Dadang Supriatna
Balai Besar Industri Agro/BBIA (Center for Agro Base Industry/CABI), Ministry of Industry of Indonesia. JL. Ir. H. Juanda No. 11, Bogor

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Pengaruh Umur Simpan Whey dan Suhu Koagulasi terhadap Kadar Protein dan Tekstur Tahu (Effect of Whey Shelf Life and Coagulation Temperature on Protein Content and Texture of Tofu) Dadang Supriatna; Reno Fitri Hasrini; Dahrul Syah; Yogi Karsono
Warta Industri Hasil Pertanian Vol 37, No 2 (2020)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32765/wartaihp.v37i2.6386

Abstract

ABSTRAK : Tahu merupakan makanan tradisional bergizi tinggi yang disukai masyarakat. Hasil samping cair dari produksi tahu yang dikenal juga sebagai whey dapat digunakan kembali sebagai koagulan tahu. Pemanfaatan whey sebagai koagulan selain dapat mengurangi hasil samping juga lebih ekonomis. Tujuan penelitian ini adalah mempelajari pengaruh umur simpan koagulan whey tahu dan suhu koagulasi terhadap kadar protein dan tekstur tahu. Perlakuan penelitian ini adalah koagulan whey berumur simpan 1, 2 dan 3 hari serta suhu koagulasi 63 dan 83 °C. Setiap perlakuan dianalisis kandungan protein dan teksturnya yaitu kekerasan (hardness), kohesivitas, dan daya kunyah (chewiness). Hasil dari penelitian ini adalah suhu koagulasi 83 °C menghasilkan produk tahu dengan kadar protein yang lebih tinggi dan tekstur yang memiliki tingkat kekerasan (hardness), kohesivitas, dan daya kunyah (chewiness) lebih tinggi bila dibandingkan dengan suhu koagulasi 63 °C. Sedangkan whey dengan umur simpan 2 hari menghasilkan produk tahu dengan tekstur yang memiliki tingkat kekerasan (hardness), kohesivitas, dan daya kunyah (chewiness) lebih tinggi daripada whey dengan umur simpan 1 dan 3 hari. Namun untuk kadar protein pada produk tahu, semakin lama umur simpan whey, menyebabkan peningkatan kadar protein pada suhu koagulasi 63 °C dan penurunan pada suhu koagulasi 83 °C. Kata kunci: tahu, umur simpan whey, suhu koagulasi, kadar protein dan tekstur  ABSTRACT: Tofu is a highly nutricious traditional food which is preferred by the consumers society. By product of tofu processing which is known as whey, can be reused as tofu coagulant. Utilization of whey as a coagulant, beside can reduce the waste product, is also more economical on tofu processing. The purpose of this research was to study the effect of shelf life of whey coagulant and coagulation temperature on protein content and tofu texture. The treatments of this research were whey coagulant with shelf life of 1, 2 and 3 days and coagulation temperature of 63 and 83 ° C. Each treatment was analyzed for protein content and texture, namely hardness, cohesiveness, and chewiness. The results of this research showed that the treatment of 83 °C coagulation temperature, can produce tofu which have higher protein content and have a higher level of hardness, cohesiveness, and chewiness, compared its to the treatment of 63 ° C coagulation temperatures. Whereas whey with a shelf life of 2 days produces tofu products with textures that have a higher level of hardness, cohesiveness, and chewiness than whey with a shelf life of 1 and 3 days. But for protein content in tofu products, the longer shelf life of whey, causes an increase in protein levels at a temperature of 63 ° C coagulation and a decrease in temperature of 83 °C coagulation. Keywords: tofu, whey shelf life, coagulation temperature, protein content and texture
The Effect of VCO Processing Method on Blood Glucose, Cholesterol and Pancreatic Profile of Diabetic Mellitus Rats (Sprague Dawley) Dadang Supriatna; Amilia Dayatri Uray; Made Astawan; Deddy Muchtadi; Tutik Wresdiyati
Warta Industri Hasil Pertanian Vol 35, No 2 (2018)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (553.506 KB) | DOI: 10.32765/warta ihp.v35i2.3792

Abstract

Virgin Coconut Oil (VCO) can be produced by different methods  related to health function. The objective was to study the efficacy of VCO processing method in reducing blood glucose level, cholesterol profile and pancreatic tissue profile of diabetic mellitus (DM) Sprague dawley rats. Four rat groups from five rat groups were injected using alloxan to induce the diabetic condition, while the rest was negative control. VCO-A produced without heat and VCO-B produced with controlled-heat treatment and Coconut Cooking Oil (RBD-CNO) produced with the application of severe heating and chemical (MG) were fed respectively to three rat groups, while the other two rat groups were fed by water and used as negative control (healthy rats) and positive control (DM rats). During 28 days observation, all of the rats blood glucose level were assessed, and at the end of the observation day the rats were terminated to assess the cholesterol and pancreatic tissues profile. VCO-A significantly positive reduced blood glucose level than the others.  VCO did not influence DM rats cholesterol profile and all VCO inhibits the rate of pancreatic β cells damage. On 28 days observation all VCO treatments suppressed blood glucose level of DM rats.
Profil Koagulasi Protein Tahu Campuran Kacang Koro Pedang (Canavalia ensiformis DC) dengan Kacang Kedelai Dadang Supriatna; - Rienoviar; H. Guring Pohan; Enny Hawani Lubis; Mirna Isyanti
Warta Industri Hasil Pertanian Vol 36, No 2 (2019)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32765/warta ihp.v36i2.4774

Abstract

ABSTRAK: Pembuatan tahu menggunakan campuran kacang koro pedang dan kacang kedelai telah dilakukan.  Tahu dibuat melalui metode perendaman dengan air selama 3 jam, kemudian digiling, diperas, direbus dan digumpalkan menggunakan whey tahu atau sioko.  Tujuan dari penelitian adalah untuk mempelajari profil koagulasi protein tahu dari campuran kacang koro pedang dan kedelai.  Hasil penelitian menunjukkan bahwa, pencampuran kacang koro pedang sebagai pencampur kacang kedelai dapat digunakan sebanyak 10%. Profil koagulasi protein yang diekstrak dari semua perlakuan mempunyai profil SDS-PAGE dan pita yang hampir sama yang tergolong ke dalam asam polipeptida. Kata Kunci: kacang koro pedang, kedelai, profil koagulasi protein, tahu. ABSTRACT: Making tofu using a mixture of sword beans and soybeans has been done.  Tofu was made through a soaking method with water for 3 hours, then ground, squeezed, boiled and coagulated using whey tofu or sioko.  The aim of the study was to study the coagulation profile of protein tofu from a mixture of sword beans and soybeans.  The results showed that 10 % of sword bean can be mix   with soybean to produce good tofu. The coagulation profile of the extracted proteins from all treatments had almost the same SDS-PAGE profile and bands belonging to the polypeptide acid.   Keywords: protein coagulation profile, soybean, sword bean, tofu.