Evaluation of Quality of Rice Grains by Photoacoustic Imaging

2005 ◽  
Vol 44 (6B) ◽  
pp. 4480-4481 ◽  
Author(s):  
Manabu Suzuki ◽  
Katsuhiko Miyamoto ◽  
Tsutomu Hoshimiya
Keyword(s):  
Photoacoustic Imaging ◽  
Rice Grains

scholarly journals Etude de l’effet de Cercospora oryzae Miyake sur la qualite des grains du riz et le developpement de la ternissure

2020 ◽  
Vol 14 (2) ◽  
pp. 440-451
Author(s):  
Hervé B. Soura ◽  
Simplice L. Gnancadja-Andre ◽  
Martine Zandjanakou-Tachin ◽  
Christophe Gandonou ◽  
Farid A.K. Baba-Moussa
Keyword(s):  
Germination Rate ◽  
Research Work ◽  
Detailed Knowledge ◽  
Large Contribution ◽  
Mots Clés ◽  
Rice Grains ◽  
Teneur En Eau ◽  
Agroecological Zones ◽  
Conservation Marketing

La cercosporiose due à Cercospora oryzae est un champignon pouvant causer des pertes allant jusqu'à 60%. Elle est de plus en plus fréquente en Afrique de l'Ouest. Les premières prospections réalisées au sud du Bénin ont indiqué que Cercospora oryzae a une contribution large puisqu’elle a affectée 85% des champs de riz des trois zones agroécologiques du sud Bénin. Cette étude vise principalement à contribuer à la connaissance détaillée des effets de Cercospora oryzae sur les grains afin d’optimiser la conservation, la commercialisation et la production. Elle a consistée a : i) évaluer les effets de Cercospora oryzae sur le pouvoir germinatif des grains, ii) évaluer les effets de Cercospora oryzae sur le développement de la ternissure. L’étude a combiné des outils physiologiques et phytiatriques. Au terme des travaux, les variétés testées ont enregistré une bonne teneur en eau pour un minimum de 6%, ainsi qu’un bon taux de germination. A la fin de l’étude nous avons pu constater que Cerocpora oryzae entrainait une baisse du pouvoir germinatif des grains, une altération de la graine blanche et une décoloration de l’enveloppe. Ces résultats constituent une étape d’un travail de recherche approfondi sur la caractérisation (agronomique et génétique) de Cercospora oryzae afin de proposer des méthodes de luttes. Mots clés : Pouvoir germinatif, décoloration, altération, Cercospora oryzae, riz.   English Title: Study of the effect of Cercospora oryzae Miyake on the quality of rice grains and the development of tarnishSigatoka caused by Cercospora oryzae is a fungus that can cause losses up to 60%. It is more and more frequent in West Africa. The first surveys carried out in the south of Benin indicated that Cercospora oryzae has a large contribution since affected 85% of the rice fields of the three agroecological zones of southern Benin. The main objective of this study is to contribute to detailed knowledge of the effects of Cercospora oryzae on grains in order to optimize conservation, marketing and production. It consisted in: i) evaluating the effects of Cercospora oryzae on the germination power of the grains, ii) evaluating the effects of Cercospora oryzae on the development of tarnish. The study combined physiological and phytiatric tools. At the end of the work, the varieties tested recorded a good water content for a minimum of 6%, as well as a good germination rate. At the end of the study we could see that Cerocpora oryzae did not cause a drop in the germinative power of the grains but rather resulted in an alteration of the white seed and a discoloration of the envelope. These results constitute a stage of an in-depth research work on the characterization (agronomic and genetic) of Cercospora oryzae in order to propose methods of struggle.Keywords: Germination, discoloration, deterioration, Cercospora oryzae, rice.  

scholarly journals Biomedical Photoacoustic Imaging Optimization with Deconvolution and EMD Reconstruction

2018 ◽  
Vol 8 (11) ◽  
pp. 2113 ◽  
Author(s):  
Chengwen Guo ◽  
Yingna Chen ◽  
Jie Yuan ◽  
Yunhao Zhu ◽  
Qian Cheng ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Empirical Mode Decomposition ◽  
Photoacoustic Imaging ◽  
Optimization Method ◽  
Positive Polarity ◽  
Image Optimization ◽  
Mode Decomposition ◽  
Phantom Studies ◽  
Micro Structures

A photoacoustic (PA) signal of an ideal optical absorbing particle is a single N-shape wave. PA signals are a combination of several individual N-shape waves. However, the N-shape wave basis leads to aliasing between adjacent micro-structures, which deteriorates the quality of final PA images. In this paper, we propose an image optimization method by processing raw PA signals with deconvolution and empirical mode decomposition (EMD). During the deconvolution procedure, the raw PA signals are de-convolved with a system dependent deconvolution kernel, which is measured in advance. EMD is subsequently adopted to further process the PA signals adaptively with two restrictive conditions: positive polarity and spectrum consistency. With this method, signal aliasing is alleviated, and the micro-structures and detail information, previously buried in the reconstructing images, can now be revealed. To validate our proposed method, numerical simulations and phantom studies are implemented, and reconstructed images are used for illustration.

scholarly journals Rice Quality Analysis and Classification Using Image Processing Techniques

2021 ◽  
Vol 10 (6) ◽  
pp. 79-82
Author(s):  
Vijay Sonawane ◽  
Nikhil Gaikwad ◽  
Hrushikesh Mandekar ◽  
Kishore Baradkar ◽  
Chetan Gunjal
Keyword(s):  
Image Processing ◽  
Quality Analysis ◽  
World Population ◽  
Rice Grain ◽  
Rice Grains ◽  
Unique Shape ◽  
Good For ◽  
Phosphorus And Potassium ◽  
Processing Techniques

More than half the world's people consume rice every day and fulfills over 21% calorific requirement of world population. It is considered the whole grain which is rich in fiber and it contains 80 percent with protein, phosphorus, and potassium. There are hundreds of different varieties of rice and each rice grain has a unique shape, texture, and flavor that make it just right for certain dishes. The quality of rice between various types has different standards. Therefore, you must select the best quality rice because rice with best quality is not only good for consumption but also good for health. Analyzing grain sample manually is a tedious task and also time consuming. The paper presents the solution to analysis and grading of rice grains using image processing techniques. Image reduction, image enhancement, and image increment, object recognition in spatial domain is applied on grain by grain of different samples of rice to determine its size, color and quality as whole to grade the grain of rice. We find the endpoints of each grains and after we measure the length and breadth of rice grains.

scholarly journals EFFECT OF HULLING MACHINES ON HULLING CHARACTERISTICS AND QUALITY OF RICE GRAINS

2018 ◽  
Vol 35 (1) ◽  
pp. 259-274
Author(s):  
Mohamed Yehia ◽  
A. Katab
Keyword(s):  
Rice Grains

scholarly journals QUALIDADE INDUSTRIAL DE GRÃOS DE ARROZ DECORRENTE DA SUPRESSÃO DA IRRIGAÇÃO E UMIDADE DE COLHEITA

Irriga ◽  
2015 ◽  
Vol 20 (3) ◽  
pp. 587-601 ◽  
Author(s):  
GUILHERME PILAR LONDERO ◽  
Enio Marchesan ◽  
Evandro Parisotto ◽  
Lucas Lopes Coelho ◽  
Camille Flores Soares ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Moisture Content ◽  
Rio Grande ◽  
Rio Grande Do Sul ◽  
Irrigated Rice ◽  
Milling Quality ◽  
Rice Grains ◽  
Santa Maria ◽  
E Mail

QUALIDADE INDUSTRIAL DE GRÃOS DE ARROZ DECORRENTE DA SUPRESSÃO DA IRRIGAÇÃO E UMIDADE DE COLHEITA  GUILHERME PILAR LONDERO¹; ENIO MARCHESAN²; EVANDRO PARISOTTO³; LUCAS LOPES COELHO4, BRUNO BEHENCK ARAMBURU4; CAMILLE SOARES FLORES4 E ANELISE LENCINA DA SILVA4 1 Mestrando do Programa de Pós-Graduação em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: [email protected];2 Professor Titular do Departamento de Fitotecnia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: [email protected];3 Desenvolvimento de Mercado, Ricetec Sementes Ltda., Rua 18 de novembro nº 341, 90240-040, Porto Alegre/RS, e-mail: [email protected]. 4 Graduando em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mails: [email protected]; [email protected]; [email protected]; [email protected].  1           RESUMO A qualidade dos grãos do arroz irrigado é fator fundamental para sua comercialização. Neste sentido, objetivou-se avaliar, com a realização do presente estudo, a qualidade industrial de grãos de dois cultivares de arroz irrigado em função de épocas de supressão da irrigação e graus de umidade à colheita. O experimento foi realizado nas safras 2011/12 e 2012/13 na área didático experimental de várzea da Universidade Federal de Santa Maria, Rio Grande do Sul. Os tratamentos foram compostos de: dois cultivares: o híbrido INOV CL e o cultivar Puitá INTA CL; quatro épocas de supressão da irrigação: 5, 15, 25 e 35 dias após a antese (DAA); e cinco graus de umidade média dos grãos na colheita: 24, 22, 20, 18 e 16%. O delineamento experimental foi de blocos ao acaso com quatro repetições por tratamento. O cultivar Puitá INTA CL apresenta superior qualidade em relação a grãos inteiros, vítreos, gessados e opacos ao híbrido INOV CL. A umidade adequada dos grãos à colheita para ambos cultivares ocorre no intervalo de 24 a 20%. A supressão de irrigação não interfere na qualidade de grãos inteiros, vítreos, opacos e gessados. Palavras-Chave: beneficiamento; grão inteiro; grão gessado; grão opaco; Oryza sativa L.  LONDERO, G. P.¹; MARCHESAN, E.²; PARISOTTO, E.³; COELHO, L. L.4; ARAMBURU, B. B.4; FLORES, C. S.4; da SILVA, A. L. 4INDUSTRIAL QUALITY OF RICE GRAINS ARISING FROM THE WITHHOLDING OF IRRIGATION AND HARVEST MOISTURE  2           ABSTRACT Quality of irrigated rice grains is critical for their marketing. In this context, the study aimed to evaluate the industrial quality of two irrigated rice cultivars as a function of two times of irrigation withholding,   and moisture content at harvest.  The experiment was conducted during the 2011/12 and 2012/13 seasons in the experimental floodplain of the Federal University of Santa Maria, Rio Grande do Sul state, Brazil. The treatments consisted of  two cultivars:   hybrid INOV CL and  Puitá INTA CL ; four irrigation withholding times:  5, 15, 25 and 35 days after anthesis (DAA); and five levels of mean grain moisture   at harvest; 24, 22, 20, 18 and 16 %. The experimental design was randomized blocks with four replicates per treatment.   The cv. Puitá INTA CL  presented higher quality concerning milling, translucency, opacity and chalky grains than the cv. hybrid INOV CL.  Suitable moisture content of grains at harvest for both cultivars is at the range of 24 to 20%.  Irrigation withholding did not affect milling quality, translucency, opacity and chalky grains. Keywords: Processing, milling quality, chalky grain, opacity, Oryza sativa. 

scholarly journals On the Temporary Storage of High-Moisture Rough Rice : II. Effect of harvesting dates on the quality of rough rice grains during the storage

1969 ◽  
Vol 38 (3) ◽  
pp. 402-407
Author(s):  
Norimitsu ISIKURA ◽  
Yoichiro MASUO ◽  
Isao ENDO ◽  
Shinjiro CHIKUBU
Keyword(s):  
High Moisture ◽  
Rice Grains ◽  
Temporary Storage ◽  
Rough Rice

scholarly journals Ozone as fungicide in rice grains

2016 ◽  
Vol 20 (3) ◽  
pp. 230-235 ◽  
Author(s):  
Raquel R. Santos ◽  
Lêda R. D. Faroni ◽  
Paulo R. Cecon ◽  
Ana P. S. Ferreira ◽  
Olinto L. Pereira
Keyword(s):  
Filamentous Fungi ◽  
Continuous Flow ◽  
Nutritional Quality ◽  
Industrial Process ◽  
Saturation Time ◽  
Gas Concentration ◽  
Rice Grains ◽  
Fungistatic Activity ◽  
Penicillium Spp

ABSTRACT The fungistatic activity, especially during storage, can lead to rapid deterioration in the nutritional quality of grains, and reduce their use and disposal in industrial process due to contamination with toxins (aflatoxins and others). Among the technologies identified as promising in controlling these microorganisms, there is ozonation. The objective of this study was to determine the concentration and the saturation time of ozone gas in rice grains and set the effective ozonation disinfection time in filamentous fungi and yeast. Rice grains (14.3% w.b.) were inoculated with Penicillium spp. and Aspergillus spp. and, subsequently, ozonized at the concentration of 10.13 mg L-1, under continuous flow of 1.0 L min-1, in five periods of exposure (12, 24, 36, 48 and 60 h). Ozone gas concentration and saturation time in rice grains were 5.00 mg L-1 and 13.97 min, respectively. There was a reduction of 3.8 log cycles (100%) in the count of yeasts and complete inhibition of fungal from the genera Aspergillus and Penicillium in ozonized grains.

Genetic bases of appearance quality of rice grains in Shanyou 63, an elite rice hybrid

2000 ◽  
Vol 101 (5-6) ◽  
pp. 823-829 ◽  
Author(s):  
Y. F. Tan ◽  
Y. Z. Xing ◽  
J. X. Li ◽  
S. B. Yu ◽  
C. G. Xu ◽  
...  
Keyword(s):  
Rice Grains ◽  
Appearance Quality ◽  
Rice Hybrid ◽  
Genetic Bases

INFLUENCE OF THE RATIO OF BASIC COMPONENTS ON THE QUALITY OF GRAIN ENERGY BARS

2021 ◽  
Author(s):  
Е.В. КРАСИНА ◽  
И.Б. КРАСИНА ◽  
С.С. КРИЦКАЯ ◽  
А.Н. КУРАКИНА
Keyword(s):  
Dietary Fiber ◽  
Fat Content ◽  
Carbohydrate Content ◽  
High Demand ◽  
Total Dietary Fiber ◽  
Overall Acceptability ◽  
Rice Grains ◽  
Cereal Bars

Зерновые энергетические батончики, пользующиеся большим спросом у потребителей, удобны для введения в рацион полезных для здоровья питательных веществ и функциональных соединений. Исследовано влияние базовых компонентов – взорванных зерен риса, амаранта и киноа на содержание белка, жира, общего пищевого волокна, показатели твердости и общей приемлемости в зерновых энергетических батончиках. Установлено, что содержание белка и жира в образцах батончиков повышалось по мере увеличения в их составе доли зерен киноа и амаранта. Повышение содержания жира привело к снижению содержания углеводов в составе зерновых батончиков. Образцы изготовленных батончиков в зависимости от соотношения зерновых компонентов могут содержать до 7,76% клетчатки, что позволяет классифицировать такое изделие как функциональный пребиотический продукт. Добавление волокнистых ингредиентов влияет на текстуру продукта, повышает твердость, улучшая жевательность и адгезию. Показатель общей приемлемости изготовленных образцов зерновых батончиков варьировал от 5 до 7,9 баллов при 9-балльной оценке. Самую высокую оценку получил образец с равным содержанием в рецептуре взорванных зерен киноа, амаранта и риса, а также отмечены образцы с более высоким содержанием (66,67%) взорванных зерен киноа и амаранта. Grain energy bars, which are in high demand among consumers, are convenient for introducing healthy nutrients and functional compounds into the diet. The influence of the basic components – blasted rice grains, amaranth and quinoa on the protein, fat content, total dietary fiber, hardness, and overall acceptability in grain energy bars was studied. It was found that the content of protein and fat in the samples of bars increased as the proportion of quinoa and amaranth grains in their composition increased. The increase in fat content led to a decrease in the carbohydrate content of cereal bars. Samples of manufactured bars, depending on the ratio of grain components, can contain up to 7,76% fiber, which allows us to classify such a product as a functional prebiotic product. The addition of fibrous ingredients affects the texture of the product, improving the hardness, chewiness and adhesion. The overall acceptability of the manufactured samples of grain bars ranged from 5 to 7,9 points with a 9-point rating. The highest rating was given to a sample with an equal content of exploded quinoa, amaranth and rice grains in the formulation, and samples with a higher content (66,67%) of exploded quinoa and amaranth grains were also noted.

The three important traits for cooking and eating quality of rice grains are controlled by a single locus in an elite rice hybrid, Shanyou 63

1999 ◽  
Vol 99 (3-4) ◽  
pp. 642-648 ◽  
Author(s):  
Y. F. Tan ◽  
J. X. Li ◽  
S. B. Yu ◽  
Y. Z. Xing ◽  
C. G. Xu ◽  
...  
Keyword(s):  
Single Locus ◽  
Eating Quality ◽  
Rice Grains ◽  
Rice Hybrid ◽  
Cooking And Eating Quality
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