scholarly journals Extrusion cooking of immature rice grain: under-utilized by-product of rice milling process

2020 ◽  
Vol 57 (8) ◽  
pp. 2905-2915
Author(s):  
Barış Burak Albayrak ◽  
Necati Barış Tuncel ◽  
Neşe Yılmaz Tuncel ◽  
Mustafa Tuğrul Masatcıoğlu
Keyword(s):  
Milling Process ◽  
Extrusion Cooking ◽  
Rice Grain ◽  
Rice Milling

scholarly journals Biological Functions and Activities of Rice Bran as a Functional Ingredient: A Review

2021 ◽  
Vol 14 ◽  
pp. 117863882110585
Author(s):  
Suwimol Sapwarobol ◽  
Weeraya Saphyakhajorn ◽  
Junaida Astina
Keyword(s):  
Health Effects ◽  
Rice Bran ◽  
Animal Feed ◽  
Health Benefits ◽  
Bowel Function ◽  
Milling Process ◽  
Lipid Lowering ◽  
Aleurone Layer ◽  
Rice Milling ◽  
Functional Components

Rice bran (RB) is a nutrient-rich by-product of the rice milling process. It consists of pericarp, seed coat, nucellus, and aleurone layer. RB is a rich source of a protein, fat, dietary fibers, vitamins, minerals, and phytochemicals (mainly oryzanols and tocopherols), and is currently mostly used as animal feed. Various studies have revealed the beneficial health effects of RB, which result from its functional components including dietary fiber, rice bran protein, and gamma-oryzanol. The health effects of RB including antidiabetic, lipid-lowering, hypotensive, antioxidant, and anti-inflammatory effects, while its consumption also improves bowel function. These health benefits have drawn increasing attention to RB in food applications and as a nutraceutical product to mitigate metabolic risk factors in humans. This review therefore focuses on RB and its health benefits.

scholarly journals Kinerja Rantai Pasok, Dinamika, dan Pembentukan Harga Beras di Jawa Tengah

2019 ◽  
Vol 17 (1) ◽  
pp. 39
Author(s):  
NFN Saptana ◽  
Erma Suryani ◽  
Emmy Darmawati
Keyword(s):  
Supply Chain ◽  
Conversion Rate ◽  
Milling Process ◽  
Rice Production ◽  
Production Performance ◽  
Central Java ◽  
Rain Season ◽  
Rice Price ◽  
Rice Prices ◽  
Rice Milling

<p>Rice supply chain from producers to consumers in Central Java Province is relatively extensive and it affects rice price establishment. This study aimed to assess rice production performance, dried paddy (GKG) conversion rate into rice, rice supply chain, dynamics of rice prices among seasons and markets, and rice price establishment. This research was conducted in 2018 in rice producing centers in Central Java, namely Sragen, Klaten and Demak Regencies. This province had a rice production surplus and it was marketed mostly to West Java and Jakarta provinces. Conversion rate from paddy to rice varies between 60-65% or an average of 62.74% depending on varieties grown, drying process, and harvesting machine condition. In general, there are six to seven actors in the rice supply chain. During the main harvest in rainy season, paddy and rice prices usually dropped due to abundant supply. However, during the harvest in rain season in 2017/2018, paddy and rice prices remained high. This case indicated that paddy and rice prices establishment were more determined by supply side. It can be concluded that shorten the rice supply chain will increase paddy price at farm level and reduce rice price at consumer level. To shorten the rice supply chain effectively, it is recommended that rice milling process to be done at the milling industry.</p><p> </p><p>Abstrak</p><p>Rantai pasok beras di Jawa Tengah dari tingkat produsen hingga konsumen masih cukup panjang. Kondisi ini berpengaruh pada pembentukan harga beras. Tujuan penelitian adalah untuk mengkaji kinerja produksi padi, besaran rendemen gabah kering giling (GKG) menjadi beras, kinerja rantai pasok gabah dan beras, dinamika harga beras antar musim dan pasar, dan pembentukan harga beras pada setiap tingkatan pelaku rantai pasok beras. Penelitian dilakukan tahun 2018 di lokasi sentra produksi padi Provinsi Jawa Tengah yaitu Kabupaten Sragen, Klaten, dan Demak. Hasil kajian menunjukkan provinsi ini menghasilkan surplus beras yang dipasarkan terutama ke Jawa Barat dan Jakarta. Tingkat rendemen GKG menjadi beras bervariasi antara 60-65% atau rata-rata 62,74% tergantung varietas, proses pengeringan, dan kondisi mesin panen. Rantai pasok beras cukup panjang, sebanyak enam sampai tujuh pelaku. Sesuai pola yang umum dikenal, pada musim panen raya pada musim hujan (MH) harga gabah dan beras turun, namun pada musim panen raya MH 2017/2018 harga pangan ini tetap tinggi. Hal ini disebabkan pembentukan harga gabah dan beras lebih ditentukan oleh aspek pasokan dibandingkan aspek permintaan. Dari hasil penelitian ini disimpulkan pemangkasan rantai pasok gabah dan beras dari petani produsen ke konsumen dapat meningkatkan harga gabah di tingkat petani dan menurunkan harga beras di tingkat konsumen. Agar upaya pemotongan rantai pasok berjalan efektif, maka penggilingan gabah menjadi beras sebaiknya dilakukan di industri penggilingan padi.</p>

scholarly journals Enrichment of soybean dietary fiber and protein fortified rice grain by dry flour extrusion cooking: the physicochemical, pasting, taste, palatability, cooking and starch digestibility properties

RSC Advances ◽  
2018 ◽  
Vol 8 (47) ◽  
pp. 26682-26690 ◽  
Author(s):  
Xia Liu ◽  
Jiafeng Zhao ◽  
Xin Zhang ◽  
Yuan Li ◽  
Juan Zhao ◽  
...  
Keyword(s):  
Dietary Fiber ◽  
Chronic Conditions ◽  
Starch Digestibility ◽  
Extrusion Cooking ◽  
Rice Grain

With the prevalence of chronic conditions in patients due to a dietary imbalance, the demand for inexpensive, nutritious and high dietary fiber extruded rice is increasing rapidly.

scholarly journals KINETIKA REAKSI ENZIMATIS EKSTRAK KASAR ENZIM SELULASE BAKTERI SELULOLITIK HASIL ISOLASI DARI BEKATUL

ALCHEMY ◽  
2013 ◽  
Author(s):  
Dyah Ayu Saropah ◽  
Akyunul Jannah ◽  
Anik Maunatin
Keyword(s):  
Rice Bran ◽  
Enzymatic Reaction ◽  
Milling Process ◽  
Cellulolytic Enzyme ◽  
Cellulose Content ◽  
Optimum Conditions ◽  
Cellulolytic Bacteria ◽  
Cellulase Enzymes ◽  
Rice Milling

<p>Bran rice is a by-product of rice into rice milling process, the cellulose content of 40-60%, so the potential as a carbon source for the growth of microorganisms such as bacteria to produce enzymes particularly cellulolytic bacteria. The purpose of the study was to determine the diversity of the characters from the cellulolytic bacterial isolates and optimum conditions enzyme (cellulase enzymes rough) so that they can hydrolyze the cellulose to glucose with either rice bran. The characterization includes the determination of pH, temperature and time of optimum crude extract of bacterial cellulolytic enzyme cellulase, determination of Vmax and Km and molecular mass determination of cellulase.</p><p>Research methods include making media, regeneration of isolates, bacterial growth curve manufacturing, production of cellulase enzymes from bacterial cellulolytic rough at the optimum conditions, the kinetics of enzymatic reaction: substrate concentration factor of the reaction rate (with variation of the concentration of 0.50%, 0.75%, 1 , 00%, 1.25% and 1.50% (w / v)) followed by calculating the Vmax and Km.</p><p>The results showed that the enzyme cellulase of cellulolytic bacteria isolated from rice bran result that has optimum conditions at pH 7.5, temperature 50 ° C, 40 min incubation time to produce Vmax 0.0086 units / mL and Km 1.694%.</p>

scholarly journals Perancangan mesin penghancur sekam padi dengan poros penggerak horisontal

2019 ◽  
Vol 14 (2) ◽  
pp. 37
Author(s):  
Ahmad Suudi ◽  
Novri Tanti ◽  
Jamiatul Akmal ◽  
Zulhendri Hasymi ◽  
Prasetyo Budiyanto
Keyword(s):  
Rice Husk ◽  
Gasoline Engine ◽  
Agricultural Research ◽  
Production Capacity ◽  
Milling Process ◽  
Screw Conveyor ◽  
Milled Rice ◽  
Rice Milling ◽  
Grinding Machine ◽  
Belt Transmission

Husk is a waste from the grinding process with the characteristics of a hard, scaly and dry layer. In the rice milling process, according to the Agricultural Research and Development Agency, the Department of Agriculture obtained 20-30% of rice husk, 8-12% of bran and 50 - 63.5% of milled rice. It can be seen that the amount of waste produced is predominantly dominated by rice husk and if not handled it will be a problem for the environment. One effort to reduce the form of waste was carried out research design of rice husk grinding machine become powder. The implementation method starts with designing, manufacturing and testing. The design of the grinding machine is planned to use a fuel motor drive, the transmission uses a V belt and the type of grinder is a combination of discmill and hammermill.The results of research and design obtained rice husk grinding machine with specifications dimensions of 1100 mm high, 400 mm long and 500 mm wide, Hyundai gasoline engine drive HDE 390 with power 7.6 kW, elbow profile frame 50 mm x 50 mm, belt transmission and pulley with a ratio of 1: 1, a combination milling mechanism namely hammer mills which have 3 single hammer attrition mills and a front through grinder with the help of screw conveyor components. The test results of the grinding machine capacity obtained a production capacity of 10 kg / hour, and fuel consumption which is 2.162 liters / hour.

scholarly journals Azoxystrobin Rate and Timing Effects on Rice Sheath Blight Incidence and Severity and Rice Grain and Milling Yields

Plant Disease ◽  
2005 ◽  
Vol 89 (11) ◽  
pp. 1171-1174 ◽  
Author(s):  
D. E. Groth
Keyword(s):  
Sheath Blight ◽  
Growth Stages ◽  
Rice Grain ◽  
Fungicide Application ◽  
Head Rice ◽  
Resistant Varieties ◽  
Timing Effects ◽  
Rice Milling ◽  
Milling Yield ◽  
Field Plots

Lack of sheath blight resistant varieties requires rice (Oryza sativa) farmers to use fungicides to avoid significant reductions in grain yield and milling yield. Studies were conducted to determine the best rate and rice growth stage for a single application of azoxystrobin, a fungicide recently labeled for this use, to effectively control sheath blight. Azoxystrobin was applied foliarly to inoculated field plots in 2000 to 2002 using rates of 0.22, 0.17, and 0.11 kg a.i. ha -1 at 7 days after panicle differentiation (PD+7), boot (B), and heading (H) growth stages and at 0.17 kg a.i. ha-1 at 5, 10, and 15 days after heading. Sheath blight severity (measured on a 0 to 9 scale) and incidence (percent tillers infected) were assessed 1 to 2 weeks before harvest. A fungicide application made between PD+7 and H significantly reduced sheath blight severity, which resulted in significantly higher yield and head rice milling yield compared with inoculated unsprayed plots. There were no significant effects of fungicide rate at the PD+7, B, and H growth stages. Fungicide-treated plots had yield and milling yield similar to the very lightly diseased, uninoculated check plots included for comparison. With fungicide application made postheading, rice had higher disease severity, resulting in lower yields and milling yield compared with rice receiving earlier applications.

scholarly journals Azoxystrobin Rate and Timing Effects on Rice Head Blast Incidence and Rice Grain and Milling Yields

Plant Disease ◽  
2006 ◽  
Vol 90 (8) ◽  
pp. 1055-1058 ◽  
Author(s):  
D. E. Groth
Keyword(s):  
Disease Incidence ◽  
Pressure Head ◽  
Growth Stages ◽  
Rice Grain ◽  
Blast Pressure ◽  
Head Rice ◽  
Timing Effects ◽  
Rice Milling ◽  
Disease Pressure ◽  
Field Plots

Growing blast susceptible rice (Oryza sativa) cultivars often requires farmers to use fungicides to prevent significant reductions in rice grain and milling yields. Studies were conducted to determine the optimum rate and rice growth stage for single or multiple applications of azoxystrobin to control blast (Pyricularia grisea). Azoxystrobin was applied foliarly to naturally infected field plots in 2001 to 2005 at rates of 0.11, 0.17, and 0.22 kg a.i. ha-1 at boot (B) and heading (H) or only at H growth stages, and at 0.17 kg a.i. ha-1 at 5 (H+5), 10 (H+10), and 15 (H+15) days after H and B with low or high blast pressure. Head blast incidence (percent heads infected) was assessed 1 to 2 weeks before harvest. A fungicide application made at H, H+5, and B+H significantly reduced blast incidence with high and low disease pressure, resulting in significantly higher grain and head rice milling yields compared with unsprayed plots with high blast pressure. There were no significant effects of fungicide rate on blast development or yield following the H, B+H, and H+5 applications. With fungicide applications made at B, H+10, and H+15 days postheading, rice had higher disease incidence, resulting in lower grain and milling yields compared with rice receiving a heading application.

Effect of hydrocolloids on physicochemical, sensory and textural properties of reconstructed rice grain by extrusion cooking technology

2018 ◽  
Vol 12 (3) ◽  
pp. 1622-1632 ◽  
Author(s):  
Sara Ranjbar ◽  
Alireza Basiri ◽  
Amir Hosein Elhamirad ◽  
Akram Sharifi ◽  
Hossein Ahmadi Chenarbon
Keyword(s):  
Textural Properties ◽  
Extrusion Cooking ◽  
Rice Grain

scholarly journals Pozzolanic Reaction Mechanism of Rice Husk Ash in Concrete – A Review

2015 ◽  
Vol 773-774 ◽  
pp. 1143-1147 ◽  
Author(s):  
Siti Asmahani Saad ◽  
Mohd Fadhil Nuruddin ◽  
Nasir Shafiq ◽  
Maisarah Ali
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Agricultural Waste ◽  
Concrete Strength ◽  
Short Review ◽  
Pozzolanic Reaction ◽  
Milling Process ◽  
Strength Development ◽  
Pulverized Fuel ◽  
Rice Milling

Recently, incorporation of cement replacement material (CRM) in concrete has gained considerable attention throughout the world. It is known that the commonly used CRM in current concrete industry is silica fume (SF), pulverized fuel ash (PFA) and rice husk ash (RHA). RHA is an agricultural waste from rice milling process. Rice farming activities is one of the main crops planted in Malaysia and therefore, the rice husk abundantly generated every year. RHA exhibits positive pozzolanic reaction during concrete strength development. The material contains amorphous silica and hence it contributed towards enhancement of various concrete properties. This paper presents a short review of RHA properties as CRM and pozzolanic reaction determination.

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