebih tinggi dibandingkan mi plain karena gurih, beraroma daun/wangi, dan enak. Mi basah yang dihasilkan akan mempunyai shelf life lebih lama jika disimpan di freezer dibandingkan direfrigerator. Kata kunci: IRT Dapure Indah, ekonomi, mi basah, mi beluntas ABSTRACT IRT Dapure Indah is one of the home industries engaged in the sale of noodle dumplings. The raw material for wet noodles sold comes from a commercial noodle-making industry in the city of Surabaya. Therefore, this IRT sells noodle dumplings with a base price that really depends on the price of wet noodles purchased, thus affecting the number of noodle dumplings sold. So far, IRT Dapure Indah does not know how to produce wet noodles and how to diversify them. Pluchea is an herbal plant that has shown to have antioxidant and antidiabetic activity. The use of pluchea leaf tea steeping in the manufacture of pluchea noodles as diversification of wet noodles has never been introduced and commercialized. Therefore, it is necessary to provide training in the application of using pluchea leaf tea to enrich the functional value of wet noodles, in addition to providing training on how to make plain wet noodles (general/control) at IRT Dapure Indah. The purpose of this community service was to provide training to produce plain/general/control wet noodles and pluchea noodles as a diversification to improve the economy of IRT Dapure Indah. The community service activity took place at IRT Dapure Indah at the Green Semanggi Mangrove Housing Block G1-23 for 3 months (May-July 2022), during which time the community service team provided training on making plain wet noodles (general/control) and diversifying it with pluchea steeped water and product handling during storage. After training in mid-June-early July IRT Dapure Indah produced 2 wet noodles and in early July IRT Dapure Indah diversified wet noodles with water steeped in pluchea leaves. The sales of plain noodles and pluchea noodles increased consumer preference for noodles sold based on the categories of color, taste, aroma, texture, and overall preference. The level of consumer preference for plain and pluchea noodles in the category between like (score 4) to really like (score 5), the preference values ​​for color, taste, aroma, texture, and overall for plain noodles were as follows: 4.29; 4.36; 4.21; 4.29; 4.57, while the noodles pluchea were 4.27; 4.47; 4.40; 4.27; 4.73. Consumers prefered the color and texture of plain wet noodles to pluchea noodles because they have a yellowish-white color and were not easily broken and chewy. While the level of consumer preference for taste, aroma, and overall pluchea noodles was higher than plain noodles because it was savory, have a leafy aroma, and was delicious. The resulting wet noodles would have a longer shelf life if stored in the freezer than in the refrigerator. Keywords: IRT Dapure Indah, economy, wet noodles, pluchea noodles
Pelatihan dan Pendampingan Penentuan Kualitas Produk Mi Basah Pada IRT Dapure Indah, Wonorejo, Surabaya Widyawati, Paini Sri; Widjajaseputra, Anna Ingani; Ristiarini, Susana; Widyastuti, Theresia Endang widoeri
Jurnal Abdimas Kartika Wijayakusuma Vol 5 No 2 (2024): Jurnal Abdimas Kartika Wijayakusuma
Publisher : LPPM Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jakw.v5i2.409

Abstract

IRT Dapure Indah adalah IRT yang bergerak pada penjualan pangsit mi ayam dengan akun bisnis Dapure Indah Restoran yang berjualan secara online. Kontaminasi mi basah yang terjadi selama produksi menyebabkan perlu dilaksanakan pelatihan dan pendampingan bagi IRT Dapure Indah dengan menentukan kualitas produk mi basah yang dihasilkan berdasarkan pengujian fisikokimia dan sensoris. Produk mi basah yang diproduksi IRT Dapure Indah diamati perubahan kualitasnya pada penyimpanan 0, 4 dan 7 hari yang disimpan di refrigerator. Hasil menunjukkan bahwa mi basah di kondisi awal mempunyai kadar air 18,16% bb, Aw 0,981, lightness (L*) 82,8, redness (a*) 3,33, yellowness (b*) 12,5, chroma 12,5, Hue (oh) 74,47. Penyimpanan menurunkan kadar air, L*, oh, springiness, cohesiveness, tingkat kesukaan terhadap warna, aroma dan kenampakan. Sedangkan nilai Aw, a*, b*, C, hardness, gumminess, chewiness and resilience meningkat seiring lama penyimpanan. Mi basah produksi IRT Dapure Indah tidak lengket, tidak berlendir, kenyal, berwarna putih kekuningan, dan beraroma mi pada umumnya. Setelah penyimpanan, mi basah cenderung berwarna coklat, kering, dan beraroma asam, apek dan tengik. Oleh karena itu produksi mi basah oleh IRT Dapure Indah memerlukan bahan tambahan pangan (BTP) sebagai pengawet agar kualitasnya tetap terjaga, namun untuk mengetahui keefektifan BTP tersebut masih diperlukan pendampingan lebih lanjut.