Houketchang Ndomou Serge Cyrille, Balti Beatrice Tapita, Tambo Stephano Tene, Nanga Ndjang Marie Madeleine, Kaskawa Katlafadaou, Kouebou Christiant, Womeni Hilaire Macaire
CRESA Forêt-Bois, Faculty of Agronomy and Agricultural Science, University of Dschang, P.O Box 188, Yaounde, Cameroon.
Research Unit of Biochemistry, Medicinal Plants, Food Sciences and Nutrition, Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon.
Heliyon. 2024 May 9;10(9):e30918. doi: 10.1016/j.heliyon.2024.e30918. eCollection 2024 May 15.
The infestation of rice by pests during the post-harvest phase is one of the consequences of the deterioration of its technological and nutritional quality. Therefore, the present study was carried out to determine the physico-chemical characteristics, functional properties and nutritional value of uninfested and weevil-infested rice during storage. To this end, rice samples were collected from a rice production unit in the Far North Region of Cameroon. The physico-chemical and functional properties of uninfested and infested rice flours were determined using standard methods. The results showed that among the functional properties, only porosity showed a significant difference () between infested (13.88 %) and uninfested (17.30 %) rice flours. Concerning the proximate composition, except for the carbohydrate content, where a significant decrease () was observed between infested (68.15 %) and non-infested (58.43 %) rice flours, no significant difference (p > 0.05) was observed for the other nutrients evaluated. It was also observed that weevil infestation had a significant (p < 0.05) effect on the mineral content of the rice samples. Furthermore, scanning electron microscopy analysis revealed the presence of smaller granules with imprecise shapes in non-infested rice flour. Thus, this study showed that weevil infestation had a significant negative impact on the nutritional quality of rice and that good practices must be adopted by producers to ensure the quality of rice grains during storage.
收获后阶段害虫对水稻的侵害是其工艺和营养品质下降的后果之一。因此，本研究旨在确定储存期间未受侵害和受象鼻虫侵害的水稻的物理化学特性、功能特性和营养价值。为此，从喀麦隆远北地区的一个水稻生产单位采集了水稻样本。使用标准方法测定了未受侵害和受侵害的水稻粉的物理化学和功能特性。结果表明，在功能特性中，只有孔隙率在受侵害（13.88%）和未受侵害（17.30%）的水稻粉之间存在显著差异（）。关于近似成分，除了碳水化合物含量，在受侵害（68.15%）和未受侵害（58.43%）的水稻粉之间观察到显著下降（）外，对评估的其他营养素未观察到显著差异（p>0.05）。还观察到象鼻虫侵害对水稻样本的矿物质含量有显著（p<0.05）影响。此外，扫描电子显微镜分析显示未受侵害的水稻粉中存在形状不精确的较小颗粒。因此，本研究表明象鼻虫侵害对水稻的营养品质有显著负面影响，生产者必须采用良好做法以确保储存期间水稻籽粒的质量。
