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Parboiling Duration Effects on Physical Properties of African Breadfruit Seed CIGR Journal
Obi, Okey Francis; Okechukwu, Michael Emeka.
Abstract Parboiling is a pre-dehulling operation and, the effect on the physical properties of African breadfruit seed (var. africana) was investigated. Freshly extracted seeds were parboiled for 0 (control), 5, 10, 15, and 20 minutes, and their physical properties determined. It was observed that parboiling time had a significant effect (p<0.05) on all the physical properties of African breadfruit seeds investigated. The moisture content of the seed ranged from 32.92±0.23 to 50.78±0.19 % (w.b.) as the parboiling time increased. Generally, it was observed that the mean values observed for the physical dimensions (axial dimensions, mean diameters,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: African breadfruit; Parboiling time; Physical properties; Frictional properties.
Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4918
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Two Temperature Hot Water Soaking for Increasing Efficiency of Paddy Parboiling Process CIGR Journal
Gunathilake, Champathi Chaminda.
Soaking of paddy (rough rice) is the most time-consuming operation in the paddy parboiling process. A Hot water soaking in two temperatures of paddy parboiling has developed based on the gelatinization temperature of rice starch to achieve rapid completion of absorption of water into the rice kernel. This study was conducted to eliminate the steaming process in paddy parboiling without loosening the parboiled rice qualities such as less broken grain percentage, high head rice yield percentage and kernel hardness. Treatments also caused to improve kernel whiteness and palatability characteristic of rice. BG 358 rice variety (short grain rice) was used for...
Tipo: Info:eu-repo/semantics/article
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5003
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Willingness to Pay for Enhanced Food Quality: Rice Parboiling in Benin AgEcon
Demont, Matty; Zossou, Esperance; Rutsaert, Pieter; Ndour, Maimouna; Mele, Paul Van; Verbeke, Wim.
In Benin, traditional parboiling is still widely practiced among rice processors, resulting in inferior grain quality. A new parboiler was introduced to improve the milling yield and quality of local rice. We conducted Vickrey second price auctions followed by a consensus session to elicit rural Beninese consumers’ willingness to pay for rice obtained through the new parboiler and two locally innovated parboilers. Relative to traditionally parboiled rice, consumers were willing to pay price premiums of 9–13% for rice obtained through a local parboiler using a container of which the bottom is a perforated metal, 27% for rice obtained through a local parboiler using wooden sticks at the bottom of the pot, and 25–34% for rice...
Tipo: Conference Paper or Presentation Palavras-chave: Sub-Saharan Africa; Food processing; Experimental auction; Food quality; Food Consumption/Nutrition/Food Safety.
Ano: 2011 URL: http://purl.umn.edu/114443
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Predictive Models for Head Rice Yield and Breakage Ratio Under Optimal Steam Parboiling Variables for Faro 44 Rice Variety CIGR Journal
Nwajinka, Charles Obiora; Muochebe, Bonaventure; Nwatu, Ernest Ifeanyichukwu.
This study was carried out to determine the optimal conditions for steam parboiling process for increased Head Rice Yield (HRY) and reduced Breakage Ratio (BR)of milled FARO-44 rice variety. The process variables studied were  Soaking Temperature (SkT), soaking time (Skt) and Steaming time (STt). The SkT was varied between 70 oC and 90 oC, Skt between 40 and 50 mins while STt was varied between 8 to 12hrs. Head Rice Yield (HRY) and Breakage Ratio(BR) were selected as the quality attributs considered in the optimization as the response variables. The objective of the optimization was to determine the combination of factors that will maximize HRY and minimize BR. At the composite desirability of 0.683, the optimal values of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: FARO-44; Rice; Head rice; Breakage ratio; Parboiling; Modeling.
Ano: 2022 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6881
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Cooking Qualities of Parboiled Little Millet and Proso Millet: Effect of Soaking and Steaming CIGR Journal
Rangaraju, Visvanathan; Balkrishna, Patil Sagar.
Parboiling of little millet (Panicum sumatrense) and proso millet (Panicum miliaceum) was carried out by soaking at different soaking temperatures (30, 40, 50, 60 and 70°C) and durations of steaming (10, 15, 20, 25 and 30 min). The parboiled millet grains were shade dried and pearled in a laboratory scale pearler cum polisher. Parboiling of these millets was assessed for the cooking qualities, in terms of cooking time, water uptake, swelling index and elongation ratio.  Parboiled little millet took 9 - 14 min for cooking with water uptake ratio of 3.3 - 4.7 and showed swelling index and elongation ratio ranging from 1.73 - 2.74 and 1.69 - 2.61, respectively. For proso millet cooking time...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Keywords; Little millet; Proso millet; Parboiling; Cooking qualities; Cooking time; Water uptake; Swelling index; Elongation index..
Ano: 2024 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7159
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RICE PARBOILING WASTEWATER IN THE MAXIMIZATION OF CAROTENOIDS BIOPRODUCTION BY Phaffia rhodozyma Ciência e Agrotecnologia
Rios,Danielle Alves da Silva; Borba,Thais de Matos de; Kalil,Susana Juliano; Burkert,Janaína Fernandes de Medeiros.
The interest in carotenoid production from natural sources has increased based in their possible use as dyes and their powerful biological antioxidant capacity. This study evaluated the use of rice parboiling wastewater (RPW) as an alternative substrate for the bioproduction of carotenoids using the yeast Phaffia rhodozyma and found it to be promising as the only source of nutrients, reaching a concentration of 0.6 μg mL-1 (259.1 μg g-1) in 48 h. To increase the potential use of this industrial effluent, a study of supplementation was carried out to enhance the production of carotenoids using the methodology of experimental design (a 2IV 6-2 fractional factorial design sequenced by a 24 central composite design). The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodye; Submerged cultive; Response surface methodology; Yeast.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000400401
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Humic Substances and Chemical Properties of an Acrisol Amended with Vermicomposted Vegetal and Animal Residues Rev. Bras. Ciênc. Solo
Antunes,Rul Martins; Leal,Otávio dos Anjos; Castilhos,Rosa Maria Vargas; Castilhos,Danilo Dufech; Andreazza,Robson; Schwalbert,Raí Augusto.
ABSTRACT Vermicomposted vegetal and animal residues are rich in nutrients and humic substances and thus can be applied to the soil as a source of functionalized organic matter (OM) and as an alternative to chemical fertilizers. In Southern Brazil, many animal and vegetal residues are easily accessible. Therefore, this study aimed to evaluate alterations in soil chemical properties and OM chemical composition in response to the application of local vermicomposted residues. The vermicomposts of: cattle manure (CM), sheep manure (SM), rice parboiling sludge (PS), CM+PS; SM+PS; CM+food waste (FW); SM+FW; CM+fruit waste (FRW); and SM+FRW were mixed with Acrisol (Argissolo) samples collected at 0.00-0.20 m layer, and the samples...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Incubation; Infrared spectroscopy; Elemental analysis; Polarity index.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100403
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การศึกษาความสัมพันธ์ระหว่างลักษณะปรากฏ สมบัติเชิงเคมี-กายภาพและสมบัติการหุงต้มของเมล็ดข้าวโดยการวิเคราะห์ภาพ Thai Agricultural
Maturada Jinoros; Somkiat Prachayawarakorn; Somchai Soponronnarit.
After harvesting paddy needs to pass through several processing steps before edible grain kernels are obtained. These processes inevitably affect the kernel quality, both in terms of the physical physicochemical and cooking properties. A number of techniques have thus been proposed to evaluate the various quality attributes of rice kernels. Image analysis is one of the promising techniques for analysis of rice kernel appearances with fast and accurate results. Image-analysis results may also be related to the physicochemical and cooking properties of the kernels. This research explored possible relationships between appearances obtained via image analysis and selected physicochemical and cooking properties of rice kernels. In addition to the basic apparent...
Tipo: PhysicalObject Palavras-chave: Amylose content; Hardness; Parboiled rice; Translucency; Water uptake; Cooking quality; ปริมาณแอมิโลส; ความแข็ง; ข้าวนึ่ง; ความโปร่งแสง; การดูดน้ำ; คุณภาพการหุงต้ม.
Ano: 2012 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5438
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Rice Husk Energy Technologies in Bangladesh CIGR Journal
M. Ahiduzzaman.
Bangladesh is an agriculture based country and the major food comes from rice. The rice plant also produces a significant amount of byproduct which is used as energy. The production of rice husk is steady and increasing in trend in Bangladesh. This biomass energy is playing a significant role in the country energy use. This study was conducted to focus on the improvement of rice husk energy and constraints for technologies dissemination in Bangladesh. The performances of the rice husk energy technologies were studied. The benefits of the use of rice husk energy technologies were analyzed and the constraints to its dissemination were found out during this study. The main consumer of the rice husk energy is the rice milling sector. About 70% of rice husk...
Ano: 1969 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/956
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