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SIFAT FUNGSIONAL TEPUNG KORO KRATOK HITAM, MERAH DAN PUTIH (Phaseolus lunatus L.) DENGAN PERLAKUAN LAMA PERENDAMAN (Functional Properties of Black, Red and White Lima Bean (Phaseolus lunatus L.) Flour Produced under Different Soaking Time) Diniyah, Nurud; Windrati, Wiwik Siti; Maryanto, Maryanto
Jurnal Hasil Penelitian Industri Vol 28, No 2 (2015)
Publisher : Baristand Industri Banda Aceh

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Abstract

The aim of this research is to determine technical functional characteristics of the varietieslima bean seed flour (black, red, and white) with different treatment soaking time (12, 24 and 36 hour).Parameter of emulsion activity and stability, foam activity and stability, OHC (Oil Holding Capacity),WHC (Water Holding Capacity) and viscosity are investigated. The results showed that white lima beanseed flour with 12 hour soaking time have the highest emulsion activity and stability (164,28 m2/g; 4,39jam); foaming activity and stability, OHC and WHC of the varieties lima bean seed increased withincrease in soaking time. While, viscosity showed constant value for all varieties of lima bean seed flour.
Pengaruh Komposisi MOCAF (Modified Cassava Flour) dan Tepung Beras pada Karakteristik Beras Cerdas (Effect of Composition Mocaf (Modified Cassava Flour) and Rice Flour on Characteristics of Beras Cerdas) Subagio, Achmad; Windrati, Wiwik Siti
JURNAL PANGAN Vol 21, No 1 (2012): PANGAN
Publisher : Perum BULOG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.603 KB) | DOI: 10.33964/jp.v21i1.91

Abstract

Karakteristik Beras Cerdas sebagai produk yang menyerupai beras (beras analog) diteliti dengan menggunakan variasi komposisi bahan baku berupa MOCAF dan tepung beras. Beras Cerdas diproduksi dengan menggunakan teknologi ekstruksi dingin, dan hasilnya dikarakterisasi berdasarkan sifat kimia, fisik, dan organoleptiknya. Hasil penelitian menunjukkan bahwa semua formula Beras Cerdas mempunyai kadar air pada kisaran 9 persen (db) yang dapat menjamin daya simpan yang bagus. Kadar protein, lemak, abu dan karbohidrat Beras Cerdas dipengaruhi oleh formula perbandingan MOCAF dan tepung beras. Kadar protein cukup tinggi yaitu berkisar antara 7,2–9,7 persen. Sifat fisik beras cerdas yang meliputi derajat putih, daya kembang, bahan terdispersi, dandaya rehidrasi juga sangat dipengaruhi oleh formula perbandingan MOCAF dan tepung beras. Jika dibandingkan dengan beras biasa sebagai kontrol, nilai bahan terdispersi Beras Cerdas, tidak berbeda dengan beras (kontrol), yakni sebesar 6,23 persen ± 0,23. Uji kesukaan (preferensi) menunjukkan bahwa Beras Cerdas dengan MOCAF: tepung beras = 4:5 (formula B) mempunyai tingkat penerimaan keseluruhan yang terbaik (skor 3,44), dengan kelemahan pada rasa (skor 3,08).Characteristics of Beras Cerdas, the product resembles to ordinary rice (rice analog),are evaluated using the variation of raw material composition, i.e. MOCAF and rice flour. Beras Cerdas is produced by using cold extrusion technology. The product is then analyzed based on its physical, chemical, and sensory properties. The results show that all Beras Cerdas formulas have moisture content in the range of 9 percent (db) which ensures its best shelf life. Levels of protein, fat, ash and carbohydrates of Beras Cerdas are affected by the formula of MOCAF and rice flour, with a high protein content ranging from 7.2 to 9.7 percent. The physical properties of Beras Cerdas, which include the degree of whiteness, expansion power, the dispersed material, and the dehydration rate,are also greatly influenced by the ratio of MOCAF and rice flour. When the product is compared with the ordinary rice as a control, in terms of its dispersed material, it is found to be very similar to that of ordinary rice (control), i.e. in the order of 6.23 percents ± 0.23. Furthermore, the consumer preference test shows that Beras Cerdas with the ratio of MOCAF: rice flour = 4:5 (formula B) has the best overall acceptance rate (3.44), with the weakness in the taste (3.08). 
The Effect of Enzymatic Hydrolysis on The Properties of Protein Hydrolysate from Paddy Mushroom Palupi, Niken Widya; Windrati, Wiwik Siti; Tamtarini, Tamtarini
Makara Journal of Technology Vol. 14, No. 2
Publisher : UI Scholars Hub

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Abstract

Protein hydrolysate was prepared from Paddy (Volvariella volvaceae) mushroom. Hydrolysis uses commercially protease available Protamex ™ with enzyme concentration of 0.1% (w/w). Hydrolysis was performed at three different temperatures (room temperature, 40 °C, and 50 °C) with different incubation periods (60, 90, and 120 minutes). Enzyme inactivation was done in 90 °C for 3 minutes. Yield and degree of hydrolysis ranged from 94.76% to 99.55% and 19.06% to 24.59%. Protein solubility was about 89–11,8%. The longer time of hydrolysis, the darker the color of protein hydrolysate. Protein hydrolysate which has hydrolysis at 50 °C for 120 minutes has the highest protein yield and the best sensory properties: 4.76 (taste liking), 3.68 (aroma liking), and 4.56 (overall liking). However, this protein hydrolysate has the potential for application as an ingredient in formulated diets.