Khaled M H Abd El Salam, Germine M Abou El-Soud, Abd El Salam M Marei, Khaled H M Abdel-Rheim, Ahmed Abdel-Megeed, Sobhi F Lamlom
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Super 300 rice cultivar exhibited the highest hulling values (81.23 and 81.42%) when heated to 80 °C, while the Yasmin rice cultivar showed the lowest values for hulling (77.66 and 77.45%) at 70 °C. while Giza 178 cultivar showed a significant decrease in broken percentage (90.85 and 94.02%) compared to control when heated to 80 °C. The results also indicated that the Yasmin rice cultivar had the highest values for white belly, hardness, and gel consistency at 80 °C, while the Sakha 108 cultivar showed the lowest values for these traits at 70 °C. Furthermore, the protein, elongation, and water uptake characters significantly responded to the different investigated treatments. Yasmin cultivar at 80 °C showed the highest significant values for protein (9.26 and 9.47%), elongation (65.02 and 65.44%), and water uptake (453.2 and 455.1 ml water/100 g milled grains) in both seasons. Sakha 108 cultivar had the lowest values for these traits at 70 °C. The S. oryzae insects responded differently to the rice cultivars. Using Dobie's Index of Susceptibility, all cultivars were classified as resistant to S. oryzae infestation. Super 300 was moderately resistant before parboiling but resistant after heat treatment. In conclusion, the study underscores the influence of pre-storage parboiling on rice weevil infestation, suggesting that heat treatment could serve as an effective control measure. 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引用次数: 0
摘要
使用新设计的电动机器在 70、75 和 80 ° C 下对四种埃及水稻品种--Sakha 108、Giza 178、Super 300 和 Egyptian Yasmin--进行了煮沸处理，并测定了它们对 Sitophilus oryzae L. (Coleoptera: Curculionidae) 侵染的敏感性。结果表明，在 2021 和 2022 两个研究季节，加热对所有四个水稻栽培品种的大多数性状都有影响。超级 300 水稻栽培品种在加热至 80 °C 时脱壳率最高（分别为 81.23% 和 81.42%），而 Yasmin 水稻栽培品种在 70 °C 时脱壳率最低（分别为 77.66% 和 77.45%），而 Giza 178 水稻栽培品种在加热至 80 °C 时破碎率（分别为 90.85% 和 94.02%）显著低于对照。结果还表明，Yasmin 水稻品种在 80 °C 时的白肚率、硬度和凝胶稠度值最高，而 Sakha 108 水稻品种在 70 °C 时的这些性状值最低。此外，蛋白质、伸长率和吸水率也对不同的研究处理有显著影响。Yasmin 栽培品种在 80 °C 下的蛋白质（9.26% 和 9.47%）、伸长率（65.02% 和 65.44%）和吸水率（453.2 毫升水/100 克磨碎谷物和 455.1 毫升水/100 克磨碎谷物）在两个季节都表现出最高的显著值。萨哈 108 栽培品种在 70 °C 时这些性状的值最低。S. oryzae 昆虫对水稻品种的反应不同。利用多比感病指数，所有栽培品种都被归类为抗稻飞虱侵染。超级 300 在煮沸前具有中等抗性，但在加热处理后具有抗性。总之，这项研究强调了储藏前煮沸对稻象虫害的影响，表明热处理可作为一种有效的控制措施。这些发现强调了沸煮条件在提高稻谷品质和增强抗虫害能力方面的重要性。
Influence of parboiling conditions on rice grain quality characters and insect infestation with rice weevil (Sitophilus oryzae. L) of some rice cultivars.
Parboiling improves rice grain hardness and reduces susceptibility to Sitophilus oryzae infestation by gelatinizing the starch and enhancing resistance.A newly designed electric machine was used to parboil four Egyptian rice cultivars-Sakha 108, Giza 178, Super 300, and Egyptian Yasmin-at 70, 75, and 80 °C and determine their susceptibility to Sitophilus oryzae L. (Coleoptera: Curculionidae) infestation. Results indicated that heating affected most traits in all four rice cultivars during both study seasons 2021 and 2022. Super 300 rice cultivar exhibited the highest hulling values (81.23 and 81.42%) when heated to 80 °C, while the Yasmin rice cultivar showed the lowest values for hulling (77.66 and 77.45%) at 70 °C. while Giza 178 cultivar showed a significant decrease in broken percentage (90.85 and 94.02%) compared to control when heated to 80 °C. The results also indicated that the Yasmin rice cultivar had the highest values for white belly, hardness, and gel consistency at 80 °C, while the Sakha 108 cultivar showed the lowest values for these traits at 70 °C. Furthermore, the protein, elongation, and water uptake characters significantly responded to the different investigated treatments. Yasmin cultivar at 80 °C showed the highest significant values for protein (9.26 and 9.47%), elongation (65.02 and 65.44%), and water uptake (453.2 and 455.1 ml water/100 g milled grains) in both seasons. Sakha 108 cultivar had the lowest values for these traits at 70 °C. The S. oryzae insects responded differently to the rice cultivars. Using Dobie's Index of Susceptibility, all cultivars were classified as resistant to S. oryzae infestation. Super 300 was moderately resistant before parboiling but resistant after heat treatment. In conclusion, the study underscores the influence of pre-storage parboiling on rice weevil infestation, suggesting that heat treatment could serve as an effective control measure. These findings emphasize the importance of parboiling conditions in enhancing rice grain quality and bolstering resistance to insect infestation.
期刊介绍：
ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.
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